531 results about "Cooling speed" patented technology

The application discloses an easy-to-cut steel with excellent plasticity and drilling performance and a preparation method thereof, and the preparation method comprises the following steps: converter smelting, LF refining, continuous casting, hot rolling and air cooling line cooling; in the continuous casting step, the water quantity of a crystallizer is 130-140 m 3 / h, and the secondary cooling water quantity is 0.8-1.0 L / kg; in the air cooling line cooling step, the cooling speed is 1-1.5 DEG C / s from the spinning temperature to greater than 650 DEG C, and the cooling speed is 2-4 DEG C / s in the range of 650 DEG C-500 DEG C; under the condition of not adding easy-to-cut elements and increasing production cost, the plasticity and drilling performance of the easy-to-cut steel are significantly improved by controlling the manganese sulfide inclusion size, hardness and structure of the rolled material.

The invention discloses a manufacturing process of an NO7718 nickel base alloy nut for nuclear equipment. The manufacturing process comprises the steps of material preparation, hot forging, shot blasting, solid solution heat treatment, physical and chemical detection, finish machining, precipitation hardening heat treatment and detection packaging. The hot forging near-net forming technology is adopted, the shape of the nut blank is directly obtained through plastic deformation, the cutting allowance of machining is greatly reduced, a large number of raw materials are prevented from becoming sweeps, the material utilization rate is remarkably increased, and the raw material cost is effectively reduced; by accurately controlling the initial forging temperature, the final forging temperature and the cooling speed of hot forging as well as subsequent solution treatment and precipitation hardening treatment, grains can be refined, and the precipitation form and distribution of a strengthening phase can be controlled, so that the microstructure of the material is optimized, and the material obtains more excellent comprehensive mechanical properties such as higher strength, plasticity and toughness cooperation; and the harsh working condition requirements of nuclear equipment can be better met. The process provided by the invention ensures the stability and consistency of product performance.

The invention relates to an aluminum plate casting and rolling control method and system, and the method comprises the steps: collecting real-time technological parameters, including molten aluminum temperature, aluminum plate thickness, rolling speed, rolling pressure, cooling speed and surface quality information, in an aluminum plate casting and rolling process, and predicting aluminum plate temperature distribution, stress strain, thickness change and potential defects based on thermodynamics and mechanical models; the casting speed, the rolling speed, the rolling pressure and the cooling condition of the molten aluminum are dynamically adjusted, closed-loop control is achieved, the system comprises a data acquisition module, a data processing and analysis module, a control and execution module and a man-machine interaction and visualization module, and the system supports automatic correction of thickness deviation and surface defects, abnormal alarm and historical data analysis. The method adopts model predictive control, an artificial intelligence algorithm or a hybrid optimization algorithm to realize adaptive control. The method has the advantages that the thickness uniformity and the surface quality are optimized, the production efficiency and reliability are improved, and the safe, intelligent and efficient operation effect in the aluminum plate casting and rolling process is achieved.

The invention relates to a composite coating for a graphite mold and a preparation method of the composite coating. The composite coating comprises an yttrium-stabilized zirconia layer, a transition layer containing yttrium-stabilized zirconia and boron nitride and a boron nitride layer which are sequentially arranged from the inner surface of the graphite mold to the outside. The composite coating provided by the invention can reduce the cooling speed of a melt on a contact interface with the mold in the casting process, reduce the occurrence of cold shut, prolong the service life of the graphite mold and reduce the demolding resistance.

The utility model discloses a quick repair pavement patch for municipal engineering, and particularly relates to the technical field of road maintenance, the quick repair pavement patch comprises a pavement, a patch assembly and an adjusting assembly, and the patch assembly and the adjusting assembly are placed above the pavement; the patch assembly comprises a limiting groove plate, a mold plate and an insertion rod. Through the synergistic effect of the patch assembly and the adjusting assembly, the inserting rods are evenly inserted into asphalt filler in the vibration tamping process, vibration tamping is accelerated, air is exhausted, dense distribution is ensured, and the bearing capacity and durability of a road surface are improved; after the assembly is removed, a concave-convex structure is formed on the asphalt surface, the heat dissipation area is increased to accelerate the cooling speed, meanwhile, the anti-skid performance is remarkably enhanced by improving the roughness, and the driving safety in rainy days is guaranteed. In addition, the sliding design of the adjusting assembly can flexibly adjust the overlapping range of the first rectangular groove and the second rectangular groove, the size of the surface protruding block is controlled, the antiskid requirements of different traffic scenes are met, and the universality and adaptability of the device are enhanced.

