255 results about "Surface cooling" patented technology

The utility model discloses a vertical steam-water separator which comprises a tank body, the tank body is communicated with a steam inlet pipe, an exhaust pipe and a drain pipe, a baffle plate for dividing the tank body into an inner cavity and an outer cavity is arranged in the tank body, and a heat insulation material is packaged in the inner cavity, so that the baffle plate can be kept in a high-temperature state. And water vapor entering the tank body is prevented from being cooled and condensed on the surface of the baffle plate with relatively low temperature. The inner cavity is fixedly arranged on the tank body through two nested and separated barrels, a through hole is formed between the two barrels, high-temperature water in the steam-water separator can be kept for a period of time in the tank body through the two barrels, continuous evaporation of the high-temperature water is facilitated, after the liquid level exceeds the through hole, the electronic liquid level meter sends out a signal, the PLC control system opens the electronic valve, and the steam-water separator is started. The drainage work is completed through the siphon principle.

The invention provides high-carbon and high-manganese steel and a control method for continuous casting stopping of the high-carbon and high-manganese steel, and the control method comprises the following steps: before stopping the casting, reducing the pulling speed to a first target pulling speed, removing casting powder in a crystallizer after the pulling speed is stabilized, closing a stopper rod, arranging a blind plate, and synchronously reducing the wide-surface cooling water flow of the crystallizer from a first target flow to a second target flow; a secondary cooling water system in front of the straightening section is switched to a semi-automatic flow locking mode, the first target pulling speed is switched to a second target pulling speed, a tail blank mode is started, and the soft reduction function is relieved; after the submersed nozzle is removed, a cooling piece is added into the crystallizer, and the tail blank is continuously pulled out at a third target pulling speed; after the tail blank is completely separated from the crystallizer, running at a fourth target pulling speed for 2-4 minutes; pulling the tail blank out of the fan-shaped section at a fifth target pulling speed; the first target flow rate ranges from 5100 L / min to 6100 L / min; and the second target flow rate is 4000 to 4500 L / min. And the technological process is simple and convenient to operate.

A chip and cooler assembly includes an active or passive interposer (114) that has a front side and a back side. Integrated circuit chips (102, 112) are mounted onto the back side of the interposer (114). Each of the chips (102, 112) has a front side that is attached to the interposer (114) and a back side that faces away from the interposer (114). Gaps (108) separate the chips (102, 112). The assembly also includes a frame (300) that is fitted into the gaps (108) between the chips (102, 112). The frame (300) is CTE-matched to the chips (102, 112). The frame (300) and the chips (102, 112) define a back side surface. A cooler module (200) is attached to the back side surface. The cooler module (200) is CTE-matched to the chips (102, 112). The cooler module (200) includes a microchannel cooler (202) that is disposed directly against the back sides of the chips and a manifold (204, 206) that is attached to the microchannel cooler (202) opposite the chips (102, 112). The manifold (204, 206) is CTE-matched to the microchannel cooler (202).

The invention discloses a coating device for cable production and processing, and belongs to the field of cable production. A coating device for cable production and processing comprises a processing box, threading holes are formed in the centers of the two side walls of the processing box, a material storage box is fixedly connected to the top of the processing box, a material guide pipe is fixedly connected to the interior of the processing box, and a material guide auger is rotationally connected to the interior of the material guide pipe. The coating assembly is arranged in the processing box, and the coating assembly is used for coating the surface of a cable core wire with an insulating material; the cooling assembly is arranged in the processing box; the rotating ring drives the two groups of coating rollers to rotate around the surface of the cable core wire, so that the surface of the cable core wire is uniformly coated with slurry, and meanwhile, the slurry is tightly compacted on the surface of the cable core wire in cooperation with the rotating extrusion effect of the two groups of coating rollers on the cable core wire, and bubbles in the slurry are discharged; the coating effect of the insulating layer is ensured, and the quality of the cable is improved.

