PROCEDURE AND DEVICE FOR GRANULATING PLASTICS AND/OR POLYMERS

EXTRUDING HEAD FOR A PLANT TO THE EXTRUSION BLOW MOULDING OF EXCAVATING BODIES, IN PARTICULAR PLASTIC FUEL TANKS

STARTING VALVE FOR GRANULATION DEVICE

CONTINUOUS FLOW DRYER FOR TREATING BULK MATERIAL

A continuous flow dryer system according to various embodiments can include a source for supplying a material to be treated having a high moisture content, such as a distiller wet grain, a profile screw compression dryer, a profile screw, and a drive coupled to the profile screw for axially rotating the profile screw. The profile screw compression dryer includes an inlet for receiving the material for drying, which is fed therein in a controlled manner. The profile screw is provided within the housing of the dryer. The profile screw has a diameter that increases in dimension in a direction away from the inlet for increasing the compressive force applied to the material to assist with drying as the profile screw rotates and moves the material longitudinally along the profile screw to produce a final product, for example, a distiller dried grain for use as an animal feed.

METHOD FOR MONITORING AND CONTROLLING A TWIN-SCREW EXTRUDER, AND TWIN-SCREW EXTRUDER

Pour commander une machine d'extrusion (1) comprenant deux vis interpénétrantes (20) d'entraînement d'une matière à extruder, il est prévu que, pendant qu'une matière à extruder est traitée par la machine d'extrusion, - on mesure en permanence, dans le flux de la matière dans la machine d'extrusion, la viscosité de cette matière, et - on régule la machine d'extrusion à partir de cette mesure de viscosité. Selon l'invention, pour réguler la machine d'extrusion de manière efficace et performante, on modifie son taux de remplissage par la matière le long des vis interpénétrantes en ajustant, en aval de ces vis, une section de passage pour cette matière en fonction de la mesure de viscosité.

METHOD OF OPERATING AND MONITORING OF AN EXTRUSION MACHINE, AS WELL AS EXTRUSION MACHINE

Method and device for granulating plastics and/or polymers

The invention relates to a method for granulating plastics. According to said method, melt that is discharged from a melt generator is delivered to several pelletizing heads via a starting valve (1) that features several operating positions, the melt being granulated by means of the pelletizing heads. The invention further relates to a device for granulating plastics, comprising a starting valve (1) that is provided with at least one melt generator connection (3, 4), at least two granulator connections (5, 6), and a switching gate (14) for selectively connecting the melt generator connection to at least one of the granulator connections. One respective pelletizing head is connected to the at least two granulator connections while a melt generator having a variable melt volume flow rate isconnected to the melt generator connection. The invention is characterized in that several pelletizing heads having different passage capacities are used, whereby the throughput window is increased overall ...

For methods of making polymeric articles

METHOD OF CONTROL AND COMMAND OF AN EXTRUSION MACHINE, AS WELL AS EXTRUSION MACHINE

Pour commander une machine d'extrusion (1) comprenant au moins une vis (20) d'entraînement d'une matière à extruder, le procédé selon l'invention prévoit que, pendant qu'une matière à extruder est traitée par la machine d'extrusion : - on mesure en permanence, dans le flux de la matière dans la machine d'extrusion, la viscosité de cette matière, et - on régule la machine d'extrusion en ajustant, en aval de la ou des vis d'entraînement, une section de passage pour la matière dans la machine d'extrusion, en fonction de la mesure de la viscosité de la matière.

A method for manufacturing a polymer article

The present invention relates to a method enabling either the selection, the modification of existing and/or the creation of newly developed polymer materials which may provide an improved response to the application of a local shear and/or extensional deformation inside the polymer melt in different manufacturing technologies such as and without being exclusive injection molding (IM), injection stretch blow molding (ISBM), direct injection (DI), extrusion blow molding (EBM), sheet extrusion, thermoforming, etc. In addition, a method for manufacturing a polymer article is provided comprising injecting or extruding a molten polypropylene, polyethylene or polyester based polymer for converting it into a (semi) final shape while applying a shear and/or extensional deformation on the polymer melt, wherein applying shear and/or extensional deformation on the polymer melt comprises selectively modifying the flow path of the molten semi-crystallizable polymer as a function of local pressure profile ...

AN APPARATUS FOR THE PELLETIZING OF PLASTICS OR POLYMERS AND A DIVERTER VALVE FOR A PELLETIZING APPARATUS

Method for monitoring and controlling a twin-screw extruder, and twin-screw extruder

According to the invention, in order to control an extruder (1) including two intermeshing screws (20) for driving a material to be extruded, the following steps are performed while a material to be extruded is being processed by the extruder: constantly measuring the viscosity of the material in the flow of said material in the extruder, and adjusting the extruder in accordance with said viscosity measurement. According to the invention, in order to adjust the extruder in an effective and efficient manner, the rate at which the extruder is filled with material along the intermeshing screws is modified by adjusting, downstream from said screws, a flow cross-section for said material in accordance with the viscosity measurement.

중합체 물품의 제조 방법

... 본 발명은, 예컨대 그리고 비제한적으로 사출 성형(IM), 사출 연신 중공 성형(ISBM), 직접 사출(DI), 압출 중공 성형(EBM), 시트 압출, 열성형 등의 상이한 제조 기술에서 중합체 용융물 내부의 국소 전단 및/또는 신장 변형의 적용에 대해 개선된 반응을 제공할 수 있는 기존 중합체 물질의 선택, 변경 및/또는 새로 개발된 중합체 물질의 생성의 구현 방법에 관한 것이다. 또한, 중합체 용융물에 대해 전단 및/또는 신장 변형을 적용하면서 용융 폴리프로필렌, 폴리에틸렌 또는 폴리에스테르계 중합체를 (반)최종 형상으로 전환시키기 위한 이의 사출 단계 또는 압출 단계를 포함하는 중합체 물품의 제조 방법이 제공되며, 여기서 중합체 용융물에 대한 전단 및/또는 신장 변형의 적용은 적어도 일부 유로에 걸친 국소 압력 프로필의 함수로서 용융 반-결정형 중합체의 유로를 선택적으로 변경하는 것을 포함하며, 상기 국소 압력 프로필은 유로의 적어도 상기 부분에 걸쳐 적용된 국소 전단 및/또는 신장 변형에 대한 중합체 용융물의 최적화된 반응의 함수로서 결정된다.

Rubber plastic alloy used for warm mix asphalt and preparation method thereof

The invention discloses a rubber plastic alloy used for warm mix asphalt and a preparation method thereof. The warm mix rubber plastic alloy is made from 5-30% of plastic and 70-95% of rubber powder. The usage amount of cracked wax and rubber oil is 10-50% of the total amount of plastic and rubber powder. The preparation method comprises: the plastic, the rubber powder, the cracked wax and the rubber oil are subject to extrusion by virtue of a single screw type extruder and then subject to granulation by virtue of a water-cooling modular surface grain cutting machine. The application of the rubber plastic alloy is as follows: the rubber plastic alloy is put into an asphalt mixing plant to be mixed with hot mineral aggregate, and then liquid substrate asphalt is pumped to a mixing boiler by virtue of an asphalt pump, thus obtaining warm mix rubber plastic alloy modified asphalt with good performance. The warm mix rubber plastic alloy is applied to asphalt modification, the modification effect ...

METHOD AND AN APPARATUS FOR THE PELLETIZING OF PLASTICS OR POLYMERS

AN APPARATUS FOR THE PELLETIZING OF PLASTICS OR POLYMERS AND A DIVERTER VALVE FOR A PELLETIZING APPARATUS

DISTILLER GRAIN PRODUCTION DEVICE

In various embodiments, a device for producing a high density compact livestock feed from a loose granular material according to various embodiment can include a source for supplying a loose granular material to be treated and moving the treated material through a series of successive treatment zones. Rotatable screws are provided within an extruder to compress and transport the treated material a die. The treated material is pressed through the die while a two-dimensional cross-section compression is applied to the treated material. In various embodiments, the high density compact livestock feed is produced having a high protein content, a high fat content, high shipping durability, high quality, and high nutritional value, without the addition of additives.

method and apparatus for plastics and/or [...][...]

Rubber plastic alloy used for warm mix asphalt and preparation method thereof

The invention discloses a rubber plastic alloy used for warm mix asphalt and a preparation method thereof. The warm mix rubber plastic alloy is made from 5-30% of plastic and 70-95% of rubber powder. The usage amount of cracked wax and rubber oil is 10-50% of the total amount of plastic and rubber powder. The preparation method comprises: the plastic, the rubber powder, the cracked wax and the rubber oil are subject to extrusion by virtue of a single screw type extruder and then subject to granulation by virtue of a water-cooling modular surface grain cutting machine. The application of the rubber plastic alloy is as follows: the rubber plastic alloy is put into an asphalt mixing plant to be mixed with hot mineral aggregate, and then liquid substrate asphalt is pumped to a mixing boiler by virtue of an asphalt pump, thus obtaining warm mix rubber plastic alloy modified asphalt with good performance. The warm mix rubber plastic alloy is applied to asphalt modification, the modificationeffect ...

METHOD AND DEVICE FOR GRANULATING PLASTICS AND/OR POLYMERS

Method and device for granulating plastics and/or polymers

Extruder

CONTINUOUS FLOW DRYER FOR TREATING BULK MATERIAL

A continuous flow dryer system according to various embodiments can include a source for supplying a material to be treated having a high moisture content, such as a distiller wet grain, a profile screw compression dryer, a profile screw, and a drive coupled to the profile screw for axially rotating the profile screw. The profile screw compression dryer includes an inlet for receiving the material for drying, which is fed therein in a controlled manner. The profile screw is provided within the housing of the dryer. The profile screw has a diameter that increases in dimension in a direction away from the inlet for increasing the compressive force applied to the material to assist with drying as the profile screw rotates and moves the material longitudinally along the profile screw to produce a final product, for example, a distiller dried grain for use as an animal feed. 1. A dried grain produced by extruding (a) a material to be treated (1) having a high nutritional value and (2) having an initial moisture content greater than approximately 60% by weight through an extruder to extract the moisture content without lowering the high nutritional value to make (b) a dried grain (1) having the nutritional value substantially the same on a weight basis before extracting the moisture content and (2) having a final total moisture content of less than approximately 15% by weight.2. The dried grain of claim 1 , wherein the dried grain has a high protein content claim 1 , without adding any binders.3. The dried grain of claim 1 , wherein the initial moisture content of the treated material includes two or more different liquids having a respective different boiling point.4. The dried grain of claim 3 , wherein each of the different liquids are successively extracted from the treated material at each respective different boiling point from the treated material by creating a temperature and pressure sufficient to target extraction of a selected liquid claim 3 , without ...

A plastic extruder fuse strip method and device for detecting

METHODS FOR GEL REDUCTION IN POLYOLEFINS

Methods for extrusion of polyolefins ( ) that control specific energy input to the extruder ( ) for gel reduction. Disclosed herein is an example method for forming plastic products ( ) with reduced gels, comprising: melting a polyolefin resin ( ) in extruder ( ) to form a melt; adjusting specific energy input in the extruder ( ) to reduce gels in the melt; and forming the melt into a polyolefin product ( ). Disclosed herein is also an example method for forming plastic products ( ) with reduced gels, comprising: melting a polyolefin resin in extruder ( ) to form a melt; selecting a throttle valve ( ) position for gel reduction; setting the throttle valve ( ) at the selected throttle valve ( ) position to restrict flow of the melt out of the extruder ( ); and forming the melt into a polyolefin product ( ). 1. A method for forming plastic products with reduced gels , comprising:melting a polyolefin resin in extruder to form a melt;adjusting specific energy input in the extruder to reduce gels in the melt; andforming the melt into a polyolefin product.2. The method of claim 1 , wherein the step of adjusting the specific energy input comprises adjusting a throttle valve at an exit of the extruder to increase the specific energy input in the extruder.3. The method of claim 1 , wherein the step of adjusting the specific energy input comprises restricting flow of the melt out of the extruder.4. The method of claim 1 , wherein the step of adjusting the specific energy input comprises increasing suction pressure on a melt pump.5. The method of claim 1 , further comprising passing the melt through a screen pack claim 1 , wherein the screen pack comprises an inlet screen having a size from 20 mesh to 80 mesh claim 1 , one or more intermediate screens having a size of 100 mesh or greater claim 1 , and an outlet screen having a size from 20 mesh to 80 mesh.6. The method of claim 5 , wherein the one or more intermediate screens comprise a screen having a size from 20 mesh 80 ...

METHODS FOR CONTROLLING POLYMER CHAIN SCISSION

Methods for extrusion of polyolefins () that utilize melt temperature to control molecular weight and also reduce gels. Disclosed herein is an example method for controlling polymer chain scission in an extrusion system (), comprising: melting a polyolefin resin () in extruder () at a first melt temperature to form a first melt (); passing the first melt () through a screen pack (); forming the first melt ) into a first polyolefin product (); melting additional polyolefin resin () of the same grade in the extruder () at a second melt temperature to form a second melt (), wherein the second melt temperature differs from the first melt temperature by 5° C. or more to control chain scission in the extruder (); passing the second melt () through the screen pack (); and forming the second melt () into a second polyolefin product (). 1. A method for controlling polymer chain scission in an extrusion system , comprising:melting a polyolefin resin in extruder at a first melt temperature to form a first melt;passing the first melt through a screen pack;forming the first melt into a first polyolefin product;melting additional polyolefin resin of the same grade in the extruder at a second melt temperature to form a second melt, wherein the second melt temperature differs from the first melt temperature by 5° C. or more to control chain scission in the extruder;passing the second melt through the screen pack; andforming the second melt into a second polyolefin product.2. The method of claim 1 , wherein the screen pack comprising a plurality of screens arranged in series claim 1 , wherein the screen comprise an inlet screen having a size from 20 mesh to 80 mesh claim 1 , one or more intermediate screens having a size of 100 mesh or greater claim 1 , and an outlet screen having a size from 20 mesh to 80 mesh.3. The method of claim 2 , wherein the one or more intermediate screen comprising a screen having a size from 20 mesh 80 mesh sandwiched between screens of 100 mesh or larger ...

Device and method of exposure control in a device for producing a three-dimensional object

An exposure control device ( 31 ) serves for equipping and/or retrofitting a generative layer-wise building device ( 1 ). The latter comprises an exposure device ( 20 ) which emits electromagnetic radiation ( 22 ) or particle radiation and is configured to irradiate positions to be solidified in a layer in such a way that after cooling they exist as an object cross-section or part of the same. The exposure control device ( 31 ) has a first data output interface ( 36 ), at which control commands can be output to the exposure device ( 20 ). The control commands which are output specify one of a plurality of exposure types wherein an exposure type is defined by a predetermined combination of a radiation energy density to be emitted by the exposure device ( 20 ) and a scanning pattern with which the radiation ( 22 ) is being directed to a region of a layer of the building material ( 15 ). Furthermore, the exposure control device ( 31 ) has a second data output interface ( 37 ) at which an exposure type can be output in real time in relation to a timing of the output of a control command specifying this exposure type.

FILAMENT FOR EXTRUSION-BASED ADDITIVE MANUFACTURING SYSTEM

A filament is fed to an extrusion head. The filament has a semi-crystalline polymeric reinforcement portion and a polymeric matrix portion. The reinforcement and matrix portions run continuously along a length of the filament. The reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion. The temperature of the filament is raised in the extrusion head above the melting point of the matrix portion but below the melting point of the reinforcement portion so that the matrix portion of the filament melts within the extrusion head, thereby forming a partially molten filament within the extrusion head. The partially molten filament is extruded from the extrusion head onto a substrate, the reinforcement portion of the partially molten filament remaining in a semi-crystalline state as it is extruded from the extrusion head. Relative movement is generated between the extrusion head and the substrate as the partially molten filament is extruded onto the substrate in order to form an extruded line on the substrate. The matrix portion of the extruded line solidifies after the extruded line has been formed on the substrate. 1. A filament for use in an extrusion-based additive manufacturing method , the filament comprising:a semi-crystalline polymeric reinforcement portion which runs continuously along a length of the filament; anda solid polymeric matrix portion which runs continuously along a length of the filament,wherein the reinforcement portion has a higher melting point and a higher crystallinity than the matrix portion.2. The filament of wherein the reinforcement portion and the matrix portion are intertwined with each other so that they both follow tortuous paths along the length of the filament.3. The filament of wherein the reinforcement portion and the matrix portion are twisted together so that they both follow helical paths along the length of the filament.4. The filament of wherein the reinforcement portion comprises a ...

EXTRUDER COMPRISING A DEFLECTION ELEMENT FOR TARGETED FLOW AGAINST PERFORATED PLATE REGIONS

The invention relates to an extruder comprising a housing having a flow channel () for a melt and a perforated plate () delimiting the flow channel () on the outlet side, wherein an inlet flow element () having passage areas () and covering surfaces () is arranged so as to be movable ahead of the perforated plate () in the direction of flow of the melt in such a way that, when the inlet flow element () is moved, a first subset of holes in the perforated plate () is exposed and a second subset of holes in the perforated plate () is closed, wherein the covering surfaces () extend radially from the center of the inlet flow element () to the rim thereof. 1. An extruder , comprising:a housing having a flow channel for a melt and a perforated plate delimiting the flow channel on an outlet side, wherein an inlet flow element having passage areas and covering surfaces is arranged so as to be movable ahead of the perforated plate in a direction of flow of the melt in such a way that, when the inlet flow element is moved, a first subset of holes in the perforated plate is exposed and a second subset of holes in the perforated plate is closed, and wherein the inlet flow element has an inlet flow cone, a base of which faces in a direction of the perforated plate and which tapers conically counter to the direction of flow of the melt.2. (canceled)3. The extruder as claimed in claim 1 , wherein the inlet flow element has a circular cross-sectional area claim 1 , and the movement is accomplished by rotation about a center of the cross-sectional area.4. The extruder as claimed in claim 1 , wherein the covering surfaces extend radially from a center of the inlet flow element to a rim thereof.5. The extruder as claimed in claim 4 , wherein the covering surfaces have a profile in a longitudinal section which has its widest extent at a base thereof facing the perforated plate and tapers counter to the direction of flow of the melt.6. (canceled)7. The extruder as claimed in claim 4 , ...

Polymer composition, electronic device and method of manufacturing the same

The present disclosure relates to a polymer composition including eco-friendly materials, an electronic device and a method of manufacturing the same. The polymer composition according to an aspect of the present disclosure includes a thermoplastic resin at 30 to 70 parts by weight; an eco-friendly resin, including a bio-resin, at 1 to 50 parts by weight; and a silicone resin at 1 to 60 parts by weight based on the total weight of the polymer composition.

