250results about How to "Low thermal conductivity" patented technology

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.

The invention belongs to the technical field of brake friction materials and powder metallurgy, and discloses a preparation and regulation method for a three-dimensional latticed structure in a copper-based brake friction material. The copper-based brake friction material is mainly composed of copper-coated iron powder, molybdenum disulfide, crystalline flake graphite, silicon dioxide, superfine copper powder and other functional components. Wherein the three-dimensional latticed structure is constructed by superfine copper powder, and the comprehensive performance of the copper-based brake friction material is improved through multiple excellent performances such as high heat conduction performance and mechanical strength of the three-dimensional latticed structure; according to the invention, structural design and preparation are carried out on raw material powder by adopting a method of prefabricated particle preparation and particle bonding and coating, so that all functional components are uniformly distributed on the friction material, a three-dimensional latticed structure can be constructed, and the mechanical property and tribological property of the friction material are greatly improved; the copper-based brake friction material is high in mechanical performance, stable in friction coefficient, high in heat conduction performance, low in wear rate and excellent in performance under extreme working conditions.

The invention discloses a preparation method of low-cost graphene oxide for a high-performance heat-conducting film, which comprises the following steps: S1, mixing a graphite raw material and an acid solution at 5 DEG C or below, controlling the temperature of a reaction system at 10 DEG C or below, adding an oxidizing agent, reacting for 0.5-1.5 hours, and carrying out solid-liquid separation to obtain a filter cake; s2, adding the filter cake into concentrated sulfuric acid, controlling the temperature of a reaction system to be below 15 DEG C, slowly adding an oxidizing agent, reacting for 1.5-2.5 hours, heating to 30-45 DEG C, and reacting for 0.5-2 hours to obtain a reaction solution; s3, diluting the reaction liquid, and terminating the reaction to obtain graphene oxide dispersion liquid; and S4, carrying out solid-liquid separation on the graphene oxide dispersion liquid to obtain a solid, wherein the solid is the low-cost graphene oxide for producing the high-performance heat-conducting film. The acid liquor comprises sulfuric acid, and the concentration of the sulfuric acid in the acid liquor is 30%-65%. According to the method, low-concentration sulfuric acid is firstly adopted for intercalation, then concentrated sulfuric acid is adopted for intercalation, and low-temperature and medium-temperature reaction systems are matched, so that the safety of the process is improved, the consumption of sulfuric acid and an oxidizing agent is reduced, and waste liquid output liquid is reduced.

The application relates to a dual-phase high-entropy ceramic material for high-temperature thermal barrier coatings and a preparation method thereof, in particular to a dual-phase high-entropy ceramic (La 0.2 Nd 0.2 Gd 0.2 Y 0.2 Ho 0.2 )2Zr2O7 with low thermal conductivity and high thermal expansion coefficient, which is mainly used for thermal isolation, thermal barrier coatings and other applications in high-temperature environments. The application is prepared by adopting a solid-phase reaction sintering process through accurate design of the combination of rare earth elements, forms a stable dual-phase structure, effectively inhibits grain growth through grain boundary pinning, and thus maintains a nanoscale grain structure. Meanwhile, the material can efficiently block heat transfer at high temperatures through optimization of phase proportion, and the thermal expansion characteristics are matched with a metal base layer, effectively avoiding the falling risk caused by the difference in thermal expansion of the two, and thus greatly improving the service life and reliability of the material in a high-temperature environment. The high-entropy ceramic material of the application can be widely applied to fields with high demand for high-temperature thermal isolation in aerospace, aviation, automobile industry and the like, is especially suitable for thermal barrier coatings, high-temperature thermal insulation materials and other high-temperature thermal insulation applications, and has important engineering application value.

