87results about How to "Guaranteed cooling rate" patented technology

The invention discloses a heat shaping fixture and a heat shaping method in the quenching process of a metal material seal ring, and relates to a heat shaping fixture and a heat shaping method in the quenching process of a seal ring. The invention solves the problems that the integral hardness of a seal ring cannot be improved, the opening size cannot be ensured and waste products are easily produced in the conventional quenching technology. The device comprises that: an upper cover plate and a bottom plate are vertically aligned; a wedge block is nailed in an inclined hole of each shaft; the shaft is sleeved with number adjustable gaskets; the metal material seal ring is arranged between the upper cover plate and the bottom plate; an oil immersion hole on the upper cover plate corresponds to the upper end face of the metal material seal ring; and an oil immersion hole of a lower cover plate corresponds to the lower end face of the metal material seal ring. The method comprises the following steps of: clamping the seal ring in the heat shaping fixture; putting the seal ring and the heat shaping fixture into a heat treatment furnace, and completing quenching and tempering procedures of the heat treatment, which meet the hardness requirement; and detaching the heat shaping fixture and taking the seal ring out. The invention is used for heat shaping in the quenching process of the metal material seal ring.

The invention discloses a shaping machine for after-finishing of fabrics. The shaping machine comprises a box body, wherein a bracket is arranged on the left side of the box body; a cooling assembly and a static electricity removing assembly are sequentially arranged on the bracket from left to right; a conveying roller platform penetrates through the box body; the interior of the box body is divided into a preheating cavity and a drying cavity by a partition plate; a through groove is formed in the partition plate; a steam spraying disc and a flapping assembly are arranged in the preheating cavity, and a drying assembly is arranged in the drying cavity. The provided shaping machine for after-finishing of fabrics is ingenious and reasonable in structural design; fabrics are subjected to steam humidification and heating treatment through the steam spraying disc in the preheating cavity; the surfaces of the fabrics are humidified more uniformly through the cooperation of the flapping assembly; the fabrics are better loosened and softened and then enter the drying cavity to be dried by the drying assembly at the optimal temperature; after the fabrics are cooled through the cooling assembly, the fabrics are subjected to static electricity removal treatment through the static electricity removing assembly, so that winding and treatment of the fabrics are more convenient.

The invention provides a control method and a control system for battery cooling. The control method comprises the steps of detecting the maximum temperature of a core body of a battery, judging whether the maximum temperature of the core body of the battery is higher than a first temperature threshold, performing a slow cooling mode on the battery if so, judging whether the maximum temperature of the core body of the battery is higher than a second temperature threshold, performing a rapid cooling mode on the battery if so, judging whether the maximum temperature of the core body of the battery is lower than the second temperature threshold and higher than a third temperature threshold, performing an air conditioner closed rapid cooling mode on the battery if so, judging whether the maximum temperature of the core body of the battery is lower than the third temperature threshold and higher than the first temperature threshold, and performing a slow cooling mode on the battery if so. According to the method and the system, the economy, a battery cooling rate and a cooling effect are comprehensively considered according to setting of the temperature thresholds; fuel oil consumption is reduced; an energy source is saved; the battery cooling is realized by cooling a battery circulation waterway coolant with an air conditioner refrigerant; battery overheating can be effectively avoided; and the performance and the safety of a complete vehicle are ensured.

The invention provides a ringlike quenching device and an application method thereof. The ringlike quenching device comprises water spray rings, a hood, a conveying roller way, a rack, an ascending, descending and guiding device and a water tank. The water tank, the water spray rings and the hood are arranged on the rack. The water spray rings are hooded with the hood and the rack. The lower surface of the rack is connected with the ascending, descending and guiding device. The water tank is located below the rack. The multiple water spray rings are each under independent control, and the water yield of each water spray ring can be adjusted according to the process. By means of the ascending, descending and guiding device, the water spray rings, the hood and the rack can be integrally ascended or descended by a certain distance, and it is guaranteed that the water spray rings are consistent with centers of steel tubes in height. Nozzle devices in the water spray rings can be integrallyrotated by a certain angle, and it is guaranteed that water sprayed out of nozzles is sprayed to the outer surfaces of the steel tubes in the tangential direction; steam films generated on the surfaces are broken up in the quenching process of the steel tubes; the surface heat exchange conditions of the steel tubes are improved; the cooling speed of the steel tubes is increased; it is guaranteedthat a quenching martensitic structure is obtained; and quenching water is prevented from flowing back into a quenching furnace from the inner walls of the steel tubes.