METHOD FOR PRODUCING FILAMENTS OF POLYACRYLONITRILE AND EXTRUSION HEAD FOR CARRYING OUT SAID METHOD

A method for producing filaments of polyacrylonitrile and an extrusion head for carrying out said method are provided, wherein the method comprises preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments, a central chamber being defined between the extruder plate and a floating plate connected to a vibrating system, said chamber being surrounded by a peripheral chamber into which the polymer solution is introduced under pressure. The polymer solution then passes through to the central chamber via small radial conduits that accelerate the material, and is subjected to vibration in the central chamber before passing through the extruder plate. 1. A method for producing filaments of polyacrylonitrile , comprising preparing a polyacrylonitrile polymer solution and passing said solution through an extruder plate that determines the formation of filaments , which are introduced in a coagulating medium , before the extrusion step in the extruder plate , the material of the polymer solution to be extruded is subjected to a vibration which is applied by a floating plate connected to a vibrating system , said material of the polymer solution passing into the pre-extrusion vibrating area via radial conduits that accelerate the material.2. The method for producing filaments of polyacrylonitrile according to claim 1 , wherein the vibration that is applied to the material of the polymer solution is generated by ultrasound by a piezoelectric device formed by a high-frequency sonotrode.3. The method for producing filaments of polyacrylonitrile according to claim 1 , wherein back pressure offsetting the pressure of the fluid material of the polymer solution is applied on the floating plate.4. An extrusion head for carrying out the method of claim 1 , comprising an inlet for introducing a polyacrylonitrile polymer solution under pressure and an extruder plate provided with calibrated holes for ...

APPARATUS AND METHOD FOR MANUFACTURING RAW RUBBER STRIP

An apparatus for intermittently manufacturing a raw rubber strip comprises a screw extruder, an extruder head having a preforming nozzle, a gear pump therebetween, a pair of calendar rolls, a roll-gap changer for switching between a close state and an open state of calendar rolls, and a controller for controlling the gear pump, the calendar rolls and the roll-gap changer to let the calendar rolls in the open state prior to the stopping of the rotation of the calendar rolls. 1. A method for intermittently manufacturing a raw rubber strip by the use of an apparatus comprising a rubber extruder unit , a calendar unit disposed in front of the rubber extruder unit , and a controller , whereinthe rubber extruder unit comprises a screw extruder, an extruder head disposed at a front end of the rubber extruder unit, and a gear pump therebetween,the screw extruder comprises an extruder screw for kneading rubber materials supplied and pushing the kneaded rubber materials toward its outlet at the front end thereof,the extruder head comprises a nozzle block having a preforming nozzle for preforming the rubber extruded therefrom,the gear pump has gears and is positioned between the preforming nozzle and said outlet of the screw extruder so that, corresponding to repetition of rotation and stop of gears, the rubber received from the outlet of the screw extruder is intermittently extruded from the preforming nozzle,the calendar unit comprises a calendar disposed in front of the extruder head, and a roll-gap changer,the calendar comprises a pair of calendar rolls at least one of which is driven to rotate and between which the preformed rubber extruded from the preforming nozzle is roll shaped into the raw rubber strip having a finished thickness,the roll-gap changer switches between a close state in which a gap between the calendar rolls is decreased so as to roll shape the preformed rubber, and an open state in which the gap between the calendar rolls is increased so as not to ...

Method and device for the indirect determination of a specific formulation during extrusion

The invention relates to a method for the indirect determination of a specific formulation with an extrusion process in an extrusion device ( 10 ) comprising the following steps: determination of measurement data of at least one processing parameter of the extrusion process of the extrusion device ( 10 ), comparing the determined measurement data with saved data saved in relation to the specific formulation of the same processing parameter, determination of the deviation of the measurement data from the saved data of the same processing parameters and comparing of the deviation with a predefined deviation threshold.

Roller device for treating flat material, in particular for smoothing foils or plates, smoothing device, and method for producing flat material, in particular foils or plates

The present invention relates to a roller device for treating sheet-form material, in particular for smoothing films (F*) or sheets, comprising a first roller unit 1 and a second roller unit 2, wherein each roller unit ( 1, 2 ) comprises: at least one drive motor with a motor moment of inertia J M , a roller ( 10, 20 ) with a roller moment of inertia J W , and at least one gear for the kinematic coupling of the roller ( 10, 20 ) to the at least one drive motor with a transmission ratio i MW between the at least one drive motor and the roller ( 10, 20 ), wherein the roller ( 20 ) of the second roller unit ( 2 ) is rotatable in the opposite direction to the roller ( 10 ) of the first roller unit ( 1 ), and wherein there is formed between the roller ( 1 0 ) of the first roller unit ( 1 ) and the roller ( 20 ) of the second roller unit ( 2 ) a first roller gap ( 40 ) through which the sheet-form material (F) is guided. According to the invention, the roller device is characterised in that in at least one of the first and second roller units ( 1, 2 ), the moment of inertia/speed ratio between the at least one drive motor and the roller ( 10, 20 ) M MW is ≦6 and the transmission ratio 1<i MW ≦40 is chosen, wherein M MW = J M J W · i MW 2 where i MW = ( n M n W ) where n M : speed of the drive motor and n W : speed of the roller ( 10, 20 ). The invention relates further to a smoothing device for smoothing films or sheets, and to a process for the production of sheet-form material, in particular of films or sheets.

METHOD FOR MOLDING TAILORED COMPOSITES

In at least one embodiment, a molding method for producing a molded article is provided. The method may include introducing polymer and fiber separately into an extruder in a first ratio to produce a first extruded material having a first fiber content and in a second ratio to produce a second extruded material having a second fiber content different from the first fiber content. The method may further include filling a first region of a mold with the first extruded material and a second region of the mold with the second extruded material. The extruded material may be formed as blanks for use in compression molding or may be introduced into an injection chamber for use in injection molding. The method may be used to form molded articles having a plurality of regions having different fiber contents. 1. A molded article comprising:a single, fiber-reinforced polymer having a first continuous bulk region with a first fiber content and a second continuous bulk region with a second fiber content different from the first fiber content.2. The molded article of claim 1 , wherein the first and second fiber contents are from 10 to 70 wt %.3. The molded article of claim 1 , wherein the first and second regions contact each other.4. The molded article of claim 1 , further comprising a transition region located between the first and second regions and having a fiber content that is intermediate the first and second fiber contents.5. The molded article of claim 1 , further comprising a third continuous bulk region with a third fiber content that is different from the first and second fiber contents.6. The molded article of claim 1 , wherein the first region and the second region include different fiber types. This application is a Division of U.S. application Ser. No. 14/055,493, filed Oct. 16, 2013. The disclosure of which is incorporated in its entirety by reference herein.One or more embodiments relate to a process for molding components having tailored fiber content.Molded ...

METHOD FOR CONTROLLING A MELT-PROCESSING INSTALLATION

A method for controlling a melt-processing installation, wherein the installation has a melt-feed device, a filtering device, and a melt-processing device. Optionally, a melt pump can be used in addition to, or in lieu of, the melt-feed device. A maximum achievable rate of volume change per unit time of a volumetric feed of the melt-feed device and/or of the melt pump is determined, a maximum volume deviation value of the volumetric feed per unit time to the melt-processing device is determined, and a volume change in the filtering device between the melt-feed device and/or the melt pump and the melt-processing device is set such that a resulting rate of volume change of the filtering device is less than, equal to, or slightly larger than the maximum achievable rate of volume change of the melt-feed device and/or of the melt pump so that the maximum volume deviation value is not exceeded.

BIOMASS CARRIER AND A METHOD OF MANUFACTURING THEREOF

A compressible biomass carrier for use in fluid treatment systems is disclosed. The biomass carrier includes an extruded circumferential mesh-like structure and elongated elements positioned in a space confined by the circumferential mesh-like structure and at least some of the elongated elements are joined to an inner portion of the mesh-like structure. 1. A biomass carrier for use in a fluid treatment system , the biomass carrier comprising:an extruded circumferential mesh-like structure; andelongated elements positioned in a space confined by the circumferential mesh-like structure, at least some of the elongated elements are joined to an inner portion of the mesh-like structure,wherein the biomass carrier is compressible.2. The biomass carrier of claim 1 , wherein the elongated elements are joined to the inner portion of the mesh-like structure during an extrusion process that forms the extruded circumferential mesh-like structure.3. The biomass carrier of claim 1 , wherein the biomass carrier is compressible in a direction defined by the elongated elements.4. The biomass carrier of claim 1 , wherein the circumferential mesh-like structure has a thickness of less than 1000 micron.5. The biomass carrier of comprising a polymeric material having a density of 0.8-1.2 gram/cm.6. The biomass carrier of claim 1 , wherein the mesh-like structure comprises a rhombus mesh.7. The biomass carrier of claim 1 , wherein the extruded mesh-like structure comprises a plurality of threads arranged approximately parallel to the extruder's central axis and connected by at least two end-rings.8. The biomass carrier of claim 1 , wherein the elongated elements has a width of 2.5-20 mm.9. The biomass carrier of claim 1 , wherein the biomass carrier comprises a polymeric material.10. The biomass carrier of claim 9 , wherein the polymeric material comprises a high density polyethylene (HDPE) claim 9 , a polyethylene terephthalate (PET) claim 9 , a low density polyethylene (LDPE) claim 9 ...

DEVICE AND METHOD FOR COOLING FOIL MATERIAL

A device and method for cooling foil material are provided, comprising: a movable belt, wherein the belt is intended for receiving the foil material at a first predetermined position of the device, for transporting the foil material received, and for discharging the foil material at a second predetermined position, wherein the device is adapted to cool the foil material received and/or the belt. 1. A device for cooling stretch foil material , comprising:a movable belt, wherein the belt is intended for receiving the foil material at a first predetermined position of the device, for transporting the received foil material, and for discharging the foil material at a second predetermined position,a first roll and a second roll, wherein the belt is led over the first roll and over the second roll,{'b': '100', 'wherein the device is adapted to cool the received foil material () and/or the belt,'}a cooling liquid bath, wherein the belt and the foil material are movable through the cooling liquid bath,wherein the first predetermined position being located in an area, where the belt rests on the first roll and the roll is immersed into the cooling liquid bath together with the belt in rotation direction,and wherein the second predetermined position being located in an area where the belt rests on the second roll, andmeans for blowing water off from the belt the means for blowing water off from the belt being the first means located in the direction of movement of the belt at or behind the second roll.2. The device of claim 1 , wherein the belt is an endless belt claim 1 , in particular claim 1 , a belt made from steel claim 1 , preferably claim 1 , chromium-plated.3. (canceled)4. (canceled)5. (canceled)6. The device of claim 1 , wherein the first predetermined position is located above the liquid level of the cooling liquid bath.7. (canceled)8. The device of claim 1 , further comprising: at least one third roll claim 1 , wherein the at least one third roll is arranged so as ...

METHOD FOR MANUFACTURING A MATERIAL STRAND ASSEMBLY

A method for manufacturing a material strand assembly for a vehicle. The method includes: extruding strand material in an extruder so that an extruded material strand is produced; monitoring the quality of the extruded material strand so as to detect faults of the extruded material strand; in case of a detection of a fault, cutting out the fault from the material strand and re-joining cutting end faces, thus producing a joint, so that a faultless material strand is produced. The cutting-out step is conducted such that any two adjacent joints are at a minimum joint distance from each other. The faultless material strand is stored in a storage unit so as to produce the material strand assembly. The extruded material strand is passed through a first strand accumulator between the extruder and the cutting arrangement and through a second strand accumulator between the cutting arrangement and the storage unit. 2. The method of claim 1 , wherein the cutting step includes the use of at least two cutters that are arranged at an axial cutter distance from each other claim 1 , wherein the axial cutter distance is axially shorter than the minimum joint distance.3. The method of claim 1 , wherein the cutting step includes the use of at least two cutters that are arranged at an axial cutter distance from each other claim 1 , wherein the axial cutter distance is axially longer than an average axial fault length.5. The method of claim 4 , wherein claim 4 , if a joint is produced claim 4 , the position of the joint is neither recorded nor marked.6. The method of claim 4 , wherein claim 4 , if a joint is produced claim 4 , the position of the joint is marked on the material strand by a single marking which has an axial marking length that is shorter than an axial joint length of the joint.7. The method of claim 4 , wherein claim 4 , if a joint is produced claim 4 , the position of the joint is recorded by recording one single axial position that identifies the joint.8. The method of ...

RAPID PROTOTYPING DEVICE AND METHOD THEREOF

The invention provides a rapid prototyping device and method thereof. The rapid prototyping device comprises an environmental temperature sensor, a control module, a nozzle, and a heating device. The rapid prototyping method comprises following steps of: sensing an environmental temperature, acquiring a nozzle heating temperature according to the environmental temperature; and heating a nozzle till reaching the nozzle heating temperature. After the preparation of the rapid prototyping device, the environmental temperature sensor senses an environmental temperature, then the control module acquires a nozzle heating temperature based on the environmental temperature, and then the control module controls the heating device for heating the nozzle to the nozzle heating temperature. By the temperature compensating function of the present invention, the quality of the heating material ejected by the nozzle can be maintained. 1. A rapid prototyping device comprising:a nozzle;a heating device, connected to the nozzle for heating the nozzle;an environmental temperature sensor, adapted for sensing an environmental temperature and outputting an environmental temperature signal, wherein the environmental temperature sensor is separated from the nozzle with a predetermined distance to reduce the influence of the heating device on the environmental temperature sensor, and the variation of the environmental temperature sensed by the environmental temperature sensor which is caused by the heating device is within a threshold; anda control module, electrically coupled to the environmental temperature sensor and the heating device;wherein the control module receives the environmental temperature signal and acquires a nozzle heating temperature according to the environmental temperature signal for controlling the heating device to heat the nozzle to the nozzle heating temperature.2. The rapid prototyping device of claim 1 , wherein the environmental temperature sensor comprises a ...

APPARATUS AND METHOD FOR MANUFACTURING MESH-LIKE POLYMERIC STRUCTURES

A method and apparatus for manufacturing a combined polymeric structure are disclosed. The apparatus includes an extruder body (), a die () configured to receive flowing polymeric material from the extruder body () and a motion unit. The die includes a hollow inner die (), a protecting sleeve () located within the inner die () and an outer die () located at an exit () end of the hollow inner die (). The motion unit is configured to cause bidirectional translational motion of the hollow inner die () relative to the outer die (). 1. An apparatus comprising:an extruder body;a die configured to receive flowing polymeric material from the extruder body, the die comprises a hollow inner die, a protecting sleeve located within the inner die and an outer die located in the vicinity of an exit end of the hollow inner die; anda motion unit configured to generate a relative bidirectional translational motion between the hollow inner die and the outer die.2. The apparatus of claim 1 , wherein the protecting sleeve comprises a cooling element.3. The apparatus of claim 1 , wherein the protecting sleeve comprises an insulating element.4. The apparatus of claim 1 , wherein the protecting sleeve is configured to maintain a temperature within the inner die below a predetermined temperature.5. The apparatus of claim 1 , comprising solid-part feeder configured to provide solid elongated parts to the inner die.6. The apparatus of claim 1 , wherein the motion unit is further configured to generate rotational motion of the hollow inner die.7. The apparatus of claim 1 , comprising:a controller configured to control the motion unit to generate the bidirectional translational motion according to a predetermined sequence.8. The apparatus of claim 7 , wherein the motion unit is further configured to generate rotational motion of the hollow inner die and the controller is further configured to control the motion unit to generate the rotational motion of the according to a second predetermined ...

METHOD FOR MONITORING AND CONTROLLING A TWIN-SCREW EXTRUDER, AND TWIN-SCREW EXTRUDER

In the disclosed method, in order to control an extruder including two intermeshing screws for driving a material to be extruded, the following steps are performed while a material to be extruded is being processed by the extruder: constantly measuring the viscosity of the material in the flow of the material in the extruder, and adjusting the extruder in accordance with the viscosity measurement. In order to adjust the extruder in an effective and efficient manner, the rate at which the extruder is filled with material along the intermeshing screws is modified by adjusting, downstream from the screws, a flow cross-section for the material in accordance with the viscosity measurement. 115-. (canceled)16. A method for monitoring and controlling an extruder , the extruder comprising two intermeshing screws for driving a material to be extruded , the method comprising , while a material to be extruded is processed by the extruder:continuously measuring the viscosity of the material in a flow of said material in the extruder, andadjusting the extruder from corresponding material viscosity measurement results, so that a material filling level of the extruder, at which the extruder is filled by the material along the intermeshing screws, is modified by adjusting, downstream from these screws, a passage section for the material based on the material viscosity measurement results.17. The method according to claim 16 , a sheath inside which the intermeshing screws are rotated and the material advances under the action of these screws, and', 'an output device, which is arranged at a downstream end of the sheath and in a flow channel of which the material leaving the sheath is forced to flow under the action of the intermeshing screws;, 'wherein the extruder further comprisesand wherein in order to adjust the extruder, the material filling level in the sheath is adjusted by adjusting a passage section of the flow channel.18. The method according to claim 17 , wherein the ...

TERAHERTZ MEASURING DEVICE AND METHOD FOR MEASURING TEST OBJECTS

Measuring device for measuring test objects includes a transmitter-receiver unit and a corresponding mirror arrangement. Mirror arrangement has a first mirror forming a first focal point and a second focal point in an x-y plane, and first mirror is, at least sectionally, elliptically curved for deflecting radiation between the focal points. Mirror arrangement includes a second mirror arranged in region of first focal point, second mirror is used for deflecting radiation between a z-direction extending transversely to the x-y plane and between the x-y plane. Test object to be measured is arranged in region of second focal point by a test object holder. Radiation reflected on test object is evaluated by a control unit. Measuring device allows measuring of test object in simple and flexible way, in particular measurement over the entire circumference of test objects in form of plastic pipes having circular cross sections. 1. Terahertz measuring device for measuring test objects , comprising: i) a transmitter for emitting Terahertz radiation in the Terahertz frequency band between 0.01 THz and 50 THz;', 'ii) an associated receiver for detecting a radiation reflected on the test object in the Terahertz frequency band between 0.01 THz and 50 THz;, 'a) at least one transmitter-receiver unit including i) a first mirror, which forms in an x-y-plane a first focal point and a second focal point;', 'ii) which is, at least partially, curved elliptically for deflecting the radiation between the focal points; and', 'iii) a second mirror, disposed in the area of the first focal point, for deflecting the radiation between a direction z running perpendicular to the x-y plane and the x-y plane; and, 'b) at least one mirror array including'}c) a test object holder for arranging the test object in the area of the second focal point; andd) a control unit for determining a wall thickness or layer thickness of the test object, the control unit being connected to the transmitter and the ...

