COATING COMPOSITION

A coating composition is provided comprising a hydrophilic characteristic-effecting material compound. The production of the hydrophilic characteristic-effecting material compound is effected by admixing of operative starting materials. The operative starting materials include a superwetter material and an adhesion promoting agent material. The hydrophilic characteristic-effecting material compound includes a superwetter material- derived coating composition material fraction and an adhesion promoting agent material- derived material fraction. The adhesion promoting agent material-derived coating composition material fraction is configured for interacting with a substrate such that, in response to, at least, contacting between the coating composition and the substrate, adhesion of an operative surface material to the substrate is effected.

Communication-in-motion antenna control method and device, and system

The invention relates to the field of communication, and provides a communication-in-motion antenna control method and device, and a system. The control method comprises the steps that a main controller acquires first attitude information and first position information of a carrier of a communication-in-motion antenna and position information of a target and calculates pointing information of the communication-in-motion antenna, and the pointing information is sent to an auxiliary controller through a router; and the auxiliary controller performs control law calculation according to the pointing information from the main controller to obtain a first control instruction, and sends the first control instruction to the driving system. As the task load of the main controller and the auxiliary controller is smaller than the task load of the centralized controller, the main controller and the auxiliary controller can adopt cheaper microprocessors to realize corresponding functions, and the development ...

X-ray imaging stretching fault automatic detection method for steel cable core conveying belt joint

The invention relates to an X-ray imaging stretching fault automatic detection method for a steel cable core conveying belt joint, which belongs to the field of X-ray nondestructive detection. Defects of lower reliability, poorer accuracy, non-visual display, dependence mainly on manual detection and the like exist in the current stretching fault detection of a current steel cable core conveying belt joint. The invention consists of the following three aspects: 1. on the basis of the gray level change characteristic of X-ray images of a steel cable core conveying belt, screening out images containing partial or all joint information from the X-ray images of the whole steel cable core conveying belt by adopting local histogram information; 2. splicing the screened images into the corresponding image containing the complete joint information; and 3. realizing the judgment for the stretching of each joint by adopting an improved condition Y-difference algorithm and a clustering method. The ...

Novel method for preparing pregabalin raceme hydrochloride

The invention discloses a route and method for preparing 3-aminomethyl-5-methylhexanoic acid, namely pregabalin raceme hydrochloride. The method comprises the following steps of: performing condensation on 4-methyl-2-pentanone to obtain a compound in a formula (1), and performing reduction to obtain a compound in a formula (2); performing halogenation or esterification to obtain a compound in a formula (3a), and performing substitution to obtain a compound in a formula (4), or performing elimination on the compound in the formula (3a) to obtain a compound in a formula (3b) and performing addition to obtain a compound in the formula (4); and performing reduction and acidolysis on the compound in the formula (4) to obtain a pregabalin hydrochloride compound in a formula (6). The method is easy to operate, mild in reaction conditions, and low in cost, and is suitable for large-scale industrial production.

POLYMERS WITH SILICON-CONTAINING STRUCTURAL UNITS AND COATING COMPOSITIONS INCLUDING THESE POLYMERS

A polymer and a coating composition comprising the polymer are provided. The polymer has the formula R11QR12, wherein R11 and R12 are H, OH or an organic group, and Q represents [-P-]N- Moiety P, at each occurrence is, independently, A1, A2 or R13, and Q has at least two A1 units and at least two A2 units. A1 has structural formula (1a), A2 has structural formula (1b) and R13 is a divalent organic group. In structures (1a) and (1b) radicals R1 and R6 are H or an organic group and R2-R10 represent organic groups. A coating composition comprising the polymer and articles coated with the composition are also disclosed.

Network feedback control method of cold rolling mill thickness control system

Process setting method for single-frame double-coiling aluminium hot-rolling mill

The invention provides a process setting method of a single-stand aluminum hot rolling mill with two coilers. A corresponding rolling schedule setting model is established according to the technical features of the single-stand aluminum hot rolling with two coilers; the rolling schedule setting model program is complied into a dynamic link library; a memory sharing manner is adopted to the data sharing of each setting model program; WINCC is adopted as an invoking platform in all programs of the dynamic link library; the WINCC and basic automatic grade adopt Ethernet communication, have the functions of data collection, setting program invoking, setting model self-studying, rolling line tracing, and the like and realize the automatic setting and online modification of the schedule of single-stand aluminum hot rolling. The method obviously increases the quality precision such as thickness, convexity, and the like of aluminum hot rolling strip coilers and adequately ensures the stability ...

