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46results about How to "Reduce operating temperature" patented technology

Method for rapidly eliminating dendritic segregation in deformed high-temperature alloy ingot by pulse current

ActiveCN111575619AConstant current densityIncreased diffusion rateIngotSuperalloy
The invention relates to the technical field of turbine disk preparation, and provides a method for rapidly eliminating dendritic segregation in a nickel-based deformed high-temperature alloy ingot for a turbine disk by pulse current (mainly aimed at the second stage of traditional homogenization heat treatment). Under the coupling effect of the pulse current and joule heat, the diffusion abilityof segregation element atoms is greatly enhanced, and the dendritic segregation can be quickly eliminated under the pulse current external field. The parameter range of the pulse external field processing is as follows: the frequency is 3000Hz, the voltage is 0.1V-100V, the current density is 1A/mm<2>-150A/mm<2>, and the processing time is 5min-20h. Compared with the long-time high-temperature treatment in the traditional single thermal field, the method can quickly eliminate dendritic segregation under suitable pulse parameters, and realizes the uniform distribution of segregation elements; and the high-temperature alloy after treatment has relatively low strength, and is relatively conducive to the subsequent cogging forging process. Not only that, the technical means of the invention isa green energy-saving bran-new means, is in line with the current concept and requirements of green development, and has broad application prospect.
Owner:UNIV OF SCI & TECH BEIJING +1

Anti-deformation foot roll combination device for sector section of large square blank and application method of anti-deformation foot roll combination device

The invention discloses an anti-deformation foot roll combination device for a sector section of a large square blank. A through hole penetrates the two ends of a whole center shaft with the center line of the center shaft as the center. The through hole comprises a water inlet and a water outlet. The end, close to the water inlet, of the center shaft is provided with a first end cover board. The end, close to the water outlet, of the center shaft is provided with a second end cover board. A first foot roll, a second foot roll, a third foot roll and a fourth foot roll are sequentially arranged between the first end cover board and the second end cover board in a sleeved manner. A first locating ring is installed at the joint of the first foot roll and the second foot roll. A shaft ring is arranged at the joint of the second foot roll and the third foot roll. A second locating ring is installed at the joint of the third foot roll and the fourth foot roll. The invention further discloses an application method of the anti-deformation foot roll combination device for the sector section of the large square blank. When just delivered out of a crystallizer, a casting blank is guided. The combination device can guarantee that the casting blank can be smoothly guided into the sector section in the continuous casting process and the casting blank cannot be scratched or indented.
Owner:NANJING IRON & STEEL CO LTD

Pole type workpiece heating furnace

The invention discloses a pole type workpiece heating furnace which comprises a furnace body, wherein the front end of the furnace body is provided with a feeding hole, the rear end of the furnace body is provided with a discharging hole, a workpiece platform is arranged in the furnace body, at least two rows of longitudinally arranged stepping beams are arranged in the workpiece platform in a penetrating manner, a stepping mechanism used for driving the stepping beams to step is arranged on the lower part of the furnace body, a fireproof layer is arranged on the periphery of the inner side of the furnace body, a nozzle is arranged on the top of the furnace body, the upper surface of each stepping beam is of a zigzag structure, fireproof bricks are built on the upper surface of the workpiece platform, a discharging platform is arranged on the lower part of the discharging hole, an incline is arranged on the discharging platform, a plurality of discharging clamping plates which are transversely arranged and distributed along the longitudinal direction are arranged on the incline, the discharging clamping plates are hinged on the incline and sinking grooves in which the discharging clamping plates can be turned are arranged on in the incline. The planes of the zigzag structures ensure that stabilizing poles are neatly arranged in the stepping beams or furnace body in a process of conveying into a furnace cavity for heating, therefore, the stabilizing poles can be heated uniformly without easily deforming, the working efficiency can be increased, and the product quality is improved.
Owner:冷延敏

Circulating cooling system for gearbox lubricating oil of combined land preparation machine

The invention discloses a circulating cooling system for gearbox lubricating oil of a combined land preparation machine, belonging to agricultural machinery. A rack assembly is provided with a stubble ploughing main gearbox, a rotary tillage main gearbox, a stubble ploughing side gearbox and a rotary tillage side gearbox, wherein the stubble ploughing main gearbox and the rotary tillage main gearbox are respectively and fixedly provided with a first oil pump and a second oil pump, a first connecting oil pipe provided with a first filter is used for communicating the first oil pump with the stubble ploughing main gearbox, a lubricating oil heat-dissipation output pipe and a return pipe of the stubble ploughing gearboxes are used for communicating the first oil pump, the stubble ploughing side gearbox and the stubble main gearbox to form a lubricating oil circulating cooling system of the stubble ploughing gearboxes; and a second connecting oil pipe provided with a second filter is usedfor communicating the second oil pump with the rotary tillage main gearbox, and a lubricating oil heat-dissipation output pipe and a return pipe of the rotary tillage gearboxes are used for communicating the second oil pump, the rotary tillage side gearbox and the rotary tillage main gearbox to form a lubricating oil circulating cooling system of the rotary tillage gearboxes. The circulating cooling system disclosed by the invention is reasonable in design, has a good effect of cooling the lubricating oil, and has a long service life.
Owner:哈尔滨市农业机械化研究所