According to various embodiments, provided is a portable rehabilitation cooling therapy device comprising: a cooling device; and a gripping structure that is connected to the cooling device and includes a battery. The cooling device includes: a housing that includes a plurality of first holes and a plurality of second holes on the respective side surfaces and a plurality of third holes on the upper portion; a multi-layer thermoelectric element disposed inside the housing and capable of cooling one surface to -10°C or below by using power supplied from the battery; a heat sink that is disposed on the upper portion of the multi-layer thermoelectric element and includes a body and a plurality of heat dissipation fins protruding from the body and extending in a direction from the plurality of first holes toward the plurality of second holes; and a heat dissipation fan disposed on the heat sink.

A fresh air processing unit comprises an air inlet unit and a dehumidification function section. The air inlet unit sequentially comprises a fresh air primary filtering section, a fan section, a flow dividing section, a heat pipe circulation recycling front section, a surface cooling section, an evaporation section, a heat pipe circulation recycling rear section, an air mixing section, a reheating coil section and a humidifying section from the fresh air inlet end to the fresh air outlet end. The flow dividing section comprises a flow dividing channel and a main channel, and the flow dividing channel can enable part of fresh air to cross the heat pipe circulation recovery front section, the surface cooling section, the evaporation section and the heat pipe circulation recovery rear section to be mixed with fresh air passing through the main channel of the heat pipe circulation recovery front section, the surface cooling section, the evaporation section and the heat pipe circulation recovery rear section in the air mixing section. The resistance of fresh air passing through the fresh air processing unit section body is reduced, energy consumption is reduced, meanwhile, the fresh air passing through the flow dividing channel of the flow dividing section can be mixed with the fresh air passing through the main channel in the air mixing section, the temperature and humidity of the fresh air are adjusted, and the operation energy consumption of the fresh air processing unit is further reduced.

A stator for an electric motor in an electrified vehicle incorporates axial coolant channels around the windings. Radial coolant channels connect these axial channels to an outer surface of the stator core. Coolant is pumped through the radial channels to a central point along the axial channels. From there, the coolant flows axially, absorbing heat from the straight sections of the windings and then flowing out of both ends of the stator core, cooling the winding heads.

This application relates to the field of lasers and discloses a reflector module, a synchrotron radiation device, and a free-electron laser device. The module includes a mirror body, a cooling component, and a heating component. The cooling component is connected to the mirror body and disposed on a first surface, used to reduce the temperature of the reflecting surface. The heating component is connected to the cooling component and used to compensate for the temperature of the reflecting surface. The heating component includes a heat-conducting block and a heating plate. This application utilizes a heat-conducting block connected to the cooling component and protruding from the reflecting surface along a third direction. A heating plate is disposed on the surface of the heat-conducting block facing the mirror body along a second direction. The heating component provides localized temperature compensation for the reflecting surface, which, combined with the uniform cooling of the cooling component, effectively reduces the localized high thermal gradient and non-uniform thermal expansion deformation of the reflecting surface caused by changes in the beam position.

The invention provides equipment and a process for producing float glass, and relates to the technical field of float glass production.The process comprises the steps that molten glass is continuously input into a tin bath, and the tin bath is filled with molten tin; the glass liquid input into the tin bath floats on the upper surface of the tin liquid; carbon-containing gas is input into a carbon film forming pipe, carbon films are formed through thermal decomposition, and the carbon films are attached to the wall of a tin bath and the surface of traction equipment; collecting glass tape data, and judging whether the glass tape is in a normal state; based on the state of the glass tape, a traction instruction is generated, traction equipment is controlled to pull the glass tape according to the traction instruction, and the glass tape moves outwards from the inside of the tin bath through the traction equipment. By forming the carbon film on the tin bath wall and the surface of the traction equipment, the property of the surface of the traction equipment is changed, molten glass or oxide thereof is prevented from being attached to the tin bath wall and the traction equipment, and the risk that the glass tape is broken due to the fact that protrusions or tips scratch the glass tape is reduced.

