78 results about "Line heating" patented technology

The invention provides a system and method for inhibiting wafer scratching in double-sided polishing and double-sided polishing equipment. The system comprises: a shunt manifold valve group, which shunts a polishing liquid main flow path into at least three independent branches respectively corresponding to the inner, middle and outer areas of a polishing pad; the at least three online heating units are respectively arranged on each branch to independently heat the polishing solution; the temperature monitoring device comprises at least three temperature sensors which are arranged in different areas and is used for monitoring the temperature of the three areas in real time; and the control system independently regulates and controls the power of each heating unit based on temperature feedback, a preset non-uniform radial temperature gradient is established and maintained on the polishing pad, and the gradient is configured that the temperature of the middle area is not lower than that of the inner area, and the temperature of the inner area is higher than that of the outer area. Thermal deformation of the polishing pad is optimized through partitioned independent temperature control, and wafer scratching is effectively restrained.

The invention discloses a heating control method for an engine gas delivery pipeline of a marine gas generator set, which relates to the technical field of marine gas power systems, and comprises the following steps: collecting multi-dimensional environment state information of the gas delivery pipeline in real time, analyzing gas components and pressure fluctuation data, and calculating the temperature of the gas delivery pipeline; a theoretical dew point temperature and a potential paraffin precipitation temperature under real-time pressure are calculated by combining a fuel gas physical property database, a real-time heat exchange model is constructed by combining a pipeline outer wall temperature gradient and a cabin environment temperature, theoretical temperature attenuation curves of different positions of fuel gas in a pipeline are obtained, condensation and paraffin precipitation risk positions and degrees are predicted after comparison, and a real-time heat exchange model is established. And differential electric heat tracing control strategies of different sections of the pipeline are generated in combination with relative humidity data of the cabin. The method can adapt to the real-time physical property of gas and the heat exchange state of the pipeline section, and the heating control execution mode of the gas pipeline is optimized.

The invention relates to the technical field of photovoltaic material production equipment, and discloses a same-side online heater of a polycrystalline silicon ingot furnace, which comprises an ingot furnace body, and is characterized in that the front side of the ingot furnace body is fixedly connected with a mounting frame, and the inner side of the mounting frame is fixedly connected with a heating element fixing frame; a plurality of heating pipes are arranged on the inner side of the heating element fixing frame at equal intervals, connecting conductive columns are fixedly connected to the left side and the right side of the inner wall of the heating element fixing frame, and a flow guide mechanism is arranged on the outer side of the mounting frame and used for improving the heating efficiency of polycrystalline silicon in the ingot furnace body. The preheating gas conveying pipe utilizes heat gathered in the heat insulation layer to conduct preheating, the temperature difference between the preheating gas conveying pipe and a silicon material is reduced, the silicon material is evenly covered with protective gas through the dispersing device, the heat is more evenly distributed in the ingot furnace, more regular crystal structures with fewer defects can be easily formed, the ingot casting quality is improved, the energy consumption of the heating pipe is reduced, and the production cost is reduced.

1. The name of the design product: nitrogen heater (HT-N2). 2. The use of the design product: applied in semiconductors, as an online heating device in the nitrogen conveying pipeline, which can heat the nitrogen in the process of flowing, so as to meet the specific requirements of the downstream process on the temperature of nitrogen. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view. 5. The bottom of the design product is not easy to see or not visible during use, so the top view is omitted.

The utility model relates to the technical field of freezer drainage equipment, and discloses low-temperature freezer drainage pipe heating equipment which comprises a conveying pipe, a heating wire and a standby heating wire are arranged in the conveying pipe, a supporting beam is arranged on the inner top wall of the conveying pipe, a fixing clamp is arranged on the supporting beam, and the heating wire and the standby heating wire penetrate through the fixing clamp; the conveying pipe is sleeved with frames, every two frames form a set, a corrugated pipe is arranged between the sets of frames, and cavities are formed in the frames. The heating wire and the standby heating wire are arranged in the conveying pipe, when the main heating wire breaks down, the standby heating wire can immediately take over the heating task, and therefore it is guaranteed that the drainage pipe cannot be blocked due to freezing under any condition, and the supporting beam and the fixing clamp are arranged, so that the drainage pipe is more convenient to use. The stable positioning of the heating wire and the standby heating wire in the conveying pipe is ensured, and the heating wire damage caused by pipeline expansion or contraction is prevented.