Rock breaking method and device of cutterhead based on beveling angle high-pressure ice jet space-time arrangement

The invention discloses a rock breaking method of a cutterhead based on beveling angle high-pressure ice jet space-time arrangement. The method comprises the following steps that step one, high-pressure ice jet flow jetted by a first-position mixed jet flow jetting device is adopted to form an inclined ice force cutting groove in a rock body, and an inverted trapezoidal boss structure is formed; step two, the center of the inverted trapezoidal boss structure is rolled by adopting a mechanical hob to form a regular trapezoidal rock boss; at the moment, a to-be-cut rock ridge part of which the strength is greatly reduced after being rolled by the hob exists below the mechanical hob; step three, the regular trapezoidal rock boss is segmented again through the high-pressure ice jet flow jettedby a second-position mixed jet flow jetting device; and step four, the residual rock mass crushed by rolling of the mechanical hob in step two and the regular trapezoidal rock boss segmented in stepthree are removed by using a mechanical scraper. The rock breaking method has the advantages that the rock breaking efficiency is improved and the rock breaking energy consumption is reduced. The invention further discloses a rock breaking device of the cutterhead based on beveling angle high-pressure ice jet space-time arrangement.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI

Circulating water cooling structure and method for coke discharging device of dry distillation furnace

The invention relates to a circulating water cooling structure and method for a coke discharging device of a dry distillation furnace. The coke discharging device comprises a shell, a coke dischargingroller, a rotor shaft and a driving device, wherein the driving device drives the coke discharging roller to rotate through the rotor shaft, a plurality of hoppers are arranged on the coke discharging roller in the axial direction and the circumferential direction, and the rotor shaft is a rotor hollow shaft; and the portion, except for the hoppers, of a roller body of the coke discharging rolleris provided with a water-cooling jacket composed of an inner-layer roller body and an outer-layer roller body, the inner-layer roller body is provided with water inlets to be connected with a water inlet pipe and is provided with water outlets to be connected with a water outlet pipe, and the water inlet pipe and the water outlet pipe are arranged in the rotor hollow shaft in a penetrating mode and are connected with an external circulating water inlet pipeline and an external circulating water return pipeline through rotary sealing joints correspondingly. According to the structure and the method, circulating cooling water is introduced into the coke discharging roller to play a role in cooling the rotor shaft and the coke discharging roller of the coke discharging device and play a rolein cooling and complementally quenching semi-coke in the hoppers, so that smoothness of discharging and uniformity of temperature are guaranteed, and the service life of the coke discharging device is effectively prolonged.
Owner:ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC

Light fitting of high-power LED street light with external heat sink

A high power LED street lamp with an external radiator of the invention comprises a main housing of the lamp, a shade, an LED lamp, an external radiator and a power circuit system. The main housing ofthe lamp comprises a housing (1), a hot tube connector (2), an LED lamp holder (3), a hot tube (8) and a radiating component. One end of the main housing of the lamp is provided with the hot tube connector (2). One end of the hot tube connector (2) is provided with not less one piece or one group of hot tubes connected with the LED lamp holder (3). The other end of the hot tube connector (2) is provided with at least one piece or one group of hot tubes connected with the external radiator. The external radiator consists of not less than two unit components. A radiator is arranged in the design scheme, thus being able to quickly transfer out the heat generated by a super-high power LED when in work; thereby not only being able to effectively meet the radiating demand for the high power LEDlamp, but also being able to lead the working condition temperature of a super-high power LED street lamp to be lower, lead the service life of the super-high power LED street lamp to be prolonged, effectively solve the radiating technical difficulty of high power LED, and can lead the super-high power LED street lamp to realize industrialized mass production and use.
Owner:DONGGUAN CLED OPTOELECTRONIT TECH

Crusher

The invention discloses a breaker which comprises a seat body, a breaking unit, a cooling unit, a control unit and a memory unit, wherein the seat body is provided with a holding trough and a temperature control room; the temperature control room is annularly arranged outside the holding trough; an input port and an output port are formed in the outer wall surface of the seat body and communicated with the temperature control room respectively; the breaking unit is provided with a breaking member and a power source; the breaking member is arranged in the holding trough; the power source is connected with the breaking member; compared with the input port, the output port is closer to the power source; the cooling unit is provided with a circulating pipeline and a compressor; the circulating pipeline is connected with the compressor, the input port and the output port; the control unit is provided with a sensing component and a monitoring component; the sensing component is arranged in the holding trough; the monitoring component is electrically connected with the sensing component and the compressor; the memory unit is electrically connected with the sensing component and the monitoring component; and the temperature control room can perform heat exchange with the holding trough so as to maintain appropriate temperature of the holding trough.
Owner:丰宁鑫源矿业有限责任公司