Automatic charging mechanism for horizontal milling machine

The invention discloses an automatic charging mechanism for a horizontal milling machine. The automatic charging mechanism for the horizontal milling machine comprises a support and a linear driving device fixed on the support; a feeding frame is arranged at the movable end of the linear driving device; a loading frame is arranged above the feeding frame; a draw hook is hinged to the front end of the feeding frame; a material cavity for containing a workpiece is arranged between the draw hook and the front end of the feeding frame; a pull rod is arranged at the front end of the feeding frame. A spring is connected between the lower end of the pull rod and the tail end of the draw hook. The automatic charging mechanism for the horizontal milling machine is stable and reliable in work, can be adjusted according to the size of the workpiece, and is strong in suitability, simple in structure and favorable for automated production.

MULTI-VIEWPOINT IMAGE ACQUISITION METHOD FOR LONGITUDINAL RIP OF CONVEYOR BELT BASED ON LED LIGHT SOURCE

The present disclosure discloses a multi-viewpoint image acquisition method for a longitudinal rip of a conveyor belt based on an LED light source. A system to which the method is applied includes two line scan cameras, a gigabit switch, an image acquisition and processing device, an LED light source, and a PC. The line scan cameras and the PC are connected to the image acquisition and processing device through the gigabit switch. The two line scan cameras are provided between an upper belt and a lower belt of the conveyor belt. Installation positions of the cameras is determined based on the conveyor belt, structural characteristics of relevant components of the conveyor belt, and requirements on images taken by the line scan cameras, to ensure that a complete image of a lower surface of the upper belt of the conveyor belt is formed after the images acquired by the two cameras are spliced and processed by the image acquisition and processing device. The present disclosure uses the LED ...

COATING COMPOSITION

A coating composition is provided comprising a hydrophilic characteristic-effecting material compound. The production of the hydrophilic characteristic-effecting material compound is effected by admixing of operative starting materials. The operative starting materials include a superwetter material and an adhesion promoting agent material. The hydrophilic characteristic-effecting material compound includes a superwetter material-derived coating composition material fraction and an adhesion promoting agent material-derived material fraction. The adhesion promoting agent material-derived coating composition material fraction is configured for interacting with a substrate such that, in response to, at least, contacting between the coating composition and the substrate, adhesion of an operative surface material to the substrate is effected.

Multi-channel temperature acquisition system and clamp for electrolyte

The invention discloses a multi-channel temperature acquisition system for electrolyte and a clamp, and belongs to the field of electrolytic machining. The temperature acquisition system is divided into a main control module, a temperature acquisition module and a monitoring module, adopts an upper and lower computer structural form of a PC (Personal Computer) and a single chip microcomputer, takes the single chip microcomputer as a core, and is supplemented by peripheral function modules to form a structure integrating temperature detection, acquired data conversion, calculation and storage, waveform display, temperature over-limit alarm, communication and the like. Temperature sensors are installed at multiple positions in an electrolyte temperature measuring cavity and an electrolytic tank of the clamp, temperature data collection and storage are achieved by combining the sensors, single-chip microcomputer data conversion and a storage module, and observation and analysis are conducted ...

SVG for high-voltage static synchronous reactive compensation device

The invention discloses an SVG for a high-voltage static synchronous reactive compensation device. The SVG for the high-voltage static synchronous reactive compensation device is composed of a charging cabinet, a power cabinet set, a control cabinet and a connection electric reactor, wherein the charging cabinet, the power cabinet set and the control cabinet are connected in sequence, and the power cabinet set is composed of six power cabinets which are connected in parallel. The SVG for the high-voltage static synchronous reactive compensation device has the advantages that the power factors of a power grid can be improved effectively, reactive power can be compensated, the utilization rate of equipment can be improved, and the electric energy quality of the power grid can be improved; the SVG for the high-voltage static synchronous reactive compensation device is easy to achieve, and maintenance is more convenient and operation is more reliable through a modular structure.

Can have enough to meet need elevartor shaft protection platform

The utility model relates to the field of building -construction, the elevartor shaft protection platform used of construction especially. A can have enough to meet need elevartor shaft protection platform is proposed, including protection platform and supporting component, the protection platform detachable place on the supporting component, the protection platform includes protection frame and protection panel, protection frame and protection panel welded fastening, and the welding has the lifting hook on the protection panel, the supporting component includes sleeve pipe and support steel pipe, and the sleeve pipe is pre -buried in the shear wall, supports the steel pipe and passes the sleeve pipe, supports the both ends of steel pipe and stretches out the shear wall, and the one end adoption steel pipe fastener locking of just stretching out the shear wall outside is fixed. The utility model provides an elevartor shaft protection platform adopts the steel structure to make, and platform ...

