1135 results about "Extrusion moulding" patented technology

A built in beat diffusion lamp body for LED lamp was invented. The purpose of the invention is to solve the difficulties of poor heat conduction and diffusion caused by the small heat diffusion surface of the material of a conventional LED lamp. The lamp body is made of a set of heat diffusion vanes encircling the heat diffusion complex. The vanes and heat diffusion complex are made from Aluminum alloy in a single process of extrusion moulding. The transverse section of the heat diffusion body is volute shaped. The bottom of the heat diffusion complex is fixed to an aluminum board or an aluminum circuit: board by interference fit. The heat generated by the LED elements can be absorbed and diffused by the board, the heat diffusion complex and the surrounding diffusion element. The outward appearance of the heat diffusion lamp body may be shaped into cup, ladder, or cylinder likeness to satisfy the application requirement. The advantages of current invention are: efficient heat absorption, conduction, and diffusion, low cost for manufacturing, and aesthetic appearance.

The present invention relates to a preparation method of biological affinity hydrophilic active magnetic seed filling material for treating water. It is characterized by that said method includes the following steps: mixing biological affinity substance, hydrophilic substance, magnetic powder and active carbon or magnetic powder and calcium carbonate in the high-molecular base material, and adding dispersion lubricating agent, uniformly stirring them, placing them into injection moulding machine, utilizing filling mould to make extrusion moulding and magnetizing, so as to obtain the invented filling material. It has biological affinity and hydrophilicity, at the same time can induce microbial activity and enzyme activity, and can raise oxygen utilization rate in water and water treatment efficiency.

The invention relates to a preparation method for a silicon carbide ceramic tube or rod. An extrusion moulding method is adopted to form a blank body; a normal pressure sintering method is adopted for sintering; and submicron level silicon carbide powder and additives are taken as main raw materials. The preparation method comprises the following steps: 1) carrying out ball milling on the main raw materials by a dry method, adding water, a dispersant, a plasticizer, a lubricant and a liquid state binder, and then carrying out ball milling by a wet method; 2) adopting a spray granulation process to granulate silicon carbide slurry; 3) extruding the blank body by a one-shot direct extrusion moulding method after vacuum pug, corrosion, and vacuum pug; 4) drying the molded blank body by a stage drying mechanism; and 5) placing the blank body of the silicon carbide ceramic tube or rod in a vacuum furnace and carrying out sintering for two times by taking argon gas as protective gas. The high temperature resisting strength and the corrosion resistance of the silicon carbide ceramic tube or rod prepared by the method are both better than those of a reactive sintered product. Compared with a hot press sintering method, the method has lower limit on the product shape and size, and lower cost. The method is suitable for the industrialized production.

The invention relates to a building product and the generating method thereof, in particular to a construction special-purpose plate and the manufacturing method thereof. The invention is made of the following raw material according to the parts by weight: 20 to 50 percent of thermoplastic resin comprising polyvinyl chloride, polyethylene and polypropylene, 50 to 80 percent of bulking agent comprising iron ore waste tailing sand, calcium carbonate and slag, and additive occupying 0.05 to 5 percent of the gross weight of the thermoplastic resin and the bulking agent and comprising plasticizer, heat stabilizer and lubricating agent. The product is made by adopting a stone molding and extrusion moulding way, no pollution is produced, no distortion exists, the product is moistureproof and fireproof, the processing waste and the disposed plate of the product can be recycled and newly processed to ensure zero waste, the damage to the environment cannot be caused, and the product is made into a hollow plate structure which has the advantages that the elasticity and the sound insulation effect are good and the heat transfer effect is good, therefore, the invention is very suitable for the heating of a geothermic pipeline, and the difficult problem that a wooden compound floor plate in the present market cannot be used for the heating of the northern geothermic building because of the distortion due to the heating or poor heat insulation heating effect is solved.

The invention discloses coarse cereals instant pasta and a preparation method. The coarse cereals instant pasta includes 15%-40% of coarse cereals powder, 57%-84% of wheat flour and 1%-3% of food additives. The preparation method includes steps: mixing raw materials, adding proper amount of water according to need, extruding and slaking, secondary extruding and slaking, shaping, heating by microwave, drying by hot wind, and packaging into bag-type or cup-type or bowl-type instant pasta with flavoring packet. The method has advantages of secondary extrusion moulding, no need of frying process, low oil content, rich nutrition, good rehydration performance, tough and slippery taste, coarse cereals characteristic flavor, and long storage life.