Pure-hydrostatic tube mill

The invention discloses a pure-hydrostatic tube mill comprising a feeding device, a feeding end supporting system, a rotary part, a discharging end supporting system, a discharging device and a lubrication and control station. The feeding end supporting system (3) of the rotary part (4) is provided with a flat-seat-type pure-hydrostatic slipper moving bearing structure; the discharging end supporting system (5) of the rotary part is provided with a flat-seat-type pure-hydrostatic slipper axial anti-thrust bearing structure; and the flat-seat-type pure-hydrostatic slipper moving bearing structure and the flat-seat-type pure-hydrostatic slipper axial anti-thrust bearing structure lubricate a pure-hydrostatic slipper bearing through the high-pressure oil of the lubrication and control station so as to form a thicker oil film between a cylinder sliding ring (7) and a slipper bearing pillow (8) and realize full-liquid lubrication. The invention can solve the problem of overhigh temperatureof the slipper bearing in a common tube mill and realize the conversion of the support of a large-size cement mill by a dynamic-pressure bearing or a dynamic and static pressure bearing to the support by a pure-hydrostatic slipper bearing so that the cement mill becomes high-efficiency grinding equipment.
Owner:CITIC HEAVY INDUSTRIES CO LTD +1

Double-adjustable damping shock absorber

PendingCN113389839APrecise adjustment matchingClear gear feedbackSpringsShock absorbersSuspension (vehicle)Mechanics
The invention discloses a double-adjustable-damping shock absorber which comprises an inner cylinder barrel and an outer cylinder barrel. An inner cavity of the inner cylinder barrel serves as a working cylinder, a reserved gap between the inner cylinder barrel and the outer cylinder barrel serves as an oil storage cylinder, the upper end of the outer cylinder barrel is connected with the upper end of the inner cylinder barrel in a sealed mode through a guider, a piston rod is inserted into the guider, a recovery valve system is arranged at the lower end of the piston rod, and a recovery adjusting mechanism used for adjusting the oil flow volume between an upper working cylinder and a lower working cylinder of the recovery valve system is further arranged corresponding to the recovery valve system. The lower end of the outer cylinder barrel and the lower end of the inner cylinder barrel are connected in a sealed mode through a compression valve system, and a compression adjusting mechanism used for adjusting the oil flow volume between the working cylinder and the oil storage cylinder is further arranged corresponding to the compression valve system. According to the double-adjustable-damping shock absorber, the matching performance of the compression damping after the recovery damping is adjusted can be accurately adjusted according to user requirements, and therefore it is ensured that the vehicle suspension performance is in the optimal state.
Owner:重庆国贵赛车科技股份有限公司

Anti-deformation foot roll combination device for bloom segment and its application method

The invention discloses an anti-deformation foot-roller assembly device for a sector of a bloom. A through hole is arranged at both ends of the entire central axis with the center line of the central axis as the center. The through hole includes a water inlet and a water outlet. The central axis is close to One end of the water inlet is provided with a first end cover plate, the end of the central axis close to the water outlet is provided with a second end cover plate, and the first end cover plate and the second end cover plate are sequentially sleeved with a second end cover plate. One foot roller, the second foot roller, the third foot roller and the fourth foot roller, the first positioning ring is installed at the junction of the first foot roller and the second foot roller, the junction of the second foot roller and the third foot roller A collar is provided, and a second positioning ring is installed at the junction of the third foot roll and the fourth foot roll; the invention also discloses an application method of the anti-deformation foot roll combination device of the sector of the bloom; When just out of the crystallizer, it acts as a guide for the cast slab, and the device of the invention can ensure that the cast slab can be smoothly introduced into the fan section during the continuous casting process, and the cast slab will not cause scratches and indentations.
Owner:NANJING IRON & STEEL CO LTD

Cutterhead based on spatio-temporal arrangement of oblique angle high-pressure water jet

The invention discloses a cutter head based on the space-time arrangement of high-pressure water jets with oblique cutting angles. It includes No. 1 high-pressure water nozzle, mechanical hob, No. 2 high-pressure water nozzle and mechanical scraper; No. 1 high-pressure water nozzle and No. The high-pressure water nozzles at the first position are arranged in opposite directions; when the high-pressure water nozzles at the second position spray the rock mass, the incident angle is 45 degrees, and the incident point is the midpoint of the hypotenuse of the rock mass; the high-pressure water nozzles at the first position, the mechanical hob, and the second The high-pressure water nozzle and mechanical scraper cut grooves according to the water jet sprayed by the high-pressure water nozzle of the first position, the mechanical hob rolls down the trapezoidal rock mass, and the high-pressure water jet sprayed by the high-pressure water nozzle of the second position divides the trapezoidal rock convex block And the rock-breaking mode installation arrangement of mechanical scraper cutting and removing rock mass. The invention has the advantages of reducing the application ratio of mechanical energy, improving the crushing efficiency of rocks, effectively reducing the mechanical wear of cutters, and reducing the operating temperature of the working face.
Owner:INST OF ROCK & SOIL MECHANICS CHINESE ACAD OF SCI +1
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