Traditional Chinese medicine composition for treating cancer and preparation method thereof

The invention relates to the technical field of traditional Chinese medicines, and particularly relates to a traditional Chinese medicine composition for treating cancer and a preparation method thereof. The traditional Chinese medicine composition comprises the following raw materials: cordyceps sinensis, rhizoma polygonati, radix astragali, burdock, carrots, grifola frondosa, morel and lentinan. The invention provides the traditional Chinese medicine composition for treating the cancer and the preparation method thereof. The traditional Chinese medicine composition provided by the invention realizes the effective prevention of the cancer, including lung cancer, bladder cancer, intestinal cancer, esophagus cancer, stomach cancer, skin cancer and the like by selecting medicinal and edible natural food vegetable drugs as raw materials, enabling the drugs to synergistically act, supporting the healthy energy and reinforcing the vital-qi, exerts outstanding inhibition effect and treatment ...

Cathode diffusion layer for proton exchange membrane fuel cell

The invention discloses a cathode diffusion layer for a fuel cell. The diffusion layer is a porous medium supporting layer arranged between the catalyst layer of the membrane electrode of the fuel cell and a cell flow passage; the inner surface layer of the diffusion layer connected with the catalyst layer is a water inlet layer; the outer surface layer, tightly connected with the cell flow passage, of the diffusion layer is a water outlet layer; in the thickness direction from the water inlet layer to the water outlet layer, the diffusion layer is provided with a plurality of variable-contact-angle layers of which the contact angles are sequentially reduced. The structure of the cathode diffusion layer effectively promotes the transportation of water drops in the diffusion layer towards the direction of the outlet of the flow passage, enables water generated by a cathode to be rapidly drained through the porous passage of the diffusion layer to reach the cell flow passage; the drainage ...

X-ray imaging stretching fault automatic detection method for steel cable core conveying belt joint

The invention relates to an X-ray imaging stretching fault automatic detection method for a steel cable core conveying belt joint, which belongs to the field of X-ray nondestructive detection. Defects of lower reliability, poorer accuracy, non-visual display, dependence mainly on manual detection and the like exist in the current stretching fault detection of a current steel cable core conveying belt joint. The invention consists of the following three aspects: 1. on the basis of the gray level change characteristic of X-ray images of a steel cable core conveying belt, screening out images containing partial or all joint information from the X-ray images of the whole steel cable core conveying belt by adopting local histogram information; 2. splicing the screened images into the corresponding image containing the complete joint information; and 3. realizing the judgment for the stretching of each joint by adopting an improved condition Y-difference algorithm and a clustering method. The ...

Method for entering characters, words and phrases combined Chinese characters

A Chinese-character input method using the combination of word, phrase and sentence features that based on the phonetic letters and the dominant role of phrase and sentence, words and phrases are encoded in the mode of pronunciation, shape and stroke combination, including initial consonant code, vowel code, radial code, stroke code, word-phrase combined code and sentence combined code. Its advantages include short code length (1.6 keystrokes on average), high input speed, easy mastering it, automatically created phrase code, and user updating to high-frequency words or phrases.

Coating composition

A coating composition is provided comprising a hydrophilic characteristic-effecting material compound. The production of the hydrophilic characteristic-effecting material compound is effected by admixing of operative starting materials. The operative starting materials include a superwetter material and an adhesion promoting agent material. The hydrophilic characteristic-effecting material compound includes a superwetter material-derived coating composition material fraction and an adhesion promoting agent material-derived material fraction. The adhesion promoting agent material-derived coating composition material fraction is configured for interacting with a substrate such that, in response to, at least, contacting between the coating composition and the substrate, adhesion of an operative surface material to the substrate is effected.

Knapsack carrying-frame

The invention discloses a multifunctional knapsack rack, which comprises two rack levers of which the left side and the right side are parallel with each other and support cloth arranged between the two rack levers, both sides of the back surface of the back part of the support cloth are provided with nylon adhesive tapes, both sides of the back surface of the front part of the support cloth are connected with binding pieces of which outer sides are also provided with nylon adhesive tapes, ring sleeves are symmetrically fixed on two side edges of the support cloth, and the ring sleeves are sleeved in the corresponding rack levers; each rack lever comprises a front main pipe, a back main pipe, a connecting rod and a sleeve pipe; the sleeve pipe is movably sleeved on the back main pipe, and can slide to the outer part of the joint between the front and the back main pipes; and the position of the front main pipe, which is close to the connecting rod, is fixedly provided with a positioning ...