This invention belongs to the field of metal material processing technology, and relates to an annealing process for zirconium alloy thin-walled short tubes and its heat treatment loading bin. Based on the specifications of the uniform temperature zone of the vacuum annealing furnace chamber, the specifications of the material rack, the heating method, the loading capacity, the outer diameter and length of the tube, the gas absorption characteristics of the material, and the stability of the tooling structure, this invention specifically designs a loading bin for the heat treatment of thin-walled short tubes for vacuum annealing furnaces. Combined with an improved furnace loading method, adjusted annealing heating curves and annealing process parameters, the heat treatment loading bin is placed on the material rack or loading platform of the vacuum annealing furnace. The tooling is assembled and fixed, the thin-walled short tubes are neatly placed in the heat treatment loading bin, anti-oxidation measures are taken, and process parameters such as the heating curve, heating temperature, and holding time are set according to the furnace loading capacity and tube performance requirements. This ensures that the thin-walled short tubes do not undergo dimensional deformation or surface scratches after heat treatment, improves straightness, prevents surface oxidation, and improves heat treatment efficiency.

The invention relates to the technical field of plate processing, and discloses insulation pressing plate processing and forming equipment and a production process thereof, and the equipment comprises a conveying mechanism, and a feeding mechanism, a preheating mechanism, a punching machine and a transferring mechanism which are sequentially arranged along the working procedure. The feeding mechanism drives a push column to move circularly through a belt, and single-sheet intermittent feeding of the plates is achieved. When a plate enters the conveying mechanism, the limiting mechanism compresses a compression roller through a spring to ensure the stability of the feeding direction of the plate, and the preheating mechanism heats and softens the plate online; the punching machine performs physical positioning and punch forming on the plate through the baffle; the transferring mechanism adsorbs finished products through a vacuum suction cup, and obstacle-avoiding discharging is achieved through cooperation of a rotating air cylinder and an electric sliding rail. According to the device, it can be ensured that plates face the right direction when entering a conveying line, machining deviation is effectively avoided, meanwhile, full-process automatic operation from feeding to discharging is achieved, and the production efficiency and the yield of insulating pressing plates are improved.

The utility model relates to the technical field of paperboard processing and drying, in particular to a paperboard production line heating plate up-and-down heating device, which is provided with a jacking mechanism with a screwed drive to be matched with a double-sided heating device, so that support plates are convenient to take and the practicability is improved on the basis of quickly drying the support plates; comprising a main rack, a hydraulic cylinder, a telescopic rod, an upper heating plate, a hollow bottom frame, a lower heating plate, guide sleeves, a sliding frame, an inner screw groove connecting frame, a reciprocating motor and a threaded rod, the middle of the bottom end in the main rack is connected with the bottom end of the hollow bottom frame, the top end of the hollow bottom frame is connected with the middle of the bottom end of the lower heating plate, and the guide sleeves are arranged in the left side and the right side of the lower heating plate correspondingly; the top end of the interior of the main rack is connected with the top end of a hydraulic cylinder, the output end of the hydraulic cylinder is in sliding connection with the outer side of a telescopic rod, and the bottom end of the telescopic rod is connected with the middle of the top end of an upper heating plate.