The invention discloses a hot extrusion forming process of half-shaft casings, comprising the following steps: 1) selecting proper round steel according to design products and heating the round steel to 1100-1250 DEG C, 2) carrying out forward extrusion and upsetting, 3) carrying out backward extrusion and positioning, 4) carrying out shallow punching and performing, and 5) carrying out deep punching, finish forging and forming. The invention also discloses a special device for implementing the hot extrusion forming process, comprising upsetting tools, positioning tools, tools for shallow punching and performing and tools for deep punching, finish forging and forming, which are arranged from left to right in sequence. The process has four stations. Each station has enough cooling and lubricating time. Not only can the special device not be deformed after long-term use and the workpieces can not have the problem that inner hole inclination leads to inner and outer coaxiality difference, but also the special device is protected to reduce damage while the capacity is increased.

The invention discloses a clay-based heavy metal thermal curing agent and its method for curing heavy metal. The clay-based heavy metal thermal curing agent comprises, by weight, 40-60% of clay, 5-15% of iron oxide, 20-30% of fly ash and 15-25% of stone flour. The method provided by the invention comprises the following steps of: uniformly mixing the clay-based heavy metal thermal curing agent and a heavy metal pollutant according to the mass ratio of 1: 5-10: 1, carrying out extrusion moulding on the mixed sample at the pressure of 300-1000Mpa, and sintering the molded sample at the temperature of more than 800 DEG C for 2-5 h to obtain a recycled material. According to the invention, heavy metal is coalesced by absorption of clay to heavy metal; fly ash and stone flour are used to fully mix heavy metal with the clay-based heavy metal thermal curing agent during the mixing process; iron oxide and alumina components in the clay-based heavy metal thermal curing agent react with heavy metal at the temperature of more than 800 DEG C for high-temperature fusion glass transition so as to form a spinel structure; and heavy metal in the form of spinel and feldspar crystal structural components is fixed in the heavy metal thermal curing agent to form the recycled material.

The invention discloses a process for forming a medium-strength heat-resistant magnesium alloy thick plate with the thickness of 50-80mm. The process route comprises the following steps: big furnace smelting, semi-continuous casting, homogenizing annealing, variable temperature multi-directional forging, extrusion forming and aging treatment, wherein the step of variable temperature multi-directional forging is performed on a hydraulic machine, the temperature of the ingot blank is kept at 380-410 DEG C for 3-5 hours before forging, and the pressing speed is 200-400mm/minute; the step of extrusion forming is performed on a horizontal extruder, the temperature of the ingot blank is kept at 340-350 DEG C for 3-5 hours before extrusion, and the thickness plate with the extrusion ratio of 13-15, the extruded thickness of 50-80mm, the width of 130-200mm and the length of more than or equal to 1000mm is extruded. After the aging treatment, the room-temperature yield strength of the thick plate along the extrusion direction is more than or equal to 260MPa, the tensile strength is more than or equal to 370MPa, and the elongation is more than or equal to 9 percent. The process is high in forming efficiency, and large-scale industrial production can be realized.

The present invention relates to semi-solid forming technology, and is especially semi-solid multi-blank extruding process and apparatus for forming double-layer composite pipe. The technological process includes the following steps: pre-heating the mold to 200-300 deg.c and establishing temperature control system, setting the induction heated blank into the extruding mold, and extruding at regulated speed and stroke to obtain the required composite pipe. The new extruding process for making composite pipe has short procedure, low power consumption and high product quality.

The invention relates to a powder metallurgy production method of an internal helical gear. The powder metallurgy production method comprises the following steps: 1) preparing metal powder raw materials in proportion; 2) putting the prepared metal powder raw materials into a mould of a powder extrusion moulding machine for moulding by rotary extrusion to form a mould green compact; 3) putting the mould green compact into a high temperature mesh belt furnace for sintering treatment; and 4) putting a sintered product into a carburizing furnace for carburizing treatment. The powder metallurgy production method helps produce the internal helical gear with easy production and operation, less cost, high production efficiency, high material utilization rate and high product accuracy.

