Rubber-covered roller surface plate brushing device

The invention discloses a rubber-covered roller surface plate brushing device, which comprises a frame and at least one long-strip supporting component for supporting rubber-covered rollers, wherein the supporting component is fixedly connected to the interior of the frame; a plurality of grooves are formed at the same height in the height direction in the upper surface of the supporting component. According to the device, the grooves are formed in the upper surface of the supporting component, and the rubber-covered rollers to be treated in a number the same as that of the grooves can be placed during actual use, so that a plurality of rubber-covered rollers to be treated can be chemically treated at one time, and the chemical coating treatment efficiency of the rubber-covered rollers is remarkably improved.

Method for preparing vanadium nitride alloy

The invention relates to a method for preparing vanadium nitride alloy. The technical scheme of the invention is as follows: the method comprises the steps: by taking powdery vanadium pentoxide and carbon black as raw materials, mixing powdery vanadium pentoxide and carbon black according to the mass ratio of 1: (0.33-0.35), adding water accounting for 4-6wt% of the raw materials, mixing uniformly, forming auto-reduction spheres through pressing, loading the auto-reduction spheres to an electric heating furnace, heating to the temperature of 620-650 DEG C in a nitrogen gas atmosphere, and carrying out heat preservation for 1.5-2.5 hours; then, heating to the temperature of 1250-1300 DEG C, carrying out heat preservation for 2-3 hours, and carrying out furnace cooling; finally, crushing tapped vanadium nitride, adding a 4% polyvinyl-alcohol aqueous solution, which accounts for 2-3wt% of the raw materials, after crushing, stirring and mixing uniformly, and forming spheres by using a strong ...

Blind hole cleaning tool

The invention discloses a blind hole cleaning tool. The blind hole cleaning comprises a straight shank twist drill and a handle. The straight shank twist drill is mounted in a sleeve mode into a hole formed in the middle of the handle and connected in a fastened mode to form a T-shaped structure. The blind hole cleaning tool is characterized in that the straight shank twist drill is provided with two axial through holes which are not communicated with each other, including an air vent and an oil vent, and the upper end of the through hole is provided with a connecting joint. The blind hole cleaning tool is further characterized in that the head portion of the straight shank twist drill is planed. The blind hole cleaning tool can thoroughly clean oily dirt inside blind holes and effectively improve the working efficiency of repair and maintenance.

Method for improving homogeneity of steel structure and equipment thereof

The invention relates to a method for improving the homogeneity of steel structure and equipment used thereby. The method comprises the steps of casting, crystallization, drawing, secondary cooling, drawing and straightening and cutting and a step of cutting a cast ingot blank by using a cutting saw along the central line of a cross section to divide the cross section of the ingot blank into equal parts, namely an added step of sawing along the central cross section of the ingot blank in casting production. The equipment comprises a steel barrel, an intermediate ladle under the water opening of the steel barrel, a crystallizer under the water opening of the intermediate ladle, a secondary cooling device under the crystallizer, a drawing and straightening roll, a bending roll and a strengthening roll, wherein the flame cutting machine is arranged in the outlet direction of the straightening roll; the cutting saw is also arranged in the outlet direction of the straightening roll; and the ...

Carding machine cover plate cleaning device with adjustable card strippers

The invention discloses a carding machine cover plate cleaning device with adjustable card strippers. The carding machine cover plate cleaning device is arranged on one side of teeth of a cover plate and comprises a card stripping roll and at least two rows of bristles arranged on the outer wall of the card stripping roll. The carding machine cover plate cleaning device is characterized in that at least one row of clubfoot card stripper cloth is also arranged on the outer wall of the card stripping roll; the clubfoot card stripper cloth comprises the card strippers; and the carding machine cover plate cleaning device also comprises a card stripper adjusting structure which adjusts the depths of the card strippers which are inserted in teeth of the cover plate. The rows of clubfoot card stripper cloth are arranged on the outer wall of the card stripping roll, the depths of the card strippers which are inserted in teeth of the cover plate can be adjusted through the card stripper adjusting ...

