12results about How to "Reduce temperature loss" patented technology

The application provides a semiconductor process equipment control method and a semiconductor process equipment; in the semiconductor process equipment control method, when the deposition process chamber is idle for a long time, the target material cleaning process is performed on the deposition process chamber, the wafer is pretreated in the degassing process chamber, and after the pretreatment process and the target material cleaning process are completed, the deposition process is performed on the pretreated wafer in the deposition process chamber, so that the pretreated wafer can enter the deposition process chamber for process processing under the condition of low thermal energy loss after the target material cleaning process is completed, thereby not only reducing the temperature loss of the pretreated wafer before process processing, effectively reducing the resistance change caused by the idle effect of the deposition process chamber, improving the stability of the sheet resistance of the thin film, but also improving the production capacity of the semiconductor process equipment.

The present application provides a kind of engagement mechanism, working device and working machine, including engagement, supply unit, micro channel unit and give unit, engagement is equipped with engagement surface, for the temperature control electronic component of pasting, supply unit is equipped with the main flow channel of access, shunt and multiple branch flow channel in engagement, to flow body of the temperature of pre-set even shunt to multiple branch flow channel, micro channel unit is equipped with multiple micro channel in engagement, and the fluid of the temperature of pre-set can be flowed into multiple branch flow channel, and the intensive multi-zone micro area heat exchange is made with engagement surface to even temperature control electronic component, give unit is equipped with the main flow channel of access, flow channel and multiple branch flow channel in engagement, and the fluid of multiple micro channel input has been heat exchanged and flow output.

The utility model discloses a kind of even feeding devices for phosphorus pentachloride production, it is related to phosphorus pentachloride production technical field, including base, the top of base both ends is fixedly connected with U-shaped support seat, the top of base one end is fixedly connected with L-shaped support plate, both ends The top of U-shaped support seat is fixedly connected with heat-insulating jacket device, the inner side wall top of heat-insulating jacket device is fixedly connected with storage bin between, the bottom output end of storage bin is fixedly connected with electric valve, the other end of electric valve is fixedly connected with buffer tank, the base provided in the utility model, on the basis of realizing heat preservation protection to avoid affecting even feeding, increase inert gas protection to avoid causing metamorphosis simultaneously, to solve the temperature of the existing phosphorus pentachloride production feeding device is difficult to control due to lack of effective heat preservation structure, and lack of inert gas protection causes security and metamorphosis problem.

This application provides a radially inlet anti-icing bleed air collecting ring structure, belonging to the field of aero-engine technology. It includes a collecting ring welding assembly, an inlet casing, and an inlet support plate. The inlet support plate is welded to the inlet casing. The collecting ring welding assembly includes a collecting ring, an inlet pipe, and a collecting ring cover plate. The collecting ring cover plate and the collecting ring form an annular collecting cavity. The inner wall of the collecting ring is fitted onto the outer side of the inlet casing assembly. A radial ventilation hole is provided on the inner wall of the collecting ring. An anti-icing bleed air inlet hole is provided on the inlet support plate. The radial ventilation hole and the anti-icing bleed air inlet hole are connected by a bleed pin. The inner cavity of the inlet support plate communicates with the collecting cavity through the through hole of the bleed pin. A bleed pin mounting hole is provided on the outer wall of the collecting ring, and this hole is sealed by a plug. One end of the inlet pipe is connected to the outer wall of the collecting ring and communicates with the collecting cavity, while the other end is connected to the anti-icing bleed air circular pipe. This application achieves a compact and detachable design, reducing pressure and temperature losses during the flow of anti-icing bleed air.