IMPROVED SEPARATORS, BATTERIES, SYSTEMS, VEHICLES, AND RELATED METHODS

Improved battery separators, base films or membranes and/or a method of making or using such separators, base films or membranes are provided. The preferred inventive separators, base films or membranes are made by a dry-stretch process and have improved strength, high porosity, high charge capacity and high porosity to provide excellent charge rate and/or charge capacity performance in a rechargeable battery. 1. A membrane comprising:a microporous polymer film that provides a battery with at least 3 C charge and/or discharge performance.2. The membrane according to wherein said microporous polymer film preferably made by a dry-stretch process and preferably having substantially round shaped pores claim 1 , and a ratio of machine direction tensile strength to transverse direction tensile strength in the range of 0.5 to 5.0 claim 1 , and porosity in the range of 50% to 80%.3. The membrane according to wherein said film being made by a method of stretching including at least one of: biaxial stretching including a machine direction stretch and a transverse direction stretch with a simultaneous controlled machine direction relax claim 1 , simultaneous or sequential machine direction stretch and transverse direction stretch claim 1 , and machine direction stretch followed by transverse direction stretch with simultaneous machine direction relax.4. The membrane according to wherein the polymer being at least one of a semi-crystalline polymer and a semi-crystalline polymer having a crystallinity in the range of 20-80%.5. The membrane according to wherein said polymer being selected from the group consisting of polyolefins claim 1 , fluorocarbons claim 1 , polyamides claim 1 , polyesters claim 1 , polyacetals (or polyoxymethylenes) claim 1 , polysulfides claim 1 , polyvinyl alcohols claim 1 , co-polymers thereof claim 1 , and combinations thereof.6. The membrane according to wherein an average pore size of said microporous polymer film being in the range of 0.09 to 0.99 ...

Systems and methods for making composite structures

A system for depositing a composite filler material into a channel of a composite structure includes an end-effector configured to extrude a bead of the filler material into the channel. The filler material can comprise a first group of relatively long fibers, a second group of relatively short fibers and a resin. A drive system is configured to move the end-effector relative to the channel, and a position sensor is configured to detect the position of the bead relative to the channel. A controller is configured to operate the drive system in response to the detected position and to operate the end-effector to heat and compress the filler material so as to orient the longer fibers in a substantially longitudinal direction relative to the channel and the shorter fibers in substantially random directions relative to the channel when the bead is extruded into the channel.

SYSTEM AND METHOD FOR AUTOMATED PRESSURE REGULATION OF AN EXTRUDER OUTPUT

A system and method of regulating a pressure of a fluid with a valve block having a valve block inlet in fluid communication with an outlet of an extruder and a valve block outlet in fluid communication with a die. A transducer in fluid communication with the flow channel and in signal communication with a controller of the motor can sense a pressure and communicate the pressure to a controller of a motor. The motor can adjust a position of a valve to regulate the pressure of the fluid. 1. A method of regulating a pressure of a fluid within a flow channel in fluid communication with an outlet of an extruder and an inlet of a die using a valve selectively positionable within said flow channel and a transducer in fluid communication with said flow channel and in signal communication with a controller of a motor , the method comprising:sensing a pressure of a fluid travelling through said flow channel using said transducer; if the signal indicates the pressure is below a target pressure, actuating said motor to drive said valve in a first direction with respect to said flow channel; and', 'if the signal indicates the pressure is above the target pressure, actuating said motor to drive said valve in a second direction opposite to the first direction with respect to said flow channel., 'sending a signal representative of the pressure from said transducer to said controller of said motor; and'}2. The method of claim 1 , wherein the pressure is sensed upstream of said valve in a direction of fluid travel through said flow channel.3. The method of claim 1 , further comprising translating said valve with respect to said flow channel.4. The method of claim 1 , wherein said valve is connected to a worm gear claim 1 , further comprising translating the valve with respect to said flow channel by rotating said worm gear.5. The method of claim 1 , wherein the pressure is sensed downstream of said valve in a direction of fluid travel through said flow channel.6. A valve system for ...

SYSTEM AND METHOD FOR ADJUSTING THE LAND CHANNEL LENGTH ON AN EXTRUSION DIE

An extrusion die with adjustable land channel can be formed of a die body that includes a first die body portion and a second die body portion, a first lip body, a second lip body, and a land channel body. The extrusion die can have a flow channel that includes a land channel terminating in an outlet orifice. The flow channel may be bound on one side by the first die body portion, the land channel body, and the first lip body. The flow channel may be bound on an opposite side by the second die body portion and the second lip body. In some examples, the length of the land channel is adjustable by configuring the land channel body and/or first lip body to move across the width of the flow channel. 1. A method of adjusting a length of a land channel using an extrusion die having a flow channel terminating in an outlet orifice , the flow channel being bound on one side by at least a first die body , a land channel body , and a first die lip and being bound on an opposite side by at least a second die body and a second die lip , the method comprising:advancing said first die lip toward said second die lip and thereby adjusting a width of the outlet orifice; andadvancing said land channel body toward at least one of said second die body and said second die lip and thereby adjusting the length of the land channel.2. The method of claim 1 , wherein advancing said first die lip toward said second die lip comprises advancing said second die lip toward said first die lip such that said first die lip and said second die lip move equal distances but in opposite directions.3. The method of claim 2 , wherein advancing said first die lip claim 2 , advancing said second die lip claim 2 , and advancing said land channel body comprises simultaneously advancing said first die lip claim 2 , advancing said second die lip claim 2 , and advancing said land channel body.4. The method of claim 1 , wherein said first die body has a first flow channel face claim 1 , said second die body has a ...

METHODS FOR MANUFACTURING METAL-RESIN COMPOSITE PIPE THAT CAN BE EASILY WOUND INTO RING SHAPE

The present invention may manufacture a composite pipe by forming an adhesive layer and a resin layer on an outer surface of a metal pipe, and although the composite pipe is wound in a ring shape after the composite pipe is manufactured, a circular cross sectional shape may be maintained without deformation, and after the composite pipe is straightened for the purpose of construction, separation or buckling may be prevented, resulting in excellent transportability and constructability of a product. 1. A method of manufacturing a three-layer metal resin composite pipe , the method comprising the steps of:{'b': '30', '(a) manufacturing a metal pipe using thin plate stainless steel; and,'}{'b': 30', '40', '30', '50', '40, '(b) coating the metal pipe by forming an adhesive layer on an outer surface of the metal pipe and by forming a resin layer by extruding a polyethylene resin on the adhesive layer ,'}{'b': 30', '40', '50, 'wherein the metal pipe forms the first layer, the adhesive layer forms the second layer and, the resin layer forms the third layer,'}{'b': 30', '50, 'wherein a thickness (p) of the metal pipe is within a range of 5% to 20% of a thickness q of the resin layer ,'}{'b': '30', 'wherein while the metal resin composite pipe is manufactured as a straight pipe, the metal resin composite pipe is adapted to be wound in a ring shape and to go back to a straight shape without deformation to the circular cross section of the metal pipe and the metal resin composite pipe.'}2. The method of claim 1 , wherein after the step (b) claim 1 , the method comprises winding the composite pipe in a ring shape claim 1 , and a diameter (u) of the ring shape is greater 20 times to 50 times than the outer diameter (G) of the composite pipe.330200. The method of claim 2 , wherein the step (b) is performed by extruding the adhesive resin and the polyethylene resin in a sequential order while the metal pipe passes through a coating mold unit claim 2 ,{'b': 200', '210', '230', '210 ...

SYSTEM AND METHOD FOR ROLL ALIGNMENT OF A MULTI-NOZZLE EXTRUDER IN THREE-DIMENSIONAL OBJECT PRINTERS

A method for identifying an angle of roll for a multi-nozzle extruder includes moving the extruder in a first process direction to form a first set of swaths of extrusion material using two nozzles in the extruder and moving the extruder in a second process direction to form a second set of swaths of extrusion material. The method further includes identifying a location of one nozzle relative to the other nozzle in two dimensions based on cross-process direction distances between the first and second sets of swaths and identifying the angle of extruder roll for the extruder based on the location of the one nozzle and a predetermined geometry of the extruder. 1. A method operating a three-dimensional object printer comprising:moving, with a first actuator, a multi-nozzle extruder in a first process direction within a print zone of the three-dimensional object printer;operating at least a first nozzle and a second nozzle in a plurality of nozzles in the multi-nozzle extruder to emit a first swath and a second swath, respectively, of an extrusion material onto a surface of a receiving member in the print zone during the moving of the multi-nozzle extruder in the first process direction;moving, with the first actuator, the multi-nozzle extruder in a second process direction within the print zone of the three-dimensional object printer, the second process direction being different than the first process direction;operating at least the first nozzle and the second nozzle in the plurality of nozzles in the multi-nozzle extruder to emit a third swath and a fourth swath, respectively, of the extrusion material onto the surface of the receiving member in the print zone during the moving of the multi-nozzle extruder in the second process direction;generating, with an optical sensor, scanned image data of the first swath, the second swath, the third swath, and the fourth swath;identifying, with a controller, a measured two-dimensional location of the second nozzle relative to ...

VAPOR-PERMEABLE, SUBSTANTIALLY WATER-IMPERMEABLE MULTILAYER ARTICLE

This disclosure relates to an article (e.g., a vapor-permeable, substantially water-impermeable multilayer article) that includes a nonwoven substrate and a film supported by the nonwoven substrate. The film includes a polyolefin, a nanoclay, and a pore-forming filler. 123-. (canceled)24. A method of making an article , comprising:forming a laminate comprising a nonwoven substrate and a film supported by the nonwoven substrate, the film comprising a polyolefin, a nanoclay, and a pore-forming filler; andstretching the laminate to form pores in the film and to provide the article.25. The method of claim 24 , wherein forming the laminate comprises extruding the film onto the nonwoven substrate.26. The method of claim 24 , wherein the elevated temperature is at least about 30° C.27. The method of claim 24 , wherein the laminate is stretched in the machine direction.28. The method of claim 24 , wherein the laminate is stretched in the cross-machine direction.29. The method of claim 24 , wherein the laminate is stretched by a method selected from the group consisting of ring rolling claim 24 , tentering claim 24 , embossing claim 24 , creping claim 24 , and button-breaking.30. The method of claim 24 , further comprising embossing the laminate before or after stretching the laminate.31. The method of claim 24 , further comprising bonding randomly disposed polymeric fibers to produce the nonwoven substrate before forming the laminate.3235-. (canceled)36. The method of claim 24 , wherein the nanoclay comprises particles having an average aspect ratio of from 200 to about 500.37. The method of claim 24 , wherein the nanoclay has an average thickness of from about 0.5 nm to about 2 nm.38. The method of claim 24 , wherein the film comprises from about 0.1% by weight to about 20% by weight of the nanoclay.39. The method of claim 24 , wherein the polyolefin comprises a polyethylene claim 24 , a polypropylene claim 24 , or a copolymer thereof.40. The method of claim 39 , wherein ...

Extruder and method for extruding cord reinforced tire components

Provided is an extruder and a method for extruding cord reinforced tire components, wherein the extruder has an extruder head with a die and a cord guide. The die is provided with a cross sectional profile that defines a first cross section of the extrusion material in the die, wherein the cross sectional profile has a profile height. The cord guide is arranged for guiding the cords into the die at a cord entry height. The extruder head is provided with first heating elements. The extruder has a control unit that is operationally connected to the first heating elements for generating an adjustable height temperature gradient in the extrusion material across the profile height to control swelling of the extrusion material relative to the cord entry height from the first cross section to a second cross section after the extrusion material leaves the die. 140-. (canceled)41. An extruder with an extruder head for extruding cord reinforced tire components , wherein the extruder head comprises a die for receiving an extrusion material , flow channels that debouch into the die and a cord guide for guiding cords into the die so that in use the cords are embedded in the extrusion material , wherein the die is provided with an elongate cross sectional profile that defines a first cross section of the extrusion material in the die , wherein the cross sectional profile has a profile width and a profile height that is relatively small with respect to the profile width , wherein the cord guide is arranged for guiding the cords into the die at a cord entry height with respect to the profile height , wherein the extruder head is provided with one or more first heating elements which are positioned at the die downstream of the flow channels for transferring heat into the extrusion material from a first side of the profile height at the die , wherein the extruder further comprises a control unit that is operationally connected to the one or more first heating elements for generating ...

CALIBRATION CAGE FOR THE PRODUCTION OF BLOWN FILMS

A calibration cage for the production of a blown film is provided. It has a supporting structure and a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of the supporting structure at the vertices of a regular polygon, each frame carrying a vertical rod rotatable with respect thereto which in turn carries at least one element for guiding a blown film, each vertical rod being connected to the vertical rods adjacent thereto through connection elements that are rigid in the horizontal plane yet have a length variable in the plane, each connection element being pivoted between two horizontal pivots each of which forms with a vertical radial plane having the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle (α) of the regular polygon. 118.-. (canceled)13. A calibration cage for the production of a blown film , said calibration cage comprising:a) a supporting structure;b) a plurality of frames rotatable in the horizontal plane which are pivoted along the perimeter of said supporting structure at the vertices of a regular polygon;c) a vertical rod on each of said frames, each rod being carried by one of said frames and being rotatable with respect thereto; andd) at least one element on each of said vertical rods, each element being configured to guide a blown film,wherein each of said vertical rods is connected to at least one of the vertical rods adjacent thereto through at least one connection element that is rigid in the horizontal plane yet has a length variable in said plane through the relative motion of at least two parts thereof, said at least one connection element being pivoted between said adjacent vertical rods through two horizontal pivots, the axis of rotation of each of said horizontal pivots forming with a vertical radial plane comprising the axis of rotation of the respective vertical rod an angle that is equal to half of the internal angle of said regular polygon. ...

METHOD FOR PRINTING OF THREE-DIMENSIONAL OBJECTS

A method for preventing detachment of a three-dimensional object from a printing tray of a printing apparatus is disclosed. The method includes printing a carpet of building material below and around the base of a three-dimensional object to be printed; and printing said three-dimensional object. The portions of the carpet that protrude out of the boundaries of the base of the three-dimensional object are coated with one or more layers of support material to help keep the carpet flexible and adhesive in texture. 1. A method for improved quality printing of a three-dimensional object , the method comprising:dispensing one or more building materials in consecutive layers to form a three-dimensional object;dispensing at least one of said building materials in each consecutive layer to construct a thickening layer of building material having a predetermined thickness around the entire three-dimensional object; andremoving said thickening layer after the forming of the three-dimensional object is complete.2. The method of claim 1 , wherein the thickening layer serves to shield external surfaces of said three-dimensional object from disproportionate curing and/or uneven heating or cooling.3. The method of claim 1 , wherein the thickening layer serves to prevent accumulation of excess building material on surfaces of the three-dimensional object.4. The method of claim 1 , wherein the thickening layer serves to prevent or minimize deformation caused by thermal inconsistencies between inner and outer parts of the three-dimensional object claim 1 , during the formation thereof.5. The method of claim 1 , wherein the thickening layer serves to yield even finishing of all surfaces of said three-dimensional object.6. The method of claim 1 , wherein the thickening layer serves to prevent damage to the three-dimensional object caused by knocking or collision of a leveling device used during the printing of the three-dimensional object.7. The method of claim 1 , wherein said ...

A method of extruding a thermoplastic polymer of a desired color and an apparatus for performing the method

The present invention comprises a method. The method comprises selectively feeding color masterbatch thermoplastic polymer pellets or granules to an extruder from a first gravimetric feeder operatively connected to a computing device and adapted to receive signals from the computing device to control the amount of the color masterbatch thermoplastic polymer pellets or granules dispensed therefrom and feeding non-colored thermoplastic polymer pellets or granules to the extruder from a second gravimetric feeder operatively connected to the computing device and adapted to receive signals from the computing device to control the amount of non-colored polymer pellets or granules dispensed therefrom. The method further comprises wherein the computing device is adapted to send signals to the first and second gravimetric feeders to separately adjust the rates at which the first and second gravimetric feeders each feed the color masterbatch thermoplastic polymer pellets or granules and the non-colored thermoplastic polymer pellets or granules to the extruder; wherein the second gravimetric feeders is sent signals to continuously feed the non-colored thermoplastic polymer pellets or granules to the extruder at a desired rate; and wherein the first gravimetric feeder is randomly sent signals to feed the color masterbatch thermoplastic polymer pellets or granules to the extruder at a first rate and randomly sent signals to feed the color masterbatch thermoplastic polymer pellets or granules to the extruder at a second rate that is different from the first rate.

A FIBER PRODUCTION SYSTEM AND PRODUCTION METHOD

The present invention relates to a fiber production system () and production method which enables heat treatment applied during fiber production to be performed as applying laser on the fiber. The objective of the present invention is to provide a fiber production system () and production method which enables to perform momentary heat treatment on the filament (F) via laser beam (L) and which eliminates defected points in the filament structure by heating fast and drawing in fiber production. 1. A fiber production system , for preventing the skin-core structure formed in the fiber and/or eliminating this structure , comprising:at least one molten forming member which enables the polymeric crude material to be used in fiber production to be heated and melted,at least one extrusion member which enables the molten crude material to be passed through at least one spinneret at its end part,at least one cooling unit which provides filament structure to the crude material going out of the extrusion member and passing through the spinnerets by cooling it,a plurality of rollers which enables the crude material to be heated above glass transition temperature or crystallization temperature and the fiber material in filament form to reach a certain crystallinity by being drawn at a certain tension,at least one mobile laser device which enables to form a balanced heat distribution and thus the defect in the filament structure to be eliminated by drawing via heat and the rollers by applying laser beam on the filament during drawing the filaments with the rollers,at least one heated chamber which is located between any two rollers, preferably before the fourth roller, applying heat on the material in order to increase crystallinity in the fiber material drawn with the rollers, and enabling the continuity of the filament structure provided to the material,at least one control member which enables to guide the mobile laser device to the related area according to the data it receives ...

Method for Preparing for a Change of Material in an Extrusion Device for a Film Machine

The present invention relates to a method for preparing for a change of material in an extrusion device for a film machine comprising at least one feed unit for feeding feedstock to an extruder, comprising the following steps: 1. A method for preparing for a change of material in an extrusion device for a film machine comprising at least one feed unit for feeding feedstock to an extruder , comprising the following steps:predetermining an end of a production order of an extrusion device,specifying a reduced changing filling level for the at least one feed unit, andmaintaining the filling level of the at least one feed unit at the reduced changing filling level for the further production with the extrusion device.2. The method according to claim 1 , wherein the filling level of the at least one feed unit is increased in batches claim 1 , when the filling level falls below the changing filling level.3. The method according to claim 2 , wherein the increase of the filling level in batches is made with a single refilling thrust claim 2 , which refills less feedstock than an operating thrust during the normal production operation of the extrusion device.4. The method according to claim 2 , wherein at least the volume or the weight of feedstock claim 2 , which corresponds to the changing filling level in the feed unit claim 2 , has a refilling ratio of between 1:1 and 2:1 with at least the volume or the weight of the feedstock of a refilling thrust.5. The method according to claim 1 , wherein a minimal filling level claim 1 , which is smaller than the changing filling level claim 1 , is specified at a defined point in time prior to the end of the production order claim 1 , and the filling level of the at least one feed unit is maintained above the minimal filling level for the further production with the extrusion device.6. The method according to claim 1 , wherein provision is made for at least two feed units claim 1 , wherein a specific changing filling level is ...