Production method of high-carbon steel wire capable of improving draw ductility

The invention relates to a production method for high-carbon steel wire capable of improving draw ductility, which solves the disadvantages of the network cementite existing currently such as precipitation and the like. The procedure is a production method of high-carbon steel wire capable of improving draw ductility, and the steps are as follows: high-carbon steel wire continuous casting after smelting is heated to a crystal region temperature of 900 to 1000 DEG C; rough rolling is carried out at the temperature of 900 to 1045 DEG C; precision rolling is carried out at a beginning temperature of 800 to 950 DEG and a finishing temperature of 850 to 1000 DEG C; sizing processing is carried out at a beginning temperature of 900 to 1050 DEG C; after cooling through water, spinning is carriedout at a temperature of 850 to 950 DEG C; wind cooling is carried out, and the cooling speed at the temperature of 600 to 950 DEG C is controlled to be 12 to 30 DEG C per second. The method can control ...

Combined-type drawing frame press bar adjusting ring

The invention discloses a combined-type drawing frame press bar adjusting ring comprising a central hole in the center and a work face on the outer wall. The work face is composed of multiple arcs which have different diameters and which adopt the center of the central hole as the center of circles. The combined-type drawing frame press bar adjusting ring is further optimized in that the arc angles of the arcs are equal. During usage, the adjusting ring is free of changing but can be rotated to the required working face according to different heights of the positions of drawing frame press bars; thus, the positions of the drawing frame press bars in different heights can be adjusted rapidly, assisting time is shortened, and production efficiency is improved.

High-carbon steel wire for superfine steel wire and manufacturing method thereof

The invention discloses a high carbon steel wire used for an ultrathin steel wire and a manufacturing method thereof. The wire has the following compositions in terms of weight percentage: 0.60 to 1.2 of C, 0.10 to 0.50 of Si, 0.01 to 0.60 of Mn, no more than 0.020 of P, no more than 0.020 of S, no more than 0.002 of Ti, no more than 0.005 of Al, no more than 0.006 of N and Fe and the balance of inevitable impurities. The manufacturing method comprises the following steps: smelting, molten iron desulfurisation and converter top and bottom blowing are carried out by adopting an ultrapure steeltechnique, ladle argon blowing refining and external refining are carried out by adopting low-alkalinity steel slag with 0.5 to 1.6 of CaO/SiO2; square billet is formed by casting; austenitizing withthe temperature of 750 DEG C to 850 DEG C is carried out on the square billet by using a heating furnace; control rolling and control cooling treatment is carried out on the high speed wire; the rolling ...

Magnesite concrete

The invention discloses a magnesite concrete which is prepared from the following raw materials in parts by weight: 50-60 parts of magnesite, 320-400 parts of ordinary Portland cement, 6-10 parts of bentonite, 10-20 parts of coal gangue, 5-8 parts of novel water reducing agent, 3-5 parts of rosin, 500-600 parts of river sand, 3-4 parts of magnesium chloride, 30-50 parts of blast-furnace cinder, 5-10 parts of dry carbide slag, 1-2 parts of sodium lauroyl sarcosine, 3-5 parts of bone coal, 170-200 parts of water, 3-5 parts of glass powder, 1-2 parts of ferrous sulfate, 4-6 parts of calcium phosphate, 1000-1100 parts of limestone rubble, 1-1.6 parts of air entraining agent and 1-2 parts of ethylenediamine tetraacetic acid. After the magnesite is mixed in the magnesium chloride solution and mixed with the solution a, the hardness and surface water resistance are effectively enhanced. The concrete has the advantages of high overall quality, high wear resistance, high impact resistance, high ...