Process for preparing imidapril or its intermediate

Method for improving X-ray image quality of steel wire rope core conveyer belt

The invention discloses a method for improving the X-ray image quality of a steel wire rope core conveyer belt, which belongs to the field of non-destructive detection, and aims at solving the problems that a steel wire rope core conveyer belt X-ray image based on an X-ray array detector is provided with bright middle part and dark two sides, has stripy or isolated point noise, bad pixel tracks are caused, and the like. According to the imaging characteristics of the X-ray array detector, the specification of the steel wire rope core conveyer belt to be detected and the structural characteristics of a steel wire rope core conveyer belt non-destructive detection system based on X ray, appropriate X-ray source intensity is confirmed through experiment, the correction coefficient of each pixel of the X-ray array detector is obtained through calculation, and finally processing result is obtained through 1*3 median filtering. By adopting the method, correction and filtering on the steel wire ...

Network feedforward control method of cold rolling mill thickness control system

FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with X-ray detector for steel cord conveyor belts

The invention relates to an FPGA (Field Programmable Gate Array)-based acquisition control and signal processing apparatus with an X-ray detector for steel cord conveyor belts; the apparatus mainly comprises a photoelectric conversion control module, a signal acquisition control module and a data correction and homogenization treatment module; the photoelectric conversion control module realizes sequential control to a photoelectric conversion device so as to convert X-ray signals into electrical signals; and the data correction and homogenization treatment module realizes compensation to data deviation caused by the non-uniformity of a belt radian and a photoelectric conversion pixel; the rapid, real-time and accurate online monitoring of the X-ray detector to the steel cords of the conveyor belts can be facilitated; moreover, the control of each part of the X-ray detector and all signal treatment algorithms are realized on the basis of one FPGA, so that the whole detector has higher integration ...

SVG secondary power acquisition method

The invention discloses an SVG secondary power acquisition method. An external 380V power supply is led to a binding post of a control cabinet and is connected to the input of a UPS through a single-phase air switch, and the output of the UPS is connected to a 220V wire inlet terminal of the control cabinet. Meanwhile, the output of the UPS is led to binding posts of power units and then led to a power supplying terminal of a module control panel through an isolation transformer. By means of the SVG secondary power acquisition method, stable 220V control electricity is provided for the control cabinet through the UPS, double functions of isolation and filter are achieved, and the power supplying interference-resistant capacity is improved. A 220V power supply is provided for a power unit through the isolation transformer and the module control panel, and isolation of high voltage and low voltage is achieved. Meanwhile, the module control panel has a power-losing protection function through ...

Secondary control rolling force forecasting method of hot mill

The invention provides a secondary control rolling force forecasting method of a hot mill, which is suitable for various objects to supply material and various regulations to roll, utilizes the historical data of the rolling process to forecast the rolling force of each pass of subsequent supplied material. For the rolling of the same material and same regulation, the forecasting method is designed on the basis of the rolling result of a previous strip, i.e. the deviate of the practical outlet thickness and the set target outlet thickness of the strip last pass. In the method, thickness difference is successively distributed on each pass according to certain group of weight coefficients, and then, the adjusting amount of the rolling force of each pass is determined; deviation is eliminated by adjusting the rolling force predicted value of all passes; after adjusted for limited times, reasonable rolling force predicted value is given. The method of the invention simply and effectively solves ...

Preparation of nabumetone

Preparation of nonadhesive dressing bactericidal and hemostatic

Method for extracting modal parameter from viscous damping vibration signals

The invention discloses a method for extracting a modal parameter from viscous damping vibration signals. The method for extracting the modal parameter from the viscous damping vibration signals comprises the steps that firstly, Nyquist uniform sampling is conducted on the vibration signals; secondly, an autoregression matrix equation is established through sampled signals, the least square solution of the autoregression coefficient vector of the autoregression matrix equation is worked out, a Prony polynomial is established with all the elements of the least square solution as coefficients, and the polynomial is solved so that the solution vector of variables can be obtained; thirdly, the solution vector is corrected, and an inherent frequency vector containing a false modality and an inhehrent damping ratio vector are worked out according to the corrected solution vector; fourthly, a matrix is established with the corrected solution vector as the basis, sparse optimization solution is ...

Traditional Chinese medicine composition for treating gynecopathy and preparation method of traditional Chinese medicine composition as well as medical panty liner applying traditional Chinese medicine composition and preparation method of medical panty liner

The invention relates to a traditional Chinese medicine composition for treating gynecopathy, a preparation method of the traditional Chinese medicine composition, a medical panty liner applying the traditional Chinese medicine composition, and a preparation method of the medical panty liner. The traditional Chinese medicine composition is prepared from the following raw materials: lightyellow sophora root, tuber stemona root, natural indigo, dried alum, common cnidium fruit, belvedere fruit, amur corktree bark, red paeony root, borneol, menthol and nano-silver. All medicaments adopted by the traditional Chinese medicine composition are combined and comprehensively used, act on a human body by virtue of transdermal absorption, can be used for continuously playing a role and completely sterilizing and inhibiting bacteria, and can achieve the effects of activating blood circulation and removing blood stasis, clearing heat and detoxifying, and regulating internal secretion so as to effectively ...