The invention belongs to the technical field of solid waste treatment and utilization, and particularly relates to modified manganese slag and application thereof in preparation of a cement material. The modified manganese slag disclosed by the invention is prepared by a method comprising the following steps: uniformly mixing maleic anhydride grafted polyethylene, epoxy group modified manganese slag, epoxy group modified nano alumina fiber and epoxy group modified basalt fiber, and then performing melt extrusion to obtain a polyethylene grafted manganese slag-polybasic fiber compound, and uniformly mixing the polyethylene grafted manganese slag-polybasic fiber compound and 5-chlorosulfonyl-2-hydroxybenzoic acid, and carrying out melt extrusion to obtain the modified manganese slag. The basalt fiber and the nano alumina fiber are combined with the manganese slag through chemical bonds and polyethylene long chains to form a compound, so that the combination stability and dispersion uniformity of the basalt fiber, the alumina fiber and the manganese slag can be improved, and the basalt fiber and the alumina fiber can play an anchoring role in a cement material; the mechanical strength and the low-temperature freezing resistance of the cement material are improved.

The invention provides a current collector and a battery, which can reduce the weight of the current collector and the battery provided with the current collector while inhibiting the reduction of the conductivity of the current collector, and can inhibit the reduction of the thermal conductivity of the current collector. A current collector (100A) is provided with a support layer (110) and a conductive layer (120). The support layer (110) is configured from a resin composition having electrical insulating properties. The conductive layer (120) is laminated on the support layer (110). The conductive layer (120) is made of an alloy containing elemental magnesium, elemental aluminum, and elemental calcium.

A nitride semiconductor material having low lattice thermal conductivity and a heat flow switching element including the same are provided. The nitride semiconductor material according to the present invention is a metal nitride represented by M-Si-N-Te (where M represents at least one kind of transition metal element, and Te represents an arbitrary element), and has a thermal effusivity of less than 2000 Ws0.5 / m2K. In particular, the M is at least one of Cr, Mn, Ni, Mo, and W. In addition, a heat flow switching element according to the present invention includes an N-type semiconductor layer 3, an insulator layer 4 formed on the N-type semiconductor layer, and a P-type semiconductor layer 5 formed on the insulator layer, wherein at least one of the N-type semiconductor layer and the P-type semiconductor layer is formed from the nitride semiconductor material described above.

The application discloses a preparation method of anisotropic glass fiber aerogel, which comprises the following steps: preparing a glass fiber dispersion solution; preparing an aluminum dihydrogen phosphate solution; preparing a polyvinyl alcohol solution; uniformly mixing the three solutions, pouring into a customized mold, freezing until complete solidification, and then performing freeze drying to obtain the glass fiber aerogel. Due to the influence of multiple temperature gradients on the aerogel, ice crystals grow vertically along the temperature gradient to form lamellas, and different cold surfaces interact to cause them to grow along the radial plane to the center of the square mold, finally forming an array radiation structure composed of four cones. The glass fiber aerogel prepared through the synergistic cooperation of the freeze casting technology and the aluminum dihydrogen phosphate has anisotropy and highly ordered lamellas, and therefore exhibits good low thermal conductivity.

The invention relates to the technical field of coatings, and discloses a high-simulation-touch wood-grain-like aluminum veneer and a preparation method thereof. Comprising the following operation steps that an aluminum veneer is subjected to acid pickling, water washing and drying; coating silica sol, and performing semi-curing to form a transition layer; coating a layer of heat insulation coating on the surface of the transition layer, and performing primary curing to form a heat insulation layer; and then carrying out thermal transfer printing and secondary curing to form a wood-grain-like layer, so as to obtain the wood-grain-like aluminum veneer. According to the scheme, silica sol is used as a transition layer, modified polyurethane is introduced into the silica sol and the heat insulation coating, and the interface bonding force between the two layers is further improved through the synergistic cross-linking effect between molecules; the thermal insulation layer can effectively reduce the thermal conductivity of the aluminum veneer, so that the duration time of ice-cold feeling during touch is shortened, and the use comfort is improved.

The utility model relates to a kind of concrete double T plates, belong to concrete double T plate structure design technical field, specifically a large-span concrete double T plate, including double T plate body, still include;Positioning slot, positioning slot starts at the periphery of double T plate body, and the inside of each positioning slot is inserted with positioning block;Thermal insulation board, thermal insulation board fixed mounting is in the inner top of double T plate body;The utility model reaches the effect of reducing construction difficulty, facilitating worker installation, solves the high complexity of existing mould, difficult to realize mass production, substantially increase the cost of mould processing, and the precision requirement of on-site hoisting is high, increase the construction difficulty of staff, reduce the problem of work efficiency.