The invention relates to a skirting line heater, a skirting line heating control method and device, computer equipment, a computer readable storage medium and a computer program product. The method comprises the following steps: acquiring historical use information of a user for the skirting line heater; performing heating prediction based on a historical use time period and a historical heating temperature in the historical use information to obtain a predicted starting time period and a predicted heating temperature of a heating assembly of the skirting line heater; acquiring indoor environment information at a target moment before the predicted opening time period; in combination with the indoor environment information and the predicted heating temperature, the heating power of the heating assembly at the target moment is determined; in the process that the heating assembly works according to the heating power, the foreign matter falling risk degree of the heating assembly is determined based on the working information of the heating assembly; and executing risk management and control measures related to the foreign matter falling risk degree. By adopting the method, the safety of the skirting line heater in the using process can be improved.

The utility model discloses a heating plate device for a fusion sealing welding cover of an infusion bottle, which relates to the technical field of heating plates, and comprises two heating plate bodies consisting of a shell, a heating element and a heat dissipation component, one side of each heating plate body is connected with a connecting wire, and the rear side of each heating plate body is provided with an auxiliary component; and a connecting plate arranged on the rear side of the heating plate body is arranged in the auxiliary assembly, a groove is formed in the bottom end of the connecting plate, and rotating pipes are symmetrically and rotationally arranged on the inner wall of the groove. According to the utility model, through the arrangement of the auxiliary assembly, a plurality of heating plates can be installed or the number of the heating plates can be reduced according to the polypropylene infusion bottles with different sizes, so that the polypropylene infusion bottles with different specifications and bottle caps can be heated and sealed, and meanwhile, the heating plates are connected in parallel and are respectively provided with a branch switch; therefore, the specified heating plate can be used according to the height of the bottle opening of the polypropylene infusion bottle, and the polypropylene infusion bottle and the bottle cap can be heated and sealed conveniently.

The utility model discloses a temperature settable wireless heating device, which comprises a base device and a heating main body, the heating main body is arranged above the base device, a first induction device is arranged in the base device, a cavity is arranged at the middle lower part of the heating main body, and a second induction device and a heating device are arranged in the cavity. The base device is in induction connection with a second induction device in the heating main body through a first induction device, and the second induction device supplies power to the heating device for heating; according to the utility model, the base device does not heat, the base upper cover is of a closed integral structure, the liquid dripping on the base upper cover does not cause short circuit or scald risk, the liquid dripping on the base does not boil and splash after being heated, and the safety and the comfort are greatly improved; the temperature sensor is attached to the inner layer of the heating body, the detection precision of the temperature sensor is improved, and the technical problem that according to an existing heating kettle, the liquid temperature sensed by the outer side wall of the kettle body is detected through infrared rays, and the accuracy is low is solved.

The invention discloses a bonding palladium-plated copper wire heating system and a synergistic process thereof, and relates to the field of bonding processing, the bonding palladium-plated copper wire heating system comprises an electroplating pool, a heating seat and a heat treatment seat, a heating cavity is formed in the heating seat, a sealing cover is detachably connected to the heating seat, and a liquid inlet pipe and a liquid outlet pipe are arranged between the electroplating pool and the heating seat; the liquid inlet pipe and the liquid discharge pipe are arranged on the two sides of the heating base respectively, a liquid pump and an electronic thermometer are arranged on the liquid inlet pipe, the electronic thermometer is used for controlling the rotating speed of the liquid pump, and when the temperature of the electronic thermometer rises, the rotating speed of the liquid pump is reduced; heating rods are arranged on two sides of the heat treatment cavity, a conveyor belt is driven at the bottom of the heat treatment cavity, and a driving part for driving the conveyor belt to convey is arranged on the heat treatment seat. The temperature of the electroplating liquid in the electroplating pool is better ensured, and the convenience of using the heating device is improved.

