38results about How to "Optimize cooling method" patented technology

A spring clip modular assembly for a printed circuit board that has a solderless connection with a junction box. The assembly allows for easier and more efficient removal and replacement of the printed circuit board and electrical components while meeting the IEC 61215 second edition temperature standards. In addition, the spring clip is configured to reduce the amount of normal force applied to the printed circuit board when wire tabbing is inserted into the clips.

The invention discloses a sieve hole built-in type annular laser cladding nozzle which comprises a laser head connection part, a middle part sleeve part and a nozzle part; the laser head connection part is composed of an upper connection sleeve which is connected with a laser head; the middle part sleeve part is composed of a sliding sleeve which is connected with the upper connection sleeve; protective glass is arranged between the lower end of the sliding sleeve and the upper end of a center sleeve; a protective glass water cooled jacket is in threaded connection with the sliding sleeve and the center sleeve; a protective gas hole is formed in the center sleeve; a nozzle part is composed of a conical nozzle core which is connected with the center sleeve; and the outer side of each of the conical nozzle core and the center sleeve is sequentially provided with a powder inlet sleeve, a gas inlet sleeve and a water cooled jacket. The sieve hole built-in type annular laser cladding nozzle overcomes the disadvantages that the service life is short, a powder convergence diameter cannot be regulated, and the existing laser cladding nozzle cannot be suitable for powder particles in different sizes.

The invention discloses an emergency in-vitro cooling device. The emergency in-vitro cooling device comprises a fixing base and a bracket, one side of the fixing base is connected with the bracket through a support rod, the bracket is rectangular, and cross rods and side rods of the bracket are provided with first branch rods, second branch rods and third branch rods respectively; each first branch rod is connected with an ice water bag, and each ice water bag is connected with a semiconductor refrigeration sheet; a first side rod is provided with a first container, each second branch rod is provided with a first wiping piece in a communicated mode, each first wiping piece is communicated with the first container through a first pipeline, and a first flow controller is arranged on each first pipeline; a second side rod is provided with a second container, the second container is connected with a thermostat, a second wiping piece is arranged on each third branch rod, each second wiping piece is communicated with the second container through a second pipeline, and a second flow controller is arranged on each second pipeline. According to the emergency in-vitro cooling device, a plurality of cooling modes and usage methods are integrated, and the device has the advantages of being convenient to use, good in cooling effect and suitable for different patients to use.

The invention discloses a colorful co-extruded plastic pipeline. The pipeline comprises a PVC base material and an ASA resin modified layer, wherein the ASA resin modified layer is prepared from the following components in percentage by mass: 5-45 percent of polycarbonate, 8-20 percent of PMMA, 0.1-0.4 percent of lubricant, 0.2-1.2 percent of dispersant, 0.4-0.8 percent of antioxidant, 0.25-0.7 percent of ultraviolet absorbent, 2-8 percent of pigment, 6-8 percent of calcium carbonate, 0.3-0.8 percent of silicon dioxide, 3-6 percent of stabilizer and the balance of ASA resin. The invention further discloses a particular method for compounding the PVC base material and the ASA resin modified layer by means of co-extrusion molding. The color durability of the colorful co-extruded plastic pipeline is greatly improved, and the prepared pipeline has uniform wall thickness and excellent surface performance.

The invention relates to a reverse lubrication for pushing face of huge journal bearing and the lubricating oil cooling method, belonging to the bearing technology area. In the invention, the lubricating oil carried by left impeller with oil thrower disc and oil scraping plate supplies to the right pushing face by left oil inlet channel, on the opposite hand, the lubricating oil carried by right impeller with oil thrower disc and oil scraping plate supplies to the left pushing face by right oil inlet channel. After bearing and pushing face are lubricated by the lubricating oil, the lubricating oil returns to the oil pool by oil return pipe and it is cooled by cooler effectively so as to ensure that the pushing face can obtain full lubrication and cooling to form continuous oil film under the condition that the bearing is inclined. The invention can ensure continuous stable lubrication with oil film is formed under the condition that the bearing is inclined so as to improve the stability of bearing and avoid the loss of huge equipments such as large ball mill, rotary kiln, ship propulsion motor and cooling machine so on, because of the bearing failure.

The invention discloses a circular blowing polyester spinning cooling device. The device is composed of two parts, namely a blowing device and air-conditioning systems; the blowing device comprises a frame, a lifting cylinder, a lifting rod, a first air inlet pipe, a second air inlet pipe, a first air duct, a second air duct and a guide duct; a first annular cavity is arranged outside the first air duct, while a second annular cavity is arranged outside the second air duct and a third annular cavity is arranged outside the third guide duct; a first annular air equalizing cover is arranged outside the first annular cavity, while a second annular air equalizing cover is arranged outside the third annular cavity; the inlet pipeline of the first annular air equalizing cover is communicated with the first air inlet pipe; the inlet pipeline of the second annular air equalizing cover is communicated with the second air inlet pipe; the first air-conditioning system provides the first air inlet pipe with cooling air, while the second air-conditioning system provides the second air inlet pipe with cooling air. According to the circular blowing polyester spinning cooling device, a circular blowing cooling manner is adopted, air can be fed in each direction so that nascent fibers can be evenly cooled in each direction, and meanwhile, the upper and lower layers of circular blowing are evener, and the fiber cooling effect is good.