Drahtstahl for high strength fastening piece and production method thereof

The invention relates to a drahtstahl for a fastening piece and a production method thereof, and the drahtstahl comprises the following components by weight percent: 0.39-0.48 % of C, 0.15-0.35% of Si, 0.30-0.90% of Mn, 0.60-1.20% of Cr, 0.010-0.07% of Als, less than or equal to 0.035% of P, less than or equal to 0.035% of S and the balance Fe and unavoidable impurity; and the production method comprises the following steps: smelting with a clean steel process and casting into a blank, and adding Si-Ca line in the refining; heating the continuous casting to 980-1,080 DEG C; rough rolling: controlling the deflection to be 70-80%; intermediate rolling: controlling the deflection to be 80-90%; pre-precision rolling: controlling the deflection to be 65-75%; water-cooling until the temperature is cooled to be 1,000-1,020 DEG C; precision rolling: controlling the deflection to be 60-90%; water-cooling for the second time until the temperature is cooled to be 800-900 DEG C; spinning; cooling to ...

High-carbon steel wire for superfine steel wire and manufacturing method thereof

The invention discloses a high carbon steel wire used for an ultrathin steel wire and a manufacturing method thereof. The wire has the following compositions in terms of weight percentage: 0.60 to 1.2 of C, 0.10 to 0.50 of Si, 0.01 to 0.60 of Mn, no more than 0.020 of P, no more than 0.020 of S, no more than 0.002 of Ti, no more than 0.005 of Al, no more than 0.006 of N and Fe and the balance of inevitable impurities. The manufacturing method comprises the following steps: smelting, molten iron desulfurisation and converter top and bottom blowing are carried out by adopting an ultrapure steel technique, ladle argon blowing refining and external refining are carried out by adopting low-alkalinity steel slag with 0.5 to 1.6 of CaO/SiO2; square billet is formed by casting; austenitizing with the temperature of 750 DEG C to 850 DEG C is carried out on the square billet by using a heating furnace; control rolling and control cooling treatment is carried out on the high speed wire; the rolling ...

Dual-purpose device for air drafting and cleaning of sliver lap machine

The invention discloses a dual-purpose device for air drafting and cleaning of a sliver lap machine. The dual-purpose device for the air drafting and cleaning of the silver lap machine comprises an air drafting box housing, an air drafting box, a pipeline and a filter screen; the air drafting box is arranged in the air drafting box housing; one end of the pipeline communicates with a dust collector unit, and while the other end of the pipeline communicates with an exhaust pipe at the upper part of the air drafting box housing; the filter screen is arranged at a lower end opening of the exhaust pipe. The dual-purpose device for the air drafting and cleaning of the silver lap machine is characterized in that a convex ring is arranged in the periphery of the outer wall of the lower end port of the exhaust pipe; an elastic ring is arranged in the periphery of the filter screen and elastically wraps a convex ring; the section of the convex ring is semicircular. With the adoption of the dual-purpose ...

Method for measuring electric conductivity of wire for copper-clad steel

The invention relates to a method for measuring the electric conductivity of a wire for copper-clad steel. The method comprises the following steps: (1) placing the wire for the copper-clad steel at constant temperature T, measuring the resistance R of the wire for the copper-clad steel, measuring cross sectional area S along the length direction of the wire for the copper-clad steel, measuring the lengths L (m) of two potential ends of the wire for the copper-clad steel, and calculating the actual measurement resistivity rho and the actual measurement electric conductivity of the wire for the copper-clad steel at the temperature T; (2) setting an environment temperature correction coefficient K as R20/RT, and drawing a linear relation between the environment temperature correction coefficient K and the temperature T; (3) determining the ratio of the actual measurement electric conductivity to the environment temperature correction coefficient K as the electric conductivity of the wire ...