The utility model relates to the technical field of automatic bagging and heat sealing of rice packaging bags, and discloses automatic bagging and heat sealing integrated equipment for rice packaging bags, which comprises a heat sealing machine and a conveyor belt, the bottom of the conveyor belt is fixedly connected with a support frame I, the top of the conveyor belt is provided with a position correcting component, and the conveyor belt is provided with a bagging machine. The outer wall of the conveying belt is fixedly connected to the outer wall of the heat sealing machine, a cooling assembly is arranged on the outer wall of the conveying belt and comprises an air blower, a second supporting frame is fixedly connected to the outer wall of the air blower, the outer wall of the second supporting frame is fixedly connected to the outer wall of the conveying belt, and a third supporting frame is fixedly connected to the outer wall of the conveying belt. According to the utility model, the heat seal is primarily cooled by the blower, and then the electric push rod drives the metal pressing plate to press downwards to be in contact with the metal pressing plate II to further cool and shape the heat seal, so that the cooling speed is accelerated through two-section cooling, and the production efficiency is improved.

The present application belongs to the field of rail material research and manufacturing, and specifically discloses a rail structure for a subway humid environment. According to the distribution of pearlite lamellar spacing, the rail head cross-section structure can be divided into cap layer 1, cap layer 2, cap layer 3 and base material layer. The pearlite lamellar spacing distribution of cap layer 1 is 130-150 nm, the pearlite lamellar spacing distribution of cap layer 2 is 90-120 nm, the pearlite lamellar spacing distribution of cap layer 3 is 140-170 nm, and the pearlite lamellar spacing distribution of the base material layer is 200-230 nm. The present application designs cap-shaped structures with different depths and different pearlite lamellar spacing in the rail head. By accelerating the cooling speed of the heat treatment of the hot-rolled rail in different stages, the reasonable gradient structure distribution of the pearlite structure of the rail material is realized, the expansion speed of the rolling contact fatigue crack of the rail in the humid environment to the internal material is effectively slowed down, the rolling contact fatigue damage is reduced, and thus the comprehensive performance and service life of the rail are improved.

The invention relates to the technical field of casting, in particular to a rapid cooling steel ingot module and a using method thereof. The rapid cooling steel ingot module comprises a rapid cooling steel ingot mold and an air cooling jacket; air cooling groove vertical ribs are arranged on the surface of the outer wall of the rapid cooling ingot mold to form air cooling grooves; the air-cooling jacket is arranged on the periphery of the rapid-cooling ingot mold, and the inner wall of the air-cooling jacket and the air-cooling groove vertical ribs jointly form a spiral air-cooling channel; the top of the air cooling channel is connected with an air outlet pipe connector arranged on the upper portion of the air cooling jacket, the bottom of the air cooling channel is connected with an air inlet pipe connector arranged on the lower portion of the air cooling jacket, and the air inlet pipe connector is connected with a compressed air source through an air inlet pipe. The air outlet pipe connector is connected with the heat exchange system through an air outlet pipe. The cooling speed of the steel ingot can be increased, sequential solidification from bottom to top is facilitated, then the defects of center segregation, center looseness and the like of the steel ingot are reduced, and the steel ingot quality and the metal yield are improved; the wall thickness of the ingot mold is obviously smaller than that of a traditional ingot mold, and the service life is obviously prolonged.