The utility model discloses a battery cell heat insulation pad capable of releasing heat and a battery pack, the battery cell heat insulation pad comprises a heat insulation pad arranged between two battery cells, a phase-change composite filler is arranged in the heat insulation pad, the phase-change composite filler absorbs the heat of the battery cells and expands, the phase-change composite filler expands to break through the heat insulation pad, and the phase-change composite filler is filled with the phase-change composite filler. Therefore, the heat is discharged outwards. The battery pack consists of a plurality of battery cells and a plurality of heat insulation pads, wherein each heat insulation pad is arranged between two battery cells. The heat insulation structure is used for blocking heat transfer among the battery cells, can actively release heat, and effectively reduces the risk of thermal runaway of the battery cells adjacent to the battery cells.

The invention discloses self-repairing aerogel as well as a preparation method and application thereof, and belongs to the technical field of new materials. The aerogel comprises a substrate aerogel layer, a self-repairing functional layer and a reinforced skeleton, wherein the substrate is SiO2 aerogel and is prepared by adopting a combustion synthesis method; the self-repairing functional layer is composed of a polyimide microcapsule-ultraviolet curing type siloxane repairing agent system embedded in the substrate and a nanofiber reinforced polyurea and temperature-sensitive repairing component composite coating coated on the surface; and the reinforced framework is a Ni-Ti memory alloy mesh support. Through a synergistic mechanism of'surface layer temperature-sensitive flow repair-deep microcapsule repair agent release-skeleton crack propagation inhibition ', crack repair is realized, stability is maintained under extreme temperature difference, and the radiation shielding efficiency is high. The problems that a traditional material is insufficient in repairing capacity under the extreme environment of the moon and depends on external maintenance are solved, the durability and safety of moon buildings are remarkably improved, and the important aerospace application value is achieved.

The invention belongs to the technical field of thermoelectric materials, and provides a composite P-type bismuth telluride-based material and a preparation method thereof in order to improve the thermoelectric performance of the thermoelectric materials, the composite P-type bismuth telluride-based material comprises a P-type bismuth telluride matrix with the chemical formula being Bi < 0.5 > Sb < 1.5 > Te < 3.2 > and a compound used for compounding, the chemical formula of the composite compound is selected from one or more of Cu2GeSe3, Ag8GeTe6 and Ag5Te3, and the chemical formula of the P-type bismuth telluride matrix is Bi < 0.5 > Sb < 1.5 > Te < 3.2 >. And the usage amount of the composite compound is 0.04-0.1% of the mass of the P-type bismuth telluride matrix. According to the P-type bismuth telluride-based composite material provided by the invention, crystal boundary, second phase and other defects are introduced after compounding to enhance phonon scattering, so that the lattice thermal conductivity is effectively reduced, and finally, the improvement of the material performance is realized by optimizing the carrier concentration and reducing the lattice thermal conductivity.

This invention discloses a high-performance vitrified microsphere composite polystyrene particle insulation board and its preparation method, comprising the following steps: premixing hydrophobic vitrified microspheres and expandable polystyrene particles coated with expanded graphite at a mass ratio of (2.5~4):1 to obtain composite lightweight aggregate. The insulation board prepared by this invention, with a dry density of only 184-193 kg / m³, exhibits a compressive strength as high as 0.275-0.302 MPa, significantly superior to traditional inorganic insulation boards (0.15-0.25 MPa) and organic insulation boards (0.10-0.15 MPa); its thermal conductivity is as low as 0.034-0.041 W / (m·K), and its insulation efficiency is more than 40% higher than that of traditional inorganic materials, while also possessing Class A fire safety performance; furthermore, the process is simple and controllable, with an industrial solid waste utilization rate of up to 70%, demonstrating significant economic benefits and environmental value, and possessing broad prospects for widespread application.

To provide a thermal insulation sheet that prevents peeling off of a resin layer, prevents falling off of a thermal insulation material component, has a low thermal conductivity, and has flame retardancy, a method for producing a thermal insulation sheet, and a battery pack using the above thermal insulation sheet. A thermal insulation sheet (10) contains: a thermal insulation material (2) containing inorganic particles (41); and a resin film (1) covering at least a part of a surface of the thermal insulation material (2).