DEVICE AND METHOD FOR TESTING MATERIALS

The invention relates to a device and a method for testing materials, and is characterized in that the device comprises application units () for interaction modules () and an exchange system for the interaction modules, and the device is designed such that the application units () automatically feed interaction modules () to the exchange system after a control signal and the exchange system is designed to feed the interaction modules to a test position. 12121. Device for testing materials , wherein the device comprises application units () for interaction modules () and an exchange system for interaction modules , and the device is designed such that the application units () automatically feed interaction modules () to the exchange system after a control signal and the exchange system is designed to feed the interaction modules to the measuring area.2. Device according to claim 1 , wherein the device further comprises a dispensing system for used interaction modules and the exchange system is further configured to feed used interaction modules to the dispensing system after a measurement claim 1 , and the dispensing system preferably further comprises at least one storage unit for storing the dispensed interaction modules.3. Device according to claim 1 , wherein the device comprises sensors and/or comprises interaction modules and in particular these interaction modules in turn comprise sensors claim 1 , by means of which measurements can be taken claim 1 , preferred sensors being chemical indicators or electric sensors claim 1 , in particular co-operating with a power source and a data memory or elements used for wireless data transmission.4. Device according to claim 1 , wherein it comprises a control unit which automatically knows which measurement task is about to be performed claim 1 , feeds the interaction module to the corresponding measuring area and generates and exports an address or code for a data memory.5. Device according to claim 1 , wherein the ...

METHOD AND APPARATUS FOR OPERATING A SCREENING WHEEL FILTER

A method and an apparatus for operating a screening wheel filter for high-viscosity melts with pressures of >10 bar and temperatures of >90° C., wherein a screening wheel () is rotationally driven step by step, and screening inserts () arranged in the screening wheel () are successively subjected to a stream of cleaning agent produced by a cleaning agent drive () in a backflushing cleaning station, are to be optimized in such a way that less cleaning agent is used, better cleaning of the screening inserts takes place and a saving of energy is ensured. For this purpose it is proposed that the cleaning backflushing in the backflushing cleaning station takes place during the rotation of the screening wheel (), wherein an open-loop or closed-loop control device () assigned to the cleaning agent drive () is used to set the amount of cleaning agent and/or the pressure of the cleaning agent and/or the flow rate of the cleaning agent in dependence on the rotational speed of the screening wheel () and/or in dependence on a differential pressure prevailing at the screening inserts () located in the melt channel () and the effective opening of the slot die normal to the radial is less than the distance covered by the screening wheel () during a driving step. 1. A method of operating a sieve-wheel filter for high-viscosity melts with pressures of >10 bar and temperatures of >90° C. , the method comprising the steps of:rotating a sieve wheel in steps such that mesh inserts set in the sieve wheel are successively passed through a back-flushing station and through a filtering station aligned with a melt conduit;forcing a stream of cleaning agent from a cleaning-agent supply during rotation of the sieve wheel through the inserts when in the back-flushing station;adjusting by a controller connected with the cleaning-agent supply the quantity and/or pressure and/or flow speed of the cleaning agent as a function of the temporal course of the rotation of the sieve wheel and/or as a ...

Enhancing die flatness

Methods and apparatus for enhancing the flatness of a die by applying adhesive to a shim having a selected flatness, rotating the shim to spread the adhesive to a layer having a uniform thickness, evacuating a chamber to create a vacuum; manipulating a die onto the adhesive layer in the chamber; and reducing a level of the vacuum to pressure the die onto the adhesive layer such that the bow in the die is reduced as the die conforms to the shim.

Method for producing polyethylene-based resin extruded foam sheet, polyethylene-based resin extruded foam sheet, and plate interleaf sheet using the same for glass sheets

Provided is a method for producing a polyethylene-based resin extruded foam sheet by extruding and foaming a foamable molten resin composition formed by kneading a mixture containing a low-density polyethylene, a physical blowing agent, and an antistatic agent, wherein the foam sheet has a thickness in a range of from 0.05 to 0.5 mm, and the antistatic agent is a polymeric antistatic agent having a melting point whose different from the melting point of the low-density polyethylene is in a range of from −10 to +10° C., and having a melt flow rate of 10 g/10 min or more. This method enables a novel polyethylene-based resin extruded foam sheet to be obtained that is of high quality such that formation of a small hole or a through-hole has been reduced or eliminated, and has both excellent strength and a shock-absorbing property despite a very small thickness even in medium- or long-term continuous production, and besides, exhibits a sufficient antistatic property, thus suitable as a glass plate interleaf sheet.

Equipment and method of making substrate of plastic flooring

Equipment of making a substrate of plastic flooring contains: an extrusion unit, a thickness regulating unit, and a rolling apparatus. The extrusion unit includes an outlet, and the thickness regulating unit including an inlet, a channel, and a cooler. The rolling apparatus includes a first roller, a second roller, and a press roller. The press roller at least includes a contacting roller and a pressing roller, wherein the contacting roller is configured to roll a foaming sheet, a printing layer, and an abrasion resistant layer. Furthermore, a heating unit heats the foaming sheet, the printing layer, and the abrasion resistant layer so that the foaming sheet, the printing layer, and the abrasion resistant layer are connected by using the pressing roller.

Filament for fused deposit modeling

An apparatus for forming an object by an additive process, commonly referred to as 3-D printing, is provided. The apparatus includes a filament comprising a series of irregularities along the length of the filament, a nozzle depositing a layer of melted material onto a surface and a feeder feeding the filament to the nozzle. A heating element melts the filament and a controller controls the position of the nozzle in a plane to control the configuration of the layer of melted material deposited by the nozzle. Additionally, a method for forming polymer filament used in 3-D printing devices is also provided. The method includes the steps of melting a polymer, selecting an extrusion characteristic calculated to induce a polymer flow instability and extruding the melted polymer using the selected extrusion characteristic to produce an extrusion having distortions created by the polymer flow instability.

METHOD FOR CONTROLLING THE THICKNESS OF A CONTINUOUS ELONGATED ELEMENT MADE OF ELASTOMERIC MATERIAL IN A PROCESS FOR BUILDING TYRES

A method for controlling the thickness of a continuous elongated element made of elastomeric material, applied according to coils wound on a forming support, includes: advancing a head end of the continuous elongated element toward the forming support; subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; and subjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during the application on the forming support. During the first stretching, a span of the continuous elongated element adjacent to the head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient, in a manner so as to confer, also to the span adjacent to the head end, a stretch and a section similar or substantially equivalent to those of the rest of the continuous elongated element. 1. (canceled)2. An apparatus for building a tyre for vehicle wheels , comprising:a forming support;an extruder for dispensing a continuous elongated element made of elastomeric material;a conveyor arranged between the extruder and the forming support, wherein the conveyor comprises two opposite conveyor belts having respective conveyor branches arranged face to face and adapted to advance, in contact therewith, the continuous elongated element from the extruder toward the forming support, wherein an output opening of the extruder opens between mutually converging input portions of the respective conveyor branches of the two opposite conveyor belts;a first conveyor belt of the two opposite conveyor belts being mounted on a frame configured for movement by an actuator, wherein movement of the first conveyor belt toward and away from a second conveyor belt of the two opposite conveyor belts varies a mutual compression force between the two opposite conveyor belts during advancing of the continuous elongated ...

AUTOMATIC PROCESS CONTROL OF ADDITIVE MANUFACTURING DEVICE

Automatic process control of additive manufacturing. The system includes an additive manufacturing device for making an object and a local network computer controlling the device. At least one camera is provided with a view of a manufacturing volume of the device to generate network accessible images of the object. The computer is programmed to stop the manufacturing process when the object is defective based on the images of the object. 1. System for automated process control of an additive manufacturing device comprising:an additive manufacturing device for making an object;a local networked computer controlling the device;at least one camera with a view of a manufacturing volume of the device to generate network accessible images of the object;wherein the computer is programmed to stop the manufacturing process when the object is defective based on the images of the object.2. The system of wherein the at least one camera has a fixed view of the manufacturing volume.3. The system of wherein the at least one camera has a robotically controlled view of the manufacturing volume.4. The system of wherein the images are video streams.5. The system of wherein the images are static.6. The system of wherein the additive manufacturing device is a 3-D printer.7. The system of wherein the computer further includes a series of server-side applications executing remote algorithms.8. The system of further including a web-browser based control interface.9. The system of wherein the algorithm includes machine learning algorithms.10. The system of wherein the manufacturing volume includes a calibration pattern thereon.11. The system of wherein the machine learning algorithms include markov claim 9 , bayesian inference or artificial neural network algorithms.12. The system of further including 3-D print preview to update object rendering in real time.13. The system of further including an array of lights for creating object shadows for reconstructing a profile view from the point of ...

Selective Laser Sintered Fused Deposition Printing with Cooling

A method of additive manufacturing of an object may include directing laser energy from a laser to a region for material deposition, extruding material using an extruder at the region of material deposition, sensing temperature within the region of the material deposition, and electronically controlling the laser energy using the temperature so as to sufficiently heat the region for material deposition prior to extruding the material to increase strength of the object. The method may include hardening or freezing extruded material through cooling in real-time. 1. A method of additive manufacturing of an object comprising:directing laser energy from a laser to a region for material deposition;extruding material using an extruder at the region of material deposition;sensing temperature within the region of the material deposition;electronically controlling the laser energy using the temperature so as to sufficiently heat the region for material deposition prior to extruding the material to increase strength of the object; andactively cooling the material.2. The method of wherein the laser comprises a laser diode.3. The method of wherein the strength of the object is increased by reducing susceptibility of delamination of layers of the object.4. The method of wherein the laser energy is pulsed laser energy.5. The method of wherein the laser energy is continuous wave laser energy.6. The method of wherein the laser energy textures the region for material deposition.7. The method of further comprising removing deposited material at the region for material deposition using the laser energy from the laser.8. The method of wherein the sensing the temperature is performed using a bolometer.9. The method of wherein the sensing the temperature is performed using a bolometer.10. The method of wherein the sensing the temperature is performed using thermal imaging detector.11. The method of wherein the sensing the temperature is performed using a fiber detector.12. The method of ...

FLOW LIMITING AND VARIABLE FREQUENCY DRIVE APPARATUS FOR LIMITING FLOW TO SELECTED LEVEL

A controlled, variable speed vacuum pump with a flow limiter connected to the suction head of the vacuum pump conveys granular plastic resin material from a supply to receivers retaining and dispensing resin when needed by a process machine. 1. Apparatus for conveying granular plastic resin material from a resin supply preparatory to molding or extruding that material into finished or semi-finished plastic parts , comprising:a. at least one receiver for receipt and temporary storage of the granular plastic resin material preparatory to the molding or extrusion;b. a vacuum pump;c. a first conduit for conveyance of the granular plastic resin material from the supply to the receiver;d. a second conduit for conveyance of a vacuum/air stream from the receiver to the vacuum pump;e. a variable speed drive for the vacuum pump.2. Apparatus of further comprising a microprocessor for controlling speed of the drive for the vacuum pump.3. Apparatus of further comprising a sensor for sensing at least one flow parameter in the second conduit claim 2 , connected to the microprocessor for furnishing flow parameter information thereto.4. Apparatus of further comprising a plurality of flow parameter sensors for sensing flow parameters at selected positions in the second conduit and furnishing flow parameter information therefrom to the microprocessor.5. Apparatus of wherein the microprocessor controls speed of the drive according to an algorithm stored within the microprocessor claim 2 , the algorithm receiving as input sensed flow parameter information.6. Apparatus of further comprising an air flow limiter between an outlet of the second conduit and a suction inlet of the vacuum pump.7. Apparatus of further comprising an air flow limiter between an outlet of the second conduit and a suction inlet of the vacuum pump.8. Apparatus of further comprising a flow parameter sensor between the air flow limiter and the suction inlet to the pump.9. Apparatus of further comprising a second flow ...

Reactive twin-screw extrusion valve

A system for the production of carbonized biomass that includes an infeed for accepting biomass feed material and an associated twin screw extruder. A water heater is connected with respect to at least one inlet along a length of the twin screw extruder and a pressure sustaining valve is connected at an outlet of the twin screw extruder.

METHOD FOR PLACING A SELF-SEALING PRODUCT ON THE INNER SURFACE OF A TIRE

The process includes a non-crosslinked self-sealing composition which is introduced into an extrusion means, the geometric and thermodynamic characteristics of which have been specially adapted. The speed and temperature conditions of the extrusion means are adjusted so that, at an application nozzle forming the outlet die of the extrusion means, the self-sealing composition is crosslinked. The application nozzle is brought close to the internal surface of the casing previously set in relative motion with respect to the application nozzle, and an extruded and crosslinked bead that has a given width and profile is deposited directly on the internal surface of the casing. 1. A method of applying a rubber-based self-sealing composition on the inner surface of a tire casing which adopts its customary shape under the effect of an internal air pressure , comprising the steps of:introducing a non-crosslinked self-sealing composition into an extrusion means, the geometric and thermodynamic characteristics of which have been specially adapted,adjusting the speed and temperature conditions of the extrusion means so that, at an application nozzle forming the outlet die of said extrusion means, the self-sealing composition is crosslinked, andbringing the application nozzle close to the internal surface of said casing previously set in relative motion with respect to the application nozzle, and depositing an extruded and crosslinked bead having a given width and profile directly on said internal surface of the casing.2. The method according to claim 1 , in which the value of the G″/G′ (Tg δ) ratio of the self-sealing composition decreases by a value greater than 0.1 when it changes from the non-crosslinked state to the crosslinked state.3. The method according to claim 2 , in which the value of the G″/G′ (Tg δ) ratio of the non-crosslinked self-sealing composition is between 1.2 and 3.4. The method according to claim 2 , in which the value of the G″/G′ (Tg δ) ratio of the ...

MATERIAL PROCESSING UNIT CONTROLLED BY ROTATION

An interchangeable unit adapted to couple to a computer numerical control (“CNC”) machine is disclosed comprising a holder that couples to a spindle of the CNC machine, a controller, wherein said controller is configured to receive the rotational speed of the spindle as an input, and a material processing unit, wherein said material processing unit executes a first function in response to a first rotational speed range of the spindle and executes a second function in response to a second rotational speed range of the spindle. 1. An interchangeable unit adapted to couple to a computer numerical control (“CNC”) machine comprising:a holder that couples to a spindle of the CNC machine;a controller, wherein said controller is configured to receive the rotational speed of the spindle as an input; andan extruder, wherein said extruder executes a first function in response to a first rotational speed range of the spindle and executes a second function in response to a second rotational speed range of the spindle.2. The interchangeable unit according to claim 1 , further comprising a filament source adapted to provide filament to the extruder.3. The interchangeable unit according to claim 1 , wherein the extruder includes one or more units selected from the group consisting of: additive manufacture units claim 1 , material curing units claim 1 , material heating units claim 1 , and material cooling units.4. The interchangeable unit according to claim 1 , further including a generator claim 1 , wherein rotation of the spindle causes the generator to produce power for the extruder.5. The interchangeable unit according to claim 1 , wherein the first function and second function are selected from the group consisting of: system reset claim 1 , lower calibration claim 1 , turn off heat claim 1 , cool down claim 1 , standby claim 1 , reprogram settings claim 1 , stay heated claim 1 , change filament claim 1 , change mix ratio of components claim 1 , middle calibration claim 1 , ...

EXTRUSION MOLDED ARTICLE, METHOD FOR PRODUCING SAME, MOLDING RAW MATERIAL FOR EXTRUSION MOLDING, AND METHOD FOR PRODUCING SAME

A method for producing an extrusion molded article, comprising a step of extruding a molding raw material to obtain an extrusion molded article, wherein the molding raw material is a mixture of a first liquid material including liquid silicone rubber, and a crosslinked particle obtained by dynamically crosslinking a second liquid material including liquid silicone rubber, the viscosity at 23° C. of the first liquid material is less than 600 Pa·s, and the viscosity at 23° C. of the molding raw material is 600 Pa·s or more. 1. A method for producing an extrusion molded article , comprising:a step of extruding a molding raw material to obtain an extrusion molded article; whereinthe molding raw material is a mixture of a first liquid material including liquid silicone rubber, and a crosslinked particle obtained by dynamically crosslinking a second liquid material including liquid silicone rubber,a viscosity at 23° C. of the first liquid material is less than 600 Pa·s, anda viscosity at 23° C. of the molding raw material is 600 Pa·s or more.2. A method for producing an extrusion molded article , comprising:a step of extruding a molding raw material to obtain an extrusion molded article; whereinthe molding raw material is a mixture of a first liquid material including a urethane raw material, and a crosslinked particle obtained by dynamically crosslinking a second liquid material including a urethane raw material,a viscosity at 23° C. of the first liquid material is less than 600 Pa·s, anda viscosity at 23° C. of the molding raw material is 600 Pa·s or more.3. A molding raw material for extrusion , the molding raw material being a mixture of:a first liquid material including liquid silicone rubber and having a viscosity at 23° C. of less than 600 Pa·s; anda crosslinked particle obtained by dynamically crosslinking a second liquid material including liquid silicone rubber,the molding raw material having a viscosity at 23° C. of 600 Pa·s or more.4. A molding raw material ...

Method for the Step-By-Step Guidance of a Machine Operator of an Extrusion Device when Changing from an Application Formula to a Subsequent Formula

The present invention relates to a method for the step-by-step guidance of a machine operator of an extrusion device for a film machine when changing from an application formula to a subsequent formula, comprising the following steps: 1. A method for the step-by-step guidance of a machine operator of an extrusion device for a film machine when changing from an application formula to a subsequent formula , comprising the following steps:identifying a formula change request,displaying the formula change request for the machine operator,displaying at least one concluding step to be performed for the application formula,identifying a confirmation of the machine operator for the at least one concluding step,displaying at least one preparatory step to be performed for the subsequent formula,identifying a confirmation of the machine operator for the at least one preparatory step,concluding the change from the application formula to the subsequent formula.2. The method according to claim 1 ,wherein at least one automatic step is performed as part of the change from the application formula to the subsequent formula, after identifying a confirmation of the machine operator.3. The method according to claim 1 ,wherein feedstock of the application formula is changed to a subsequent material of the subsequent formula when changing from the application formula to the subsequent formula.4. The method according to claim 3 ,wherein the order of the processing of the change of the individual materials is specified as change strategy.5. The method according to claim 4 , stability of the extrusion product,', 'temperature profile of at least an extruder or of an extrusion head,', 'rinsing period of the respective material, and, 'wherein the change strategy considers at least one of the following change parametersmaterial costs of the respective material.6. The method according to claim 1 , application formula,', 'application parameters of the extrusion device,', 'subsequent formula,', ' ...