The invention relates to the technical field of welding, in particular to welding equipment for rotary cultivator cutter shafts with different sizes, which comprises a welding machine, a threaded rod is rotatably mounted in the welding machine, two groups of first threaded sleeves are slidably connected to the threaded rod, and clamps are fixedly mounted on the two groups of first threaded sleeves; an auxiliary assembly is installed on the welding machine, the auxiliary assembly comprises a first reciprocating lead screw fixedly connected with one side of the welding machine through an installation frame, and a second threaded sleeve is installed on the first reciprocating lead screw in a sliding mode. The threaded disc extrudes hot air in the piston pipe, the hot air in the piston pipe is transmitted into the circulating pipe to be circulated, the rotary tillage shaft is preheated, the situation that the cooling speed of the welding portion of the rotary tillage shaft is too high due to low temperature in winter is prevented, cracks are generated due to the fact that residual stress in a welding seam cannot be released in time is avoided, and it is ensured that the strength and toughness of a welding joint are consistent.

The utility model relates to the field of vacuum drying ovens, in particular to a vacuum drying oven with a cooling function, which comprises an oven body, a storage groove is arranged at the center of the outer wall of one side of the oven body, an oven door is arranged at the storage groove of the oven body, and a driving groove and a cooling groove are respectively arranged at two ends of the outer wall of the other side of the oven body. A cooling structure is mounted in the cooling groove of the box body; the cooling structure comprises an air inlet box, a cooling box and a fan which are installed on the inner wall of the cooling groove, a sealing plate installed on the outer wall of one side of the air inlet box and the cooling box, and a heat conduction pipe fixed to the center of the interior of the cooling box. The fan extracts external air through the air inlet box and conveys the external air into the storage groove, the air is mixed with hot air in the storage groove after filling the storage groove and enters the heat conduction pipe, and water is added into the cooling box, so that the air exhausted from the heat conduction pipe is cooled by the water, the taking-out of an object is accelerated, the efficiency is improved, and the cooling speed is increased.

The invention relates to the technical field of cooling dies, in particular to a composite conformal cooling die for silica gel breast rollover, which comprises a stamping shell internally provided with a driving unit, the inner top wall of the stamping shell is provided with an upper die mechanism, and the inner bottom wall of the stamping shell is provided with a lower die mechanism; the upper die mechanism comprises a main channel, branch channels arranged in an annular array with the main channel as the circle center, a flow increasing pipe, a mounting plate with the surface sprayed with a metal coating, cooling fins and a temperature control assembly. The temperature sensors are used for monitoring the temperature of different parts of the silica gel breast in real time, a driving motor is started according to the temperature change, a pushing plate extrudes a corresponding connecting plate, an abutting block and an abutting ring extrude a branch channel, the diameter of the branch channel is changed, and therefore the flow of an area with the low temperature is reduced, and the working efficiency is improved. And the area cooling effect of the area with the low temperature is reduced, so that the overall cooling speed of the silica gel prosthesis is similar, and the cooling uniformity in the silica gel prosthesis mold turning production process is improved.

The utility model belongs to the technical field of plastic uptake molds, and particularly relates to a refrigerator door liner plastic uptake mold which comprises a processing table, a portal frame, a vacuum pump, a rotating seat and an upper mold seat, wherein the rotating seat is rotatably mounted in the processing table, lower mold seats are arranged on the left and right sides of the top end of the rotating seat, the left side of the processing table is a cooling area, the right side of the processing table is a plastic uptake area, and a heater is arranged above the upper mold seat; the piston is arranged in the smooth through groove, an ejector rod is arranged on the piston and used for ejecting the forming inner container, an air inlet channel with the top end communicating with the smooth through groove is formed in the bottom end of the lower mold base, and the air inlet channel is used for guiding air blown out by the fan into the smooth through groove. According to the plastic uptake die, plastic uptake machining is carried out alternately through the two lower die bases, the idle time of a vacuum pump and a heater is shortened, and the overall plastic uptake machining rate is increased; and secondly, the inner container can be cooled and demolded, and the demolding and cooling speed of the inner container is increased.

The utility model relates to a cold -air machine with adjustable pedestal, including cold -air machine body, the pedestal that is fixedly arranged below cold -air machine body, the pedestal includes the square board that is arranged below cold -air machine body, the adjusting device that is arranged on the square board, a plurality of support legs that are fixedly arranged below the square board, the wheel that is respectively arranged on a plurality of support legs, the adjusting device includes the first motor that is fixedly arranged below the square board, the first gear that is fixedly arranged in the first motor output, the second gear that rotatably arranged below the square board and is engaged with the first gear, the carousel that is fixedly arranged on the second gear, the drive mechanism that is arranged on the carousel is used to drive the up-and-down swing of cold -air machine body. Use this cold -air machine, and cold -air machine body can swing up and down while carrying on autogyration, two kinds of movement modes do not interfere with each other, realize compound air supply mode, significantly increase the coverage area and air disturbance of cold air, promote the mixing and diffusion of cold air and indoor hot air, accelerate the overall cooling speed.

