16 results about "Slow heating" patented technology

This invention discloses a method for manufacturing 3D display glass and its curved display glass, relating to the field of glass manufacturing technology. A conveying preheating box is attached to one side of the top of a multi-stage temperature control frame. Several pressure-equalizing hydraulic cylinders are equidistantly installed on the top of the conveying preheating box. Pressure-limiting fixing frames are attached to the bottom of the pressure-limiting fixing frames. Inlet and outlet electric slide rails are symmetrically installed at the bottom of the pressure-limiting fixing frames. Inlet and outlet sliding frames are installed at the bottom of the inlet and outlet electric slide rails via slide rail seats. A positioning electric slide rail is embedded at one end of the inlet and outlet sliding frame. A shaping top mold is fitted between two clamping fixing frames. This invention utilizes a combination of pneumatic hot bending, gravity hot bending, shaping hot pressing, and edge correction hot pressing. Furthermore, by using slow heating and slow cooling, along with mold control, the shape of the curved glass can be effectively controlled. Simultaneous operation of pretreatment and forming processes reduces the waiting time required during production.

The utility model discloses a kind of warm air water tank heating pipeline, belong to automobile technical field.It solves the problem of slow heating speed of new energy vehicle in prior art.It mainly includes PTC water tank heating circuit and battery cooling circuit;PTC heater, first water pump, second three-way valve, third three-way valve, warm air water tank and first temperature sensor are arranged in the PTC water tank heating circuit, heat exchanger, battery cooling water tank, second water pump, battery, first three-way valve and second temperature sensor are arranged in the battery cooling circuit, battery cooling circuit is connected first three-way valve by eighth branch pipe at battery one end, first three-way valve is connected battery cooling water tank and warm air water tank by first branch pipe and second branch pipe respectively, the warm air water tank and battery cooling water tank are connected second three-way valve by third branch pipe and fourth branch pipe respectively, the third three-way valve is connected warm air water tank and battery cooling water tank by fifth branch pipe and sixth branch pipe respectively.

This invention relates to a method for preparing a silicon nitride wear-resistant coating on the surface of a graphite part. The method involves coating the graphite part with polynitrosilane, followed by drying and subsequent decoking and high-temperature ceramization treatments. The process is precisely designed as a multi-stage heating decoking and high-temperature ceramization process. By strictly controlling the heating rate and holding time, the method avoids coating shrinkage and cracking caused by rapid heating, as well as resource waste and increased internal stress caused by excessively slow heating. Simultaneously, the decoking temperature is optimized to prevent excessive decomposition and escape of polynitrosilane or residual small molecules. This effectively solves the coating cracking problem caused by the difference in thermal expansion coefficients between graphite and silicon nitride, thereby obtaining a dense, uniform, and crack-free silicon nitride coating.

This utility model discloses a heating device for the production of water-based coatings, comprising a heating chamber; a heating unit disposed within the heating chamber for heating the water-based coating; a pressure relief unit disposed on the heating chamber for releasing internal air pressure; and a cleaning component disposed on the heating unit. This utility model utilizes the heating unit to heat the water-based coating both internally and externally, preventing heat loss and slow heating in certain areas, thereby improving the heating efficiency. The pressure relief unit releases excessively high air pressure generated during heating in real time, preventing the risk of explosive agglomeration due to gas expansion. Furthermore, the cleaning component, in conjunction with a rotating component, effectively cleans the water-based coating adhering to the inner wall of the equipment, enhances the uniformity of stirring and heating, and eliminates internal air bubbles, preventing pinholes and pitting after the paint film has cured.

This utility model relates to a heat treatment device for processing impact crusher liners. This utility model effectively solves the problems of slow heating, high energy consumption, uneven heating of the liner, and difficulty in controlling and maintaining a stable heating temperature in existing heat treatment equipment. This heat treatment device for impact crusher liner processing allows the liner to rotate both on its own axis and around a central axis, ensuring that all points on the liner surface periodically enter a high-intensity magnetic field zone, achieving three-dimensional uniform heating, fully heating all parts of the liner, and reducing temperature differences. The electromagnetic induction heating mechanism can perform segmented induction heating of the liner, preheating it before rapid austenitization, effectively improving the heating rate. The atomizing quenching mechanism can adjust the appropriate quenching state, uniformly quenching all parts of the liner, ensuring good performance. The liner rotation mechanism can simultaneously fix multiple liners, effectively improving processing efficiency and quality, and facilitating heat treatment of the liners.

This invention provides a high-frequency pulsed argon arc welding root welding process for bimetallic composite pipes. The root welding process includes a suitable inner cladding thinning bevel design, welding process parameters, and a high-frequency pulsed arc control method. This invention not only ensures good mechanical properties, appearance, and corrosion resistance at the root of the bimetallic composite pipe, but also allows for a slower heating rate at the pipe end and a shorter cooling time during welding, thereby significantly improving welding efficiency.

