434results about How to "Extended cooldown" patented technology

The invention relates to a food processing method, in particular to a special poultry meat fine and deep processing method. In the invention, high-technology content special duck meat deep processed new products and special convenient and quick poultry meat green products are developed by using technology for preserving raw material duck meat with edible multifunctional preservation films, ultrasonic rapid penetration salting promoting technology, energy-saving, emission-reducing and environmentally-friendly microwave assisted sterilization technology, vacuum cooling technology, vacuum oil frying technology, infrared roasting technology and the like.

The invention discloses a device and a process for generating power through efficient recovery of waste heat of sintered ores and belongs to the technical field of cogeneration. The device comprises a sintered ore cooling system, a waste heat power generating system and a smoke system, wherein the sintered ore cooling system and the waste heat cycling power generating system are connected through the smoke system to form a loop. The process comprises the steps of 1), cooling of sintered ores; 2) the smoke system; and 3) waste heat power generating. The device and the process for generating power through waste heat have the advantages that discharged waste heat is used fully during cooling of sintered ores, the electric energy production is improved significantly, the power rate of the system is reduced significantly, and the energy-saving effect is significant.

The invention discloses a solid state heat sink device used for friction stir welding and a welding method of the solid state heat sink device. The solid state heat sink device comprises a solid state heat sink, a push rod connected with the solid state heat sink and a cooling water pipe, wherein the solid state heat sink comprises an upper bottom face, a lower bottom face and a side face, heat dissipation through grooves are formed in the lower bottom face, cooling water channels are formed in the side face, the cooling water channels are connected with the cooling water pipe, and an installation hole used for installation of the push rod is formed in the upper bottom face of the solid state heat sink. The solid state heat sink device synchronously moves in the welding direction along with a friction stir welding device, and the lower bottom face makes full contact with the surface of a weldment so that heat conduction can be achieved, heat dissipation and cooling can be conducted on a weld joint which is still at a high temperature, and the peak temperature of the weld joint can be effectively lowered. Meanwhile, cooling water is injected into the water channels formed inside the heat sink to conduct forced heat dissipation and cooling. According to the solid state heat sink device and the welding method, the weld joint can be prevented from being overheated, weld joint crystalline grains are refined, the well-formed formation is improved, residual stress and strain of a welded joint can be eliminated or reduced, and the aims of improving the quality of the weld joint and improving the comprehensive performance of the joint are achieved.

In a method and device for producing a tomosynthetic 3D x-ray image, a number of 2D projection images of an examination subject are acquired using a fixed x-ray source. The x-ray source has multiple,individually controllable emitters that respectively emit a single x-ray dose from various different directions. The tomosynthetic 3D image is reconstructed from the individual 2D projection images, and at least one 2D projection image is composed of multiple individual images.

The invention relates to steel rope maintaining equipment, in particular to a device for soaking oil on the steel rope surface. The device comprises a grease heating groove, an electrical heating device, a steel rope release frame and a steel rope traction device, wherein the electrical heating device and the steel rope release frame are installed in the grease heating groove. The device for soaking oil on the steel rope surface is characterized in that a pulley block is installed behind the grease heating groove, and an oil receiving disk is arranged under the pulley block; and the steel rope traction device is driven to rotate by a motor and a speed reducer. Because the pulley block is additionally arranged behind the grease heating groove, and the oil receiving disk is arranged under the pulley block, thereby enabling the cooling time of a steel rope soaked with the oil to be prolonged by the pulley block; meanwhile, the dropping grease of the steel rope in the cooling process falls into the oil receiving disk, on one hand, a plurality of grease are recovered, on the other hand, the problem of pollution of the grease to the environment is solved.

The invention belongs to the field of laser cladding remanufacturing, and provides a sectioned laser cladding remanufacturing method with preheating and heat treatment for complex parts. According to the invention, on the basis of a single-track and single-layer laser cladding experiment, laser cladding parameters are determined with reference to the track shape of laser cladding and the complexity of workpieces; the laser powers of preheating treatment and aftertreatment are selected according to the laser cladding parameters, the lead time of the laser preheating and the lag time of the heat treatment are determined according to requirements on the surface stress and the surface hardness of the parts, the path length of each laser cladding is determined according to the lead time and the lag time, and the preheating, the laser cladding and the heat treatment are successively carried out on each section. The method is capable of effectively reducing the generation of laser cladding cracks relative to common laser cladding, and is capable of processing a curve path and high in adaptability compared with three-beam preheating and heat treatment laser cladding.