The utility model discloses a heating panel mounting seat and an infrared heating plate, and relates to the field of infrared heating source equipment, the heating panel mounting seat comprises a base, the base is provided with an accommodating groove, the accommodating groove is provided with a conductive device mounting position and a temperature measuring device mounting position, a conductive device is arranged in the conductive device mounting position, the conductive device is provided with a power supply end and a wiring end, and the temperature measuring device mounting position is provided with a temperature measuring device. The power supply end is located in the containing groove and faces a groove opening of the containing groove, the temperature measuring device is arranged in the temperature measuring device installation position, the temperature measuring device is provided with a temperature measuring end, the temperature measuring end is located in the containing groove and faces the groove opening of the containing groove, the infrared heating plate heating panel and the heating panel installation base are arranged, and the heating panel is fixed in the containing groove in an adhesive mode. The electrode of the heating panel is in contact with the power supply end of the conductive device, and the heating panel is in contact with the temperature measuring end of the temperature measuring device. The heating panel can be installed without opening holes, stable power supply of the heating panel is guaranteed, the temperature measuring device can be in direct contact with the heating panel to achieve heat conduction type temperature measurement, and the temperature measuring result is visual and accurate.

The invention discloses a heating assembly and a heating pipe, and relates to the technical field of diesel vehicle aftertreatment systems.The heating assembly comprises a heating layer and a wire, and the heating layer is of a spiral strip structure and can be wound around the pipe wall of a pipe to be heated; the wire is embedded in the heating layer, and one end of the wire is provided with a connector and can be externally connected with a power source. The wires are made of tinned copper wires. And the heating layer is made of a PTC (Positive Temperature Coefficient) material. The heating assembly and the heating pipe provided by the invention are good in adaptability and can reduce stock pressure.

The invention discloses a coating all-in-one machine which comprises a high-frequency machine, a steel wire and an optical fiber, an auxiliary wheel mechanism is arranged on one side of the high-frequency machine, and a coating machine is arranged on the side, away from the coating machine, of the auxiliary wheel mechanism. A steel wire is arranged on the side, away from the auxiliary wheel mechanism, of the coating machine. The high-frequency machine, the auxiliary wheel mechanism, the coating machine and the air cooling device are arranged from left to right. The coating all-in-one machine provided by the invention is used for coating steel wires and can be linked with optical cable production lines, extruded materials are suitable for EAA and the like, meanwhile, three steel wires can be coated at the same time by improving the coating machine head, the extruded appearance is round and smooth, and the adhesive force can reach the standard. The thickness of a coating layer is adjustable, the production line is high in reliability and attractive in appearance, online heating, gluing and cooling of the steel wire can be achieved, optical cable production lines can be linked, the production process is simplified, the production efficiency is improved, and the production cost is saved.

This utility model provides a pine resin heat-insulating and anti-clogging conveying pipeline, relating to the technical field of pine resin conveying devices. It includes a main pipe, which comprises a liquid inlet section, a narrowing section, a throat section, an expanding section, and a liquid outlet section, connected end-to-end and fixed to each other. The narrowing section has a truncated conical structure, with the inner diameter of its input end being the same as that of the liquid inlet section, and the inner diameter of its output end being the same as that of the throat section. A heating mechanism is fixedly installed on the outer wall of the throat section, and an insulation pipe is fixedly installed on the outer sleeve of the main pipe. Through the variable diameter structure of narrowing for acceleration and expanding for flow stabilization, the flow state of the resin is actively optimized. After entering the throat section, the kinetic energy of the resin is significantly increased, breaking the laminar flow state and eliminating the stagnant zone at the pipe wall boundary, preventing impurities from depositing. Combined with precise local heating in the throat section, replacing full-line heating, energy consumption is significantly reduced. The external insulation pipe further suppresses heat loss, effectively solving the pipeline blockage problem caused by temperature decreases during long-distance transport, significantly improving production continuity and reducing maintenance costs.

The utility model belongs to the technical field of equipment heating, and particularly relates to a device suitable for pulse extraction column plate section heating. The device comprises a plurality of heating pipelines arranged in parallel; the heating pipeline is arranged around the plate section of the 2BX column and is parallel to the plate section; a preset distance is formed between the heating pipeline and the outer wall of the plate section; and hot water with a preset temperature is introduced into the heating pipeline. Heat transfer is used in a heating mode, water is used as a medium, cost is low, recycling can be achieved, damage is not prone to occurring, maintenance is avoided, radiation injury to personnel is greatly reduced, and the problem that the temperature of 2BX pulse column plate section feed liquid of a spent fuel reprocessing plant cannot meet the design requirement is solved.