This invention discloses a manufacturing process for glass-ceramic products, the glass-ceramic products comprising a glass-ceramic substrate and a glaze coating applied to the glass-ceramic substrate. The manufacturing process includes: S1: providing a glass-ceramic substrate; S2: applying a glaze coating to the glass-ceramic substrate; S3: performing a firing process, the firing process including: S3a: conveying the glass-ceramic substrate with the glaze coating into a heating furnace; S3b: rapidly heating the glass-ceramic substrate to 710°C at a heating rate in the range of 20°C / min to 30°C / min; S3c: slowly heating the glass-ceramic substrate from 710°C to a maximum temperature in the range of 890°C to 930°C at a heating rate in the range of 1°C / min to 15°C / min; S3d: maintaining the maximum temperature for a certain period of time, in the range of 8 minutes to 25 minutes; and S3f: removing the glass-ceramic substrate from the heating furnace and cooling it to room temperature. The glass-ceramic products obtained according to this invention have an impact strength greater than 0.20 Nm.

The present application relates to a kind of vehicle thermal management system and vehicle, vehicle thermal management system includes: first air conditioning system and second air conditioning system;Because the boiling point of second working medium is less than the boiling point of first working medium, in low temperature state, second vehicle outer heat exchanger of second air conditioning system can be used to absorb heat from outside the vehicle and compensate heat to first air conditioning system through first heat exchanger, so as to improve the temperature of first working medium in first air conditioning system, thereby improving the heating capacity and heating efficiency of first air conditioning system, solving the problem of slow heating and poor heating effect of electric vehicle in low temperature or ultra-low temperature environment, improving the comfort of users;At the same time, the endurance of electric vehicle battery can be effectively improved.

The utility model relates to circuit board processing technical field, concretely discloses a hot gas formula tin -spraying device for printed circuit board processing, including processing bin, the left side of processing bin is provided with preheating subassembly, the inside of processing bin is provided with clamping subassembly, through the step -by -step heating of heating lamp inside preheating subassembly, to slow heating reduces the thermal stress of circuit board, cooperate infrared thermometer real -time detection heating temperature simultaneously, guarantee the stability of temperature, subsequently through clamping subassembly clamping circuit board, immerse tin liquid groove inside, after finishing, circuit board is placed in the surface of right side conveyer belt, through the operation of hot -blast even subassembly's hot -blast machine, the hot blast is guided into the inside of each fixed base in the bottom through first gas duct, subsequently through the inner nozzle and outer nozzle set up of fixed base bottom tin liquid on circuit board surface blows flat, guarantees the evenness of tin layer thickness, the hot blast that blows out simultaneously accesses the nitrogen gas in the nitrogen gas tank, reduces the oxidation and high temperature corrosion of circuit board.

This invention discloses a method for preparing cathode materials, specifically a method for drying and producing cathode materials. The drying method includes: rapid heating: rapidly raising the temperature of the ternary cathode material containing water to 100–110°C; slow heating: slowly raising the temperature of the ternary cathode material to 118–122°C, then adjusting the vacuum to -50 kPa–-80 kPa; pressure relief vacuum cycle: performing 5–7 pressure relief vacuum operations, each lasting 10–12 minutes. Each pressure relief vacuum operation involves: introducing nitrogen to adjust the vacuum to -22 kPa–-18 kPa for 1–6 minutes, then stopping the nitrogen supply and increasing the vacuum pump power to restore the vacuum to -50 kPa–-80 kPa; quantitative drying: raising the temperature to 145–155°C until the target moisture content is achieved. This drying method is time-efficient and yields good drying results.

This invention relates to the field of photovoltaic glass processing technology, specifically to a tempering process for ultra-thin fully tempered double-layer coated glass, comprising double-layer coated glass and double-layer coating. The thickness of the double-layer coated glass is 1.6-2.5mm, and the double-layer coating includes a bottom film and a surface film. This invention uses a tempering furnace with three zones (48 temperature control zones) along its length (heating, slow heating, and cooling) and seven segments along its width, with four segments as symmetrical temperature control axes. The non-coated surface uses a temperature curve of gradient heating, slow heating and heat preservation, and small-amplitude cooling. This ensures a consistent heating rate across all areas of the ultra-thin glass, avoiding deformation and breakage caused by localized overheating. It solves the problem of substandard particle size in ultra-thin double-layer coated glass, achieving satisfactory drop ball performance. Furthermore, by precisely controlling the temperature difference between the coated and non-coated surfaces, combined with segmented temperature control, it solves the problem of warping at the glass head after achieving the particle size target, completely resolving a core technical pain point in the industry.