The invention relates to the technical field of electric cars, in particular to an integrated water-cooled power battery box. The integrated water-cooled power battery box provided by the invention comprises a box cover, a box body and a temperature regulating power system, wherein the box body is made of an aluminum alloy material and is manufactured by an extrusion moulding technology; a circulating flow passage is formed in the wall of the box body; a circulating loop for a temperature regulating medium to flow circularly is arranged inside the wall of the box body; and the temperature regulating power system can drive the temperature regulating medium to circularly flow in the circulating loop. In such a way, a water cooling board and a battery box are designed in an integrated manner,a hollow aluminum alloy section is adopted to achieve lightweight design, mechanical properties such as strength and rigidity are met, the integrated water-cooled power battery box is simpler in structure, better in technical performance and smaller in occupied space, and the comprehensive cost can be reduced; the heat-dissipating, cooling and temperature-raising and heating functions can be achieved by using one set of temperature regulating power system, the integrated water-cooled power battery box is simpler in structure, more convenient and fast to use and smaller in occupied space, themanufacturing cost and the using cost can be reduced, and the heat-dissipating efficiency and the heating efficiency can be improved.

The invention relates to a capillary pumping cooling device with micro-groove wing structure, which comprises: an evaporator connected to a condensator by a steam union pipe and a liquid union pipe to form a system for operating means circulation; arranging a plurality of crossed-intercommunicating boiling strengthened plates with micro-groove wing structure on both sides. This invention is used mainly for heat dissipation of micro-electron chip. Wherein, this invention uses plough cutting-extrusion molding technology for micro-groove wing structure and planing forming technology for integrated wing cooling fin with low cost and high efficiency, which benefits to reinforce boiling, promote condensation and speed up convective dissipating heat.

The invention discloses an ultrasonic vibration microtube extrusion mould, belonging to the technical field of polymer extrusion moulding. The invention is characterized in that the mould comprises an ultrasonic-frequency power supply, an energy converter, a vibration rod, an amplitude transformer, a vibration head, a die head body, a spure sperader, a support plate, a positioning pin, a die supporting plate, a baffle plate, a fastening bolt, a washer, a die, a check ring, an integrated pressure/temperature sensor, a mandrel, an adjusting bolt, an air vent bolt, a heating ring, a temperature sensor, a connecting pipe and a flange plate. The mould adopts a feeding mode of which feeding direction is perpendicular to the extrusion direction; the vibration head adopts a spiral groove type structure and vibrates along the microtube extrusion direction; different spure speraders, mandrels and dies with different structural parameters can be changed according to demands; and the integrated pressure/temperature sensor is used to measure the changes of the pressure/temperature in the runner of the mould. By designing the ultrasonic vibration microtube extrusion mould capable of realizing vertical feeding, ultrasonic vibration is combined with the plastic microtube extrusion moulding, thus reducing flow resistance, increasing the production efficiency and obtaining the plastic microtube with high quality.

The invention relates to a preparation method of a plastic starch-modified PBAT (poly(terephthalic acid-buthylene succinate)) biodegradable material. The preparation method comprises the following three steps: preparing a plastic starch; performing melt blending on the plastic starch and PBAT; and processing the modified material. The plastic starch-modified PBAT biodegradable material can be applied through multiple processing measures of injection moulding, cast moulding, film casting, extrusion moulding and the like. In the modified material, the starch recycling rate is low, and the recycled starch has the particle diameter of 1-50 nm and is uniformly dispersed in a matrix; the tensile strength is 10-15 MPa, the elongation at break is 100-700%, and the melt index (150 DEG C, 2160g) is more than or equal to 1 g/10 min; and under a composting condition, the plastic starch-modified PBAT biodegradable material is kept for 30 days at the temperature of 20-50 DEG C and the humidity of 30-60%, and 50-75% of the plastic starch-modified PBAT biodegradable material can be degraded. The plastic starch-modified PBAT biodegradable material integrates excellent mechanical properties and biodegradability and has a relatively large potential in industrial application.

The invention relates to a plastic-wood composite material and provides a hickory nut shell ecologic wood composite material and a preparation method thereof. The hickory nut shell ecologic wood composite material is prepared from following components including, by weight, 50-60 parts of a thermoplastic high-molecular resin, 40-50 parts, or 30-40 parts, of hickory nut shell powder, 10-20 parts of wood powder, 8-10 parts of light calcium carbonate, 10-14 parts of a compatilizer, 2-4 parts of a thermal stabilizer, 2-4 parts of a lubricant, 2-3 parts of a plasticizer, and 1-3 parts of an antioxidant and an ultraviolet stabilizer. A comprehensive technology comprising deep process of raw materials and extrusion moulding and the like is employed. Deep process waste of wild hickories and waste plastic resources are employed. The composite material in the invention has dual-characteristics, which exist in common plastic-wood, of wood and plastic, is better in mechanical performances and is more rigid, durable, wear-resistant and weather-resistant. The method is simple and convenient, is low in manufacturing cost, can be recovered and recycled, can save energy resources and can protects environment.