The invention discloses a line heating process temperature field simulation method based on mixing of a heat source and a cold source, and belongs to the field of numerical simulation. The method comprises the following steps: acquiring temperature fields of a sample steel plate under different process parameters by using an infrared thermal imager so as to test a temperature matrix and a distance weight of the sample steel plate under different process parameters of heating and water-cooling heat exchange; establishing a weighted Gaussian mixture heat source model, and executing heat source-cold source weighted Gaussian mixture model estimation on the sample points of the sample steel plate based on the temperature matrixes and the distance weights under different process parameters; and fitting the effective radiuses of heating and cooling based on the estimation results under different process parameters so as to obtain a Gaussian mixture heat source model under different process parameters. According to the scheme, the Gaussian mixture heat source model containing the heat source and the cold source is provided, the temperature field of the line heating process is simulated, and compared with simple boundary setting water cooling, the accuracy of a finite element calculation result is guaranteed, and the calculation time is saved.

A vaporizer atomizer with a heating layer (210) comprising one or more traces. The heating layer (210) includes a first surface and a second surface. A frame layer (220) is disposed on the first surface of the heating layer (210) and comprises an opening that exposes at least a portion of the one or more traces therethrough. A wicking layer (230) is disposed on the second surface of the heating layer (210) and aligned with at least a portion of the one or more traces.

This invention belongs to the field of metallic materials technology, specifically relating to a gradient-structured chromium-zirconium-copper alloy wire rod and its preparation method. The preparation method includes the following steps: (1) selecting a billet, (2) online heating treatment, and (3) secondary annealing heat treatment. By setting an online heating process, this invention adjusts the grain size of the chromium-zirconium-copper alloy wire rod, making the outer circumference of the chromium-zirconium-copper alloy wire rod have coarse equiaxed grains, while the inner part has fine equiaxed grains, thus constructing a gradient-structured microstructure. The chromium-zirconium-copper alloy wire rod with a gradient structure prepared by the process of this invention has relatively coarse grains in the surface area, thus exhibiting better electrical conductivity; while the core area has fine grains, enabling the material to maintain high mechanical properties.

The application discloses a hydrogen sensor based on a ceramic MEMS process and a preparation method thereof, and belongs to the technical field of hydrogen sensors. In order to improve the high strength and good heat dissipation performance of the hydrogen sensor, the application comprises a substrate, a hollow region, a triangular gas sensitive region, a measurement outer lead, a heating sensitive electrode and a pad; the upper region and the lower region in the substrate are of the same structure, the upper region serves as a sensitive region, and the lower region serves as a compensation region; the structure of the upper region and the lower region comprises the triangular gas sensitive region arranged at the center of the region, the outer side of the side of the triangular gas sensitive region is respectively arranged with the hollow region, the triangular gas sensitive region is covered on the heating sensitive electrode, and the heating sensitive electrode is connected with the pad through the measurement outer lead; the pad is arranged relative to the top corner line of the triangular gas sensitive region and is arranged between the hollow regions; and the heating sensitive electrode is a vortex line disc structure. The application has high reliability.

The utility model discloses a centralized paying-off, annealing and micro-drawing device for enameled wires, which belongs to the technical field of enameled wire production and comprises a paying-off device, an annealing device and a micro-drawing device, the paying-off device comprises a paying-off wheel, a guide wheel and a driving motor, the driving motor can drive the paying-off wheel to rotate for paying off, and the guide wheel can guide the paid-off enameled wires; the annealing device comprises a conveyor belt and a heating device, the conveyor belt can convey enameled wires, and the heating device can heat the enameled wires; the micro-drawing device comprises a servo motor and can draw the enameled wire. According to the utility model, the pay-off wheel can stably pay off the enameled wire from the reel to ensure smooth proceeding of subsequent processes, the driving motor drives the enameled wire to pay off through the pay-off wheel, and the guide wheel can guide the enameled wire to flow along a predetermined track, so that the problems of non-uniform pay-off and wire winding or breakage are avoided, and the stability of the overall quality of the enameled wire is ensured. And the heating device can ensure uniform heating of the enameled wire.