FEEDBLOCK FOR MANUFACTURING MULTILAYER POLYMERIC FILMS

A feedblock including a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of layers including at least four first individual polymeric layers; and a second packet creator that forms a second packet including a second plurality of polymeric layers, the second plurality of layers including at least four second individual polymeric layers, wherein the first and second packet creators are configured such that, for each packet creator, respective individual polymeric layers of the plurality of polymeric layers are formed at approximately the same time. The feedblock may include a packet combiner that receives and combines the first and second primary packets to form a multilayer stream. In some examples, at least one of the first and second primary packets may be spread in the cross-web direction prior to being combined with one another. 1. A feedblock comprising:a first packet creator that forms a first packet including a first plurality of polymeric layers, the first plurality of polymeric layers including at least four first individual polymeric layers;a second packet creator that forms a second packet including a second plurality of polymeric layers, the second packet creator separate and distinct from the first packet creator, the second plurality of polymeric layers including at least four second individual polymeric layers, wherein the first packet creator is configured such that the first individual polymeric layers are formed at approximately the same time as one another, and the second packet creator is configured such that the second individual polymeric layers are formed at approximately the same time as one another; andmeans for combining the first packet and the second packet to form a multilayer flow stream including the first plurality of polymeric layers and the second plurality of polymeric layers,wherein the feedblock is configured such that for each primary packet generated in the ...

System, Method and Apparatus For Producing a Multi-Layer, Annular Microcapillary Product

The instant disclosure provides a die assembly for producing an annular microcapillary product. The die assembly is operatively connectable to an extruder having a thermoplastic material passing therethrough. The die assembly includes a shell, an inner manifold, an outer manifold, and a die assembly. The inner and outer manifolds are positionable in the shell with matrix flow channels thereabout to receive the thermoplastic material therethrough such that matrix layers of the thermoplastic material are extrudable therefrom. The die insert is disposable between the inner and the outer manifolds, and has a distribution manifold with a tip at an end thereof defining microcapillary channels to pass a microcapillary material therethrough whereby microcapillaries are formed between the matrix layers.

COEXTRUSION APPARATUS, SINGLE-LAYER EXTRUSION APPARATUS AND RETROFIT KIT AS WELL AS A METHOD FOR MEASURING A LAYER THICKNESS, FOR PRODUCING A PLASTIC FILM, AND FOR RETROFITTING AN EXTRUSION APPARATUS

A coextrusion apparatus, a single-layer extrusion apparatus, a retrofit kit, as well as to a method for measuring a layer thickness, for producing a plastic film, and for retrofitting an extrusion apparatus. From the state of the art, it is known to add a detection agent in the form of a fluorescent granulate into the starting material at the extruder, in order to be able to measure the layer thickness of the layer in the film composite produced from this starting material. However, it is proposed to feed in a detection agent only beyond the extruder. This leads to a clearly shorter running time of the detection agent through the system and thereby to clearly faster measurability of changes in the production parameters. 1. A coextrusion apparatus for producing a plastic film composite having multiple layers , each layer having a layer thickness , the apparatus comprising:a first extruder configured for plasticizing a first starting material;a second extruder for plasticizing a second starting material;a coextrusion block;a feed from the extruders to the coextrusion block;a detection agent addition device for adding a detection agent into one of the layers; anda detection device disposed in the coextrusion block and/or beyond the coextrusion block, and beyond the extruders, in a machine direction, and being configured for undertaking a measurement of a layer thickness using the detection agent.2. The coextrusion apparatus according to claim 1 , wherein the feed from the second extruder to the coextrusion block has a division that is set up for dividing melt that comes from the second extruder into two separate channels claim 1 , to produce two layers composed of the second starting material.3. The coextrusion apparatus according to claim 2 , wherein the detection agent addition device is disposed on one of the separate channels claim 2 , and is configured for adding the detection agent into the feed to precisely one layer.4. The coextrusion apparatus according to ...

METHOD FOR CHANGING THE MATERIAL IN AN EXTRUSION DEVICE

The present invention relates to a method for changing material in an extrusion device comprising at least two supply devices for supplying feedstock for an extruder, comprising the following steps: 1. A method for changing material in an extrusion device comprising at least two supply devices for supplying feedstock for an extruder , comprising the following steps:identifying a change request for changing material in an extrusion device,predetermining a production stability for a time after the material of at least one supply device has been changed,comparing the predetermined production stabilit to a threshold value of stability,changing the material in at least one supply device depending on the result of comparison.2. The method according to claim 1 , wherein for the step of predetermining the production stability claim 1 , the impact on the production stability for the feedstock and a subsequent material are read out from a database.3. The method according to claim 1 , wherein for the step of predetermining the production stability claim 1 , the correlation of the supply device to a corresponding layer of the film claim 1 , which is to be produced claim 1 , is considered.4. The method according to claim 1 , wherein the production stability for a multi-layer film is simulated supply device.5. The method according to claim 1 , wherein the steps of predetermining and of comparing are carried out for all supply devices claim 1 , and an order of the supply devices for changing the material is subsequently provided.6. The method according to claim 1 , wherein the step of changing the material is carried out as long as at least one of at least one stable or stabilizing layer of a film results in the predetermination of a production stability above the threshold value of stability.7. The method according to claim 1 , wherein the actual production stability is monitored and recorded at least while or after changing the material in at least one supply device.8. The ...

METHOD FOR CONTROLLING THE THICKNESS OF A CONTINUOUS ELONGATED ELEMENT MADE OF ELASTOMERIC MATERIAL IN A PROCESS FOR BUILDING TYRES

A method for controlling the thickness of a continuous elongated element made of elastomeric material, applied according to coils wound on a forming support, includes: advancing a head end of the continuous elongated element toward the forming support; subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; and subjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during the application on the forming support. During the first stretching, a span of the continuous elongated element adjacent to the head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient, in a manner so as to confer, also to the span adjacent to the head end, a stretch and a section similar or substantially equivalent to those of the rest of the continuous elongated element. 1. (canceled)2. A method for controlling thickness of a continuous elongated element made of elastomeric material applied according to coils wound on a forming support , comprising:advancing a head end of the continuous elongated element toward the forming support;subjecting, during the advancement, the continuous elongated element to a first stretching with a first stretch coefficient before applying on the forming support; andsubjecting, during the advancement, the continuous elongated element to a second stretching with a second stretch coefficient during application on the forming support,wherein, during the first stretching, a span of the continuous elongated element adjacent to a head end is stretched with a supplementary stretch coefficient greater than the first stretch coefficient.3. The method according to claim 2 , wherein the supplementary stretch coefficient is equal to a product of the first stretch coefficient and the second stretch coefficient.4. The method according to claim 2 , wherein ...

AIR FLOW REGULATOR AND METHOD

Method and apparatus for air flow regulation comprise a vertically oriented conduit, a sail assembly positioned in the conduit and moveable therewithin responsively to air flow through the conduit to regulate rate of air flow through the conduit and to stop air flow through the conduit upon air flow rate through the conduit exceeding a preselected value with a detector for sensing when the sail assembly has stopped air flow thought the conduit as a result of air flow rate exceeding said pre-selected value. 1. An air flow regulator comprising:a) a conduit;b) a sail assembly positioned in the conduit and movable therewithin responsively to air flow through the conduit to regulate air flow through the conduit.2. The regulator of further comprising:a) a detector for sensing when air flow through the conduit has stopped as a result of air flow rate exceeding said pre-selected value.3. A method for regulating air flow claim 1 , comprising:a) providing a conduit;b) positioning a movable sail assembly including a sail within the conduit;c) positioning a stop within the conduit;d) permitting the sail assembly to move responsively to air flow through the conduit between a position at which air flows around the sail assembly and through the conduit and a position at which the sail assembly contacts a stop and blocks air flow through the conduit; ande) detecting when the sail assembly contacts the stop to block air flow.4. The method of further comprising providing an electromagnetic beam for detection of when the sail assembly contacts the stop.5. The method of wherein the electromagnetic beam is a visible light beam.6. The method of wherein the electromagnetic beam is an infrared beam.7. The method of further comprising permitting the sail to tilt relative to the remainder of the sail assembly respecting the axis of the conduit.8. The method of further comprising providing a sail which is triangular.9. The method of further comprising providing a telescoping cylindrical ...

DEVICE AND METHOD FOR MONITORING MATERIAL PROPERTIES OF PLASTICS

The invention relates to a device and a method for inline quality checking for plastics during the production process, comprising at least two different measuring devices, wherein the device has a unit for sampling plastic melt from the production extruder, a unit for moulding a flat film from this plastic melt, and units for transporting the flat film to the measuring devices and for finishing the flat film. 1. Device for in-line quality checking for plastics during the production process , comprising at least two different measuring devices selected from the group of measuring devices for determining the rheological properties , measuring devices for colour measurement , measuring devices for detecting inclusions and gel particles and the like , measuring devices for judging the optical properties , and measuring devices for determining the mechanical parameters , studying the olfactory parameters , wherein the device has a unit for sampling plastic melt from the production extruder , a unit for moulding a flat film from this plastic melt , and units for transporting the flat film to the measuring devices and for finishing the flat film.2. Device according to claim 1 , wherein the device is coupled via an adapter to a side strand of the extruder and the sampling of the plastic melt occurs after opening of a valve.3. Device according to claim 1 , wherein the sampling of the plastic melt is performed through a borehole into the cylinder housing of the output region of the extruder.4. Device according to claim 1 , wherein the sampling of the plastic melt is performed by a displacement body claim 1 , which is positioned in the melt flow and around which the melt is conducted to a borehole in the cylinder housing of the extruder.5. Device according to claim 1 , wherein the device has a sheet die and a casting roller for moulding a flat film.6. Device according to claim 1 , wherein the device comprises two roller pairs for stretching the flat film.7. Device according to ...

Molded article having excellent fuel barrier properties

The molded article includes a resin composition with a single shaft extruder, in which the resin composition is generated by melting and mixing a raw mixture, the raw mixture being obtained by blending 40-90 parts by mass of the polyolefin (A), 3-30 parts by mass of the metaxylylene group-containing polyamide (B), and 3-50 parts by mass of the modified polyolefin (C). In the single shaft extruder, the ratio of the length of the feeding part to the screw effective length is 0.40-0.55, the ratio of the length of the compressing part to the screw effective length is 0.10-0.30, the ratio of the length of the measuring part to the screw effective length is 0.10-0.40, the upper limit of the temperature of the feeding part falls within the range of +20° C. from the melting point of the metaxylylene group-containing polyamide or less, and the temperatures of the compressing part and the measuring part fall within the range of −30° C. to +20° C. from the melting point of the metaxylylene group-containing polyamide, and the shear rate is 14/second or more.

ROD MEMBER EXTRUSION-MOLDING SYSTEM AND EXTRUSION-MOLDING METHOD THEREFOR

A system for executing a rod member extrusion-molding method of the present invention has an extrusion-molding machine of a rod member, a transfer conveyor, a delivery line of the rod member between the extrusion-molding machine and the transfer conveyor, a measurement position defined on the delivery line and dividing the delivery line into an upstream section and a downstream section, a measurement device measuring an outer diameter of the rod member in the measurement position, a first roller conveyor forming a part of the section at least directly upstream of the measurement position, a second roller conveyor forming the downstream section, and a control device performing feedback control of a transfer speed of the transfer conveyor based on the outer diameter obtained in the measurement device. 1. A rod member extrusion-molding system , comprising:an extrusion-molding machine extruding a rod member;a delivery line receiving the extruded rod member;a transfer conveyor receiving the rod member from the delivery line, and transferring the received rod member;a measurement device measuring an outer diameter of the rod member when the rod member passes through a measurement position defined on the delivery line, and outputting a measurement result; anda control device performing feedback control for a transfer speed of the rod member by the transfer conveyor, based on the measurement result of the measurement device,wherein supposing that the delivery line is divided into an upstream section at the extrusion-molding machine side and a downstream section at the transfer conveyor side with respect to the measurement position, the delivery line includesa first roller conveyor forming a part of the upstream section at least directly upstream of the measurement device, and guiding delivery of the rod member, anda second roller conveyor forming the downstream section, and guiding the delivery of the rod member.2. The rod member extrusion-molding system according to claim ...

SUSTAINABLE COMPOSITIONS, RELATED METHODS, AND MEMBERS FORMED THEREFROM

Members including components of windows and doors are formed by a method that includes obtaining a biopolymer and a filler, feeding them into an extruder, controlling at least the temperature of the biopolymer and the filler within the extruder to promote the initiation of nucleation of the biopolymer, extruding the composite through a die of the extruder to form an extruded member and controlling at least the cooling rate of the extruded member after it leaves the die to promote crystallization of the biopolymer. Methods are disclosed for compounding and pelletizing as well as direct extrusion of the composite. In a preferred embodiment, the biopolymer is polylactic acid (PLA) and the filler is wood fiber. In addition, neat PLA formulations are also disclosed. Further, the heat distortion temperature and the hydrolysis resistance of these members are greatly increased through specific processing conditions and the addition of strategic quantities of additives. 1. A method of forming a member comprising the steps of:(a) obtaining a biopolymer and a filler;(b) feeding the biopolymer and the filler to an extruder;(c) controlling at least the temperature of the biopolymer and the filler within the extruder to promote the initiation of nucleation of the biopolymer;(d) forcing the biopolymer and the filler through a die of the extruder to form an extruded member; and(e) controlling at least the cooling rate of the extruded member after it leaves the die to promote crystallization of the biopolymer.2. A method of forming a member as claimed in and wherein the step (b) includes the mixing together of the biopolymer and the filler within the extruder to form the composite.3. A method of forming a member as claimed in and further comprising the step following step (a) of compounding the biopolymer and the filler to form a composite having a predetermined weight percent biopolymer and a predetermined weight percent filler and wherein step (b) comprises feeding the compounded ...

RHEOLOGICAL MEASUREMENT SYSTEM

Rheological measurement systems for use with systems including pressurized polymer melts and/or other viscous materials are described. In one embodiment, a rheometer is connected to an associated system with a bent, curved, or bendable tube to permit the rheometer to measure rheological properties in locations where the rheometer could not otherwise be located due to the presence of obstructions. Embodiments including rigid straight tubes for connecting a rheometer to an associated system are also described. In another embodiment, a flow-through rheometer is connected to an industry standard ½-20 thermowell aperture that is typically used for attaching temperature and pressure probes to a vessel containing a viscous material such as an extruder or injection molding system. 1. A rheological measurement system comprising:a flow through rheometer including an inlet and an outlet;a tube connected to the inlet of the rheometer;a thermowell connection adapter attached to the tube, wherein the thermowell connection adapter is constructed and arranged to be attached to an aperture located along a flow path of a viscous material in an extruder or injection molding system, and wherein an open end of the thermowell connection adapter is in fluid communication with the inlet of the flow through rheometer through the tube.2. The rheological measurement system of claim 1 , wherein the tube includes one or more bends or curves along a length of the tube.3. The rheological measurement system of claim 1 , wherein the tube is continuously operable to transfer a pressurized viscous material to the flow through rheometer at temperatures greater than 250° C.4. The rheological measurement system of claim 1 , wherein the thermowell connection adapter is connectable to the aperture while maintaining the tube rotationally stationary relative to the aperture.5. The rheological measurement system of claim 1 , wherein the thermowell connection adapter is connectable to the tube while ...

Method and system for making a plastic film

A plastic film of a thermoplastic synthetic resin is made in a film-making system by extrusion from a die of an extruder. First the plastic is melted and extruded from the die as a tube or web that is, typically after cooling and stretching, formed into a package. At least one reference parameter is provided, and, during continuous operation of the system, two input parameters different from the reference parameter are measured by respective measuring devices An output is determined from these reference parameters and is compared with the reference parameter.

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the flakes through a PET crystallizer; (E) passing the group of flakes through an MRS extruder while maintaining the pressure within the MRS portion of the MRS extruder below about 18 millibars; (F) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (G) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes of recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the first plurality of flakes, passing the plurality of flakes of recycled PET through the PET crystallizer to at least partially dry the plurality of flakes of recycled PET;(D) at least partially melting the plurality of flakes into a polymer melt; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;', 'a first single-screw extruder section comprising a first single extruder screw for melting the plurality of flakes of recycled PET to form a polymer melt and feeding the polymer melt into the MRS section;', 'a second single-screw extruder section comprising a second single extruder screw for transporting the polymer ...

PROCESS AND APPARATUS FOR BORDERING A CORRUGATED PLASTIC PANEL AND PANEL THUS OBTAINED

The present invention is related to a process for bordering a corrugated plastic panel and to a panel obtained through that process. In particular, the invention is related to a process for making a corrugated plastic panel comprising a bordering made in-line or out-line in order to close the openings outwards. The invention is also related to an apparatus for bordering according to that process. The panel is sealed and shock resistant thanks to the laying of thermoplastic elastomeric material. 1. Process for bordering a corrugated plastic panel , comprising the following steps in succession:a) providing a corrugated plastic panel having at least one perimetric open border;b) heating a thermoplastic elastomeric material till its fusion point;c) heating at least a portion of said border;d) extruding said fused thermoplastic elastomeric material;e) laying said fused material along all the perimetric border of said panel in order to fill at least partially the corrugations of the panel to seal them towards the exterior,wherein the laying step is carried out with an angle less than 45° with respect to the tangent to the point of the laying.2. Process according to claim 1 , wherein step b) consists in fusing a thermoplastic elastomeric (TPE) material.3. Process according to claim 2 , wherein said thermoplastic elastomeric material is selected among compound of polyolefin claim 2 , thermoplastic elastomers of styrene origin or of polyolefin origin.4. Process according to claim 3 , wherein said thermoplastic elastomeric material is an open-cell foamed material or closed-cell foamed material.5. Process according to claim 1 , wherein said step e) of laying of the extruded material is carried out with an inclination of 4°-45° with respect to the tangent to the laying point claim 1 , and the exit pressure of the material is comprised between 20 bar and 140 bar.6. Process according to claim 1 , comprising a step of blocking of the fluid material flow in correspondence of the ...