Cordyceps sinensis and mushroom composition, Cordyceps sinensis and mushroom polysaccharide oral liquid, and preparation method thereof

The invention provides a cordyceps mushroom composition, comprising the following ingredients by weight portions: 130 portions to 170 portions of white radish, 130 portions to 170 portions of radish leaf, 90 portions to 110 portions of carrot, 55 portions to 65 portions of mushroom, 27 portions to 33 portions of burdock root, 13 portions to 17 portions of yam and 13 portions to 17 portions of paecilomyces bepiali chen. The invention also provides a polyose oral liquid of cordyceps mushroom, which contains water extract of the cordyceps mushroom composition. The polyose oral liquid can utilize the cordyceps mushroom composition and obtain juice by adding water and extracting. The cordyceps mushroom composition and the polyose oral liquid have very obvious effect for improving immunity of living body and even can achieve the purpose of effectively treating cancers.

Hypoglycemic health care medicine and preparation method thereof

Five-element vegetable soup grain and preparation method thereof

The invention relates to a health product with various vegetable extractives, in particular to five-element vegetable soup grains which comprise squeezed juice extractives from white turnip, white turnip leaves and carrots and extractives from poached mushroom and burdock. The invention also provides the preparation method of the five-element vegetable soup grains, which comprises the following steps: (1) extracting juice from the white turnip, the white turnip leaves and the carrots; (2) poaching mushroom to obtain mushroom extract liquid; (3) poaching burdock to obtain burdock extract liquid; (4) respectively adding the white turnip juice, the white turnip leaf juice, the carrot juice, the burdock extract liquid and the mushroom extract liquid to starch to respectively prepare white grains, green grains, red grains, yellow grains and black grains; (5) mixing the white grains, the green grains, the red grains, the yellow grains and the black grains together to prepare five-element vegetable ...

Computer interlocking system and operation method thereof

The invention discloses a computer interlocking system and an operation method thereof. The interlocking system comprises an interlocking machine, a communication gateway, a turnout execution unit, a signal execution unit and a track execution unit, wherein the turnout execution unit comprises a first action controller, a second action controller, a directional operation control ciruit, a reversed operation control circuit, a safety relay and a select switch, wherein the first action controller and the second action controller are used for controlling a group of switching tubes respectively arranged on the directional operation control circuit and the reversed operation control circuit, alternating current is input into the directional operation control circuit and the reversed operation control circuit and is controlled by the normally-open switch of the safety relay, the select switch is in communication connection with the first action controller, the second action controller and asignal ...

Sulfonated polyimide proton exchange membrane for humidity measurement

The invention relates to a sulfonated polyimide proton exchange membrane for humidity measurement. The polymer macromolecular main chain of the sulfonated polyimide proton exchange membrane consists of a plurality of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur, fluorine and the like, and the polymer macromolecule of the sulfonated polyimide proton exchange membrane is an aromatic heterocyclic polyimide polymer. The polymer main chain of the sulfonated polyimide proton exchange membrane consists of a macromolecular block containing a sulfonic group and a macromolecular block without the sulfonic group. The ratio of repeating units contained in the two blocks is n/m. In a structural formula 2, R1 is a sulfonated diamine monomer repeating unit, and R2 is a non-sulfonated diamine monomer repeating unit. The proton exchange membrane is an electrolyte thin film prepared from a polyimide high-molecular polymer. Because the proton conductivity of the electrolyte film is greatly ...

Signal execution unit of computer interlock system and working method thereof

The invention discloses a signal execution unit of a computer interlocking system and a working method thereof. The execution unit comprises a signal lamp control unit, a protective unit and a signal acquisition unit, wherein the protective unit comprises a logic protective unit and a signal safety relay; the logic protective unit receives first signal state information and second signal state information which is output by a first signal controller and a second controller respectively and represents the working state of each signal lamp control unit; the first and second signal controllers and the logic protective unit receive system feedback information acquired by the signal acquisition unit; the logic protective unit performs logical comparison on the first and second signal state information and the system feedback information through hardware, and outputs a signal lamp abnormal signal for controlling the signal safety relay according to a comparison result; and under the condition ...