A cooling structure for a power system, including a drive motor, a motor controller, a pump, a radiator, and a coolant; the drive motor includes a motor inner shell and a motor shell, and the motor shell is sleeved outside the motor inner shell and forms a The first liquid cooling chamber for circulating the cooling liquid. The motor controller includes a motor controller housing and a partition accommodated in the motor controller housing; the partition divides the motor controller housing into a controller housing chamber and a second liquid cooling chamber, the The first liquid cooling chamber communicates with the second liquid cooling chamber. The cooling liquid flows from the pump into the second liquid cooling cavity of the motor controller, then flows into the first liquid cooling cavity of the driving motor, flows out to the radiator, and then flows back to the pump. The cooling structure of the power system provided by the present invention optimizes the volume and cooling mode of the power system, thereby realizing light weight of the system and improving the cooling capacity of the system.

The invention discloses high-carbon and high-boron wear resistant steel for an impeller. The wear resistant steel comprises the following components in percentage by mass: 0.65-1.0% of C, 0/3-0.8% of Si, 1.0-1.5% of Mn, 1.0-2.0% of Cr, 0.4-0.8% of B, 0-0.04% of P, 0-0.04% of S, 0.05-0.2% of Ti, and the balance of Fe. The wear resistant steel is prepared by the following steps: (S1) all raw materials are weighed by the mass percentages, and are cast to form after being smelted to obtain a semi-finished wear resistant steel; (S2) the semi-finished wear resistant steel obtained in the step (S1) is put in a furnace to heat up to the temperature of 270-290 DEG C; after the temperature of 270-290 DEG C is kept for 115-125 min, the temperature is increased to the temperature of 640-670 DEG C; after the temperature of 640-670 DEG C is kept for 230-250 min, the temperature is increased to the temperature of 1000-1100 DEG C; after the temperature of 1000-1100 DEG C is kept for 200-220 min, the oil quenching is performed in quenching oil with the oil temperature of 110-130 DEG C; the quenching time is 12-15 min; the temperature from the room temperature to 100 DEG C is increased to the temperature of 375-385 DEG C by the heating speed of 20-100 DEG C/h in a heat insulating furnace after the oil quenching; after the temperature of 375-385 DEG C is kept for 470-490 min, the temperature is slowly decreased to the room temperature by 470-490 min; and then, the wear resistant steel is obtained. The wear resistant steel has good comprehensive performance.

The invention discloses a recycling device for thermal power station tail water and a utilizing method. The recycling device for the thermal power station tail water is characterized in that a refrigerating compressor (11) is directly driven through a water turbine (1); a first condenser (12) and a second condenser (13) in a refrigerating cycle system are arranged in a pressure forebay (7) and are cooled by water; a natural refrigerating manner is adopted for a second evaporator (32) in winter, and a mechanical refrigerating manner is adopted for the second evaporator (32) in summer and transition seasons; the first refrigerating compressor (11), a second air pipe (17), a first evaporator (14), a first expansion valve (13), a first liquid pipe (16), the first condenser (12) and a first air pipe (15) are sequentially connected in series; and the first evaporator (14), a chilled water returning pipe (26), an auxiliary machine equipment cooling water system (23), a chilled water supplying pipe (27), a pump set (9) and a water filter (22) are sequentially connected in series. Compared with the prior art, the recycling device has the beneficial effects of cyclic water use, cascading water use and multiple purposes of one kind of water are achieved.

The invention relates to a heat treatment process development and improvement method of a martensitic stainless steel 1Cr17Ni2 screw. The process comprises a charging procedure, a quenching procedure, a quenching cooling procedure and a tempering and tempering cooling procedure. According to the heat treatment process method, by improving heat treatment process parameters such as the quenching temperature, the tempering temperature and the quenching medium, the quenching temperature and the tempering temperature are greatly reduced, original oil medium quenching is changed into F2000 water-based liquid quenching, the using temperature of water-based liquid is strictly controlled, an austenitized workpiece is rapidly immersed into the water-based liquid to be cooled, and accordingly, martensite transformation is achieved. According to the process, the mechanical property index of 1Cr17Ni2 material products is improved, the one-time qualification rate is greatly increased and reaches 98% or above, due to the fact that the quenching temperature and the tempering temperature are greatly reduced, the electricity consumption cost is greatly reduced, the problem that original heat treatment parts are directly scrapped and cannot be produced due to cracks generated on the surfaces is solved, and performance indexes meet the requirements of design drawings after the process is improved. The water-based liquid is used for cooling, so that environmental pollution is avoided, and the medium consumption cost is reduced.