The application discloses a ceramsite propping agent rotary kiln with waste heat recovery function and a use method, relates to the technical field of rotary kilns, and comprises a preheating kiln, a firing kiln, a cooling kiln, a fixed connection ring, a combustion pipe, two first transmission units and two second transmission units. The preheating kiln, the firing kiln, the fixed connection ring and the cooling kiln are sequentially connected, one end of the preheating kiln is connected with a feeding end, one end of the cooling kiln is connected with a discharging end, one end of the combustion pipe penetrates through the fixed connection ring from the outside, and the other end of the combustion pipe is located in the firing kiln. A waste heat exchange assembly is arranged between the preheating kiln and the cooling kiln, the two first transmission units are arranged between the preheating kiln and the firing kiln, the two second transmission units are arranged between the firing kiln and the cooling kiln, and the combustion pipe penetrates into the firing kiln through the fixed connection ring. Compared with the design that the combustion pipe is inserted into the kiln from the end of the rotary kiln in the general case, the time of the flame passing through the combustion pipe can be reduced.

This utility model discloses a clamping fixture suitable for high-temperature tensile testing, relating to the field of tensile equipment technology. It includes an environmental chamber body and a threaded round bar. Hydraulic telescopic rods are installed on the inner walls of both the upper and lower ends of the environmental chamber body via tension sensors. Connecting blocks are connected to opposite ends of the two hydraulic telescopic rods, and tie rod structures are connected to both connecting blocks. Each tie rod structure has a slot, into which a clamp head is inserted. The clamp head has threaded holes, and both ends of the threaded round bar are screwed into the two threaded holes respectively. In this utility model, the clamp head is installed and removed through the insertion and engagement of the clamp head and the slot, allowing for the loading and unloading of the threaded round bar outside the environmental chamber body. By loading and unloading the clamp head and sample as a whole inside the environmental chamber body, the purpose of conducting high-temperature tensile tests can be achieved quickly and safely, significantly reducing the operation time inside the environmental chamber body, thereby reducing temperature loss and greatly improving testing efficiency and safety.

This invention discloses a gold extraction process and system using whole-sludge cyanidation without pre-concentration, relating to the field of gold beneficiation and smelting technology. It solves the problems of low grinding efficiency, complex processes, difficulty in recovering coarse gold particles, and high safety risks in existing processes. The process includes raw ore crushing, primary grinding, gravity separation, hydrocyclone classification, secondary grinding-leaching, leaching-adsorption, smelting, and tailings treatment; the system includes corresponding crushing, primary grinding, gravity separation, hydrocyclone classification, secondary grinding-leaching, leaching-adsorption, smelting, and tailings treatment units. The key innovation is: gravity separation recovers coarse gold particles after primary grinding; the secondary stage uses an azin mill to achieve synergistic grinding-leaching, eliminating the pre-concentration stage; and the filtrate reagents are recycled. This invention features a simplified process, low energy consumption, high gold recovery rate, and safe and environmentally friendly operation, suitable for gold extraction from gold ores containing coarse gold particles that require fine grinding.

The invention relates to the technical field of iron and steel smelting, in particular to a molten iron desulfurization method which comprises the steps that a desulfurizing agent is sprayed into molten iron through a spray gun, so that the sulfur content in the molten iron is reduced, molten iron desulfurization is divided into a first stage and a second stage in sequence, and the total spraying amount of the desulfurizing agent serves as the standard; in the first stage, the spraying amount of the desulfurizing agent is 80%-90% of the total spraying amount of the desulfurizing agent, in the second stage, the spraying amount of the desulfurizing agent is 10%-20% of the total spraying amount of the desulfurizing agent, and in addition, the spraying speed of the desulfurizing agent in the first stage is greater than that in the second stage. The method solves the contradiction among efficiency, desulfurizer utilization rate and temperature loss in the traditional desulfurization process, realizes double improvement of desulfurization production efficiency and desulfurizer utilization rate, reduces molten iron temperature loss in the desulfurization process, and reduces the raw material and energy cost of steel smelting.