The application discloses a 75-60kg / m U75VH online heat treatment special-shaped rail for heavy haul railway and a heel end heat treatment method, wherein the heel end heat treatment method is provided for the 75kg / m forged 60kg / m U75VH heat treatment special-shaped rail, and the heat treatment cooling process of the heel end is controlled by controlling the heating temperature of the forged special-shaped rail at the heel end and controlling the air pressure, cooling speed and final cooling temperature of the rail head side at different positions (a forming section, a transition section and a heat affected zone), so that the structure and performance difference between the high-temperature forged heel end of the 75-60kg / m U75VH special-shaped rail and the base material can be effectively improved.

The application provides a local solid solution heat treatment device and method for girth weld of a stainless steel container, the side wall of the stainless steel container is provided with a girth weld, and the treatment device comprises: a ring-shaped sprayer arranged in the stainless steel container and adapted to the position of the girth weld and used for spraying a coolant to the girth weld; a pair of induction heaters arranged symmetrically outside the stainless steel container and close to the girth weld and used for heating the girth weld; and a plurality of thermocouples uniformly distributed around the girth weld and used for measuring the temperature distribution of the girth weld. The combination of the ring-shaped sprayer, the pair of induction heaters and the plurality of thermocouples realizes automatic control of the heating speed and the cooling speed of the solid solution heat treatment, ensures the comprehensive performance of the product weld and the base metal on both sides, avoids the problem of a large amount of drainage generated by the traditional cooling method, and saves resource consumption.

The invention discloses an eye therapeutic instrument shell injection molding machining mold, and relates to an injection mold, the eye therapeutic instrument shell injection molding machining mold comprises a first mold and a second mold matched with the first mold, cooling assemblies are arranged on the outer sides of the first mold and the second mold, each cooling assembly comprises a cooling base plate, and a cooling flow channel is formed in each cooling base plate; the cooling runners are communicated through communicating pipes, the communicated cooling pipelines are S-shaped, the middle parts of the communicated S-shaped runners are connected with a water injection pipe, the end parts of the S-shaped runners are communicated with a water drainage pipe, and the side surface of the first mold is provided with a discharging assembly for discharging injection molding parts. The injection mold has the beneficial effects that the injection mold is simple in structure and convenient to use, cooling assemblies are arranged on the two sides of the injection mold, the cooling effect is remarkably improved through cooperation of water cooling and air cooling, gas can be blown in through the gas inlet unit when an injection part is pushed out, product demolding is facilitated, and therefore the injection machining efficiency is remarkably improved; and the problem of low efficiency caused by low cooling speed is avoided.

The utility model discloses ton barrel production blow mould, including plastic particle melting mechanism, plastic embryo extrusion mechanism, replaceable mould cavity unit and blow moulding mechanism. Plastic particle melting mechanism is transported to embryo extrusion mechanism through spiral feeding stem with the molten plastic, and the embryo is cut off and falls into the upper and lower barrel body mould cavity, and blow moulding is completed through the cooperation of blow moulding mechanism by the rotation disc movement, and then the finishing and stripping of the finished product are completed through the turn after the selvedge finishing mechanism and stripping mechanism. Cooling water channel is equipped in the mould cavity to accelerate the cooling speed, and the upper and lower barrel body mould cavities realize locking through the wedge block drive of hydraulic cylinder. The device realizes the continuous, efficient blow moulding of ton barrel barrel body structure.