Stelmor cooling control technique

The invention relates to a stelmor cooling control technique comprising a wind cooling process and a water cooling process. In the water cooling process, in at least one water cooling section, each water-spraying nozzle sprays water to the wires walking on a cooling roller table at the spraying angle of 15-25 degrees in the alternating arrangement way of 85-95 degrees, wherein the spraying angle is the angle between a water-spraying nozzle axis and a wire walking direction; and in the wind cooling process, a wind-blowing nozzle blows wind to the wires walking on a cooling roller table from thedirections of up and down, left and right, of the cooling roller table. The stelmor cooling control technique can effectively destroy the cooling state of a film on the surface of a steel bar, form anuclear cooling state of directly contacting with the steel, can reduce or suppress the precipitation of reticular tissues, and ensures that the main control tissue is a homogeneous sorbite tissue, so as ...

Cold region used antifreezing concrete

The invention discloses cold region used antifreezing concrete which comprises the following raw materials in parts by weight: 1-2 parts of polylactic acid fiber, 300-400 parts of ordinary Portland cement, 900-1000 parts of limestone gravel, 60-70 parts of coal ash, 4-5 parts of a novel water reducer, 50-60 parts of red mud, 300-400 parts of river sand, 30-40 parts of black sand, 40-60 parts of furnace dust, 3-5 parts of calcium propionate, 30-40 parts of dihydrate gypsum powder, 0.8-1 part of stearic acid, ethylene ester, 3-5 parts of magnesium hydroxide sulfate whiskers, 170-200 parts of water, 1-2 parts of sodium carboxymethylcellulose, 40-50 parts of mineral powder and 1-1.5 parts of an air entraining agent. The cold region used antifreezing concrete is uniform, stable and sealed, prevents capillary channel formation, alleviates expansion pressure generated by freezing of free water and effectively improves the antifreezing property; the added magnesium hydroxide sulfate whisker and ...

Special bobbin for roving frame test

The invention discloses a special bobbin for a roving frame test. The special bobbin for the roving frame test comprises a bobbin pipe body, a bobbin pipe head and two semicircular ring sleeves; the bobbin head is in threaded connection to the upper end of the bobbin body; the semicircular ring sleeves are mounted in axial ring slots in the upper end of the bobbin body, and the length of the semicircular ring sleeves is more than the axial depth of the axial ring slots in the upper end of the bobbin body; when the bobbin head is in threaded connection to the upper end of the bobbin body, the bobbin head is pressed on the upper end surfaces of the semicircular ring sleeves; the threaded connection length of the bobbin body and the bobbin head is 2 to 5mm more than the axial length of the axial ring slots in the upper end of the bobbin body. The special bobbin for the roving frame test is characterized in that the bobbin body connected with the bobbin head through leftward spiral threads; ...

Carding machine sliver guide wheel device with fan blades

The invention discloses a carding machine sliver guide wheel device with fan blades. The carding machine sliver guide wheel device comprises sliver guide wheels. The end face of each sliver guide wheel is provided with fan blades. According to further modification, the fan blades are disposed on the periphery of the end face of each sliver guide wheel. When the carding machine sliver guide wheel device is in use, the sliver guide wheels drive the end fan blades to rotate, the fan blades produce wind force to blow off fiber piles accumulating at a coiler or near a bell mouth, the fiber piles are prevented from being brought into raw slivers, the quality of the raw slivers is stabilized, and labor of clearing the fiber piles is relieved for knitters.

Production method of high-carbon steel wire capable of improving draw ductility

The invention relates to a production method for high-carbon steel wire capable of improving draw ductility, which solves the disadvantages of the network cementite existing currently such as precipitation and the like. The procedure is a production method of high-carbon steel wire capable of improving draw ductility, and the steps are as follows: high-carbon steel wire continuous casting after smelting is heated to a crystal region temperature of 900 to 1000 DEG C; rough rolling is carried out at the temperature of 900 to 1045 DEG C; precision rolling is carried out at a beginning temperature of 800 to 950 DEG and a finishing temperature of 850 to 1000 DEG C; sizing processing is carried out at a beginning temperature of 900 to 1050 DEG C; after cooling through water, spinning is carried out at a temperature of 850 to 950 DEG C; wind cooling is carried out, and the cooling speed at the temperature of 600 to 950 DEG C is controlled to be 12 to 30 DEG C per second. The method can control ...