The invention relates to an ultrahigh-strength aluminum alloy material and a preparation method of a pipe blank for preparing an internal cylinder of a separator, belonging to the technical field of material processing and solving the problems that the traditional aluminum alloy material has lower tensile strength and the internal cylinder of the separator, which is prepared by using the traditional aluminum alloy material, can not meet the requirements on the separator for working for a long time at high rotating speed. The invention puts a technical emphasis on that the ultrahigh-strength aluminum alloy material comprises the following components in percentage by weight: 10.5-13.0wt% of Zn, 2.3-3.2wt% of Mg, 1.2-1.8wt% of Cu, 0.2-0.3wt% of Mn, 0.2-0.3wt% of Cr, 0.1-0.2wt% of Zr, 0.1-0.2wt% of Sc, less than 0.05wt% of Fe, less than 0.05wt% of Si and the balance of Al. The preparation method of the pipe blank comprises the following steps of: melting alloys, and casting into an alloy ingot; carrying out melting, casting transfer, atomized spray and deposition forming on the alloy ingot to prepare a flash set billet; carrying out isothermal forging performing; carrying out hot extrusion forming by adopting an extrusion mould; and carrying out twin-stage solid solution and aging treatment on a preformed pipe blank so as to prepare the pipe blank which can be used for preparing the internal cylinder of the separator. The invention is suitable for preparing the internal cylinder of a centrifugal separator which works for a long time at the rotating speed of 8000-10000 rpm.

The invention relates to a cereal coarse grain instant noodle processing production line, comprising a mixing drum, a flour mixing machine, a hoisting machine, a flour feeding machine, an extrusion moulding machine, a quantitative cutting machine, a row combining machine, a pneumatic stopping device, a row separating device, a flour steaming machine, a drying machine, a cooling machine, an inspection conveyor, a packaging machine and a finished product conveyor which are sequentially connected, wherein an automatic weighing blanking device and a positive pressure conveying device are arranged in the procedure before the procedure of the flour mixing machine; a flour softening machine is arranged between the flour mixing machine and the hoisting machine; the extrusion moulding machine is one with automatically controlled temperature and curing degree; the quantitative cutting machine is of high accuracy type; the row separating device is of pneumatic type; the drying machine is a multi-section temperature and humidity controllable drying machine; and a transition conveyor is arranged between the cooling machine and the inspection conveyor. The invention can complete integration continuous production including burdening, conveying powder, mixing flour, softening flour, extruding and curing, high accuracy quantitative cutting, stewing and curing, multi-section drying, cooling and finished product packaging.

The invention relates to a manufacturing method of a mobile phone shell and a special die. The method is used for manufacturing a front shell or a back shell of a mobile phone and specifically comprises the following steps of cutting sheet metal into metal sheets first, drawing the metal sheets into concave hollow pieces, shaping notches of the concave hollow pieces, then putting in a die for extrusion forming, performing nanometer treatment and nanometer injection molding after extrusion forming, milling and trimming a workpiece through CNC (Computer Numerical Control), and then performing surface treatment on the workpiece. The die for manufacturing the front shell or the back shell of the mobile phone comprises a lower die and an upper die, wherein the upper die is matched with the lower die. The manufacturing method has the advantages of reasonable concept, simple operating process, good manufacturing quality and high efficiency and is suitable for popularization and application.

The invention discloses an elastic body material for refrigerator sealing strips and preparation method thereof. The elastic body material for refrigerator sealing strips consists of hydrogenation styrene resin, rubber filling oil, polypropylene, mineral filler, weather resistant agent, compatibilizer and processing aids. The elastic body material for refrigerator sealing strips is manufactured by extrusion graining with counter-rotating twin-screw extruder after the raw material is mixed in high-speed mixer. Halogen material and o-benzene plasticizer which is harmful to human health will not be introduced in practical production process of the elastic body material for refrigerator sealing strips. The thermoplastic elastomer material produced in the invention has the advantages of light weight, high resilience, high welding strength, easy colorizing and good low-temperature resistance. There is no need for the treatment of high temperature sulfidation when extrusion moulding is operated with the above material. Decomposion of toxic gas and corrosion of production equipments will not happen during the process of extrusion moulding, and scraps can be recovered and re-used.