The invention relates to a plate shape control method in the rolling process of steel 30MnB5 for hot stamping forming. The plate shape control method in the rolling process comprises the working procedures of plate blank heating, rolling, cooling and coiling. In the cooling process, laminar cooling is used for cooling the strip steel to the coiling temperature, the cooling process is set as follows: cooling is performed in a sparse cooling mode, the cooling speed of the front section of laminar cooling is controlled to be 20-30 DEG C / S, the cooling speed of the rear section of laminar cooling is controlled to be 30-40 DEG C / S, and the total water amount of laminar cooling water spraying is set according to the ratio of the water amount of the front section to the water amount of the rear section of 1: 1.2-1: 1.4. The method is easy to implement, and the good strip shape control quality of the steel strip can be obtained through reasonable process design. And additional equipment and investment are not needed. By means of the method, the strip shape of the 30 MnB5 steel strip of the hot stamping forming steel of 5-10 mm is well controlled, the unevenness of the strip steel is not larger than 10 mm / m after the strip steel is flattened, and the wave shape judgment reduction amount and strip shape objection complaints caused by the poor strip shape are completely eradicated.

This invention relates to the field of rail manufacturing technology, specifically disclosing a turnout rail with uniform hardness distribution on both sides of the rail head and its manufacturing method. The manufacturing method includes: online heat treatment of the rolled rail, which includes: an accelerated cooling stage: when the temperature of the rail top surface of the rolled rail is between 720 and 840°C, the rail top surface, the long leg side of the rail head, and the short leg side of the rail head are accelerated to 460 to 520°C, wherein the cooling rate of the rail top surface is 1.5 to 3.0°C / s, the cooling rate of the long leg side of the rail head is 2.0 to 3.0°C / s, the cooling rate of the short leg side of the rail head is 2.5 to 3.5°C / s, and the cooling rate difference between the short leg side and the long leg side of the rail head is 0.3 to 0.7°C / s; and an air cooling stage: the rail cooled in the accelerated cooling stage is air cooled to room temperature. This invention can produce turnout rails with uniform hardness distribution on both sides of the rail head, thereby improving the stability of turnout rails during service.

The present application relates to the technical field of rail production process, in particular to a production method for improving wear resistance of channel rail for tram. After universal rolling, compressed air is applied to the channel rail for forced cooling in parts. In the first stage, supersonic air jet cooling is applied to the rail head tread, rail head running edge, rail head left side, rail lip and rail bottom to control the cooling speed of each part. In the second stage, supersonic air jet cooling is continuously applied to each part of the rail to control the cooling speed of each part. In the third stage, subsonic air jet cooling is applied to each part of the rail to control the cooling speed of each part, and then the rail is naturally cooled in air. The quenching effect of the channel rail tread and running edge is improved, the pearlite interlamellar spacing is refined, the rail strength and hardness are improved, and the channel rail has good wear resistance.

The spiral conveying device comprises a conveying mechanism and a draught fan, the conveying mechanism comprises a conveying pipeline, a spiral rod, a motor and a sealing cover, the spiral rod is rotationally arranged in the conveying pipeline in a sleeved mode, the motor is in transmission connection with the spiral rod, and a feeding port and a discharging port are formed in the two opposite sides of the conveying pipeline respectively. The sealing cover is connected to the outer wall of the conveying pipeline in a sealed mode, a cavity is defined by the sealing cover and the outer wall of the conveying pipeline, a water inlet and a water outlet are formed in the cavity, the fan is installed above the feeding port, and by means of the fan, negative pressure is formed in the conveying pipeline, hot air exhausting is accelerated, and the cooling speed of plastic particles is increased; the temperature of the side wall of the conveying pipeline can be increased when the plastic particles make contact with the inner wall of the conveying pipeline for a long time, the temperature of the side wall of the conveying pipeline is further reduced through cold water in the cavity, the cooling speed of the plastic particles is further increased, and the problem that the cut plastic particles are bonded in the spiral conveyor is effectively solved.