Inspection and appraisement method for cementite in high-carbon steel wire bar

The invention relates to a method for inspecting steel material quality, particularly to a method for inspecting and evaluating cementite in a high-carbon steel wire rod. The method comprises the steps of preparing sodium hydroxide, trinitrophenol and trinitroacid into erosion liquid by the weight ratio of (10-20):1:1; heating the sample of the high-carbon steel wire rod to 20-100DEG C for more than 3 min; subjecting the heated sample to hot etching and conducting observation under a microscope. Cementite network is black, and ferrite network and the other organizations are not stained. Under the microscope, the crystal boundary cementite in the sample can be clearly inspected.

Easily-cut copper-niobium composite steel and production method thereof

The invention relates to easily-cut copper-niobium composite steel. The easily-cut copper-niobium composite steel contains the ingredients in percentage by weight (wt%): 0-0.10% of C, 0-0.05% of Si, 0.65-1.35% of Mn, 0.04-0.09% of P, 0.20-0.40% of S, 0.10-0.50% of Cu and 0.05-0.20% of Nb. A production method comprises the production steps of carrying out converter steelmaking; heating casting blanks; carrying out heat preservation on the casting blanks for 120-300 minutes; carrying out hot-rolling; slowly cooling; cooling to room temperature by air. According to the easily-cut copper-niobium composite steel and the production method thereof, the inclusion distribution of manganese sulfide is more dispersed, the length-width ratio is smaller, and the steel is of a spindle shape which is easy to cut; a continuous casting nozzle is difficult to jam, and the rolling can not skid, so that the cutting performance is further improved; meanwhile, the lives of easily-cut steel parts can be effectively ...

Niobium, vanadium composite micro-alloying low-carbon boron steel for cold heading and production method thereof

Niobium-vanadium microalloyed low-carbon boron steel used for cold heading and a preparation method thereof pertain to steel smelting and material field. In order to solves the problems of low standard grade, high production cost and poor product quality of the existing low-carbon boron steel products, the niobium-vanadium microalloyed low-carbon boron steel of the invention comprises the components according to certain weight proportion: 0.18-0.24 of C, 0.80-1.2 of Mn, 0.01-0.03 of Ti, 0.001-0.003 of B, 0.02-0.08 of Nb, 0.02-0.08 of V, 0.01-0.05 of Als, Si is less than 0.20, P is less than 0.03 and S is less than 0.03, the rest is Fe. The process method comprises the technique process in sequence under specific technology parameters: smelting by a converter or an electric furnace; fine smelting by an LF furnace; continuous casting; heating; rolling, controlled cooling. The invention utilizes the compound microalloyed function of niobium and vanadium and ensures the comprehensive performance ...

Square billet surface descaling device

The utility model discloses a square billet surface descaling device, it sprays the facility including setting up at pending square billet water under high pressure on every side, is located the water under high pressure sprays and still is provided with a plurality of iron brushes in the frame in facility the place ahead, every iron brush all links to each other and receives electromotor drive with motor equipment. It can thoroughly clear away the forge scale on square billet surface before the steel billet gets into the roughing mill. This square billet surface descaling device's of while simple structure, low cost.

High speed wire rod anti-false-alarm folding defect monitoring device

The invention discloses a high speed wire rod anti-false-alarm folding defect monitoring device which is mounted between a front rolling mill and rear rolling mill on a high speed wire rod production line and which comprises a first wire rod width measuring mechanism and a first wire rod height measuring mechanism which are arranged at the outlet of the front rolling mill, and a second wire rod width measuring mechanism and a second wire rod height measuring mechanism which are arranged at the inlet of the rear rolling mill. The first wire rod width measuring mechanism is perpendicular to the axis of a roller of the front rolling mill, the first wire rod height measuring mechanism is parallel to the axis of the roller of the front rolling mill, the second wire rod width measuring mechanism is perpendicular to the axis of a roller of the rear rolling mill, and the second wire rod height measuring mechanism is parallel to the axis of the roller of the rear rolling mill. By the aid of the ...