The invention provides a heat treatment method for 35CrMo steel. The method comprises steps as follows: (A) an alloy is subjected to heat treatment between 800 DEG C and 850 DEG C for 2-5 h, is subjected to water cooling for 40-60 s and is immersed in oil for cooling; (B) the alloy is subjected to heat treatment between 600 DEG C and 650 DEG C for 4-30 h and is subjected to natural air cooling, and then heat treatment is completed. By the aid of the heat treatment method for the 35CrMo steel, the traditional heat treatment technology is optimized, the quenching temperature is adjusted, the cooling manner after normalization and quenching is optimized, the stress inside a workpiece is eliminated with the heat treatment method, the crystal structure inside the workpiece is stable, the hardness is moderate, the problem that the steel is prone to cracking is solved thoroughly, the method is easy to operate, the operation process is environment-friendly, the two steps are closely connected,the referable specific method is provided for subsequent operation, and the heat treatment method is relatively excellent.

The invention relates to the technical field of metallurgical equipment, in particular to a vacuum consumable electrode furnace crystallizer cooling device and a cooling method thereof. The crystallizer comprises a crucible, a waterproof sleeve, a water distribution sleeve and a crystallizer shell are sequentially arranged on the outer wall of the crucible from inside to outside, a water inlet layer is arranged between the outer wall of the crucible and the waterproof sleeve, a water storage layer is arranged between the waterproof sleeve and the water distribution sleeve, and a water return layer is arranged between the water distribution sleeve and the crystallizer shell; a water inlet is formed in the lower part of the crucible and is connected with a water inlet and outlet; and one end of a water return port of the water return layer is arranged on the crystallizer shell, and the other end of the water return port is connected with a water return inlet. According to the vacuum self-consuming furnace crystallizer cooling device and the cooling method thereof, when molten metal in the crucible is crystallized, crystal grains are finer, arrangement is more regular, and the metallographic structure of a metal ingot is more uniform.

The invention relates to an afterburning-type supercritical-pressure gas-liquid fuel-generator combustion-chamber redundancy-cooling device, which relates to oilfield oil-production equipment and comprises a precombustion-chamber shell (1), a precombustion-chamber middle lining (2) and a precombustion-chamber inside lining (3). A water-cooling sleeve (6) is formed between the precombustion-chamber shell (1) and the middle lining (2), an air-cooling sleeve (7) is formed between the precombustion-chamber middle lining (2) and the inside lining (3), the inner wall of the air-cooling sleeve is provided with a plurality of tangential air nozzles (8), and air is sprayed out from the nozzles (8) and contacted with the surface of fuel gas on the inside lining to form a continuous air film to coola precombustion chamber. Cooling water is forced to flow through the water-cooling sleeve (6) to carry out regenerative cooling for the heated air in the air-cooling sleeve and implement redundancy cooling for the high-temperature fuel gas. In the invention, the burning-loss and damage problems of the inside lining of a steam-injecting generator are solved by a method of improving an equipment structure and a cooling mode.

The invention belongs to the technical field of internal combustion engines and particularly relates to a hybrid internal combustion engine cooler. The hybrid internal combustion engine cooler comprises a casing, a U-shaped pipe, a coolant filling tank, a circulation pump, a heat dissipation plate, a temperature sensor, a controller and control valves. Mounting brackets are symmetrically mounted on the left and right sides of the inner wall of the casing, and a liquid inlet pipe is inserted into the top left side of the casing. A liquid outlet pipe is inserted into the right side of the bottomof the casing. The U-shaped pipe is fixedly mounted on the two mounting brackets. The mounting brackets are welded to the top end of the U-shaped pipe. The liquid inlet pipe is welded to the bottom end of the U-shaped pipe. A water inlet pipe is arranged on the left side of the top of the casing. A drainage pipe is arranged at the center of the bottom of the casing. The control valves are correspondingly screwed to the drainage pipe and the water inlet pipe. By the adoption of the hybrid internal combustion engine cooler, the comprehensive effects of improving the cooling efficiency and precisely controlling the cooling time are achieved.

The invention discloses a carburizing method suitable for an instillation type gas carburizing furnace, and belongs to the technical field of metal material heat treatment. According to the stage type carburizing method, the carburizing layer depth is divided, the heat preservation time is calculated section by section, and the total carburizing heat preservation time is obtained through accumulation, so that the carburizing depth accuracy can be achieved, and the carburizing layer depth uniformity is ensured; and meanwhile, carbon black accumulation and decarburization phenomena on the surface of the carburized product are avoided.

The invention discloses a high-hardness highly-wear-resistant metal material used for sports equipment. The high-hardness highly-wear-resistant metal material comprises the following raw materials in percentage by weight: 0.42-2.78% of C, 0.1-0.7% of Si, 0.10-0.35% of N, 0.1-0.3% of Mn, 15-25% of Cr, 0-0.05% of P, 0-0.05% of S, 0.10-0.20% of Al, 0.10-0.26% of B, 0.32-0.48% of V, 0.18-0.25% of Mo, 0.2-1.0% of Y, 0.02-0.12% of Nb and the balance Fe. The invention further discloses a preparation method for the high-hardness highly-wear-resistant metal material used for sports equipment. A product is obtained by adopting a four-stage heating method and a nitrate bath quenching method. The product is good in wear resistance, is high in hardness, is excellent in comprehensive performance and is long in service life; and process steps are simple and easy to implement.