70results about How to "Play a warm-up role" patented technology

The invention relates to a method and a device for controlling a residual stress on a stir friction welding surface. According to the method, an insulation box capable of moving along a stirring head is adopted to insulate the weld joint and parent metal after welding, and then furnace cooling is performed so as to reduce the residual stress on the stir friction welding surface. The device mainly comprises a sucking-disc type fixture, the insulation box and control equipment, wherein the insulation material mainly comprises fire bricks, asbestos and steel plates. During welding, the insulation box moves along the stirring head and insulates the welded workpiece continuously; and after the welding, the whole workpiece enters the insulation box to be insulated and is cooled with the furnace after being insulated for a certain time so as to control the residual stress on the welding surface and the deformation, wherein the insulating temperature is the critical temperature of the heat treatment of the materials. The device realizes full automation in the whole welding process and avoids the reduction in the welding quality due to a human factor. The method and the device have the advantages of simple device, convenient operation, high technical economic benefit, and high welding quality of the stir friction welding.

The invention discloses a slimming warm-up oil, which is prepared by mixing 10-20 parts of lecithin,10-20 parts of polyoxyethylene, 10-20 parts of octadecyl hydroxyl betaine, 0.8-1 part of low molecular weight polyacrylamide, 10-15 parts of glycerol, 0.5-1.5 parts of tallow alkyl propanolamine and 30-40 parts of cation water. The slimming warm-up oil provided by the invention can be applied to the body before exercise, and has warm-up effect as well as slimming effect.

The invention provides a four-roller connection-rod vacuum electron beam wire feeder, relates to a vacuum electron beam wire feeder, and belongs to the field of the welding machinery. The invention aims to solve the problems of the existing vacuum electron beam wire feeder that wire feeding rollers and wire pressing rollers are easily worn, the distance between the wire feeding rollers and the wire pressing rollers can not be automatically adjusted according to the diameter of welding wires, etc. The main structure of the four-roller connection-rod vacuum electron beam wire feeder comprises a servo motor, two wire feeding rollers, two wire pressing rollers, a connection rod, a U-shaped groove and spring limit mechanisms, wherein, one wire feeding roller is fixed on the rotating shaft of the servo motor, the wire feeding roller rotates as the motor rotates, power is supplied for the other wire feeding roller through the connection rod; the two wire pressing rollers are fixed on a support through studs and nuts; the four rollers are coplanar; the two wire pressing rollers supply pressing forces for the wire feeding operation; and the four rollers and the connection rod jointly form the four-roller connection-rod vacuum electron beam wire feeder. The four-roller connection-rod vacuum electron beam wire feeder provided by the invention is mainly applied in the fields such as dissimilar material vacuum electron beam welding, self-forming technology, material surface cladding, efficient optimization of the performances of welding seams, defect control and the like.

The invention relates to a laser-heat wire TIG composite welding method achieving normal wire feeding. The method comprises the steps that a welding groove is designed out on the welding portion of a welded thick plate, and backing welding of the root face through high-power laser deep melting penetration welding; layer-by-layer filling welding is carried out on the groove of the welded thick plate in a manner of compounding a laser beam, a non-molten electrode and a welding wire achieving continuous heating, in the welding process, a composite welding torch should be adjusted to the height position of a molten bath according to the single-layer filling thickness, the welding wire is induced and heated through a heat wire heating device, in the welding feeding direction, the laser beam is arranged in front of the welding wire, and the non-molten electrode is arranged behind the welding wire and is put in an inert gas shielding shroud; and the groove weld of the welded thick plate is subjected to cosmetic welding through the above composite welding manner, and compose welding is completed.

The invention discloses a supercritical-CO2-assisted ozone desulfurization regeneration technique of waste rubber. The technique comprises the following steps: waste tires are subjected to crushing and separation by an automatic-linkage crushing line to obtain 20-50-mesh rubber powder, the rubber powder is sent into a co-rotating full-engagement double screw extruder and subjected to compounding plasticizing and preheating, and supercritical CO2 is introduced to the rear section of the double screw extruder so that the preheated plasticized rubber powder is subjected to the strong permeation and swelling actions of the supercritical CO2; in the auger delivery process, an ozone generator emits ozone which acts on the swollen plasticized rubber powder, and the crosslinked network structure of the swollen plasticized rubber powder is selectively destroyed under the ozonization action, thereby implementing the selective desulfurization regeneration; the rubber powder is subjected to complete desulfurization and extrusion forming by a screw extruder, and finally, subjected to after-treatment to obtain the green environment-friendly granular regenerated rubber; and the granular regenerated rubber is packaged and warehoused. The whole regeneration process does not need any chemical aid, and the obtained product is green and environment-friendly and has superior performance.