Taper shank automatic clamping device

The invention discloses a taper shank automatic clamping device. The taper shank automatic clamping device comprises an air cylinder, a push rod, a main shaft, a front cover and a spring clamp sleeve, wherein the air cylinder comprises a cylinder body and an ejection rod, the ejection rod is provided with an axial through hole, the push rod is arranged inside the axial through hole of the ejection rod, the main shaft is a hollow shaft, the ejection rod is arranged inside the main shaft, the head end of the ejection rod is fixedly connected with a locking sleeve, a taper hole is formed in the head end of the locking sleeve, a front cover is arranged at the head end of the main shaft, a taper hole is formed in the inner side face of the front cover, the spring clamp sleeve is arranged inside the main shaft and located between the front cover and the locking sleeve, two end surfaces of the spring clamp sleeve are provided with taper faces respectively matched with the locking sleeve taper ...

Cordyceps sinensis and mushroom composition, Cordyceps sinensis and mushroom polysaccharide oral liquid, and preparation method thereof

The invention provides a cordyceps mushroom composition, comprising the following ingredients by weight portions: 130 portions to 170 portions of white radish, 130 portions to 170 portions of radish leaf, 90 portions to 110 portions of carrot, 55 portions to 65 portions of mushroom, 27 portions to 33 portions of burdock root, 13 portions to 17 portions of yam and 13 portions to 17 portions of paecilomyces bepiali chen. The invention also provides a polyose oral liquid of cordyceps mushroom, which contains water extract of the cordyceps mushroom composition. The polyose oral liquid can utilizethe cordyceps mushroom composition and obtain juice by adding water and extracting. The cordyceps mushroom composition and the polyose oral liquid have very obvious effect for improving immunity of living body and even can achieve the purpose of effectively treating cancers.

Modified tapered roller ball base face curvature radius's grinding machine

The utility model discloses a modified tapered roller ball base face curvature radius's grinding machine, this grinding machine include lathe bed portion, grinding carriage portion, right guide pulley portion, left guide pulley portion, frock portion, be equipped with the emery wheel in the grinding carriage portion, right guide pulley portion is equipped with right guide pulley axle, driven shaft, be equipped with left guide pulley axle in the guide pulley portion of a left side, be equipped with left blade disc seat, left blade disc, separator, right blade disc in the frock portion, be equipped with curved spout in the lathe bed portion, grinding carriage portion slides along the arc spout. Owing to adopt above -mentioned structure, when grinding tapered roller ball base face, realized curvature radius continuously adjustable nature, changed the limitation with the how big curvature radius's of how large diameter separator grinding roller ball base face, when the big curvature radius's ...

Proton exchange membrane fuel cell flow channel

The invention discloses a proton exchange membrane fuel cell flow channel. The proton exchange membrane fuel cell flow channel comprises at least one branch flow channel, wherein a plurality of geometric partition structures with variable contact angles are arranged on the flow channel wall of each branch flow channel in the flow direction of gas and the water drainage direction, and the contact angles of the geometric partition structures with the variable contact angles are reduced sequentially from each branch flow channel inlet to the corresponding branch flow channel outlet. The proton exchange membrane fuel cell flow channel has the advantages of being simple in structure, easy to process and low in cost; due to the fact that the contact angle gradual change structures of different partition areas are arranged in the flow direction of the gas, the contact angles in each branch flow channel are reduced sequentially from the corresponding inlet to the corresponding outlet, the hydrophilicity ...

POLYMERS WITH SILICON-CONTAINING STRUCTURAL UNITS AND COATING COMPOSITIONS INCLUDING THESE POLYMERS

A polymer and a coating composition comprising the polymer are provided. The polymer has the formula R 11 QR 12 , wherein R 11 and R 12 are H, OH or an organic group, and Q represents [—P—] N — Moiety P, at each occurrence is, independently, A 1 , A 2 or R 13 , and Q has at least two A 1 units and at least two A 2 units. A 1 has structural formula (1a), A 2 has structural formula (1b) and R 13 is a divalent organic group. In structures (1a) and (1b) radicals R 1 and R 6 are H or an organic group and R 2 -R 10 represent organic groups. A coating composition comprising the polymer and articles coated with the composition are also disclosed.

Knapsack carrying-frame

The invention discloses a multifunctional knapsack rack, which comprises two rack levers of which the left side and the right side are parallel with each other and support cloth arranged between the two rack levers, both sides of the back surface of the back part of the support cloth are provided with nylon adhesive tapes, both sides of the back surface of the front part of the support cloth are connected with binding pieces of which outer sides are also provided with nylon adhesive tapes, ring sleeves are symmetrically fixed on two side edges of the support cloth, and the ring sleeves are sleeved in the corresponding rack levers; each rack lever comprises a front main pipe, a back main pipe, a connecting rod and a sleeve pipe; the sleeve pipe is movably sleeved on the back main pipe, andcan slide to the outer part of the joint between the front and the back main pipes; and the position of the front main pipe, which is close to the connecting rod, is fixedly provided with a positioning ...