CONSTANT PRESSURE FILAMENT DRIVER FOR EXTRUDER HEADS IN THREE-DIMENSIONAL OBJECT PRINTERS

An additive manufacturing system includes a slip clutch coupled to an actuator of a mechanical driver that feeds solid extrusion material into a heater for supplying thermoplastic material to a manifold in an extruder head. A speed of the actuator can be set to enable the actuator to operate at a rotational speed that is slightly greater than the rotational speed of the mechanical mover. This configuration enables the pressure of the thermoplastic material in the manifold of the extruder head to be in a predetermined range no matter how many nozzles are opened in the extruder head. 1. An apparatus comprising:an extruder head having a manifold configured to store thermoplastic material and at least one nozzle through which thermoplastic material from the manifold can be emitted;a heater having a channel through which extrusion material can pass and at least one heating element configured to thermally treat the extrusion material in the channel to melt the extrusion material to form thermoplastic material, the channel in the heater being fluidly connected to the manifold in the extruder head to enable the thermoplastic material to enter the manifold;an actuator having an output shaft;a mechanical mover operatively connected to the output shaft of the actuator to enable the actuator to operate the mechanical mover, the mechanical mover being positioned to apply a force to the extrusion material to move the extrusion material from a supply of extrusion material to the channel in the heater when the actuator operates the mechanical mover; anda slip clutch operatively connected to the output shaft of the actuator to limit a force exerted by the mechanical mover to the extrusion material.2. The apparatus of wherein a speed for the actuator is set to enable the output shaft of the actuator to rotate at a rate greater than the rate at which the mechanical mover rotates.3. The apparatus of further comprising:a sensor configured to generate a signal indicative of the rate at ...

METHOD OF OPERATING EXTRUDER HEADS IN THREE-DIMENSIONAL OBJECT PRINTERS

An apparatus changes the temperature of thermoplastic material in an extruder head to reduce the time for producing an object. The apparatus includes a cooling device located near the one or more nozzles of the extruder head to change the temperature of the thermoplastic material extruded by the extruder head. The apparatus cools the thermoplastic material to enhance the formation of exterior object features. A heater can also be positioned near the nozzle zone to heat the thermoplastic material to reduce the time for raising the viscosity of the thermoplastic material for forming interior regions of the object. 1. An apparatus comprising:an extruder head having a manifold configured to store thermoplastic material and at least one nozzle through which thermoplastic material from the manifold can be extruded;a mechanical mover configured to move extrusion material from a supply of extrusion material along a path;a heater having a heating element and a channel positioned along the path of the extrusion material to receive the extrusion material, the heater being configured to melt the extrusion material in the channel to form thermoplastic material and direct the thermoplastic material into the manifold of the extruder head; anda cooling device positioned near the at least one nozzle to cool the thermoplastic material in the at least one nozzle to a temperature different than a temperature of the thermoplastic material in the manifold of the extruder head.2. The apparatus of further comprising:a sensor positioned near the at least one nozzle, the sensor being configured to generate a signal indicative of a temperature of the thermoplastic material in the at least one nozzle; anda controller operatively connected to the sensor and the cooling device near the at least one nozzle, the controller being configured to operate the cooling device with reference to the signal generated by the sensor.3. The apparatus of claim 1 , the controller being further configured to ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT FROM COLORED RECYCLED PET

A method of manufacturing bulked continuous carpet filament that includes providing a polymer melt and separating the polymer melt from the extruder into at least eight streams. The multiple streams are exposed to a chamber pressure within a chamber that is below approximately 5 millibars. The streams are recombined into a single polymer stream and formed into bulked continuous carpet filament. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:providing a polymer melt from an extruder to a chamber;separating the polymer melt from the extruder into at least eight streams within the chamber, each stream at least partially exposed to the chamber encompassing the at least eight streams such that a surface area of each of the at least eight streams is exposed to a chamber pressure within the chamber;{'b': '5', 'reducing a pressure within the chamber to reach the chamber pressure below about millibars corresponding to a desired moisture level or intrinsic viscosity associated with a single polymer stream comprising the at least eight streams of the polymer melt;'}recombining the at least eight streams into the single polymer stream; andforming the single polymer stream into bulked continuous carpet filament.2. The method of claim 1 , wherein separating the polymer melt from the extruder into at least eight streams within the chamber comprises separating the polymer melt from the extruder into at least eight streams within the chamber.3. The method of claim 2 , further comprising:providing a plurality of polymer flakes to the extruder; andadding one or more color concentrates to the plurality of polymer flakes or to the polymer stream.4. The method of claim 3 , further comprising:providing a color sensor configured to determine a color of the single polymer stream; andsubstantially automatically adjusting an amount of the one or more color concentrates added to the plurality of polymer flakes or the single polymer stream based at least ...

SYSTEMS AND METHODS FOR MANUFACTURING BULKED CONTINUOUS FILAMENT

A method of manufacturing bulked continuous carpet filament which, in various embodiments, comprises: (A) grinding recycled PET bottles into a group of flakes; (B) washing the flakes; (C) identifying and removing impurities, including impure flakes, from the group of flakes; (D) passing the group of flakes through an expanded surface area extruder while maintaining a pressure within the expanded surface area extruder below about 25 millibars; (E) passing the resulting polymer melt through at least one filter having a micron rating of less than about 50 microns; and (F) forming the recycled polymer into bulked continuous carpet filament that consists essentially of recycled PET. 1. A method of manufacturing bulked continuous carpet filament , the method comprising:(A) washing a plurality of flakes comprising recycled PET;(B) providing a PET crystallizer;(C) after the step of washing the plurality of flakes comprising recycled PET, passing at least a portion of the plurality of flakes comprising recycled PET through the PET crystallizer to at least partially dry a surface of the plurality of flakes comprising recycled PET; a plurality of satellite screws, each of the plurality of satellite screws being at least partially housed within a respective extruder barrel and mounted to rotate about its respective central axis; and', 'a satellite screw extruder support system that is adapted to orbitally rotate each of the plurality of satellite screws about a main axis as each of the plurality of satellite screws rotate about its respective central axis, the main axis being substantially parallel to each respective central axis;, '(D) providing an expanded surface area extruder, wherein the expanded surface area extruder defines an expanded surface area extruder inlet and an expanded surface area extruder outlet and comprises(E) providing a pressure regulation system configured to reduce a pressure within at least a portion of the expanded surface area extruder below about 25 ...

Device and Method for Cooing a Blown Film

The invention relates to a calibration device () for calibrating a blown film (), said device comprising; —a tubular region () with at least one inner wall (), through which region the blown film () can be passed; —a liquid reservoir which provides a liquid and which is situated above the tubular region (); an inlet region, in which the liquid can be introduced into the space between the outer wall of the blown film () and the inner wall () of the tubular region (); and —a scraper device (), situated below the tubular region (), by means of which scraper device at least part of the liquid can be removed from the outer surface. The distance of the liquid-removing regions of the scraper device () from the main axis of the blown film () can be altered. 116-. (canceled)17. A device for cooling a blown film , with a device for applying liquid onto the outer wall of the blown film , wherein the film can be cooled with the liquid , wherein the liquid can be introduced between a tubular region and the blown film , wherein the blown film can be transported in a transport direction (z) , with at least one removal element for removing at least a part of the liquid from the blown film , wherein the removal element surrounds at least parts of the blown film in the circumferential direction , wherein the removal element , viewed in the transport direction (z) is situated behind the tubular region , and the distance which the removal element has from the main axis of the blown film can be altered , wherein the removal element has a circumferential , uninterrupted edge which faces the outer surface of the blown film.18. The device according to claim 17 , wherein the device for applying liquid comprises at least one film guide element with at least one inner wall which is arranged at least partially around the blown film and along which the blown film can be passed.19. The device according to claim 17 , wherein a liquid reservoir is provided above or in the upper region of the film ...

BLOWN-FILM EXTRUSION APPARATUS AND A METHOD FOR MANUFACTURING A BLOWN FILM

A blown-film extrusion apparatus for manufacturing a tubular polymer film comprises an extruder; a solidification ring for solidifying a tubular element produced by the extruder and for forming the film by delivering cooling air on the tubular element at a given cooling height, and a film conveyor for conveying the film upwards. The apparatus also comprises a delivery device for projecting correction air on the tubular element, in order to locally correct the thickness of the film, comprising a distribution chamber; a plurality of air delivery members with delivery channels whose delivery mouths are arranged about said axis of the apparatus for projecting correction air partial streams on respective angular correction positions, between the die and the cooling height; flow control elements between the distribution chamber, and the inlet of respective air delivery members, configured for adjusting the flowrate of the respective correction air stream according to an adjustment signal. According to an aspect of the invention, a plurality of separate radial ducts is provided defining respective delivery channels and spaced apart, at an own end portion, by separation spaces, so that the correction air partial streams, after hitting the tubular element in the respective angular correction positions, can flow away from the tubular element through said separation spaces. According to another aspect of the invention, the distribution chamber is defined by an upper ring and by a lower ring connected to each other by means of tight fixed joints with a first substantially cylindrical wall and with a second substantially cylindrical wall arranged around the first cylindrical wall, wherein possible separate radial ducts of the air delivery members protrude from the first cylindrical wall. 1. A blown-film extrusion apparatus for making a tubular polymer film comprising:an extruder having an extrusion mouth configured for extruding a molten polymer in the form of a tubular element ...

METHOD FOR PROCESSING PRODUCTS IN AN EXTRUDER

The invention relates to the production of PSA in a planetary gear extruder. During filling and after passing a passage on a dispersing ring using a lateral arm extruder, the products are degassed. 119.-. (canceled)20. A method for processing natural rubber and/or comparable non-thermoplastic elastomers which require mastication before they can be blended with other components of a mixture , comprising: [ a central spindle having an external toothing,', 'planetary spindles with external toothing that rotate about the central spindle, and', 'a surrounding housing having an internal toothing,, 'wherein the planetary roller extruder module consists of'}, 'wherein the planetary spindles mesh with both the central spindle toothing and with the internal toothing of the housing, and', 'wherein the toothings are helical toothings, such that individual teeth, in accordance with a pitch of the teeth to the longitudinal axis of the extruder, run like screw threads on toothed surfaces;, 'providing an extrusion unit that is composed of at least one planetary roller extruder module having a longitudinal axis and an upstream feed part,'}kneading a feedstock of natural rubber and/or comparable non-thermoplastic elastomers between the teeth of the planetary roller extruder module andsubjecting the feedstock to deformation in at least one dispersion ringso as to masticate the feedstock until it exhibits a Mooney viscosity of less than 80 in order to allow other components of the mixture to be compounded in; andcooling the feedstock during mastication.21. The method as in claim 20 ,wherein the dispersion ring is arranged between surrounding housings of two planetary roller extruder modules,wherein the two planetary roller extruder modules have a common central spindle andwherein the dispersion ring engages a groove of the common central spindle and leaves an open passage for the feedstock in the groove.23. The method as in claim 20 ,wherein the feedstock is natural rubber andwherein ...

PLASTIC EXTRUSION PROCESS CONTROL METHOD AND PARAMETERS ADJUSTMENT SYSTEM

A plastic extrusion process control method includes: receiving a plurality of historical process data of a plastic extrusion process from a database, in which each of the historical process data includes a plurality of critical parameters and a plurality of quality value; dividing each of the critical parameters into a plurality of levels; grouping the historical process data according to the levels of the critical parameters to obtain a plurality of parameter sets; calculating a quality indicator of each of the parameter sets to build an empirical response surface according to the historical process data corresponding to the parameter sets; and configuring the critical parameters of the plastic extrusion process to an automatic manufacturing system according to the empirical response surface, such that the automatic manufacturing system performs the plastic extrusion process according to the critical parameters. 1. A plastic extrusion process control method , comprising:receiving a plurality of historical process data of a plastic extrusion process from a database, wherein each of the historical process data comprises a plurality of critical parameters and a plurality of quality values;dividing each of the critical parameters into a plurality of levels;grouping the historical process data according to the levels of the critical parameters to obtain a plurality of parameter sets;calculating a quality indicator of each of the parameter sets to build an empirical response surface according to the historical process data corresponding to the parameter sets; andconfiguring the critical parameters of the plastic extrusion process to an automatic manufacturing system according to the empirical response surface, such that the automatic manufacturing system performs the plastic extrusion process according to the critical parameters.2. The plastic extrusion process control method of claim 1 , further comprising:monitoring a state of the plastic extrusion process in real-time ...

BLOWN FILM INSTALLATION, METHOD FOR PRODUCING A BLOWN FILM STRIP AND FILM PRODUCED THEREWITH

In blown film installations, it is known to provide longitudinal stretching of the produced double layer film strip downstream of the draw-off, more precisely downstream of the reversing unit and upstream of the winder. It is also known to stretch the down-drawn film, wherein the film must then be preheated owing to the long cooling path from the draw-off. According to a first feature, the present invention specifies warming the film above the draw-off and then treating it mechanically. The film can thereby be brought with only little energy from a first level of warmth to a temperature level at which it can easily be worked. According to a second feature, the invention specifies providing a tractive force breakdown brake. 1182. A blown film installation () , comprising an annular nozzle for extruding a film tube , a tube formation area for longitudinal and transverse stretching of the film tube , a cooling means for the film tube moving in the machine direction , a collapsing section of the film tube into a double layer film strip and a pair of haul-off rollers beyond the cooling means for hauling off the film tube , wherein a processing roller line () is provided beyond the pair of haul-off rollers () for longitudinally stretching the double layer film strip , wherein the processing roller line has a first stretching roller and a second stretching roller following the first stretching roller ,{'b': '1', 'wherein the pair of haul-off rollers is adapted to be driven at a haul-off roller speed and wherein the second stretching roller is adapted to run at a stretching speed that is higher than the haul-off roller speed and than the speed of the first stretching roller, so that, during operation of the blown film installation (), the double layer film strip is stretched in the machine direction between the first and the second stretching roller,'}whereina tensile force reach through brake impeding a penetration of a tensile force from the second roller to the pair of ...

THREE-DIMENSIONAL FABRICATION WITH CAVITY FILLING

A three-dimensional printer is configured to fill interior cavities of a fabricated object with functional or aesthetic materials during fabrication. In general, a number of layers can be fabricated with an infill pattern that leaves void space within an exterior surface of the object. These void spaces can receive a second material such as an epoxy or adhesive that spans multiple layers of the object to increase structural integrity. Similarly, aesthetic materials may be used to add color, opacity, or other desired properties to a fabricated object. The void spaces can also or instead form molds that are filled with a build material to provide a fabricated object. 120-. (canceled)21. A computer program product comprising computer executable code embodied in a non-transitory computer readable medium that , when executing on a controller of a three-dimensional printer , controls the three-dimensional printer to perform the steps of:fabricating a number of layers of an object with the three-dimensional printer using a first material to print the number of layers including an exterior surface and an infill within the exterior surface, wherein the infill defines a void space;depositing a second material within the void space; andfabricating at least one additional layer above the number of layers to enclose the second material within the void space.22. The computer program product of claim 21 , wherein the first material and the second material are a single type of build material.23. The computer program product of claim 21 , wherein the at least one additional layer is fabricated from the first material.24. The computer program product of claim 21 , wherein the at least one additional layer is fabricated from the second material.25. The computer program product of claim 21 , wherein the void space forms a mold for a three-dimensional object and the second material includes a build material for the three-dimensional object.26. The computer program product of claim 21 , ...

OPTICAL INSPECTION APPARATUS AND METHOD FOR AN EXTRUDER

An apparatus () for optical inspection of a mass of polymeric material () passing through an extruder () having a hollow extrusion cylinder () extending elongately in a longitudinal direction comprises an optical sensor () which can be operatively coupled to the extrusion cylinder () and having an infrared light emitter () and a receiver () configured to measure a measurement parameter representing an optical property of the polymeric material () inside the extrusion cylinder () and is characterized in that it comprises a plurality of the optical sensors () which can be operatively coupled to the extrusion cylinder () in a plurality of measurement sites located in succession and spaced from each other along the longitudinal direction and a processor () programmed to acquire a plurality of measurement signals containing the measurement parameters measured by the corresponding optical sensors () and programmed to process the plurality of measurement signals in order to calculate a corresponding plurality of values of a control parameter indicating a physical state of the polymeric material () as a function of a longitudinal position. 2. The apparatus according to claim 1 , wherein the processor is programmed to acquire the measurement signals for a predetermined measurement time interval and to calculate the control parameter claim 1 , for each measurement site claim 1 , as a function of the measurement parameter curve of the corresponding measurement signal in the measurement time interval.3. The apparatus according to claim 2 , wherein the measurement parameters represent a transmittance and/or a reflectance of the plastic material and wherein the processor is programmed to calculate the control parameter claim 2 , for each measurement site claim 2 , as a function of a frequency of variation of the measurement parameter of the corresponding measurement signal from a high reference interval to a low reference interval.4. The apparatus according to claim 1 , wherein ...

DEVICE FOR ENSHEATHING A CONDUCTOR

A device for ensheathing at least one conductor in a sheath that consists of plastic has an extruder, a first cooling system arranged behind the extruder, a first conveying system behind the first cooling system, and another conveying system for fixing the length of the sheath relative to the conductor. The first conveying system has two units for controlling the conveying speed of the sheath, which can be driven at different conveying speeds. 1221464761321278921. Device for ensheathing at least one conductor () in a sheath () that consists of plastic , with an extruder () , a first cooling system () arranged behind the extruder () , a first conveying system () behind the first cooling system () , and another conveying system () for fixing the length of the sheath () relative to the conductor () , wherein the first conveying system () has two means ( , ) for controlling the conveying speed of the sheath () , which can be driven at different conveying speeds.29125. Device according to claim 1 , wherein at least one means () for controlling the conveying speed is a belt pull-off claim 1 , between whose belts () the sheathed conductor () is conveyed by friction.3810115. Device according to claim 1 , wherein at least one means () for controlling the conveying speed has two disks ( claim 1 , ) claim 1 , between which the sheathed conductor () is conveyed by friction.41118. Device according to claim 3 , wherein at least one of the disks () has a V-shaped groove () on its periphery.5. Device according to claim 4 , wherein a flank angle (α) of the groove lies between 1° and 10°.610. Device according to claim 4 , wherein a disk () has a flat periphery.789. Device according to claim 1 , wherein the distance (A) between the means ( claim 1 , ) can be set to control the conveying speed.88989. Device according to claim 1 , wherein another cooling system is arranged between the means ( claim 1 , ) for controlling the conveying speed or wherein the means ( claim 1 , ) for ...