The application provides a light diesel tight-coupling SDPF high-efficiency flow-guiding distributed mixing device, the gas inlet end of the mixing device is connected with the gas outlet end of a DOC component, the gas outlet end of the mixing device is connected with the gas inlet end of an SDPF component, the DOC component and the SDPF component are arranged in a V shape; a nozzle base is arranged at the upper end of the mixing device, the nozzle base is used for mounting a urea nozzle, the urea nozzle is communicated with the inside of the mixing device; a flow guide plate is arranged in the inside of the mixing device, a dispersion breaking plate component is connected with the flow guide plate, and a cyclone plate is arranged at the outlet end of the mixing device. The mixing device can realize urea flow guiding and dispersion in a narrow space, improve the urea decomposition efficiency, realize the double-effect mixing effect of urea and soot, improve the uniformity of urea and soot distribution on the end surface of the SDPF, and prevent the urea from being directly injected to the bottom of the SDPF and deposited in the bottom in a compact space.

The invention relates to the technical field of engineering test equipment, in particular to an enhanced asphalt mixture Marshall compaction test tamping device and method. The tamping device comprises a tamping barrel, a tamping piece and a driving assembly; a tamping cavity used for being filled with an asphalt mixture is formed in the tamping barrel, a material scraping lubricating plate is arranged in the tamping cavity, holes are formed in the material scraping lubricating plate, and the holes comprise a material scraping hole and a lubricating hole; the tamping piece comprises a pressing plate and a plurality of tamping rods, and the tamping rods are all installed on the bottom side of the pressing plate and connected into the holes of the scraping lubricating plate in a penetrating mode. The driving assembly is installed outside the tamping barrel and used for driving the tamping piece to reciprocate in the axial direction of the tamping cavity so as to tamp the asphalt mixture. The tamping device ensures that a mixture is uniformly distributed in a test mold before being compacted, guarantees the volume index and mechanical property stability of a formed test piece, and improves the reliability of test data.

The application provides a high-toughness (alpha+beta) dual-phase magnesium-lithium alloy rod and a preparation method thereof, and contains, in percentage by mass, Li: 8-11%, Al: 2-6%, Sn: 1-5%, rare earth elements (RE): 0.5-4%, Ca: 0-1%, Mn: 0-1%, Ag: 0-0.5%, and the balance of magnesium and inevitable impurities, wherein the total amount of the impurities in the magnesium-lithium alloy material is less than 0.1 wt.%. The processing procedure comprises vacuum melting to prepare an ingot, homogenization annealing, upsetting-extruding pre-deformation, blank straightening and cutting, multi-pass upsetting-drawing forming, low-temperature aging treatment, and mechanical processing of the rod. The application adopts a method combining multiple plastic deformations for the (alpha+beta) dual-phase magnesium-lithium alloy, promotes grain organization refinement and uniform distribution of strengthening phases, significantly improves the organization uniformity and mechanical properties, and finally prepares the high-toughness (alpha+beta) dual-phase magnesium-lithium alloy rod, with a rod diameter of greater than or equal to 200 mm, a room-temperature tensile strength of greater than or equal to 330 Mpa, and an elongation of greater than or equal to 10%.

This invention relates to an explosive granulation device, comprising a reciprocating arm (1), a screen (2), a grinding wheel (3), and an adjusting component (4); the reciprocating arm (1) comprises a symmetrically arranged left arm and a right arm, which reciprocate up and down in opposite directions around the center point where they connect; the two ends of the strip screen (2) are respectively fixed on the left and right arms of the reciprocating arm (1), forming a V-shaped structure; the grinding wheel (3) is disposed on the inner surface of the V-shape of the strip screen (2), and a spindle (7) is disposed on the axis of the grinding wheel (3); the adjusting component (4) is connected to both ends of the spindle (7) of the grinding wheel (3) and is used to adjust the contact pressure between the grinding wheel (3) and the surface of the strip screen (2). This invention has a simple structure, is easy to form a continuous production line with upstream and downstream equipment, is easy to control, and has high reliability; it occupies little space, has a wider range of product size applicability, good safety, and is convenient to maintain.