The invention relates to a welding method for controlling hardness of a weld seam heat-affected zone, in particular to a welding method for controlling hardness of weld seam heat-affected zone of a low-carbon steel material for casting. The method is characterized in that the method adopts welding rods of AWS5.1 E7015 with a diameter of 4mm and 5mm, and adopts a temper bead to realize welding under the following conditions: lowest preheating temperature, welding current 175 to 240A, voltage 20 to 30V, and welding speed 10 to 25cm/min. The method provided by the invention is unique, and can control the hardness of a casting body between 160 and 170HB by regulating the chemical components and heat treatment process of a casting. If the hardness of the weld seam heat-affected zone is controlled below 200HB, the hardness difference among the weld seam heat-affected zone, a base material and a weld seam metal can be reduced, and the hardness difference of the weld seam part can be controlled below 40HB.

The invention belongs to the technical field of alloy thin belt preparation and discloses a method for adopting belt spinning of a disc-type single roller to prepare an amorphous alloy thin belt. The method includes adopting the disc-type roller, spraying melt on the surface of a disc rotating around a disc central shaft, enabling a direction in which a centrifugal force is applied on the melt to be parallel to a contact face, namely the surface of the disc, and forming the amorphous alloy thin belt after an amorphous thin belt at the edge of the disc automatically breaks away from the roller under the action of cooling contraction and the centrifugal force. The amorphous alloy thin belt prepared by the method is thinner in size, higher in surface smoothness and better in performance.

The invention discloses a 3D amorphous alloy network reinforced boron-steel-based composite material with inlaid in-situ carbide particles, and a preparation method of the material. The preparation method mainly comprises the preparation process that strong carbide elementary metal powder and carbon black or graphite powder are mixed, are subjected to high-energy ball milling and then are subjected to low-temperature calcination to obtain an intermediate phase alloyed powder with the high reaction activity; high-energy ball milling is used to enable each intermediate phase alloy particle to becladded with a nickel layer on the surface; then iron powder, boron powder, molybdenum powder and nickel powder are added, high-energy ball milling is carried out to make partial iron powder have thenanometer size, and a compact blocky blank is obtained by utilizing high pressure; and the blank is placed into a vacuum dual-chamber thermal treatment furnace for vacuum sintering and is subjected to quick air cooling after sintering is completed, and the final needed composite material is obtained. The 3D amorphous alloy network reinforced boron-steel-based composite material with the inlaid in-situ carbide particles shows ultra-high elastic modulus, strength and hardness, and good plasticity and toughness, is simple in technology and easy for large-scale production to be carried out, and can be suitable for developing products such as gears, bearings, connecting rods, liner plates, rollers, tools and dies, and the products can be long in service life on the working conditions with hightemperature, high stress, hard abrasive wear and the like.

The invention discloses a glass preparation device facilitating edge stripping. Adjusting screws penetrate through the tops of the two ends of a feeding table, cutters are fixedly connected to the bottom ends of lifting screws in a clamped mode, reset springs are welded to the two ends of a lifting roller, electromagnets are installed at the bottoms of the inner sides of lifting grooves, and limiting fixing plates are welded to the two ends of the feeding table. Impact pressing columns are fixedly connected to the bottom ends of the pressing hydraulic cylinders, buffer springs are welded to the bottom ends of the impact pressing columns at equal intervals, protective rubber pads are bonded to the bottom ends of the impact pressing columns, and the pressing hydraulic cylinders drive the impact pressing columns to impact the corners of the glass. Meanwhile, the impact force borne by the middle of the glass is relieved through the protective springs, the rubber buffer plates and the buffer springs so that the situation that the glass is broken or cracks due to the fact that the impact force at the two ends of the middle is too large is avoided, and burrs on the edge of the glass are repaired through the L-shaped stripping plates after edge stripping is completed; and thus the stripping effect and efficiency of the corners of the glass are ensured.

The invention discloses a method for preparing an amorphous alloy thin strip through quenching conical single roller quickly and belongs to the technical field of alloy thin strip preparation. According to the method, a conical roll wheel is adopted, and melt is sprayed to a conical inclined slope face rotating around a conical central shaft and is made to form an included angle with a contact face from being perpendicular to the contact face due to the function of centrifugal force. On the edge of the conical inclined slope face, the amorphous alloy thin strip cools itself, contracts and comes off a roll wheel by itself under the action of centrifugal force. The thin strip prepared through the method in thinner is size, higher in surface smoothness, and better in performance.

The invention provides an inner roller type single roller rapid quenching amorphous ribbon manufacturing method, and belongs to the technical field of preparation of amorphous ribbons. An inner roller type roller is adopted and is of a hollow straight barrel structure, melt is ejected to the inner surface of the inner roller type roller which rotates around a center shaft, the inner surface of the inner roller type roller is of a straight barrel type, and the direction of centrifugal force applied to the melt changes from the direction perpendicular to a contact surface and upward into the direction perpendicular to the contact surface and towards the interior of the contact surface. The ribbons prepared through the method are thinner in size, higher in surface smoothness, and better in performance.