The utility model discloses a kind of cooling devices of wax water preparation paste, it is related to cooling device technical field, to solve the technical problem of slow cooling speed in middle position when multiple wax paste blocks are stacked in pool body water cooling, uneven cooling, including base, the upper surface of the base is arranged with placing mechanism, moving mechanism is arranged above the placing mechanism, limit mechanism is arranged below the moving mechanism. The utility model is by designing screw rod, center hole and rotating block structure, when pressing plate enters pool body A with frame A, cooling water impact pressing plate makes it rise and drive screw rod to move, the flat mouth structure of center hole is used to drive rotating block to rotate, and then stirring plate is rotated in frame A by shaft rod, the wax paste block in cavity is agitated, so that its position dynamic adjustment, promote wax paste block and cooling water fully contact, reduce the problem of activity restriction caused by multiple accumulation, improve the heat dissipation uniformity in cooling process, reduce the situation of cooling efficiency due to accumulation dense influence occurs.

The application discloses a heat treatment method of a titanium alloy material for an aviation aircraft, and comprises the following steps: S1, heating forging; S2, die forging; and S3, double annealing heat treatment. The heat treatment method optimizes and adjusts the heat treatment process in the preparation process of the TC21 titanium alloy, mainly optimizes and adjusts the cooling mode, the holding time and other parameters of the double annealing, so that the cooling speed is adjusted, the secondary lamellar or spherical alpha phase is obtained in the first annealing, the acicular alpha phase is obtained in the second annealing, the strength of the titanium alloy is improved through the content of the alpha phase, and the prepared TC21 titanium alloy meets the high performance requirements of strength greater than or equal to 1200 MPa, yield greater than or equal to 1100 MPa and A greater than or equal to 8.

The invention provides an automatic material receiving device for a core shooter, which belongs to the technical field of core shooters, comprises a material receiving bracket, and is characterized in that a material receiving conveying module is arranged on the material receiving bracket, a protection box is arranged on the outer side of the material receiving conveying module, an air exhaust module is arranged on the protection box, and a refrigeration module is arranged on the air exhaust module; an exhaust cooling module is arranged on the refrigeration module, and a cold water supply module is arranged on one side of the refrigeration module. The automatic material receiving device for the core shooter solves the problems that an existing automatic material receiving device for the core shooter is poor in cooling effect, low in cooling speed and not beneficial for subsequent personnel to take.

The utility model discloses a cooling device for activated carbon production, and belongs to the technical field of cooling equipment.The cooling device is characterized by comprising an outer cylinder, an inner cylinder, a feeding pipe, a discharging pipe and a cooling device, the discharging pipe is mounted in the inner cylinder; the cooling assembly is mounted on the outer cylinder; wherein the cooling assembly comprises a driving motor, an auger shaft, a cooling pump, a liquid inlet pipe, a heat exchange pipe, a liquid outlet pipe and a dust storage assembly, the driving motor is installed on the outer wall of the inner barrel, the auger shaft is connected with an output shaft of the driving motor and arranged in the inner barrel, the cooling pump is arranged outside the outer barrel, one end of the liquid inlet pipe is connected to the cooling pump, and the other end of the liquid inlet pipe is connected to the dust storage assembly. The heat exchange pipe is spirally wound around the outer wall of the inner cylinder, one end of the heat exchange pipe is connected with the liquid inlet pipe, one end of the liquid outlet pipe is installed on the heat exchange pipe, and the other end of the liquid outlet pipe is installed on the cooling pump. According to the activated carbon cooling device, the cooling speed of activated carbon can be higher, and the cooling work efficiency of the cooling device is remarkably improved.

The utility model relates to the technical field of plastic sheet production, in particular to a plastic sheet forming device which comprises a machine frame, a cover plate and a cooling assembly, the machine frame is connected with the cover plate, a forming roller set is arranged on the machine frame, the cooling assembly is connected to the machine frame and comprises a spraying assembly and an adjusting assembly, the spraying assembly comprises a flow dividing pipe and a spraying head, and the adjusting assembly is connected to the machine frame. And the two flow dividing pipes are symmetrically arranged, a plurality of spraying heads are connected to the flow dividing pipes, and the adjusting assembly comprises a rotating shaft and an adjusting handle. According to the plastic sheet cooling device, the flow dividing pipes and the spraying heads are arranged at the upper end and the lower end of the plastic sheet, so that the two sides of the plastic sheet can be synchronously cooled to prevent warping and layering caused by low cooling speed of one side of the plastic sheet, and meanwhile, the angles of the flow dividing pipes and the spraying heads can be adjusted when the rotating shaft is driven to rotate through the adjusting handle; and the water mist sprayed by the spraying head has an angle, so that the water mist is more adaptive to plastic sheets with different thicknesses.