The present invention relates to a method for heat dissipation from a high-voltage (HV) battery (11), in which a mini-channel cooling system is formed by a plurality of mini-channels (15), a coolant, a coolant pump pumping the coolant through the mini-channels, a heat exchanger, and a control unit, in which several energy storage cells (12) and several mini-channels are arranged in a housing of the HV battery, in which the mini-channels are partially connected to an outer surface of the energy storage cells (16), in which the coolant is formed by a mixture of a nano-liquid (13) and a phase-change fluid (14), and in which the coolant flow is controlled by the control unit such that an operating temperature range is maintained at the energy storage cells. Furthermore, a device with which the method can be carried out is presented.

The utility model provides a kind of flat die granulator with material surface layer cooling device, and the granulation unit of flat die granulator is processed with opening, opening is connected with air inlet connector, the air outlet pipe of fan is fixedly connected with air inlet connector;After the working of flat die granulator, the material surface layer in granulation unit is cooled by fan.The utility model is simple, and the existing equipment is used, the opening is opened on flat die granulator, and the air inlet cooling of additional roots fan can make the rapid cooling of material surface layer in granulator, thereby solve the problem that the material is too sticky to cause sticking into group when granulating, and then reduce the difficulty of subsequent material cooling, reduce the pressure of whole granulator, solve the problem that whole granulator is blocked and stopped, save manpower and material resources, realize continuous production, greatly improve yield and work efficiency, reduce labor intensity, improve the stability of product quality, eliminate production hidden danger.

The invention relates to the technical field of air conditioning systems, in particular to an air conditioning system optimization device and method. The device comprises a cold water pipeline module, a pipeline plugging module, a valve linkage control module and a heating section adaptation module, the cold water pipeline module is used for introducing plant cold water to the heating section and achieving backflow circulation, the pipeline blocking module is used for cutting off a hot water channel, the valve linkage control module achieves synchronous switching of the cold water channel and the hot water channel through a water inlet side electromagnetic three-way valve and a water outlet side electromagnetic three-way valve, and the heating section adaptation module is used for guaranteeing the heat exchange efficiency. According to the method, intelligent switching of the winter heating function and the summer cooling function of the heating section is achieved through the summer cooling operation and winter heating switching step. The refrigeration capacity of the air conditioner can be improved without additional surface cooling equipment, the equipment utilization rate is increased to 100% from 0%, the modification cost is low, construction is convenient, function switching is stable and reliable, and the method is suitable for occasions such as cigarette factories with strict requirements for temperature and humidity.

The application relates to an island type air treatment device for a glass fiber workshop, which comprises a treatment shell, the treatment shell is internally provided with a purification cavity for air flow, a filter assembly, a surface cooling ventilation assembly and a humidity adjusting assembly are sequentially arranged in the purification cavity along the flow direction of the gas, the filter assembly comprises three parallelly distributed primary efficiency metal filters, the mesh numbers of the three primary efficiency metal filters are sequentially increased, the surface cooling ventilation assembly comprises a surface cooling section and a fan, and the humidity adjusting assembly comprises a spraying module and a wet film water baffle. The application has the advantages that through the cooperation of the filter assembly and the humidity adjusting assembly, three levels of filtration of the gas are realized by adopting three primary efficiency metal filters with different mesh numbers, the filtration effect is effectively improved, the cleanliness of the air is improved, the spraying module and the wet film water baffle are cooperated to carry out the humidification treatment on the air, the sprayed air meets the requirement of temperature and humidity, and the humidity effect is improved.