The invention discloses a single-crystal thermal field gradient additional adjustment system which is arranged on an upper cover plate of a single crystal furnace and is arranged in a manner of surrounding an inner flow guide barrel, and consists of a plurality of annular components including a first component, a second component, a third component, a fourth component and a fifth component; the first component, the second component and the third component are set to be temperature adjustment parts in sequence from top to bottom; the temperature adjustment parts form an included angle of 160 to 180 degrees relative to the inner flow guide barrel; a heat insulation part is arranged on the outer side of each temperature adjustment part; the heat insulation parts are formed by stacking fourth components and fifth components in the horizontal direction from inside to outside; the adjustment of the adaptability to the gradient of a thermal field at the upper part of the single-crystal thermal field guarantees smooth transition of the gradient of the thermal field and enables a required temperature region of a crystal rod to be in a proper temperature gradient so as to control the crystal rod to be at a cooling speed of the certain temperature region; meanwhile, the single-crystal thermal field gradient additional adjustment system can rectify gas.

The invention relates to a fan device for accelerated cooling of a special pipe for oil in a coating process. The fan device comprises a blast box, connecting canvas, a ventilator, supporting frames, a dust removal filtering screen, air outlets and an air suction opening. The two ends of the blast box are provided with the supporting frames, one or more air outlets are formed in the blast box, the length of the air outlets is equal to the length of the blast box, meanwhile, the blast box is connected with the ventilator through the connecting canvas, the air suction opening is formed in one side of the ventilator, and the dust removal filtering screen is arranged at the position of the air suction opening. The cooling device is simple in structure, low in cost and easy to popularize; when a large number of pipes need to be cooled, the cooling rate can be guaranteed, the production efficiency can be improved, and coating can be conducted smoothly.

The invention discloses an accelerated cooling method after 12Cr2Mo1VR steel plate quenching slot normalizing. The method comprises the following steps of: controlling a water temperature of a quenching slot, controlling time from tapping to water entry of a steel plate, and controlling to start an air stirring process and a secondary normalizing pre-turnover process, wherein during the secondarynormalizing pre-turnover process, the steel plate needs to be normalized twice, and turnover needs to be firstly performed before secondary normalizing. After the method is adopted for normalizing, a12Cr2Mo1VR steel plate with a thickness greater than and equal to 150 mm is cooled in an accelerated mode, so that surface and core performances as well as die-welding performance of the treated steelplate can meet GB713-2014 requirements and are relatively stable, and performance difference among upper and lower surfaces as well as a head and a tail of the steel plate is relatively small.

The invention relates to a quenching collet used for the straight section of the end of an automobile leaf spring, comprising a quenching collet, a U-shaped installation hole is vertically arranged on the quenching collet, and a quenching collet is vertically arranged on the bottom of the quenching collet The straight section at the end, the quenching chuck is installed and positioned on the body of the quenching swinging machine by the bolt through the U-shaped mounting hole, and the straight section at the end of the quenching chuck is evenly equipped with multiple full-through oil grooves with arc-shaped cross-sections . The invention solves the problem that the cooling speed of the leaf spring end is slowed down due to the contact surface during quenching and forming, resulting in a lower quenching structure conversion rate. Through the multi-channel all-through oil grooves uniformly arranged under the straight section of the end of the quenching chuck, It can increase the contact area between the quenching medium and the end of the leaf spring, and ensure the cooling rate so as to solve the problem of the transformation rate of the quenching structure.

The invention discloses a high-thrust lifting upright structure which comprises an upright body and a top support. A driving box is arranged at the top of the upright body and positioned in the top support, the top support comprises a U-shaped frame, a top plate and a bottom plate, the top plate is positioned on the top face of the U-shaped frame, and the bottom plate is positioned on the bottom face of the U-shaped frame. A mounting method of the high-thrust lifting upright structure includes following steps: 1), adjusting the bottom plate; 2), mounting the upright body; 3), mounting the topplate; 4), mounting a supporting side plate; 5), assembling two lifting uprights. The upright body and the top support are combined to form a mounting single body, which is suitable for both mountingof one lifting upright and assembling of the two lifting uprights; parts of the top support are designed to be of a detachable structure, so that convenience can be brought to subsequent replacement and maintenance, and maintenance cost is lowered; the top support can realize mounting and fixing with the upright body within a certain size range, so that application range of the top support is expanded effectively.

The invention provides a cooling system of a high-temperature gas cooled reactor nuclear power station, and belongs to the technical field of nuclear power. The cooling system comprises: a steam generator; a main water supply device; an auxiliary steam generating device; a main steam device; and an auxiliary steam receiving device. According to the cooling system of the high-temperature gas cooled reactor nuclear power station, the cooling steam supply pipeline is additionally arranged between the main water supply device and the water supply device between the steam generator, and cooling steam with certain parameters is provided for the steam generator after the reactor is shut down emergently; a cooling steam discharging pipeline is additionally arranged on a steam conveying pipeline of the steam generator; and through the structure, the cooling time of the steam generator is shortened from about 20 days during natural cooling to about 52 hours, so that a reactor can be quickly started after emergency shutdown, and the operation efficiency and the economical efficiency of a power plant are greatly improved.