The invention discloses a porous microstructure foaming white cement radiation refrigeration composite material and a preparation method thereof, and belongs to the technical field of building energy-saving materials.According to the material, sulphoaluminate white cement serves as a base material, a foaming agent is added, and evenly-distributed porous microstructures are formed in the preparation process; by utilizing the synergistic effect of the high reflection characteristic of the sulphoaluminate white cement and the enhanced scattering and heat insulation performance of the porous microstructure, the efficient radiation refrigeration function is realized; the problems that a traditional white cement material is low in radiation refrigeration efficiency and insufficient in heat insulation performance are solved, the preparation process is simple, the cost is controllable, the material can be widely applied to building exterior walls, roofs and other building envelopes, and remarkable energy-saving benefits and market application prospects are achieved.

The utility model discloses a kind of heat preservation airtight inspection grain door, including door frame, the inside left and right sides of door frame are hinged with door panel by hinge, further including sealing heat preservation mechanism;Sealing heat preservation mechanism: it includes baffle, avoidance groove, recess, sealing ring, L type slot, installation slot, sealing ring and heat preservation assembly, recess is set in the outer surface of the door panel, recess is equipped with sealing ring in its inside, the left side of the door panel of right side is equipped with baffle, the right side of the door panel of left side is equipped with avoidance groove, two door panels close, the front side of baffle and the back side of avoidance groove are pasted, this heat preservation airtight inspection grain door, sealing heat preservation mechanism is sealed to granary, when door panel closes, sealing ring and sealing ring cannot be exposed in outside, avoid the case of the occurrence of the sealing property of granary door due to sealing ring and sealing ring exposed easily aging or being gnawed by rodent, and heat preservation effect is good.

This utility model discloses a compartmentalized fireproof insulation board, relating to the field of insulation board technology. The insulation board includes two main panels, located on the front and rear sides of a whole assembly. Intersecting heat insulation panels are provided between the two main panels, forming multiple independent compartments. The inner wall of each main panel has multiple heat insulation holes, each containing multiple heat-conducting sheets. The compartments are filled with insulation material, and the inner walls are coated with fire-retardant paint. The heat insulation panels are fixed to the main panels with high-temperature resistant adhesive. Its working principle utilizes the double main panels and heat insulation panels to construct a frame; the heat insulation holes and insulation material achieve heat preservation; the heat-conducting sheets balance the temperature; and the compartments and fire-retardant paint provide fire resistance. This insulation board combines fire resistance and heat preservation, has a stable structure, and is economical.

This invention discloses a silicone foam sheet and a battery module and battery pack containing the same, belonging to the technical field of silicone foam materials. The linear expansion coefficient α of the foam sheet's pore diameter satisfies 1≤α≤8, and the linear contraction coefficient β of the foam sheet's pore wall thickness satisfies 4≤β≤9. This invention enables the silicone foam sheet to have more spatial gaps and a lower thermal conductivity under room temperature conditions; it also enables the silicone foam sheet to maintain an intact pore structure and high strength after sintering at high temperatures, thus preventing breakage. Therefore, the silicone foam sheet of this invention has good thermal insulation performance; simultaneously, the silicone foam sheet of this invention also exhibits good cushioning performance.

The invention relates to the technical field of aerogel, and provides a super-hydrophobic flexible aerogel heat insulation film as well as a preparation method and application thereof. The aerogel film comprises aerogel particles subjected to hydrophobic modification treatment and an in-situ fiberized fiber binder, the aerogel particles subjected to hydrophobic modification treatment are wound and anchored by a three-dimensional network structure formed by the in-situ fiberized fiber binder. The aerogel particles subjected to hydrophobic modification treatment and the fiber binder are used as raw materials, a specific process is adopted for processing, a fiber three-dimensional network anchored aerogel particle composite structure is constructed, the problem of aerogel brittleness and the process problem of uniform fibrosis of the fiber binder are solved, and the fiber three-dimensional network anchored aerogel particle composite structure is obtained. The preparation of the aerogel film with excellent comprehensive performance is realized.