The application discloses an experimental device for simulating solidification structure of continuous casting billets, which comprises a crystallization unit and a temperature monitoring unit. The crystallization unit can enclose a crystallization cavity. A cooling channel is arranged in the water-cooled wall of the crystallization unit. The cooling channel is connected with a cooling medium source. The cooling intensity of the slab in the continuous casting production is simulated by controlling the temperature and flow rate of the cooling medium. The test element of the temperature monitoring unit can monitor the temperature of the cooling medium in the crystallization cavity in real time, so as to accurately restore the solidification process of the continuous casting billets. The application also discloses an experimental method for simulating solidification structure of continuous casting billets. The target unit is selected, and the cooling medium flow rate parameter is set to restore the change process of the cooling intensity of the surface of the continuous casting billets with time, and the heat flow density of the solidification process is analyzed. After the solidification is completed, the simulation unit is obtained, and the solidification structure of the simulation unit is analyzed. The application can accurately simulate the change process of the heat flow density of the surface of the slab in the continuous casting process, and provides convenience for the solidification structure research of the continuous casting billets.

An electronic circuit (100) has a printed circuit board (105), a cooling element, a connecting device (115), and an insulating layer (120). The inner face (150) of the cooling element (110) faces the inner face (142) of the printed circuit board (105), and the outer face (152) of the cooling element (110) is equipped with at least one projection (154) which is designed to extend into a channel (156) for guiding a cooling medium (200). The connecting device (115) is provided in an intermediate space (170) between the printed circuit board (105) and the cooling element (110), and the connecting device (115) forms a first connecting element (172a), having a base (174a) and a contact element (176a) adjoining the base (174a), and a second connecting element (182a), having a base (184a) and a contact element (186a) adjoining the base (184a). The lower faces of the bases (174a, 184a) are mounted on the inner face (150) of the cooling element (110). The upper face of the contact element (176a) of the first connecting element (172a) is contacted on the inner face (142) of the printed circuit board (105), and the contact element (186a) of the second connecting element (182a) is at least partly guided out of the through-opening (146) in the printed circuit board (105) of the electronic circuit (100). The insulating layer (120) is provided on the outer face (150) of the cooling element (110).

The water production system described herein uses subsurface temperatures to cool water to 55 degrees Fahrenheit. That geothermally cooled water is then sent down the interior of a copper column. Thermal transfer then causes the surface of the copper column to cool. In warm humid environments, condensation will form on the outside of the copper column, much like water condenses on a glass of ice water. Alternative formats include adding a pressure sleeve to the copper column, changing the column into a sphere, and for the pressure-sleeved version dropping the entire thing down a hole wherein the outer surface of the pressure sleeve comes into contact with subsurface ground temperatures cooling the pressure sleeve and creating additional cooling surface area. Alternative formats also include placing the invention inside of telephone or light poles and using artificial xylem and evapotranspiration to draw geothermally cooled water up the column.

According to the machining center for producing the aluminum flange and the machining method of the machining center, the machining center comprises a machining platform, a machining support is arranged on the machining platform, a mounting suspension is arranged on the machining support, a machining clamp is arranged on the mounting suspension, a machining tool bit is arranged on the machining clamp, and a cleaning component is arranged on one side of the machining tool bit. According to the aluminum flange machining device, the cleaning part is arranged on one side of the machining tool bit, cooling cleaning can be conducted on the outer surface of an aluminum flange when the aluminum flange is machined through the cleaning part, sweeps can be effectively cleaned, and in order to make the aluminum flange more stable when the aluminum flange is machined, the machining efficiency is improved. The middle clamp can be arranged on the machining platform, the aluminum flange is effectively clamped through the middle clamp, the aluminum flange is placed on the middle clamp, and dynamic monitoring of clamping and machining of the aluminum flange can be achieved through the equipment by integrating the product scanning camera, the pressure sensor and the height adjusting hydraulic cylinder.