Sanitary writing liquid

This sanitary writing liquid is prepared with modified alcohol, Plexol 201, ethyl cellulose and pigment through proportionally mixing and grinding. Its particles after grinding are less than 1 micrometer. The writing liquid features no deposition, smooth writing, easy erasing and no dust, and may replace chalk or used to write on board.

Signal execution unit of computer interlock system and working method thereof

The invention discloses a signal execution unit of a computer interlocking system and a working method thereof. The execution unit comprises a signal lamp control unit, a protective unit and a signal acquisition unit, wherein the protective unit comprises a logic protective unit and a signal safety relay; the logic protective unit receives first signal state information and second signal state information which is output by a first signal controller and a second controller respectively and represents the working state of each signal lamp control unit; the first and second signal controllers and the logic protective unit receive system feedback information acquired by the signal acquisition unit; the logic protective unit performs logical comparison on the first and second signal state information and the system feedback information through hardware, and outputs a signal lamp abnormal signal for controlling the signal safety relay according to a comparison result; and under the condition ...

Computer interlocking system and operation method thereof

The invention discloses a computer interlocking system and an operation method thereof. The interlocking system comprises an interlocking machine, a communication gateway, a turnout execution unit, a signal execution unit and a track execution unit, wherein the turnout execution unit comprises a first action controller, a second action controller, a directional operation control ciruit, a reversed operation control circuit, a safety relay and a select switch, wherein the first action controller and the second action controller are used for controlling a group of switching tubes respectively arranged on the directional operation control circuit and the reversed operation control circuit, alternating current is input into the directional operation control circuit and the reversed operation control circuit and is controlled by the normally-open switch of the safety relay, the select switch is in communication connection with the first action controller, the second action controller and a signal ...

Network feedback control method of cold rolling mill thickness control system

The invention provides a network feedback control method for a thickness control system of a cold rolling mill; a thickness tester sends the outlet thickness value of the belt material measured through the Ethernet communication interface to the Ethernet network; the controller receives the thickness value through the Ethernet communication interface from network, calculating the control algorithm, sending the controlled variable to the servo valve, driving the hydraulic pressure screw down the cylinder, completing a calculation of the control circuit; the thickness tester sends the outlet thickness value of the belt material in sequence, the controller receives the thickness value data in sequence, processing calculation, completing thickness controlling process of the cold rolling mill. The invention has the advantages of converting the analog transmission to the digital transmission of the thickness feedback channel through the Ethernet, greatly increasing the control precision and anti-interference ...

Tooling block taking device

The invention discloses a tooling block taking device, which relates to the technical field of welding equipment and is designed so as to solve the problems of manual operation, high labor cost, poor reliability and the like of an existing tooling block taking device. The tooling block taking device comprises a fixed bracket, a translation device, a lifting device and a tooling block grasping and releasing assembly, wherein the fixed bracket is used for installing the tooling block taking device; the tooling block grasping and releasing assembly is used for grasping and releasing a tooling block; the translation device is used for translating the tooling block grasping and releasing assembly between a first position and a second position; the lifting device is used for lowering the tooling block grasping and releasing assembly so as to grasp the tooling block when the tooling block moves to the tooling block grasping and releasing assembly and then lifting the tooling block grasping and ...

Process setting method for single-frame double-coiling aluminium hot-rolling mill

The invention provides a process setting method of a single-stand aluminum hot rolling mill with two coilers. A corresponding rolling schedule setting model is established according to the technical features of the single-stand aluminum hot rolling with two coilers; the rolling schedule setting model program is complied into a dynamic link library; a memory sharing manner is adopted to the data sharing of each setting model program; WINCC is adopted as an invoking platform in all programs of the dynamic link library; the WINCC and basic automatic grade adopt Ethernet communication, have the functions of data collection, setting program invoking, setting model self-studying, rolling line tracing, and the like and realize the automatic setting and online modification of the schedule of single-stand aluminum hot rolling. The method obviously increases the quality precision such as thickness, convexity, and the like of aluminum hot rolling strip coilers and adequately ensures the stability ...

Forestry seedling cultivation fixing device

The utility model discloses a forestry seedling cultivation fixing device which comprises a first supporting ring plate and a second supporting ring plate, the edge of the back face of the first supporting ring plate is fixedly connected with a hinge piece, and the side face of the hinge piece is hinged to the edge of the back face of the second supporting ring plate. According to the forestry seedling cultivation fixing device, the outward jacking height of a jacking pipe is adjusted by closing a first supporting ring plate and a second supporting ring plate, sliding displacement between an arc-shaped positioning plate and a stable positioning sleeve, threaded displacement of a knob cap pipe on the jacking pipe and jacking of a supporting cylinder on the knob cap pipe; the semi-arc-shaped supporting sleeves on the two sides are driven to move towards the inner side according to the thread propelling principle between the propelling rod and the stable supporting base, so that the effect ...