This application belongs to the technical field of metal processing equipment and discloses a mold cooling device for precision metal hardware production and processing. It includes two molds that fit together, each mold having a spiral channel. A water outlet connected to the spiral channel is fixed to one side wall of each mold, and a water inlet connected to the spiral channel is fixed to the other side wall of each mold. The two water outlets and the two water inlets are connected by telescopic pipes made of high-temperature resistant material. A supply mechanism is provided on one side of each mold for injecting cold water into the water inlet and extracting the heated water from the water outlet for cooling. This application, through improvements to the existing structure, reduces conductive and contact thermal resistance compared to the prior art where heat must sequentially pass through four solid side walls: the mold cavity metal wall, the mold box wall, the sleeve layer, and the water pipe wall, thus improving the heat exchange rate.

A semiconductor processing device and its base support assembly include a central support pillar and at least three edge support pillars. The central support pillar coincides with the central axis of the base, limiting base eccentricity after heating and solving the eccentricity problem caused by the different linear expansion of the support pillar and the base. By reducing the cross-sectional area of ​​the central support pillar, the influence of light refraction and reflection on the thermal radiation optical path of the base is reduced. By reducing the contact area between the support pillar and the base, temperature conduction is reduced, thereby improving temperature uniformity. Each support pillar includes an upper pillar and a lower pillar made of different materials. The light absorption rate of the upper pillar is the same as or similar to that of the base, making the temperature difference between the upper pillar and the base approach zero, ensuring good temperature uniformity of the base. The upper pillar has extremely low thermal conductivity, which can block heat conduction from the upper pillar to the lower pillar, reducing heat loss, ensuring heat balance of the base, and improving the temperature distribution uniformity of the substrate.

This utility model relates to the field of kitchenware testing technology, and in particular to a fixing device for a wireless temperature and pressure recorder for testing the energy efficiency of an electric pressure cooker. The device includes a fixing frame, which comprises an adjustable-length support leg, a position indicator circle, a vertical limiting rod, a horizontal drag ring, and an adjusting buckle. The adjustable-length support leg is disposed on the position indicator circle and is used to fix and support the fixing frame while maintaining contact with the bottom surface of the inner pot. The vertical limiting rod is detachably connected to the adjustable-length support leg. One end of the adjusting buckle is fixedly connected to the horizontal drag ring, and the other end is slidably sleeved on the vertical limiting rod, used to adjust and lock the position of the horizontal drag ring in the vertical direction. This utility model solves the problems existing in the prior art, such as the inability to fix the position of the wireless temperature and pressure recorder in the inner pot, large test result errors caused by using other wired thermocouples, low test efficiency, easy breakage of thermocouple wires, and easy impact on the sealing performance of the electric pressure cooker.

This application relates to the field of coating technology, specifically disclosing a heat-insulating, flame-retardant, and anti-corrosion coating and its preparation method. A heat-insulating, flame-retardant, and anti-corrosion coating comprises the following raw materials in parts by weight: 50-80 parts of silicone-acrylic emulsion, 10-15 parts of epoxy resin, 30-40 parts of heat-insulating microcapsules, 15-21 parts of hollow glass microspheres, 3-5 parts of dispersant, 0.5-2 parts of polypropylene glycol diglycidyl ether, 1-5 parts of leveling agent, and 15-20 parts of water. The heat-insulating microcapsules comprise an aluminum powder core and a heat-insulating and flame-retardant capsule wall layer, the capsule wall layer material comprising acrylic resin and polyamide resin. The preparation method is as follows: hollow glass microspheres and heat-insulating microcapsules are added to silicone-acrylic emulsion and water and dispersed evenly to obtain a mixture; the dispersant, polypropylene glycol diglycidyl ether, epoxy resin, and leveling agent are added to the above mixture and mixed evenly to obtain the interior wall insulation coating. The composition of this application achieves a comprehensive improvement in heat insulation, flame retardancy, and anti-corrosion performance.