The invention relates to an extrusion and molding method for a cup-shaped part and a special extrusion die. The extrusion and molding method comprises the following steps that (1) a blank to be extruded is put into a concave die, wherein the extrusion die comprises an inner convex die; an outer convex die is sleeved outside the inner convex die; the outer convex die is in guided sliding fit with the inner convex die; a pressure machine is provided with a power output shaft which is correspondingly connected with the outer convex die and the inner convex die; a corresponding output shaft of the pressure machine drives the inner convex die which is in transmission connection with the pressure machine to downwards extrude the blank; the inner convex die is moved downwards to the thickness of the needed part; (2) the lower end of the inner convex die is ejected against the blank to keep still; the output shaft on which the pressure machine and the outer convex die are in the transmission connection drives the outer convex die to slide downwards along the outer periphery of the inner convex die to extrude the blank to form the needed cup-shaped part; (3) after the extrusion is finished, the pressure machine drives the inner convex die and the outer convex die to return so as to eject the molded part. According to the extrusion and molding method for the cup-shaped part and the special extrusion die, the inner convex die and the outer convex die are extruded in sequence; the single-time extrusion area is small and the tonnage of extrusion equipment can be reduced so that the production cost is reduced.

The invention discloses a differential extrusion forming die of a high-performance magnesium alloy cup-shaped part and relates to the technical field of metal plastic machining processes and forming. A combined type female die comprising a T-shaped upper female die body and a U-shaped lower female die body is adopted. A cylindrical cavity is formed inside the T-shaped upper concave die body mounted on the U-shaped lower concave die body, and the cross section of a formed revolution body cavity is shaped like the Chinese character 'shan'. Staggered ladder type differential extrusion steps are arranged at the bottom of the extrusion cavity shaped like the Chinese character 'shan'. The magnesium alloy cup-shaped part is extruded through the extrusion cavity shaped like the Chinese character 'shan' and the staggered ladder type differential extrusion steps at the bottom of the cavity, so that the forming capacity of a magnesium alloy material is improved greatly, a high compact structure and large plastic deformation are obtained, the grain refining effect is significant, the effect of removing grain dual modality distribution of the cylinder wall of the cup-shaped part is obvious, and the manufacturing process of the high-performance magnesium alloy cup-shaped part is accelerated.

The invention relates to polymeric pipes reinforced with a metal casing, which are used for transporting oil and gas, acids, alkali products, drinking water and industrial water, and also in the transportation of aggressive and neutral pulps, for example, in the event of the underground leaching of rock. What is claimed is: a metal-containing polymeric reinforced pipe comprising a welded metal casing and a polymeric matrix having an amorphous-phase-based molecular structure. The metal-containing polymeric reinforced pipe is produced by extrusion moulding with simultaneous feeding of a polymer melt and the reinforcing metal casing into the mould cavity, followed by intensive cooling of the internal and external surfaces of the pipe being moulded. The technical result of the invention is an increase in the quality and endurance limit in the radial direction of the metal-containing polymeric reinforced pipe, with an increase in productivity of the process for manufacturing said pipe, and also an increase in the strength and technological effectiveness of a pipeline constructed from the pipes produced.

The invention discloses a gradual die-less forming method suitable for small-batch single plate forming processing. The method adopts the following technical scheme: the plate needing to be processed, under the control of a numerical control system, moves in the plane according to the set processing path; to match with the horizontal movement of the plate; three couples of extrusion forming heads, under the control of the numerical control system, independently move along the vertical direction according to the paths set by self to carry out continuous gradual extrusion drawing forming on theplate; each couple of extrusion forming heads comprises an upper forming head and a lower forming head; the upper forming heads and the lower forming heads, opposite to each other, are respectively arranged on an upper working head above the plate and a lower working head below the plate; and the three couples of extrusion forming heads comprise one couple of main forming heads for forming and two auxiliary forming heads which are near the main forming heads and used for clamping and positioning the plate. The method can carry out two-way drawing forming on the plate and the auxiliary formingheads clamp, position and correct the formed area of the plate, thus improving the formed shape and dimension precision.