The invention belongs to the technical field of high-temperature steam electrolysis for hydrogen production and relates to a bottom entering gas testing device for a planar SOEC (solid oxide electrolyzer cell) stack. The testing device comprises a support base plate, a ceramic support pipe, a buffer gasket, a testing base and four stainless steel gas path pipes, wherein 4 gas flow distribution hole channels are formed in a cuboid of the testing base and communicate four base bottom gas holes with four base top gas holes pairwise. The testing device is used as a testing platform for a high-temperature SOEC stack and has the characteristics of stable testing, practicality, convenience, easiness in assembly, simplicity in operation and the like; the testing device adopts a design mode for combining the ceramic material and the high-temperature-resistant stainless steel material and has the performance of temperature resistance, heat insulation and electric insulation; the gas flow distribution hole channels formed in the testing base adopt inside roundabout design, heat in a high-temperature furnace is used directly for preheating entering gas, and the problems of gas pipe cracking and gas leakage of pipe joints at a high temperature are solved. The testing device is applicable to stable operation and performance testing of the SOEC stack.

The invention discloses a technology for producing cooled boiled water, wherein the technology is a method for scientifically producing cooled boiled water in an energy-saving mode and is a method for producing potable water which can be widely used in families and potable water producing manufacturers. Most importantly, the technology of alternatively using cold energy and heat energy is adopted, and the inlet water flow of a water heater and the outlet water flow of the water heater are combined together through a water barrel or a pipeline so that the temperature of the inlet water (cold water) and the temperature of the outlet water (hot water) can be exchanged through the wall of the water barrel or the wall of the pipeline even though the inlet water and the outlet water are not compatible due to different water qualities. The experiment shows that the technology for producing the cooled boiled water can save about 90% of energy compared with a traditional technology for producing the cooled boiled water. As the technology for producing similar products, in the time when potable water producing enterprises use chemical sanitizers for disinfection, the technology for producing the cooled boiled water directly solves the problem that conventionally, cost is high when the cool water is produced and indirectly solves the problems of safety and health of the potable water drunk by people are indirectly solved at the same time.

The invention discloses a lead welding device and technique for packaging a semiconductor power device and belongs to the technical field of semiconductor power device packaging and manufacturing. The device is a laser wire welding machine and comprises a computer main board, a laser generator, a chip and frame image identification system, a feeding system and an XY workbench. The computer main board is used for controlling all the actions of the laser wire welding machine to achieve the whole automatic and accurate wire welding technique process; the laser generator is used for outputting laser spots of the required power and the required diameter; and the feeding system is used for accurately conveying a frame, a lead and a brazing wire to the work position before welding actions are executed. According to the technique, lead connection is achieved through a brazing technique, and the brazing process is achieved through lasers. By the adoption of the device and technique, a wet aluminum pad and a frame are directly melted to achieve the stable and reliable connection of the lead, a chip and the frame, and therefore mechanical damage, thermal damage and the stress problem existing in a traditional routing technique are avoided.

The invention provides a PE pipe three-section metering high-speed single-screw extruder, and belongs to the technical field of machinery. The PE pipe three-section metering high-speed single-screw extruder solves the technical problems that an existing screw extruder is troublesome in feeding and the like. The PE pipe three-section metering high-speed single-screw extruder comprises a base, and is characterized in that a working barrel and a blending device are arranged on the base, a machining barrel is arranged on the working barrel, a screw is rotationally arranged in the machining barrel,a first power motor is further arranged on the base, the screw is connected with an output shaft of the first power motor through a reduction gearbox, a first feeding port is formed in one end of themachining barrel, the other end of the machining barrel is connected with a discharging nozzle, a feeding device is further arranged on the machining barrel, the feeding device communicates with thefirst feeding port through a drying box, the feeding device communicates with the blending device, a heating device is further arranged on the working barrel, the heating device is connected with a moving structure, and a heat circulation mechanism is further arranged on the base. The PE pipe three-section metering high-speed single-screw extruder has the advantage of high working efficiency.