The utility model relates to the technical field of injection molding part taking-out, in particular to an injection molding part taking-out machine formed by an injection molding machine, which comprises a mechanical arm, an extension block is fixedly mounted on the mechanical arm, a fixed cylinder is fixedly mounted at one end of the extension block, a first platform is fixedly mounted at one end of the fixed cylinder, and a second platform is fixedly mounted at the other end of the fixed cylinder. A rotating motor is fixedly installed on the extension block, an output shaft of the rotating motor is fixedly connected with a threaded rod, the threaded rod is in threaded connection with a lifting block, a plurality of connecting rods are fixedly installed on the lifting block, a second platform matched with the connecting rods is rotatably installed on the first platform, a sliding groove is formed in the second platform, and a sliding block is fixedly installed on the sliding groove. A moving block is slidably connected into the sliding groove. By adjusting the angle of the vacuum suction cup, plane and arc-shaped injection molding parts can be stably taken, the practicability of the device is improved, meanwhile, certain surface cooling is carried out on the injection molding parts, and deformation is prevented.

The application discloses a kind of manufacturing devices of multilayer co-extrusion film, comprising: blowing machine is used to extrude molten plastic material;Multilayer co-extrusion die is used to melt different materials and is co-extruded into multilayer structure;Sensing detection module is used to monitor film bubble diameter change and film bubble surface cooling state in real time;Control module is used to receive sensor signal, using PID control algorithm, output fan frequency, air valve opening degree instruction matrix;Wind power control module is used to adjust wind power according to fan frequency, air valve opening degree instruction matrix, and then control film bubble diameter;Film bubble forming module is used to form final film.The application also discloses a kind of using method of manufacturing devices of multilayer co-extrusion film.The application solves the problem that multilayer co-extrusion film is easily separated between film layers during manufacturing process, and film is broken or poorly bonded due to inaccurate film bubble diameter control.

The present invention comprises a metal-cooled dispenser device for dispensing beverages, in particular with a drip tray, e.g., still water and / or water enriched or infused with CO2 or O2, juices, milk, alcoholic or alcohol-containing beverages, etc., with a liquid channel arranged or formed in a housing, having a connection for supplying the beverage and a dispensing opening for dispensing the beverage, with at least one tank element which is connected to the connection in a liquid-tight manner and which is detachable from the connection for refilling the tank element with the beverage, wherein the dispensing device is constructed in the manner of a modular system, wherein at least one cooling element, such as a cooling element formed with a metal, for example aluminum, for example in the form of a chute without entering the beverage itself, or in the form of a surface cooler, is arranged in the water tank.

The utility model relates to the technical field of metal quenching, and solves the problems that when a metal workpiece is quenched, the metal workpiece is always positioned at the bottom of a cooling tank and does not change in any position, so that the cooling rates of the surface of the metal workpiece are inconsistent, and the metal workpiece is easy to deform. The anti-deformation metal quenching cooling tank structure comprises a quenching frame, a mounting groove is formed in one side of the interior of the quenching frame, an arc-shaped cover for enlarging the internal space is fixedly mounted in the mounting groove, a storage frame for storage is fixedly mounted on one side of the front face of the quenching frame, and a servo motor is fixedly mounted on one side of the surface of the quenching frame. A placing assembly is fixedly installed at the output end of the servo motor and comprises a rotating rod fixedly installed at the output end of the servo motor, a placing frame is fixedly installed at one end of the rotating rod, electric push rods are fixedly installed on the two sides of the interior of the placing frame, and clamping plates are fixedly installed at one ends of the electric push rods.

The invention relates to the technical field of polystyrene foam storage, in particular to polystyrene foam production storage equipment convenient to transport, which comprises a protective frame and a storage barrel, a storage barrel is detachably connected to the interior of the protective frame; a discharging pipe is arranged at the bottom of the storage barrel and penetrates through the bottom of the protection frame. A containing cavity capable of containing a power source is formed in the bottom of the protection frame. The device further comprises a threaded cover, a pump, a cooling pipe and the like. A threaded cover is arranged on the storage barrel in a screwing manner; a pump machine is fixedly connected in the protection frame; a cooling pipe is fixedly connected to the output end of the pump and surrounds the surface of the storage barrel, and an exhaust pipe is arranged at the other end of the cooling pipe. The external supply device is controlled to introduce a cleaning agent or water into the water pipe, the cleaning agent or water is sprayed to the inner surface of the storage barrel from the spray pipe, and meanwhile, the spray pipe is obliquely arranged downwards, so that the cleaning agent or water sprayed from the spray pipe scours dissolved polystyrene foam downwards, the polystyrene foam is quickly separated from the inner surface of the storage barrel, and the cleaning effect is improved. And the sewage is discharged into an external sewage collection device from the discharge pipe.