A cooling gas discharge nozzle 7 is arranged above an initial position P(Rin) distant from a rotation center P(0) of a substrate W toward the outer edge of the substrate W and supplies a cooling gas to the initial position P(0) of the rotating substrate W to solidify DIW adhering to an initial region including the initial position P(Rin) and the rotation center P(0). Following formation of an initial solidified region FR0, a range to be solidified is spread toward the outer edge of the substrate W and all the DIW (liquid to be solidified) adhering to a substrate surface Wf is solidified to entirely freeze a liquid film LF.

The invention discloses an exhaust pipe welding set of a compressor upper shell. The exhaust pipe welding set comprises a supporting bracket (1) and a rotating disc which is rotatably connected with the bracket (1), wherein a plurality of welding clamps (3) which are used for fixing the compressor upper shell (8) and an exhaust pipe (9) are uniformly distributed in the circumferential direction of the rotating disc (2); the lower end of the exhaust pipe (9) is sleeved by a welding ring (10); a welding gun (7) which is used for welding is arranged on the side edge of the bracket (1); and the welding device further comprises a controller which is used for controlling the rotating disc (2) and the welding gun (7) to be matched to start and stop intermittently. When the welding device is used for welding, the operation is convenient and orderly, the welding performance is stable the changeability is small, the undesirable phenomenon of weldment leakage is reduced, the welding quality of the weldment is greatly enhanced and relatively strong practicability is achieved.

The invention discloses a selective laser melting (SLM) 3D printer. The SLM 3D printer comprises an air protection tank and a computer arranged on the outer wall of the air protection tank; the air protection tank is internally provided with a powder laying forming workbench; two groups of X-axis movement mechanisms are arranged above the powder laying forming workbench; the two groups of X-axis movement mechanisms are connected with a Y-axis movement mechanism; a powder feeding cylinder, a powder laying forming cylinder and a powder recycle cylinder are sequentially arranged on the powder laying forming workbench in an inserting mode; the powder laying forming cylinder is internally provided with a printing substrate plate; a Z-direction movement mechanism used for driving the printing substrate plate to move in the Z direction in the powder laying forming cylinder is arranged on one side of the printing substrate plate; and each group of X-axis movement mechanism is provided with a laser cladding device used for performing selective laser melting on the printing substrate plate and a laser thermal treatment device used for improving metal structure and mechanical properties. TheSLM 3D printer has the beneficial effects that cracks produced in the process of metal solidification are prevented, yield rate is further improved, and meanwhile 3D printing speed is improved to be suitable for mass production.

The invention provides a lubricating grease blending kettle. The lubricating grease blending kettle comprises a tank body of the blending kettle, wherein the tank body of the blending kettle is arranged on a support base and comprises a kettle body and a jacket; a stirring mechanism and a stirring motor are arranged at the top part of the kettle body; the stirring mechanism comprises a stirring shaft and spiral blades, and a circle of spiral scraping strips is arranged at the exterior of each spiral blade; the jacket comprises an inner jacket and an outer jacket, a heating wire is arranged inthe inner jacket, the outer jacket is provided with a cooling water inlet and a cooling water outlet, a flow guide plate is arranged in an inner cavity of the outer jacket, and a rotary motor is arranged at the bottom part of the jacket. The lubricating grease blending kettle has the beneficial effects that by arranging the spiral scraping strips at the outer side of each spiral blade on the stirring shaft, the lubricating grease which is attached to the inner wall of the kettle body can be driven, so that the integral fluidity is improved, and the dead corner at the inner wall of the kettle body is prevented; the rotary motor is used for driving the kettle body to rotate, the lubricating grease at the bottom part are stirred by fan blades, the dead corner at the bottom part of the kettlebody is prevented, and the stirring and blending effect is better.