Stelmor cooling control technique

The invention relates to a stelmor cooling control technique comprising a wind cooling process and a water cooling process. In the water cooling process, in at least one water cooling section, each water-spraying nozzle sprays water to the wires walking on a cooling roller table at the spraying angle of 15-25 degrees in the alternating arrangement way of 85-95 degrees, wherein the spraying angle is the angle between a water-spraying nozzle axis and a wire walking direction; and in the wind cooling process, a wind-blowing nozzle blows wind to the wires walking on a cooling roller table from the directions of up and down, left and right, of the cooling roller table. The stelmor cooling control technique can effectively destroy the cooling state of a film on the surface of a steel bar, form a nuclear cooling state of directly contacting with the steel, can reduce or suppress the precipitation of reticular tissues, and ensures that the main control tissue is a homogeneous sorbite tissue, so ...

Notch type rough yarn horn mouth

The invention discloses a notch type rough yarn horn mouth. The notch type rough yarn horn mouth comprises an oxhorn-shaped bent barrel, wherein the cross section of the barrel is gradually reduced from an inlet end to an outlet end; and a notch is formed in the outlet end and below a center line of the barrel. The notch type rough yarn horn mouth is characterized in that the included angle alpha between the plane of the notch and the plane of the outlet end is 45 degrees to 75 degrees, and the initial position of the upper end of the notch is located below the center line and between the center line and the 1/3 diameter of the outlet end. The notch is formed in the outlet end and below the center line of the barrel, when rough yarns are guided in a spun yarn drafting area via the notch type rough yarn horn mouth, an outlet of the rough yarn horn mouth cannot be blocked by the rough yarns even if the rough yarns have defects, uneven yarns with long fragments cannot be generated, and the ...

Method for producing wire and bar materials

The invention relates to a method for producing wire and bar materials, which sequentially comprises the steps of smelting, secondary refining, square billet continuous casting, heavy forcing down, rolling and controlled cooling, and finished product collecting and coiling. The method adopts a heavy forcing down process to save the steps of casting blank stacking slow cooling, square billet downward delivery and square billet heating after the step of the square billet continuous casting, and organically compresses and combines a past steel plant with a past high-wire plant or bar material plant to form a short-flow production method of the wire and bar materials and greatly reduce the energy source consumption; besides, the production cost is far lower than that of the conventional long-flow process and is more lower than that of an overlong-flow process with secondary fire material formation, the benefit advantages are obvious, and the quality in producing high-carbon wire and bar materials ...

Detaching roller cleaning doctor blade of combing machine

The invention discloses a detaching roller cleaning doctor blade of a combing machine. The detaching roller cleaning doctor blade of the combing machine is characterized in that the detaching roller cleaning doctor blade of the combing machine is manufactured in a mode that iron sheets are embedded in polyurethane elastic material. The detaching roller cleaning doctor blade of the combing machine is good in elasticity, resistant to abrasion, not prone to deformation and long in service life.

Generation device for card sliver with laid-in colored rove

The invention discloses a generation device for a card sliver with laid-in colored rove. The device comprises a carding machine coiler and a colored rove spindle hoisting device. The carding machine coiler comprises a support and a roller. The roller is arranged on the upper end face of the support. The card silver generated through carding is borne on the roller. The colored rove spindle hoisting device comprises a rove hoisting spindle and a bracket. The bracket is fixedly connected to the upper end face of the support and comprises a horizontally-arranged top plate and a vertically-arranged side plate. The rove hoisting spindle is hoisted at the lower end of the top plate of the bracket. The rove hoisting spindle is sleeved with a colored rove spindle. According to a further improvement, a second sensing device is arranged on the side face of the side plate of the support. According to the structure, a first sensing device is arranged on the side face of the side plate of thebracket.