POSITIVE-DISPLACEMENT PISTON PUMP AND ASSOCIATED DELIVERY CONTROL METHOD

A volumetric pump comprising a product metering chamber , a metering piston mounted inside said chamber so as to slide between top dead center and bottom dead center, a sleeve at least partially delimiting an intake chamber and an exhaust chamber for said product, and a product dispensing means that is mounted so as to be able to move with respect to the sleeve and is able to place the metering chamber alternately into communication with the intake chamber and the exhaust chamber is provided. The pump also comprises a measuring means that is able to measure the pressure of the product inside the metering chamber , and a control unit that is connected to the measuring means and is able to verify the presence of pressure peaks exhibiting a value greater than or equal to a predetermined pressure threshold. 1. A method for controlling the flow rate of a volumetric pump comprising a product metering chamber , a metering piston mounted inside said chamber so as to slide between top dead centre and bottom dead centre , and an intake chamber and an exhaust chamber for said product that are placed alternately in communication with said metering chamber , comprising the steps in which:the pressure of the product inside the metering chamber is measured during at least one pump cycle, andthe presence of a pressure peak having a value greater than or equal to a predetermined pressure threshold is verified during a compression phase of said pump cycle, the metering chamber being closed during said compression phase so as not to be in communication with the intake and exhaust chambers, and the metering piston moving towards top dead centre during said compression phase.2. A method according to claim 1 , wherein the pressure of the product inside the metering chamber is measured during a plurality of successive pump cycles claim 1 , and the presence of pressure peaks is verified during the compression phase of each of said cycles.3. A method according to claim 2 , wherein a warning ...

METHOD AND SYSTEM FOR ALIGNING A TERAHERTZ SENSOR SYSTEM

The present disclosure is directed toward a method for aligning a radiation head of a terahertz sensor system with a target surface. The method includes: scanning a selected area of the target surface with a terahertz radiation beam emitted by the radiation head; sensing a peak amplitude for each reflected radiation signal from a plurality of reflected radiation signals received by the radiation head during the scanning of the selected area; and identifying a normal position of the radiation head with respect to the target surface based on a maximum peak amplitude from among the peak amplitudes of the reflected radiation signals. 1. A method for aligning a radiation head of a terahertz sensor system with a target surface , the method comprising:scanning a selected area of the target surface with a terahertz radiation beam emitted by the radiation head;sensing a peak amplitude for each reflected radiation signal from a plurality of reflected radiation signals received by the radiation head during the scanning of the selected area; andidentifying a normal position of the radiation head with respect to the target surface based on a maximum peak amplitude from among the peak amplitudes of the reflected radiation signals;moving the radiation head to the identified normal position;emitting a subsequent terahertz radiation beam while the radiation head is aligned at the identified normal position, the subsequent terahertz radiation beam being incident on the target surface at a location of the target surface that is within the selected area that was previously scanned; anddetermining the thickness of one or more coatings on the target surface based on reflected radiation signals from the subsequent terahertz radiation beam.2. The method of further comprising determining an estimated normal of the radiation head with respect to the target surface claim 1 , wherein the selected area surrounds the estimated normal.3. The method of claim 2 , wherein the scanning of the ...

INSTALLATION FOR PRODUCING A FILM WEB AND METHOD FOR OPERATING SUCH AN INSTALLATION

An installation for producing a film web and a method for operating such an installation includes a control circuit having a controller, a sensor and an actuator integrated into the ongoing film production process. The sensor is set up to sense a flatness of the film web, and the sensor is data-connected to the controller, wherein the controller is data-connected to the actuator and the actuator is actuated by the controller in order to control film production on the basis of the flatness. 1. An installation for manufacturing a film web by means of a die from a plastic melt provided by an extruder and for winding up the film web to a film roll by means of a winder , the installation configured to guide the film web on its path along a machine direction from the die to the winder around a guide roller and finally to wind it up onto the film roll at the winder ,the installation comprising a control circuit with a controller, a sensor and an actuator,whereinthe sensor is adapted to determine a measure for the flatness of the film web, andthe controller is adapted to actuate the actuator using the measure of the flatness in order to improve the flatness of the film web.2. The installation according to claim 1 , wherein the installation has a second control circuit with a sensor which is adapted to determine a measure of a deviation of the thickness profile claim 1 , and with a controller adapted to actuate an actuator using the measure of the deviation of the thickness profile in order to improve the deviation of the thickness profile.3. The installation according to claim 1 , wherein the controller is data-connected to the actuator.4. The installation according to claim 1 , wherein the controller is connected to the actuator by motor current.5. The installation according to claim 1 , wherein the actuator is adapted to actuate a heating means or a longitudinal stretching unit in the path from the die to the winder.6. The installation according to claim 1 , wherein the ...

Engineered Plank and its Manufacturing Method

A plank is described and a method for manufacturing the plank. The plank can be produced by mixing polyvinyl chloride powder, coarse whiting and light calcium compound powder, stabilizer, polyethylene wax, internal lubricant, plasticizer, and impact modifier together, and stirring this mixture. The mixture is then extruded through an extruder compound to form a plastic composite base material. A surface layer is then tiled onto the plastic composite base material using thermal compression, without the use of intermediate adhesive materials. 19-. (canceled)10. A method of producing an engineered flooring plank , the method comprising:mixing polyvinyl chloride powder, coarse whiting compound powder, stabilizer, polyethylene wax, internal lubricant, plasticizer, and impact modifier to form a mixture;heating the mixture in a hot mixing process at a temperature of between 110° C. and 120° C. to form a heated mixture;stirring the heated mixture;extruding the heated mixture using an extrusion mold to form a plastic composite substrate;providing a surface layer comprising one or more of plastic, paper, leather, cloth or cork; a) pressing a surface layer material onto the plastic composite substrate while the plastic composite substrate remains heated following the extruding, the pressing occurring at a temperature between 150° C. and 200° C.;', 'b) thermally compressing the plastic composite base and the surface layer, without using intermediate adhesive materials; and', {'b': '101', 'c) impressing a concave and/or convex mold pattern onto the surface layer , wherein at least the pressing and thermally compressing are continuous-press processes.'}], 'using a three-roller calender The invention relates to building materials, especially involving an engineered plank and its production method.This application claims priority from one or more of the following:Chinese Patent Appl. No. 201510794065.2, filed Nov. 17, 2015 and entitled “Flooring with Fastener”;Chinese Patent Appl. ...

METHOD AND DEVICE FOR PRODUCING RUBBER-COATED METAL WIRE

A method and device for producing metal wire by sheathing a wire with an elastomer compound coming from an extruder is described herein. The aspects disclosed herein may include a feed canal for feeding a sheathing die, through which the wire is made to pass at a pre-established nominal speed. Various temperatures are controlled during the method based on a variety of parameters such as the measured speed at which the wire is moving is other than the nominal speed. 1. A Method for producing metal wire by sheathing a wire with an elastomer compound from an extruder. comprising:feeding a sheathing die, via a feed canal through which the wire is made to pass at a pre-established nominal speed Vn;controlling a temperature of a downstream end of the sheathing die so that the temperature is varied for a predetermined duration and independent of other parts of the sheathing die when a measured speed (Vm) at which the wire is moving is other than Vn.2. The method according to claim 1 , wherein a reference temperature Tn is applied to the downstream end of the sheathing die when the measured speed at which the wire is travelling is equal to a pre-established nominal speed Vn claim 1 , and in that at least one reference temperature Ttrans>Tn is applied for a duration shorter than the duration for which the measured speed is different from the nominal speed and the wire is accelerated.3. The method according to claim 1 , wherein a reference temperature Tn is applied to the downstream end of the sheathing die when the measured speed at which the wire is travelling is equal to a pre-established nominal speed Vn and in that at least one reference temperature Ttrans>Tn is applied for a duration equal to the duration for which the measured speed is different from the nominal speed and the wire is slowed.4. The method according to claim 3 , wherein the temperature reference Ttrans applied is greater than Tn and follows a variation law proportional to the measured speed at which the ...

VERY THIN TUBE MADE FROM TPU AND ITS PRODUCTION PROCESS

The present invention is directed to a process for the preparation of a tube with an outer diameter in the range of from 10 μm to 250 μm consisting of a composition comprising a thermoplastic polyurethane as well as to a tube with an outer diameter in the range of from 10 μm to 250 μm consisting of a composition comprising a thermoplastic polyurethane obtained or obtainable by the process according to the invention. The invention is further directed to the use of a tube according to the invention as a tube for the transportation of a fluid or as gas membrane tube or as an elastic fiber. 1. A process for preparing at least one tube with an outer diameter of from 10 μm to 250 μm comprising a thermoplastic polyurethane , the process comprising(i) melting a thermoplastic polyurethane in an extruder at a temperature of 160° C. to 230° C. to obtain a molten thermoplastic polyurethane;(ii) to the molten thermoplastic polyurethane, adding a composition comprising a cross linker comprising isocyanate groups to obtain a mixture and mixing the mixture to form a melt;(iii) extruding the melt through a spinneret heated at 180° C. to 230° C. to obtain a melt-spun elastic tube;(iv) cooling the melt spun elastic tube in a cooling section to obtain a cooled melt spun elastic tube; and(v) contacting the cooled melt spun elastic tube with finish oil in a finishing section, the finish oil being selected from the group consisting of mineral oil and silicone oil;wherein the extruder, the cooling section, and the finishing section are arranged in a vertical setting.2. The process according to claim 1 , wherein the tube is round.3. The process according to claim 1 , wherein the tube has soft stretch properties.4. The process according to claim 1 , wherein the spinneret has more than one opening.5. The process according to claim 4 , wherein said more than one opening are arc-like slots.6. The process according to claim 1 , wherein the spinneret is heated to a temperature of from 180° C. to ...

SPINNING APPARATUS, NOZZLE HEAD AND SPINNING METHOD

According to one embodiment, a spinning apparatus includes a nozzle head, a power generating, and a first atmosphere controller. The nozzle head dispenses a source material liquid from a tip portion toward a collector. The power generating unit generates an electric potential difference between the tip portion and the collector. The first atmosphere controller controls an atmosphere of a first space at a periphery of the nozzle head. 1. A spinning apparatus , comprising:a nozzle head dispensing a source material liquid from a tip portion toward a collector;a power generating unit generating an electric potential difference between the tip portion and the collector; anda first atmosphere controller controlling an atmosphere of a first space at a periphery of the nozzle head.2. The spinning apparatus according to claim 1 , wherein the first atmosphere controller generates an air flow claim 1 , the air flow having humidity that is adjusted.3. The spinning apparatus according to claim 2 , wherein the humidity of the air flow is lower than a humidity of a periphery of the collector.4. The spinning apparatus according to claim 2 , wherein the first atmosphere controller adjusts a temperature of the air flow.5. The spinning apparatus according to claim 1 , further comprising a second atmosphere controller controlling an atmosphere of a second space claim 1 , the second space being above the collector and being other than the first space.6. The spinning apparatus according to claim 2 , further comprising an air flow guide guiding the air flow generated from the first atmosphere controller into the first space.7. The spinning apparatus according to claim 6 , wherein the air flow guide is disposed between the collector and an outflow port of the air flow of the first atmosphere controller.8. The spinning apparatus according to claim 1 , wherein a curvature of a protrusion of a surface of a main body portion of the nozzle head is smaller than a curvature of a surface of the ...

Apparatus for Producing Films Stretched In-Line

The invention relates to an apparatus for producing tubular films stretched in-line by blow molding with an extruder, a film blowing line, a lay-flat unit, an oscillating haul-off unit, and a stretching line for monoaxially stretching the film laid flat in machine direction. According to the invention, the stretching line is arranged above the extruder between the lay-flat unit and the oscillating haul-off unit. 1. An apparatus for producing tubular films stretched inline by blow molding with an extruder , a film blowing line a lay-flat unit , an oscillating haul-off unit , and a stretching line for rnonoaxially stretching the film laid flat in machine direction , whereinthe stretching line is arranged above the extruder between the lay-flat unit and the oscillating haul-off unit.2. The apparatus according to claim 1 , wherein the stretching line together with the haul-off unit provided downstream of the same in conveying direction is rotatably mounted on a platform above the lay-flat unit.3. The apparatus according to claim 2 , wherein on the platform beside the stretching line further components such as electrical converters and/or electric feed components and/or drives are arranged.4. The apparatus according to claim 2 , wherein for the central supply of electricity and water slip rings and a rotary water lead-through are provided above the platform and/or a communication cable is guided onto the platform as data line.5. The apparatus according to claim 1 , wherein above the platform observation systems claim 1 , preferably cameras claim 1 , are arranged at various positions.6. The apparatus according to claim 1 , wherein the rollers of the stretching line are driven and temperature-controlled individually and the rollers form at least one stretching nip claim 1 , wherein the same advantageously is adjustable.7. The apparatus according to claim 1 , wherein the rollers of the stretching line have different diameters claim 1 , and the stretching rollers have a ...

MULTI-LAYER FILM WITH IMPROVED MODULUS PROPERTIES

The invention relates to a multi-layer, preferably co-extruded, plastic film with improved modulus properties, which is suitable, in particular, for producing three-dimensionally shaped articles. 118-. (canceled)19. A three-layer plastic film , comprising:{'sub': 'g', 'a core layer A comprising at least one polycarbonate or copolycarbonate and/or a polyester or copolyester having a glass transition temperature Tfrom 80° C. to 200° C.,'}two outer layers B comprising at least one thermoplastic polyurethane and/or polyester or copolyester exhibiting a hardness from 45 Shore D to 85 Shore D;wherein the core layer A is located between the two outer layers B.20. The three-layer plastic film according to claim 19 , wherein the core layer A comprises at least one polyester or copolyester having an inherent viscosity from 0.50 dL/g to 1.20 dL/g and a glass transition temperature Tfrom 80° C. to 200° C.21. The three-layer plastic film according to claim 19 , wherein the two outer layers B comprise at least one thermoplastic polyurethane exhibiting a hardness from 45 Shore D to 85 Shore D.22. The three-layer plastic film according to claim 19 , wherein [ i) 70 mole % to 100 mole % terephthalic acid residues,', 'ii) 0 mole % to 30 mole % aromatic dicarboxylic acid residues with up to 20 carbon atoms, and', 'iii) 0 mole % to 10 mole % aliphatic dicarboxylic acid residues with up to 16 carbon atoms, and, '(a) a dicarboxylic acid component comprising'}, i) 5 mole % to 50 mole % 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and', 'ii) 50 mole % to 95 mole % 1,4-cyclohexanedimethanol residues,, '(b) a diol component comprising'}], 'the core layer A comprises at least one copolyester that exhibits residues from'}wherein the sum of the mole % of residues i)-iii) of the dicarboxylic acid component amounts to 100 mole % and the sum of the mole % of residues i) and ii) of the diol component amounts to 100 mole %{'sub': 'g', 'and wherein the inherent viscosity of the copolyester is ...

METHODS OF EXTRUDING MULTILAYER FIBERS

The present disclosure is directed to tubular fibers and methods of making thereof. In some cases, the fibers may be made of a hydrogel, in some cases an alginate hydrogel. The tube may have a nonsolid inner layer and an outer layer surrounding the inner layer. At least one of the inner layer and the outer layer may contain cells. In some cases, the tubular fiber may be used to study intercellular interactions. 1. A method of making a multilayer fiber for use as a biological tissue model , the method comprising:injecting a first fluid into a first flow channel at a first flow rate;injecting a second fluid into a second flow channel at a second flow rate, the second flow channel radially surrounding the first flow channel; andinjecting a third fluid into a third flow channel at a third flow rate, the third flow channel radially surrounding the second flow channel and having an outlet downstream of the first and second flow channels; andextruding a multilayer fiber from the outlet, the multilayer fiber having an outer layer comprising a hydrogel formed by gelation of the second fluid and an inner layer comprising the first fluid.2. The method of claim 1 , wherein the first flow channel is positioned substantially concentrically within the second flow channel.3. The method of any of claim 1 , wherein the second flow channel is positioned substantially concentrically within the third flow channel.4. The method of claim 1 , wherein the second fluid is a viscoelastic material.5. The method of claim 1 , wherein the second fluid comprises alginate.6. The method of claim 1 , wherein the first fluid comprises a tissue culture medium.7. The method of claim 1 , wherein at least one of the first fluid and the third fluid comprises a first gelating agent.8. (canceled)9. (canceled)10. (canceled)11. The method of claim 1 , wherein the multilayer fiber has a folded structure claim 1 , a first portion of the outer layer of the tubular fiber being in contact with and overlying a ...

Extrusion Process

A method for using the quantity of heat output from an extrudate during a cooling operation in an extrusion process, wherein a fluid, in particular air, is guided along the extrudate and/or through the die counter to an extrusion direction, at least some of the heat from the extrudate and/or the die is transmitted to the fluid, the heated fluid is supplied from a first sub region of a process chain, comprising at least one die, a calibrating and cooling device and a take-off apparatus, via a connecting region, preferably consisting of at least one connecting pipe, to a second sub region of the process chain, comprising at least one suction apparatus. In the connecting region, an extraneous fluid can be added to the heated fluid in order to reduce the actual temperature of the heated fluid at least below a predetermined maximum value before said fluid is supplied to the second sub region of the process chain.

COTTONSEED OIL BASED ADDITIVE COMPOSITIONS FOR PLASTICS MOLDING AND EXTRUSION

A method of fabricating plastic products having a preselected characteristic, comprising preparing a dispersion of at least one additive contributes the preselected characteristic in cottonseed oil; supplying a preselected plastic resin for the product to be fabricated to a process machine having a rotating screw; furnishing the dispersion to the process machine at a position adjacent to threaded portion of the rotating screw; and blending the dispersion and the resin by rotating the screw. 1. A blend for use in molding or extruding plastic products comprising at least one additive and cottonseed oil.2. A method of fabricating a plastic article , comprising:a) preparing a blend comprising plastic resin, at least one additive selected to impart a preselected characteristic to the article to be fabricated, and cottonseed oil; andb) forming the blend under pressure and heat into the plastic article.3. The method of claim 2 , wherein forming comprises injection molding.4. The method of claim 2 , wherein forming comprises extruding.5. The method of claim 4 , wherein the blend comprises at least one dispersion of solid phase additive in cottonseed oil.6. The method of claim 5 , wherein the blend comprises a plurality of dispersions claim 5 , each of a solid phase additive claim 5 , in cottonseed oil.7. The method of claim 2 , wherein the blend comprises at least one additive to facilitate fabrication of the plastic article.8. The method of claim 7 , wherein the additive is dispersed in cottonseed oil.9. A method of molding or extruding plastic parts comprising the steps of:a) providing a collection of additives, at least one of which is a solid;b) providing a quantity of cottonseed oil;c) creating a plurality of single additive dispersions each in a cottonseed oil carrier;d) mixing selected ones of the single additive dispersions to create a blend;e) milling the blend; andf) adding the blend to thermoplastic resin in the course of molding or extrusion.10. A method of ...