The invention belongs to the technical field of powder metallurgy, and specifically relates to a preparation method of tungsten powder used for high-density alloy. The method specifically includes thefollowing steps that high-specific-surface-area tungsten oxide preparation, boat loading, reduction, cooling and sieving. The high-specific-surface-area tungsten oxide is prepared through ammonium paratungstate, hydrogen serves as a reducing agent, the high-specific-surface-area tungsten oxide can be reduced tungsten powder at high temperature more than 800 DEG C, the reduced tungsten powder is cooled in multi-stage mode, and finally, the tungsten powder is subjected to ultrasonic sieving to obtain near-spherical tungsten powder, wherein grain growth is complete, the tungsten powder is full,the activity is low, the dispersion property is good and the tungsten powder has particle morphology.

The invention discloses a production method of polyamide-6 fiber. The production method comprises the following steps: a, adding polyamide-6 chips to a screw extruder, and carrying out melted extrusion; b, spinning; c, carrying out cooling forming on silk bundles by using cross air blow by using a cross air blow spinning cooling device and oiling the cooled silk bundles, wherein the cross air blow to the silk bundles in the cross air blow spinning cooling device is divided into an upper layer and a lower layer which are independent of each other, wherein the upper layer of cross air blow is obliquely blown out upwards, and the lower layer of cross air blow is taken as a main body and horizontally blown out from a cross air blow cylinder; d, carrying out pre-interlacing, drafting, interlacing and winding; e, carrying out inspection package. According to the production method disclosed by the invention, the cross air blow is adopted to substitute for side air blow, so that a melt is uniformly cooled in each direction; the phenomenon that the inner layers and the outer layers of the silk bundles cannot be uniformly cooled is effectively avoided, and the unevenness rate of the silk bundles is reduced, so that the molding quality of the silk bundles is greatly improved; the polyamide-6 fiber prepared by the production method disclosed by the invention is excellent in various performances and has favorable market competitiveness.

The invention discloses a liquid-cooled single cabinet data center. A heat exchanger is installed at that bottom end inside the cabinet. A separating plate is arranged inside shell. A coolant is arranged on the upper side of the separating plate and circulating water is arranged on the lower side of the separating plate. The lower side of the separating plate is provided with a cold water inlet pipe. The other side of the lower part of the separating plate is provided with a warm water outlet pipe. One side of the water outlet pipe of a circulating water pump is connected with a cold water outlet pipe. One side of the cold water outlet pipe is connected with a water distribution pipe which is provided with multiple water inlet branch pipes. Multiple cold plates are arranged inside the cabinet. A cooling coil pipe is arranged in an installing groove. One end of the cooling coil pipe is connected with the water inlet branch pipes. A water collecting pipe is arranged on the server side. One end of the water collecting pipe is connected with the warm water inlet pipe. Multiple return water branch pipes are arranged on the water collecting pipe. The other end of the cooling coil pipe is connected with the return water branch pipes. The heat exchanger is arranged at the bottom of the cabinet, and the coolant flows into the cooling coil pipe of the upper part of the cold plate through the water distribution pipe and the water inlet branch pipes in turn to cool and dissipate heat for the server so as to improve the stability of the server operation.

The invention provides a scanning galvanometer laser-high frequency pulse TIG composite welding method. A steel plate to be welded is made into a welding groove, and assembling and cleaning are carried out. A first workpiece to be welded is in butt joint with a second workpiece to be welded. The first workpiece to be welded and the second workpiece to be welded are thick steel plates. A welding seam to be welded with the selected width and length is formed between the two workpieces to be welded. A welding wire is used, laser beams generated by a scanning galvanometer laser-high frequency pulse TIG composite welding gun and a TIG welding gun are used for travelling welding for the welding seam in the direction from one end to the other end, and a mode of a straight-line swing, a circular swing or a "8-shaped" swing is adopted in the welding process. According to the scanning galvanometer laser-high frequency pulse TIG composite welding method, scanning galvanometer laser-high frequencypulse TIG composite welding is adopted, the probability of pore generation can be reduced, the welding seam property is improved, the welding seam heat input is reduced, and the welding deformation is reduced. The scanning galvanometer laser-high frequency pulse TIG composite welding method is suitable to be used as a method of swing laser-high frequency pulse TIG composite welding for members ofthick wall high-strength steel, stainless steel and the like.