An electronic assembly (1) comprising:-a substrate (2) having a first main surface (3) and a second main surface (4),-at least one electronic component (5) having a first main surface (6) and a second main surface (7), the electronic component (5) being arranged with its second main surface (7) on the first main surface (3) of the substrate (2), and the external contact on the second main surface (7) of the at least one electronic component (5) is electrically conductively connected to the contact surface on the first main surface (3) of the substrate (2); -a cooling structure comprising a liquid cooler (8) having a housing (9) in which at least one cooling channel (10) is formed in which a cooling liquid is guided, the housing (9) having a first main surface (23) and a second main surface (24), and the first main surface (23) being arranged adjacent to the second main surface (4) with the substrate (2), the cooling structure further comprising a thermally conductive body (11), a thermally conductive body (11) is disposed on the first main surface (6) of the at least one electronic component (5), where the thermally conductive body (11) is thermally conductively but electrically insulatively connected to the first main surface (6) of the electronic component (5), the thermally conductive body (11) being in contact with the at least one thermally conductive spacer (20), the thermally conductive spacer (20) extends through the substrate (2) into the housing (9) of the liquid cooler (8).

The invention discloses a method for preparing a double-layer Y2O3 etching-resistant coating through atmosphere and suspension plasma spraying, and particularly relates to the technical field of coating preparation. The method comprises the following steps: carrying out sand blasting, high-pressure water washing, blow-drying and drying pretreatment on an aluminum-based sample; spraying high-purity Y2O3 powder on the surface of the sample by adopting an atmospheric plasma spraying technology to form an APS bottom layer; grinding the surface of the APS bottom layer; putting the ground sample into an annealing furnace for annealing; after the sample is cooled, the Y2O3 suspension is injected into high-energy plasma flame flow through plasma spraying equipment, the Y2O3 suspension is melted and then impacts the surface of the APS bottom layer, the SPS top layer is formed after cooling, and finally the double-layer high-density Y2O3 etching-resistant coating is obtained. Through the double-layer structure design of APS bottoming and SPS top layer, grinding and annealing processes are combined to eliminate interlayer stress, corrosion resistance and dimensional stability are both considered, the preparation cost is lower than that of a full SPS coating, and the method is suitable for surface protection of cavity parts of semiconductor etching equipment.

The utility model discloses a concrete production feeding device relates to concrete production technical field. The concrete production feeding device, including conveying pipe and cooling mechanism in conveying process, cooling mechanism in conveying process includes cooling liquid storage tank, cooling pipe, heat dissipation fin, water pump and communication pipe, and cooling pipe fixedly connected at the outer surface of conveying pipe, and cooling pipe presents spiral winding and sets, and the quantity of heat dissipation fin is multiple and presents linear array's mode equidistant fixedly connected at the surface of conveying pipe, and communication pipe fixedly connected at both ends of cooling pipe, and water pump is fixedly connected with communication pipe, and cooling liquid storage tank is fixedly connected with water pump, and the input of water pump is located in the inside of cooling liquid storage tank, and communication pipe is fixedly connected with the output of water pump, and through setting multiple cooling structure cooperation, and the contact area of spiral winding cooling pipe can increase with conveying pipe, and the heat exchange efficiency is promoted, realizes efficient, uniform cooling.