Rolling procedure making method of aluminium single-stand cold-rolling machine

The invention relates to a rolling procedure making method of an aluminium single-stand cold-rolling machine, in rolling specification obtained by a rolling specification library according to the rolling material and specification, four system parameters are included to be suitable for the characteristics of rolling process of an aluminium single stand, and annealing, thickness, tensile force andspeed parameters in each pass can be respectively determined; the rolling specification is formed by a pass programming system, a thickness distribution system, a speed distribution system and a tensile distribution system, the specification of the rolling material carries out rolling procedure making by obtaining the rolling specification by the rolling specification library, so as to realize automatic generation of the rolling procedures of different materials with different width and thickness specifications in the production process of the aluminium single-stand cold-rolling machine and carry ...

Variable-flow injection valve for rolled oil

Preparation of nonadhesive dressing bactericidal and hemostatic

A method for making antibacterial and staltic medical compress without adhesion to wound includes such steps as immersing absorbent gauze in acid for degradation, graft etherifying reaction, neutralization, washing, immersing in antibacterial agent and baking. Its advantages include greatly increasing the water absorption as its cotton fibres are modified, easy separation from wound as a gel-typetransition layer is formed between the compress and wound, and preventing infection of wound.

Blisk electrolytic machining modular clamp and machining method

The invention provides a modular fixture for electrolytic machining of a blisk and a machining method, and belongs to the technical field of electrolytic machining. A modular structure design which is different from a traditional clamp integrated structure design and can be quickly disassembled and assembled is adopted. The device mainly comprises a cathode fixing module, a bearing module and a clamping module. According to different machining angles, the relative position of the bearing module and the cathode fixing module is adjusted to drive the workpiece to rotate around the Y axis to different angles so as to seek a smaller blade shielding angle; by designing and adjusting the sub-module characteristics of the clamping module, blisk with different sizes and specifications can be clamped and fixed on the premise that the repeated positioning precision of a workpiece is guaranteed. The modular structure is characterized in that only the corresponding module needs to be changed to change ...

Convexity measuring device using X-ray

Spiral cut milling cutter with convex shoulder

The invention discloses a spiral cut milling cutter with a convex shoulder. The spiral cut milling cutter comprises a cutting part and a cutter handle, wherein a tooth profile of the cutting part is composed of a front blade surface, a rear blade surface, a tooth back and a groove; the convex shoulder is arranged on a connection between the rear blade surface and the tooth back. The milling cutter with the structure has a consistent land width, high tooth profile strength and stable cutting.

Method for preparing pregabalin intermediate 3-isobutylglutaric acid

The invention provides a route and method for synthesizing a pregabalin intermediate 3-isobutylglutaric acid, which is characterized by comprising the following steps of: directly performing substitution on a compound in a formula (3a) serving as a raw material and malonic ester to obtain a compound in a formula (4), or performing elimination reaction on the compound in the formula (3a) serving as the raw material to obtain a compound in a formula (3b) and performing addition reaction to obtain the compound in the formula (4); and performing hydrolysis and decarboxylation to obtain a target compound in a formula (5). The method is easy to operate, mild in reaction conditions, low in cost and suitable for large-scale industrial production.

Coating composition

A coating composition is provided comprising a hydrophilic characteristic-effecting material compound. The production of the hydrophilic characteristic-effecting material compound is effected by admixing of operative starting materials. The operative starting materials include a superwetter material and an adhesion promoting agent material. The hydrophilic characteristic-effecting material compound includes a superwetter material-derived coating composition material fraction and an adhesion promoting agent material-derived material fraction. The adhesion promoting agent material-derived coating composition material fraction is configured for interacting with a substrate such that, in response to, at least, contacting between the coating composition and the substrate, adhesion of an operative surface material to the substrate is effected.

一种再制造电机转子轴承拆解装置

本实用新型公开了一种再制造电机转子轴承拆解装置，其包括底座、用于推动转子轴杆的压顶油缸和阻挡轴承移动的轴承阻挡机构。压顶油缸活塞杆上可拆卸地设有顶头。压顶油缸立式固定在底座上，轴承阻挡机构设置在压顶油缸下方，或者压顶油缸卧式固定在底座上，轴承阻挡机构设置在压顶油缸设有顶头的一侧。本实用新型结构简单，制作成本低，操作方便快捷，工作效率大大提高，适于推广应用。