The utility model provides a corrosion-resistant online heater. The corrosion-resistant online heater comprises an end cap, a connecting block, a heating pipe and an electric heating wire, the number of the end caps and the number of the connecting blocks are both two, and the number of the heating pipes is multiple. A plurality of through holes are formed in the connecting block; one end of each heating pipe is inserted into the corresponding through hole of one connecting block, and the other end of each heating pipe is inserted into the corresponding through hole of the other connecting block; an electric heating wire is arranged on the periphery of each heating pipe in a surrounding manner; two ends of each heating wire are respectively connected with leads; one end cap sleeves one side, deviating from the heating pipe, of each connecting block; a liquid flowing space is formed in the end cap and used for communicating the heating pipes, and a liquid inlet and a liquid outlet are further formed in the end cap; the liquid inlet / outlet is communicated with the liquid flowing space; the end caps, the connecting blocks and the heating pipes are all made of corrosion-resistant materials. The corrosive liquid heating device is suitable for heating corrosive liquid and is high in heating efficiency.

The invention provides a high-performance titanium alloy pipe forming process and system. According to the high-performance titanium alloy pipe forming technology and system, a mold body, a first pushing rod, a second pushing rod, an extrusion sleeve, a core rod structure and a temperature control assembly are included, the core rod structure is composed of two core rod sections which are connected through a hinge piece and internally provided with heating rings, and dynamic bending is achieved through cooperation of an arc-shaped guide rod and a sliding groove; the temperature control assembly comprises a U-shaped heating rod, a linear heating rod, a core rod inner heating ring and a closed-loop cooling water channel, the U-shaped heating rod and the linear heating rod are arranged in a partitioned mode, and the closed-loop cooling water channel is integrated in the first pushing rod. By means of the structure, precise partition temperature control over the inner side, the outer side and the wall thickness direction of the bent area of the titanium alloy pipe is achieved, dynamic rigid inner support conforming in the whole process is provided, rapid fixed-point cooling can be achieved after forming, and the problems of uneven wall thickness, section distortion, wrinkling and springback in the traditional technology are effectively solved through the method.

The embodiment of the utility model provides a skirting line heating structure, and relates to the field of heaters. Comprising a shell and a serial aluminum heating body, an air inlet hole is formed in the bottom face of the shell, and heating holes are formed in the top face, the front side face and the rear side face of the shell; one end of the shell is sealed by a side plate; the two ends of the aluminum-stringed heating body are fixed in the shell through support plates respectively. The humidifying body is arranged at the end, away from the side plate, of the shell and comprises an outer cylinder, a water tank, an oscillating plate and a control panel, one side of the outer cylinder is connected with the shell and provided with a heat insulation plate, an atomizing chamber is arranged at the bottom in the outer cylinder, and a mist outlet is formed in the top of the outer cylinder; a water outlet is formed in the bottom of the water tank; the oscillating plate is arranged in the atomizing chamber; the control panel is embedded in the side wall of the outer cylinder. Heating and humidifying are integrated, bottom-to-top rising type heating warming and humidifying drying relieving can be achieved at the same time, heating is more three-dimensional and more comprehensive, and the heating effect is good.

An inline heating system for a dialysis machine is disclosed. In an example, the inline heating system includes an inline heater comprising a heater element. The inline heating system also includes a control unit configured to compare a rate of change in heater element resistance to a set maximum rate of change in heater element resistance as part of a no flow or low flow condition detection algorithm implemented by the control unit. Power applied to the inline heater is stopped when a no flow or low flow condition is detected using the no flow or low flow condition detection algorithm to prevent overheating of the inline heater.