PRODUCTION METHOD FOR RESIN MOLDING

A production method for a resin molding includes: preparing fiber-reinforced resin by continuously feeding a long roving containing a reinforcing fiber, with its length unchanged, into base resin that has been heated to be plasticized; forming a resin molding using the fiber-reinforced resin; and heating the formed resin molding in a non-oxidizing atmosphere. 1. A production method for a resin molding made of fiber-reinforced resin containing base resin and a reinforcing fiber , the production method comprising:a fiber-reinforced resin preparation step of preparing the fiber-reinforced resin by continuously feeding a long roving containing the reinforcing fiber, with its length unchanged, into the base resin that has been heated to be plasticized;a resin molding formation step of forming the resin molding using the fiber-reinforced resin prepared; anda resin molding heating step of heating, in a non-oxidizing atmosphere, the resin molding formed.2. The production method for a resin molding according to claim 1 , wherein heating temperature for the resin molding is set at a temperature equal to or higher than a temperature at which reaction of a functional group at an end of the base resin occurs and lower than a melting point of the base resin.3. The production method for a resin molding according to claim 1 , wherein the non-oxidizing atmosphere is at least one of a reduced-pressure atmosphere and an inert gas atmosphere.4. The production method for a resin molding according to claim 1 , wherein claim 1 , the fiber-reinforced resin preparation step and the resin molding formation step are continuously performed claim 1 , the fiber-reinforced resin preparation step performed by using an injection molding machine including a plasticizing cylinder that heats and plasticizes the base resin while conveying the base resin in one direction and a feeding portion that continuously feeds the roving into the base resin being conveyed in the plasticizing cylinder and by using ...

ASSEMBLY FOR CREATING AN EXTRUDED PIPE FOR USE IN A GEOTHERMAL HEAT RECOVERY OPERATION

An assembly and process for forming a two stage extruded pipe having a central inner sleeve and a pair of outer attached lobes. The central sleeve shaped (also termed a grout receiving tube) is produced in an initial extrusion operation, following which it enters a cross head operation where a pair of outer lobes are attached to cross sectional exterior surface locations according to a second stage extrusion operation so as to be integrally formed therewith. Other steps include cooling of the dual stage extruded pipe, as well as sectioning and stacking the pipe. Additional steps include forming elongated slots or apertures into the central sleeve portion of the finished extrusion, such in non-interfering fashion with the individual passageway defining and lobes. 1. An assembly for producing a two stage extruded pipe , comprising:a first extruder receiving a first extrudate material for forming a sleeve shaped component;a second extruder including a cross head die through which is fed the sleeve shape component, said second extruder also including a pair of elongated mandrels extending from an outlet of said cross head die and between which communicates the sleeve shaped component, a second extrudate material flowing across each mandrel and conjoining the sleeve shaped component at circumferentially spaced apart locations in order to form a pair of individual passageway defining lobes upon the sleeve;said second extruder further having independent temperature controls for each of said elongated mandrels and for assisting in shaping the attachment interface between the lobes and central sleeve;a cooling station in communication with extending ends of said elongated mandrels for receiving and supporting the two stage extruded pipe during cooling and hardening; anda puller communicating with an outlet of said cooling station for drawing the two stage extruded pipe and prior to cutting the co-extruded pipe to specified running lengths.211. The assembly as described in ...

Apparatus and Method for Creating Additive Manufacturing Filament from Recycled Materials

An additive manufacturing filament production apparatus, having a processing chamber; and a continuous molding module wherein said processing chamber comprises a sealable air-tight housing, a heating element, an actuator-controlled piston, and a vacuum supply. 1. An additive manufacturing filament production apparatus , comprising:a processing chamber; anda continuous molding modulewherein said processing chamber comprises a sealable air-tight housing, a heating element, an actuator-controlled piston, and a vacuum supply.2. The additive manufacturing filament production apparatus of claim 1 , wherein said continuous molding module comprises a static molding nozzle.3. The additive manufacturing filament production apparatus of claim 2 , wherein said static molding nozzle comprises a heated module and a cooling die module.4. The additive manufacturing filament production apparatus of claim 1 , wherein said continuous molding module comprises a nozzle; a circulating chain of lower molding plates connectively attached to a lower rotation module; and a circulating chain of upper molding plates connectively attached to an upper rotation module.5. The additive manufacturing filament production apparatus of claim 1 , wherein said continuous molding module comprises a nozzle; a circulating lower molding belt; a lower rotating mechanism; a circulating upper molding belt; and an upper rotating mechanism.6. The additive manufacturing filament production apparatus of claim 1 , wherein said continuous molding module comprises a sliding nozzle; at least one lower reciprocating mold plate; at least one upper reciprocating mold plate; and a tension control mechanism.7. The additive manufacturing filament production apparatus of further comprising an automatic spooling module.8. The additive manufacturing filament production apparatus of claim 5 , wherein said automatic spooling mechanism comprises a plurality of pinch rollers; a guiding tube; a level wind guide; a linear stage; and ...

SPECTRAL PROPERTIES-BASED SYSTEM AND METHOD FOR FEEDING MASTERBATCHES INTO A PLASTIC PROCESSING MACHINE

A method and system for optimizing a match between the color of an in-line part manufactured by a plastic product production machine and the color of a reference part by adjusting the concentration of masterbatch in the mixture of raw material fed to the plastic product production machine. The optimization of the color is based on spectra of the in-line part and reference part obtained within a short time interval using the same spectrometer, thereby eliminating the requirement for high accuracy spectrometer calibration and allowing the method, which determines the rates at which the base masterbatches are added to the raw material, to be carried out in real time on the manufacturing floor while the plastic product production machine is being operated to manufacture in-line parts. 1. A method for optimizing a match between the color of an in-line part manufactured by a plastic product production machine and the color of a reference part by adjusting the concentration of masterbatch in the mixture of raw material fed to the plastic product production machine , the method comprising:a. measuring the spectrum of the in-line part with a spectrometer;b. measuring the spectrum of the reference part with a spectrometer;c. determining the color coordinates of the in-line part and the reference part from the spectra measured in steps a and b;d. determining the color coordinates of a set point, which corresponds to the lowest concentration of masterbatch required to make the color of the in-line part indistinguishable to the human eye from the color of the reference part;e. determining the distance ΔE between the color coordinates of the in-line part and the color coordinates of a set point determined in step d;f. determining a signal for controlling the feed speed of the mechanism that adds masterbatch to the mixture of raw material fed to the plastic product production machine; andg. controlling the feed speed of the mechanism that adds masterbatch to the mixture of raw ...

Calibrating Device and Method for Calibrating a Film Tube

The invention relates to a calibrating device and to a method for calibrating a film tube. An elastically deformable element () is secured to the sleeve () such that a fluid, in particular a gas, preferably air, can be introduced or discharged via a fluid connection such that a specific pressure P and/or a specific volume V is set in an area () enclosed by the sleeve and the elastically deformable element at a given temperature. Annular bodies () and () are arranged within the area (), and a surface section of each annular body (), () supports a respective region of the elastically deformable element (). The elastically deformable element () regions which are supported by the annular bodies are located in the inlet region () and the outlet region () of the calibrating device for the film tube (). 115-. (canceled)17. The calibrating device of claim 16 , wherein the at least one guidance element and/or the guidance surface claim 16 , when viewed in the transport direction claim 16 , at the start of the calibration device claim 16 , form an inlet region with a cross section that diminishes in the transport direction.18. The calibrating device of claim 17 , wherein the cross section is adjustable or constant claim 17 , independent of the distance of the guidance surface and/or of the guidance element to the axis of symmetry.19. The calibrating device of claim 17 , wherein the inlet region in cross section has at least in part a circular arc shaped cross section.20. The calibrating device of claim 18 , wherein a static liquid ring is provided in the inlet region for formation of the liquid reservoir.21. The calibrating device of claim 16 , wherein the at least one guidance element makes available a cylindrical claim 16 , barrel-shaped or conical area for the film tube.22. The calibrating device of claim 16 , wherein the distance of the at least one guidance element to the axis of symmetry in the radial direction is adjustable.23. The calibrating device of claim 16 , ...

Engineered Plank and its Manufacturing Method

A plank is described and a method for manufacturing the plank. The plank can be produced by mixing polyvinyl chloride powder, coarse whiting and light calcium compound powder, stabilizer, polyethylene wax, internal lubricant, plasticizer, and impact modifier together, and stirring this mixture. The mixture is then extruded through an extruder compound to form a plastic composite base material. A surface layer is then tiled onto the plastic composite base material using thermal compression, without the use of intermediate adhesive materials. The surface layer can be embossed when it is combined with the mixture being extruded. 1. An engineered plank comprising:a surface layer, anda plastic composite base material layer, wherein the surface layer is fused to the plastic composite base material layer by thermal compression without the use of intermediate adhesive materials.2. The engineered plank of claim 1 , wherein the surface layer is constructed using one or more of ceramic claim 1 , tile claim 1 , glass claim 1 , rubber plastic claim 1 , paper claim 1 , leather claim 1 , metal materials claim 1 , stone claim 1 , cloth claim 1 , carpet claim 1 , wood claim 1 , and cork.3. The engineered plank of claim 1 , wherein the plastic composite base material layer is produced by extruding out a compound claim 1 , the compound produced from a mixture including one or more of polyvinyl chloride powder claim 1 , coarse whiting and light calcium compound powder claim 1 , stabilizer claim 1 , polyethylene wax claim 1 , internal lubricant claim 1 , plasticizer claim 1 , and impact modifier.4. The engineered plank of claim 1 , wherein the plastic composite base material layer is produced by extruding and compounding by a layer of plastic substrate.5. The engineered plank of claim 1 , wherein the plastic composite base material can is produced by blending and extruding two or more layers of plastic substrate.6. A method of producing an engineered plank claim 1 , the method ...

Process, apparatus and system for creating extrudable material having color effects and products made with extrudable material created with same

A process and associated system for creating color effects in extrudable material, such as plastic and metal for example, are presented. Flows of first and second viscous materials of respective colors are provided and then combined in a predetermined pattern to form a stream of combined viscous material. In a first aspect, the flow rate of the first viscous material is caused to vary over time in order to vary an amount of the first viscous material in the stream. In a second aspect, which may be used alone or in combination with the first aspect, the first and second viscous materials have distinct viscosities to reduce an amount of color blending between the first color and the second color in the stream of combined viscous material. A static mixer may then be used to apply a predetermined dividing, overturning and combining motion to the stream of combined viscous material to partially mix the first viscous material and the second viscous material, such that upon exiting the static mixer, the first material of the first color and the second material of the second color form a color pattern in the stream of combined viscous material. Sheets of extrudable material may be created using such process and used in the manufacturing of many different products including for example kayaks and stand-up paddle boards. 1) A process for creating color effects in extrudable material , said process comprising:a) providing a flow of a first viscous material of a first color, wherein the flow of the first viscous material is associated with a first rate of flow and wherein providing the flow of the first viscous material of the first color includes varying the first rate of flow over time;b) providing a flow of a second viscous material of a second color different from the first color, wherein the flow of the second viscous material is associated with a second rate of flow;c) combining in a predetermined pattern the flow of the first viscous material and the flow of the second ...

Apparatus And Method For Automatically Analyzing Extruded Films

The invention relates to an apparatus () for automatically analyzing extruded films, in particular stretched films (), wherein a neck-in portion is formed at each of both edges of the film at a specific distance from an extrusion lip of a film extruder along the longitudinal transport direction of the film, and a respective method. The apparatus comprises two edge detectors () being arranged along a first line substantially transversal to the longitudinal direction and being spaced from each other by a specific distance, wherein each one edge detector () is configured to detect, preferably to continuously detect the lateral position of one respective edge of the neck-in portion of the film, a calculation means for determining the spatial relation between at least one lateral position at the extrusion lip and a respective lateral position at the neck-in portion on the basis of the two lateral positions of the edges of the neck-in portion of the film. 1. Apparatus for automatically analyzing extruded films , in particular stretched films , wherein a neck-in portion is formed at each of both edges of the film at a specific distance from an extrusion lip of a film extruder along the longitudinal transport direction of the film , the apparatus comprising:two edge detectors being arranged along a first line substantially transversal to the longitudinal direction and being spaced from each other by a specific distance, wherein each one edge detector is configured to detect, preferably to continuously detect the lateral position of one respective edge of the neck-in portion of the film,a calculation means for determining the spatial relation between at least one lateral position at the extrusion lip and a respective lateral position at the neck-in portion on the basis of the two lateral positions of the edges of the neck-in portion of the film.2. Apparatus according to claim 1 , further comprising:wherein the calculation means determines the width of the film along the ...

TEMPERATURE PROBE, PARTICULARLY FOR THERMOPLASTIC MIX EXTRUSION MACHINES

A temperature probe, particularly for thermoplastic mix extrusion machines, which comprises at least one casing, which is adapted to be inserted in an extrusion cylinder substantially at right angles to the extrusion direction with one end thereof facing into the internal cavity of the extrusion cylinder so that it is in direct contact with the extrusion material contained in the internal cavity, and at least one thermocouple, which is accommodated in the casing and is adapted to detect the temperature of the extrusion material by thermal conduction through the casing, the temperature probe comprising thermally insulating elements which are interposed at least partially between the casing and the extrusion cylinder so as to reduce the thermal influence of the extrusion cylinder on the measurement made by the thermocouple. 1. A temperature probe , particularly for thermoplastic mix extrusion machines , which comprises at least one casing , which is adapted to be inserted in an extrusion cylinder substantially at right angles to the extrusion direction with one end thereof facing into the internal cavity of said extrusion cylinder so that it is in direct contact with the extrusion material contained in said internal cavity of said extrusion cylinder , and at least one thermocouple , which is accommodated in said at least one casing and is adapted to detect the temperature of said extrusion material by thermal conduction through said at least one casing , comprising thermally insulating means which are interposed at least partially between said at least one casing and said extrusion cylinder , so as to reduce the thermal influence of said extrusion cylinder on the measurement made by said at least one thermocouple.2. The temperature probe according to claim 1 , wherein said thermally insulating means comprise at least one externally threaded bushing which is adapted to be screwed into a partially threaded through hole which is defined in said extrusion cylinder ...

LONG FIBER REINFORCED THERMOPLASTIC FILAMENT

A method of manufacturing a long fiber reinforced thermoplastic filament includes disposing a mixture of fibrous material and thermoplastic material into a hopper of an extruder device and introducing the mixture into the extruder and through an extensional flow die to preserve longer fiber lengths. From the extensional flow die the mixture is passed through a drawing die to create the long fiber reinforced filament. 1. A method of manufacturing a long fiber reinforced thermoplastic filament comprisingdisposing a mixture of fiber containing material and thermoplastic material into a hopper of an extruder device;introducing the mixture of fiber containing material and thermoplastic material into the extruder device;passing the mixture of fiber containing material and thermoplastic material through the extruder device; andextruding the mixture of fiber containing material and thermoplastic material through an extensional flow die to create a long fiber filament extrudate.2. The method of wherein the extruder device is a single screw extruder.3. The method of wherein the extruder device is a low compression and low shear extruder.4. The method of further comprising shredding the fiber containing material before mixing with the thermoplastic material.5. The method of wherein the thermoplastic material is in pellet form.6. The method of wherein the fiber containing material is a shredded recycled molded thermoplastic material.7. The method of wherein the fiber material is shredded reinforced nylon.8. The method of further comprising drawing the long fiber filament extrudate from the at least one shaping die through a second drawing die.9. The method of wherein the at least one shaping die further comprises a first extrudate diameter claim 8 , and the second drawing die having a second extrudate diameter that is smaller than the first extrudate diameter.101. The method of further comprising cooling the long fiber filament extrudate after extrusion through the at least one ...

SINGLE AND TWIN SCREW EXTRUDERS WITH ULTRASOUND HORNS FOR DECROSSLINKING AND DEVULCANIZATION

Processes for decrosslinking crosslinked plastic and devulcanizing vulcanized rubber include advancing such materials through single screw or twin screw extruders including special ultrasonic treatment zones wherein threadless shaft (single screw) or shafts (twin screw) rotate under an ultrasonic horn having a distal end aligned with the shaft or shafts and being shaped complimentary thereto. Special arcuate (single screw) or double-arcuate ultrasonic treatment flow paths confine the materials to flow under the horn where the material is subjected to ultrasonic waves to decrosslink the material, in the case of crosslinked plastic, or devulcanize the material, in the case of vulcanized rubber, with the extrudate leaving the die as a continuous stream or rope as is typical of virgin plastic or rubber. 1. A process for decrosslinking crosslinked plastics or devulcanizing vulcanized rubber comprising the steps of:feeding crosslinked plastic or vulcanized rubber to a screw extruder having a screw in a barrel, the screw having an axis; a body having a cylindrical bore therethrough defining a bore axis, the body also having a horn passage communicating with the cylindrical bore,', 'a cylindrical shaft associated with the screw to rotate therewith, the shaft rotating in the bore of the body and providing no threads such that the crosslinked plastic or vulcanized rubber is not advanced by rotation of the shaft, but rather is advanced by rotation of the screw forcing the crosslinked plastic or vulcanized rubber into the ultrasonic treatment zone, and', 'an ultrasonic horn extending into said horn passage, the ultrasonic horn being aligned over the cylindrical shaft and having a distal end spaced from the cylindrical shaft, the distal end being shaped complimentary to the shaft to define a portion of an arcuate ultrasonic treatment flow path;, 'advancing the crosslinked plastic or vulcanized rubber, by rotation of the screw, to an ultrasonic treatment zone in the barrel, the ...

Dynamically controlled screw-driven extrusion

A screw-driven extrusion system includes a novel screw-drive extruder. The extruder includes a motor-driven screw. The screw moves solid pellets from a feed hopper into a section that is actively heated. The solid pellets fully liquefy as they pass through the heated section. A control system controls screw, heating, and optionally cooling, operations to selectively control flow of liquefied material from the extruder's tip. The dynamically-controlled can continuously adjust its feed speed and temperature to keep up with continuously changing demands of a larger control system involved in monitoring and running a corresponding 3-D printer in an additive manufacturing process. In contrast to wirefeed extrusion systems that rely on the rigidity of the material in “wire”-formed feedstock, this screw-driven extrusion system is well-suited to use of less-rigid thermoplastic elastomers for the manufacture of objects for use in soft robotics, medical and mold-making applications.

Apparatus And Method For Providing Marks On Extruded Films

The invention relates to an apparatus ( 10 ) for providing marks on extruded films ( 7 ), in particular on stretched films, which are exiting an extrusion lip ( 3 ) of a film extruder ( 1 ) and a respective method. The apparatus ( 10 ) comprises at least one nozzle means ( 13 ) for directing a gas stream, preferably an air stream to a surface of the film ( 7 ) exiting the extrusion lip ( 3 ) of the film extruder ( 1 ), wherein the nozzle means ( 13 ) are configured and arranged in such a manner that the gas stream locally causes a cooling of the extruded film ( 7 ) to create a local mark.