Anti-crack concrete

The invention discloses anti-crack concrete which comprises the following raw materials in parts by weight: 300-400 parts of ordinary Portland cement, 700-800 parts of crushed stone, 500-600 parts of river sand, 200-300 parts of mica powder, 3-5 parts of a novel water reducing agent, 30-40 parts of rice hull powder, 100-200 parts of furnace dust, 3-4 parts of calcium stearate, 6-10 parts of nano silica, 3-4 parts of aluminum dihydrogen phosphate, 6-10 parts of polypropylene powder, 2-3 parts of metaboric acid, 20-30 parts of calcined conch shell powder and 160-200 parts of water. According to the anti-crack concrete, since the novel water reducing agent is added, the flowability of the concrete is improved, a water reducing effect is enhanced, and freeze-thaw resistance of the concrete is improved; since the polypropylene powder, the furnace dust and an aluminum adhesive solution are mixed, dispersity of the polypropylene powder and the furnace dust in slurry is improved, and toughness, ...

Bobbin of light lap former

The invention discloses a bobbin of a light lap former. The bobbin of the light lap former consists of a bobbin body and end caps, wherein the end caps are formed at two ends of the bobbin body; the bobbin body is separated from the end caps; the inner wall of the bobbin body is in clearance fit with the outer walls, which extend in the bobbin body, of the end caps; and the bobbin body is an MC nylon tube. The bobbin of the light lap former is characterized in that a conductive ring groove is formed in the inner wall of an end of the bobbin body; the inner diameter of the bobbin body is phi 80mm; and the end caps are made of number 45 steel and are fixedly connected to the center of a twisting plate via screws. The bobbin cannot be oxidized; the bobbin body is high in impact resistance and high in wear resistance; the end caps cannot be easily separated from the bobbin and are high in wear resistance; and the bobbin is light and runs stably.

Niobium, vanadium composite micro-alloying low-carbon boron steel for cold heading and production method thereof

Drawing frame cradle compressing sleeve bushing

The invention discloses a drawing frame cradle compressing sleeve bushing which is characterized in that the drawing frame cradle compressing sleeve bushing is arranged on the outer diameter of a compressing shaft in a sleeved mode and is pressed into an inner hole of a compressing sleeve, the drawing frame cradle compressing sleeve bushing is made of nylon, the outer diameter of the drawing frame cradle compressing sleeve bushing is in interference fit with the inner hole of the compressing sleeve, and the inner diameter of the drawing frame cradle compressing sleeve bushing is in clearance fit with the outer diameter of the compressing shaft. The drawing frame cradle compressing sleeve bushing is simple in structure, convenient to replace and resistant to wear and obviously prolongs service life of a drawing frame cradle compressing mechanism.

Production method of copper clad steel

Method for improving homogeneity of steel structure and equipment thereof

The invention relates to a method for improving the homogeneity of steel structure and equipment used thereby. The method comprises the steps of casting, crystallization, drawing, secondary cooling, drawing and straightening and cutting and a step of cutting a cast ingot blank by using a cutting saw along the central line of a cross section to divide the cross section of the ingot blank into equal parts, namely an added step of sawing along the central cross section of the ingot blank in casting production. The equipment comprises a steel barrel, an intermediate ladle under the water opening of the steel barrel, a crystallizer under the water opening of the intermediate ladle, a secondary cooling device under the crystallizer, a drawing and straightening roll, a bending roll and a strengthening roll, wherein the flame cutting machine is arranged in the outlet direction of the straightening roll; the cutting saw is also arranged in the outlet direction of the straightening roll; and the ...