The present application relates to the technical field of floor heating, and discloses a composite intelligent heat core floor heating, which comprises a building base surface, the bottom surface of the building base surface is paved with a floor heating structure, a plurality of shielding covers are connected and installed in the middle part of the floor heating structure, and the floor heating structure comprises, from bottom to top, a leveling base layer, a moisture-proof film, an extruded thermal insulation board, a nano intelligent heat core, a ventilation frame, a heat storage layer, an aluminum foil uniform heating layer and a decorative surface layer; the ventilation frame, the aluminum foil uniform heating layer and the decorative surface layer are provided in plurality, and the inner covers are connected and installed between the plurality of ventilation frames. The present application relies on far-infrared radiation heating, and the heating body feels warm and comfortable, and it is not easy to cause indoor dryness. The airflow completes heat exchange in the floor heating layer to form hot air, and the hot air is convected and radiated through the ground air outlet, so that the indoor temperature can be quickly raised, the problems of slow heating and cold ground in the early stage of traditional floor heating are solved, in addition, the water vapor is uniformly released with the hot air through the wet filter screen, the indoor air humidity is balanced, and the problems of dry mouth, dry nose and dry and rough skin after heating are avoided, and the living comfort is improved.

This invention discloses a method for preparing polyhedral single-crystal iron phosphate particles, belonging to the field of iron phosphate preparation technology. The method includes: diluting 85% concentrated phosphoric acid to 10%-30%, preheating to 40-80℃, adding iron powder to dissolve and prepare an iron-phosphorus solution with a P / Fe molar ratio of 1.5-3.0; preheating to 65-75℃, uniformly adding 120%-180% of the theoretical amount of hydrogen peroxide, and oxidizing at a constant temperature for 0.5-2 hours to form precursor crystal nuclei; heating to 75-85℃ at 1-3℃ / min, and aging at a constant temperature for 4-9 hours to transform crystals; filtering, washing, drying, calcining, and pulverizing to obtain the product. This invention achieves the controllable preparation of pure-phase, regularly morphologically regular polyhedral single-crystal iron phosphate particles through the synergistic control of low-concentration phosphoric acid, slow heating, and long-term aging, without adding any surfactants. Product D 50 The diameter is 4.5–6.5 μm, D 100 <80μm, sodium content <10ppm, potassium content <5ppm, green and environmentally friendly process, suitable for industrial production, can be used as a precursor for lithium-ion battery cathode material, and is suitable for the needs of new energy vehicles and energy storage fields.

This invention discloses a ceramic sphere thermal shock testing device and method based on induction heating, belonging to the field of high-temperature material performance testing. The device includes a sealed test chamber, a high-frequency induction heating system, a ceramic sphere support assembly, an inert atmosphere control system, a high-pressure helium annular jet rapid cooling system, and a temperature measurement and control system. High-frequency induction heating achieves rapid heating to 1500-2000℃ within 1-5 seconds, combined with annular helium jet cooling to achieve millisecond-level cooling within 10-100ms, accurately simulating extreme thermal shock conditions. The test method covers sample preparation, inert atmosphere establishment, rapid heating and cooling, and post-thermal shock testing. This device and method solve the problems of slow heating, difficult cooling boundary control, and unsuitability for spherical samples in traditional tests. It offers good repeatability and wide applicability, providing reliable support for evaluating the thermal shock resistance of silicon nitride, zirconium oxide, and other ceramic spheres.

This utility model discloses a preheating mechanism for a busbar heat shrink furnace, relating to the field of busbar processing technology. It aims to solve the technical problem of slow heating and increased energy consumption in current heat shrinking processes where the heat shrink sleeve is directly processed in the furnace. The mechanism includes a preheating component and an adjusting component. The preheating component consists of a ring shell and an inner ring, with the inner ring fixed within a recess in the ring shell. A mid-wave infrared heating plate is arranged in a ring array on the inner ring. The adjusting component is mounted on the upper surface of a base plate via an insert plate. The adjusting component consists of a positioning ring and a combination rod, with the insert plate mounted below the positioning ring. The positioning ring has rod holes on both its upper and lower sides, and connection ports on both sides. This utility model has the advantage of reducing energy consumption in the heat shrink furnace through preheating, further improving production efficiency.

This invention proposes a self-regulating antifreeze device for the liquid phase temperature of a flare tank, overcoming the shortcomings of existing technologies, such as slow heating speed of the storage tank and the inability to heat only the area near the steam pipe during the heating process. The device includes a tank body: a support leg is connected to the top of the tank body, a protective shell is connected above the support leg, a drive mechanism is installed inside the protective shell, a heating mechanism is installed below the drive mechanism, a connecting pipe is installed above the heating mechanism, and a steam valve is connected to the center of the connecting pipe. A sensor is also installed above the tank body, and a steam pipe is connected below the connecting pipe. The sensor automatically senses the internal temperature of the tank body. When the temperature is too low, the steam valve automatically opens, and the drive mechanism and heating mechanism heat the inside of the tank body, achieving automated heating without manual operation.