A turbine engine for an aircraft may include a shroud. The shroud may be a fan shroud surrounding a fan assembly for drawing air into the turbine engine. The fan cover may have a peripheral wall. A surface cooler may be provided in the turbine engine facing the peripheral wall of the fan casing. The surface cooler may have a mounting bracket for mounting the surface cooler to the fan cover.

The utility model provides a cooling device for environment-friendly adhesive tape production, which comprises a cooling box body, the upper and lower ends of the left and right side surfaces of the cooling box body are provided with feed ports, guide wheels are arranged in the feed ports, the left and right ends of the front and rear surfaces in the cooling box body are provided with support sleeves, and the middle part in each support sleeve is provided with an air outlet pipe. Air outlet hoppers are connected to the middles of the upper surface and the lower surface of the supporting sleeve, air outlet plates are arranged at the air outlet ends of the air outlet hoppers, air outlets are formed in the air outlet plates at equal intervals, and the air outlet pipes are connected with the air outlet hoppers through air outlet branch pipes; the U-shaped air inlet pipe is connected with the air outlet pipe; the adhesive tape surface cooling device can achieve the adhesive tape surface cooling effect.

This invention discloses a plate heat exchanger that eliminates the internal coolant flow channel, relating to the technical field of heat pump thermal management systems for new energy vehicles. It includes a heat exchanger shell; a refrigerant heat exchange core housed inside the shell; a refrigerant inlet and outlet located on manifolds on both sides of the refrigerant heat exchange core and connected to these manifolds; a coolant inlet and outlet located on the outer surface of the shell; and a coolant immersion channel formed by the inner wall of the shell and the outer surface of the core, configured to allow direct contact between the coolant and the entire outer surface of the core. This invention eliminates the internal coolant flow channel of the original plate heat exchanger during welding, ensuring uniform heating of all welding points in the refrigerant flow channel. This design improves the welding quality of the heat exchanger and solves the leakage problem caused by incomplete welding, a common issue in traditional plate heat exchangers.

The invention discloses a control method for preventing the pitted surface defect of the surface of a hot-dipped Al-angle-rich zinc-aluminum-magnesium coating steel plate, and belongs to the technical field of steel plate hot dipping. The steel strip is cooled from 430 DEG C to 540 DEG C to 410 DEG C to 500 DEG C at the cooling rate of less than or equal to 15 DEG C / s after being discharged from the air knife; cooling from 410-500 DEG C to 370-430 DEG C of the surface temperature of the steel strip at the cooling rate of more than 15 DEG C / s and less than or equal to 35 DEG C / s; finally, cooling from 370-430 DEG C to below the eutectic point of 337 DEG C at the cooling rate of more than 35 DEG C / s and less than or equal to 50 DEG C / s; by configuring a post-plating staged cooling technology, the cooling rate of the surface of the plating layer is controlled, a large number of fine structures can be formed when crystallization and separation of an Al-rich phase, a Zn2Mg phase and a Zn phase are promoted, and the plating layer with the uniform and consistent surface and without pitted surface defects is formed.

The utility model discloses a novel roller cooling device, the arc pipe body is arranged at intervals with roller, and the water inlet end of arc pipe body is connected with the water inlet pipeline, and the water inlet pipe is supported through the support, and the support is composed of two symmetrical arc clamping plates, a plurality of nozzles are evenly distributed at one end of roller where the arc pipe body is located, and the spraying end is towards roller, the central axis of nozzle is set as 0 35 0 with the tangent direction of corresponding roller, avoids the perpendicular water spraying of nozzle to roller surface, makes the cooling water flow close to roller surface with the tangential direction, significantly reduces the water flow rebound loss, improves the cooling effect, and the divergent nozzle increases the cooling area, realizes the roller surface cooling uniformity, avoids the local thermal stress concentration, and the nozzle is evenly distributed on the arc pipe body with the central angle 15 20 15, and its direction is opposite to the roller rotating direction, and the water stays on the roller for a longer time, and the cooling effect is strengthened.