The application discloses a line-shaped infrared focusing heater and belongs to the technical field of infrared heating. A focusing piece connecting assembly is arranged at the opening of a focusing rotating groove. A driving gear assembly is arranged on one side of a gear limiting connecting spring assembly. A heating spotlight assembly is arranged on one side of the inner wall of a first protective shell and a second protective shell. A positioning assembly is arranged at the connecting position of a first connecting block, a second connecting block and a third connecting block. When a half gear rotates, the connecting rotating rod, the first strip-shaped focusing piece, the second strip-shaped focusing piece and the third strip-shaped focusing piece are driven to rotate to adjust the focusing angle. When the main half gear and the half gear are not engaged, the first strip-shaped focusing piece, the second strip-shaped focusing piece and the third strip-shaped focusing piece are pulled back to the original position through the connecting hook, the limiting sleeve and the limiting spring, so that the temperature is convenient to control, the heating point is convenient to focus, the heating angle is convenient to adjust, the position can be limited, and the rotation is convenient.

The invention belongs to the technical field of continuous casting, and particularly relates to an on-line heating method for a surface layer and a subsurface of a large-section casting blank, which comprises the following steps of: arranging heating devices in front of straightening rollers of a large-section casting blank continuous casting machine, between the straightening rollers and between support rollers in front of the straightening rollers, and heating an area within 20mm between the surface layer and the subsurface of the large-section casting blank, the temperature of the surface layer and the area within 20 mm under the surface of the large-section casting blank ranges from the lower temperature limit of the thermoplastic temperature interval of the cast steel grade to 1250 DEG C before a straightening roll and in the straightening process, and the percentage reduction of area of the surface layer and the area within 20 mm under the surface of the large-section casting blank is larger than or equal to 0.4. By controlling the temperature of the surface layer of the casting blank and the temperature of the area within 20 mm under the surface in front of the straightening roll and in the straightening process, the surface layer and subsurface plasticity of the large-section casting blank is improved, defects generated in the straightening process of the casting blank are remarkably restrained, and the surface layer quality and the yield of the casting blank are improved.

To provide a distributed on-line heating system for production lines to improve the low supply capacity and lack of flexibility of on-line heating systems. [Solution] The heating system of the present invention comprises a supply pump, a process tank, and at least two heating units connected between the supply pump and the process tank. The heating units include heating tubes, connecting pipes, and a first control valve, a second control valve, a third control valve, and a fourth control valve provided on the connecting pipes. The first control valve connects the output end of the supply pump to the input end of the heating tube. The second control valve connects the output end of the heating tube to the input end of the heating tube of the next heating unit. The third control valve connects the input end of the heating tube to the input end of the heating tube of the next heating unit. The fourth control valve connects the output end of the heating tube to the input end of the process tank and is arranged in parallel with the second control valve.

The utility model discloses a winding on-line diaphragm heating device which comprises a mounting plate, four groups of unwinding rollers and a group of winding rollers are arranged on the mounting plate, two groups of passing rollers are arranged between each group of unwinding rollers and winding rollers, and a first pole piece, a second pole piece, a first diaphragm and a second diaphragm are respectively arranged on the four groups of unwinding rollers in an unwinding mode. Double-sided heating assemblies are symmetrically arranged on the upper sides and the lower sides of the first pole piece, the second pole piece, the first diaphragm and the second diaphragm between the adjacent passing rollers, preheating assemblies are installed on the outer sides of the four sets of unwinding rollers, and the double-sided heating assemblies and the preheating assemblies are all installed on an installation plate. Compared with the prior art, the utility model has the advantages that the performance of the manufactured naked battery cell in a preheating furnace is more excellent in an on-line diaphragm heating mode, the contractibility of the diaphragm is effectively controlled, and the short-circuit risk of positive and negative pole pieces caused by excessive contraction of the diaphragm is greatly reduced, so that the overall safety performance of the battery cell is improved.