Cutting device for continuous casting sheet billet

The invention discloses a cutting device for a continuous casting sheet billet. The cutting device is arranged on a roller way of a continuous casting sheet billet cutting production line. The cutting device comprises flamethrowers and supports used for installing the flamethrowers. A plurality of the flamethrowers are uniformly arranged above the roller way along an inclined line. According to the cutting device for the continuous casting sheet billet, the flamethrowers arranged in an inclined-line mode can reduce bending deformation caused by local expansion in the cutting process of the sheet billet and match with a sheet billet clamping device when the sheet billet is cut in the cold state so that bending of the sheet billet in the longitudinal direction can be resisted, and the probability of generating scrapped billets can be reduced. The flamethrowers carry out cutting at the same time online at the high temperature, the cutting mode can not be achieved manually, and therefore the ...

Steel wire galvanizing method

The invention relates to the technical field of galvanizing processes, provides a steel wire galvanizing method and aims at solving the technical problem of large decrease amplitude of the torsion performance of a steel wire serving as a bridge cable rope in the prior art after the galvanizing process. The method comprises the following steps: cleaning the surface of the steel wire by use of an acid pickling solution; removing the acid pickling solution left on the surface of the steel wire and heating the steel wire; putting the heated steel wire through a zinc bath containing a corrosion inhibitor; cooling the steel wire passing through the zinc bath, thereby forming a zinc coating on the surface of the steel wire. The surface of the steel wire is cleaned by use of the acid pickling solution so as to guarantee excellent uniformity of the zinc coating formed on the steel wire by virtue of galvanizing in the zinc bath; the zinc liquid containing the corrosion inhibitor is capable of inhibiting ...

Tool for cleaning oil hole of bobbin-winding machine

The invention discloses a tool for cleaning an oil hole of a bobbin-winding machine. According to an improvement to the tool, the tool comprises a straight-shank twist drill, a lengthened shank and a handle, wherein the lengthened shank is welded to the tail portion of the straight-shank twist drill, the handle is welded to the lengthened shank to form a T shape, and the head of the straight-shank twist drill is abraded to be flat. When the tool is used, the front end of the straight-shank twist drill is inserted in the oil hole, the straight-shank twist drill is rotated clockwise and pressed, and therefore oil sludge can be cleaned away along with rotation of the straight-shank twist drill. The tool is simple in structure and capable of thoroughly cleaning away the oil sludge in the oil hole of the bobbin-winding machine, and effectively guarantees oil adding and lubricating of the bobbin-winding machine.

Method for producing wire and bar materials

The invention relates to a method for producing wire and bar materials, which sequentially comprises the steps of smelting, secondary refining, square billet continuous casting, heavy forcing down, rolling and controlled cooling, and finished product collecting and coiling. The method adopts a heavy forcing down process to save the steps of casting blank stacking slow cooling, square billet downward delivery and square billet heating after the step of the square billet continuous casting, and organically compresses and combines a past steel plant with a past high-wire plant or bar material plant to form a short-flow production method of the wire and bar materials and greatly reduce the energy source consumption; besides, the production cost is far lower than that of the conventional long-flow process and is more lower than that of an overlong-flow process with secondary fire material formation, the benefit advantages are obvious, and the quality in producing high-carbon wire and bar materials ...

Production method for colored spun yarn with specific proportion

The invention discloses a production method for colored spun yarn with specific proportion. The colored spun yarn comprises 1% of colored fibers. The method includes the following steps that (1), 100% colored cotton fibers are manufactured to be colored rough yarn according to the conventional technology in the spinning production process of pure cotton; (2), natural color cotton is manufactured to be cotton rolls according to the conventional technology in the spinning production process of the pure cotton; (3), a carding machine is selected, and the colored rough yarn on a rough yarn suspended spindle is led into card slivers generated by cotton carding through a device arranged on a coiler of the carding machine, so that card slivers mixed with the colored rough yarn are generated; (4), natural color cotton card slivers are manufactured according to the conventional technology on other carding machines; (5), drawing is performed on the manufactured natural color cotton card slivers in ...