The invention discloses an efficient laser additive manufacturing method based on wire thermal conductivity welding, and belongs to the field of laser material machining. The method is characterized in that the action position of a laser beam and a rear wire is located above a molten pool; a wire material is melted in a heat conduction welding mode to form molten drops, a base material below the molten drops is preheated by reflected light of the wire material, and meanwhile, metallurgical connection is performed between the molten drops and the base material; and metal parts of various structures are manufactured through ascending and descending of a workbench or a laser head according to a point-line-plane-body route. Compared with a three-dimensional heat transfer type laser additive manufacturing method, the method adopts the laser melting wire located above the molten pool, which belongs to one-dimensional heat transfer, the heat conduction loss of the material can be greatly reduced, the melting efficiency is improved, on the other hand, the preheating of the base material by the reflected light can promote spreading of the molten drops on the base material, and the utilization rate of laser energy is further increased, in addition, the disturbance of violent evaporated steam of the material can be avoided by adopting the heat conduction welding mode, the stability of theadditive manufacturing process is improved, and splashing particles and air holes are prevented from being formed.

The invention belongs to the technical field of high polymer materials, and particularly relates to a polypropylene film which comprises a shell, a core and leading-out lines. The core comprises a substrate layers, metal film layers and a heat conduction layer. The two substrate layers are made of modified polypropylene resin films; the metal film layers are fixedly connected to both sides of thesubstrate layers through evaporation, and the area of the metal film layers is smaller than that of the substrate layers; the heat conduction layer is made of a heat conduction silicone grease material; the surfaces, away from the heat conduction layer, of the metal film layers are coated with an insulating paint layer; the metal film layers on two adjacent substrate layers are in a staggered state; the leading-out wires are respectively conducted with the metal film layers on the two substrate layers; the MAH graft modified polyethylene wax and the active manganese dioxide are added into thepolypropylene film, so that the softness of the prepared polypropylene film is effectively and remarkably enhanced, meanwhile, the active manganese dioxide is self-decomposed to release oxygen ions togenerate an aluminum oxide film, and the service life of a film capacitor is further prolonged.

The invention relates to a composite welding technology method of aluminum and an aluminum profile thereof. Heat inputs of two welding methods are adopted for being mutually complemented and utilized.According to the first kind, electric arc welding is carried out on fillet seams on the two sides of a web, and after a certain distance is kept, stirring friction welding is carried out for weldinga middle wing plate. According to the second kind, middle stirring friction welding is carried out firstly, so that a T-shaped connector is formed, and then fusion welding is carried out on the two sides. According to the composite welding technology method, by means of integrated composite welding, an automatic profile welding production line with high efficiency, high quality and relative low cost can be achieved.

The invention discloses an integrated drying machine which comprises a box body (1), a lifting device (2) and a hot blast stove (a). The box body (1) is divided into an upper tempering cavity (11) anda lower drying cavity (12); the lifting device (2) is used for conveying grains into the box body (1) for drying the grains and driving the grains to circulate in the box body (1); and the hot blaststove (a) is arranged in the box body (1) and used for providing hot air, and the hot air enters the drying cavity (12) to dry the grains. The integrated dryer is compact in structure, small in occupied area, convenient to arrange, capable of meeting requirements of mobile operation and capable of fully utilizing heat and reducing the heat loss.

A novel distillation system of a hydrocarbon cleaning machine is provided. The system include a filter, a transit tank, a first heat exchanger, a second heat exchanger, a first-grade distillation tank, a second-grade distillation tank, a pure liquid tank and a drainage tank. Hydrocarbon sewage is filtrated through a filter tank to obtain a hydrocarbon filtrate; the hydrocarbon filtrate is temporarily stored in the transit tank; the hydrocarbon filtrate in the transit tank is fed into the first heat exchanger, preheated by the first heat exchanger and then fed into the first-stage distillationtank; hydrocarbon steam obtained by distilling the hydrocarbon filtrate through the first-stage distillation tank is fed into the first heat exchanger for heat exchange with the hydrocarbon filtrate,and is then cooled in the second heat exchanger to obtain pure liquid, with the pure liquid being fed into the pure liquid tank; hydrocarbon sewage obtained by distilling the hydrocarbon filtrate in the first-stage distillation tank is fed into a sewage tank, and then fed into the second-grade distillation tank, and recovered hydrocarbon steam obtained after distillation and the hydrocarbon steamobtained by distillation with the first-grade distillation tank are combined and cooled by the two heat exchangers in order to obtain pure liquid, with the pure liquid being fed into the pure liquid tank; and the hydrocarbon sewage obtained after distillation in the second-stage distillation tank is fed into the drainage tank.