The application discloses a kind of based on molten pool state feedback's titanium alloy laser welding pore control method and system, by design adjustable electromagnetic stirring power and frequency electromagnetic generating module connection magnetic field exerting component, establish the matching process parameter library of electromagnetic stirring and laser welding, cooperative adjustment infrared blue light composite laser welding process parameter, including infrared laser power, blue light laser power, welding speed and defocusing amount.Again using high-speed camera device carries infrared thermal imaging monitoring molten pool state, simultaneously construct real-time monitoring and feedback control system, to realize titanium alloy welding overall closed-loop control.Adopt the method of the application can realize the stirring of molten pool in laser welding process, make pore effectively escape, avoid the pore defect caused by gas not in time to escape under the condition that laser welding cooling speed is faster.Titanium alloy laser welding pore rate is reduced to 2% and below, compared with traditional laser welding method reduces more than 80%, significantly improves welding quality stability.

The utility model relates to a pin-fin liquid cooling heat dissipation device and system. The pin-fin liquid cooling heat dissipation device comprises a shell, a plurality of fin liquid inlet pipes, a liquid outlet pipe, a liquid cooling source, a recovery part and a power part. In actual use of the pin-fin liquid cooling heat dissipation device and system, firstly, one side of the shell is attached to the electronic equipment, the density distribution of the fins in different areas of the inner wall of the shell is different, specifically, the fins can be arranged according to the heating conditions of different areas of the electronic equipment, and a coolant of a liquid cooling source is introduced into the shell through the first through hole; the cooling agent is in contact with the shell and the fins, due to the existence of the fins, the contact area of the shell and the cooling agent is increased, the cooling speed is increased, meanwhile, different heating areas of the electronic equipment are cooled in a targeted mode, and the arrangement density of the fins further has the effects of adjusting the flowing path of the cooling agent and reducing flowing resistance. Therefore, the heat dissipation requirement of the high-power-consumption chip is met, the liquid cooling fluid can be in complete contact with the multiple fins, and efficient heat dissipation can be achieved.

The utility model relates to the technical field of preparation of synthetic ammonia from natural gas, and discloses a cooling device for preparation of synthetic ammonia from natural gas, which comprises a cooling box, gas storage boxes are fixedly mounted on the left side and the right side of an inner cavity of the cooling box through supports, and guide pipes are uniformly communicated between the two gas storage boxes. Through the arrangement of the gas storage box, the guide pipe, the water storage pipe, the spraying head, the coiled pipe, the conduction plate, the submersible pump and the three-way pipe, the ammonia raw material gas can be conveniently conducted and cooled, meanwhile, the conduction cooling area of the ammonia raw material gas can be increased through the arrangement of the guide pipe, the conduction plate and the coiled pipe, the cooling speed of the ammonia raw material gas is increased, and the service life of the ammonia raw material gas is prolonged. By arranging the air box and the cooling fan, air blowing cooling can be conducted on the guide pipe, the conduction cooling speed of the ammonia gas raw material gas is further increased, by arranging the structure, multi-stage rapid cooling use can be achieved, and therefore the use requirements of customers can be met, and the production efficiency is prevented from being affected.

The utility model relates to the technical field of vacuum cups, in particular to a vacuum cup structure which comprises a heat preservation base. An inner container is arranged in the heat preservation base; a telescopic sleeve capable of axially stretching out and drawing back is arranged between the heat preservation base and the inner container; a cup cover is arranged at the top of the inner container; the inner container is sleeved with the telescopic sleeve, and the telescopic sleeve is connected with the cup cover; when a user has a quick cooling drinking requirement or needs to sense the temperature of liquid in the inner container, the telescopic sleeve is retracted into the heat preservation base, the upper portion of the inner container is exposed in the air at the moment, and the cooling speed of the liquid in the inner container is higher without heat preservation of the telescopic sleeve at the moment; meanwhile, a user touches the exposed inner container with the hand, the temperature of the liquid can be sensed in real time, the drinking opportunity is judged, and scalding is avoided.