The invention discloses a low-thermal-conductivity phase change aerogel material as well as a preparation method and application thereof. The phase change enthalpy value of the material is 50J / g to 110J / g; the phase change temperature is 0-60 DEG C; and the heat conductivity coefficient is 0.08 W / (m.K)-0.1 W / (m.K). The novel low-thermal-conductivity phase-change material is generated by curing polydimethylsiloxane (PDMS) and the phase-change microcapsules. The phase change aerogel material is simple in synthesis process, relatively high in phase change enthalpy value and good in phase change cycle stability. The method has important application prospects in the two aspects of heat energy collection and heat insulation temperature control.

The present application relates to the technical field of high polymer materials, and particularly relates to a low-dielectric low-loss halogen-free epoxy plastic packaging material and a preparation method thereof; the present application adopts naphthalene type epoxy resin as a main body resin, cooperates with active ester curing agent and benzoxazine prepolymer as a modified auxiliary agent, and adds porous mullite microspheres with a double-layer coating of polydopamine and silicon dioxide on the surface as inorganic fillers; the benzoxazine prepolymer takes magnolol as a skeleton, is modified by a phosphorus flame-retardant group and is siloxane functionalized, introduces efficient halogen-free flame-retardant elements phosphorus and silicon, participates in the epoxy curing reaction through the benzoxazine ring, and the siloxane segment can improve the filler dispersibility; the porous mullite microspheres contain a large number of pores inside, and the external coating layer is dense and closed, so that the dielectric constant and thermal conductivity of the material can be effectively reduced without sacrificing the processability and reliability.

This utility model discloses a modular cold storage unit with good insulation performance, relating to the field of cold storage technology. It includes a movable base with multiple insulation panels on its top, arranged in a ring structure. A common top plate is provided on the top of each insulation panel. An embedding groove is formed on one side of each insulation panel, and an embedding block is formed on the other side, the embedding block fitting into the embedding groove. Cavities are formed inside both sides of each insulation panel, connected by a through-hole. A hook post is installed inside one cavity, and a rotating column is rotatably connected to the inner wall of the other cavity. A locking hook is fixedly connected to the outer wall of the rotating column, fitting into the hook post. A rotating hole is formed on the surface of the insulation panel, communicating with the rotating column. This utility model prevents the insulation panels from loosening, thus improving the insulation quality of the cold storage unit.

The invention provides a method for preparing a thermal insulation material by a dry method, the thermal insulation material and a household appliance, and relates to the field of thermal insulation materials. The method for preparing the thermal insulation material by the dry method comprises the following steps: providing a hard shell, wherein the hard shell is provided with a first opening and a second opening which are communicated with an inner cavity of the hard shell; the hard shell is filled with dispersed organic fibers from the first opening in an air blowing mode, so that the heat insulation material is formed. According to the technical scheme, the hard shell can provide high-strength internal and external support for the heat insulation material, the hard shell is filled with the dispersed organic fibers, the heat insulation material has the beneficial effects of being low in heat conduction, easy to process, clean and environmentally friendly, the organic fibers are in a dry state in the processing process in an air blowing mode, and therefore the heat insulation material is not prone to cracking. The final dryness can be ensured, and the processing efficiency is improved; in addition, no additional dispersant is needed, damage of the dispersant to organic fibers can be avoided, and the quality of the thermal insulation material is improved.

The utility model relates to the field of pot, disclose a kind of light and thin pot of cold and hot deformation prevention, including pot body, the weight reduction groove is recessed in pot body bottom, the weight reduction groove is cooperated with baffle, heat-conducting deformation-resistant structure is arranged between the weight reduction groove and baffle, the light and thin pot is greatly reduced pot body weight by being set weight reduction groove, since cooking, the highest temperature of pot body bottom directly with flame contact, the biggest difference of cold and hot change when food material is put in, therefore, the bottom of pot is most likely to be deformed due to cold and hot sudden change, by setting baffle and heat-conducting deformation-resistant structure, food material is contacted with baffle and not directly contacted with the bottom of pot, the deformation of the bottom of pot is greatly reduced, and since heat-conducting deformation-resistant structure conducts the temperature of the bottom of pot to baffle, compared with directly with flame contact, temperature on baffle can also be prevented from being too high, reduce the probability of its deformation, and heat-conducting deformation-resistant structure can also play the supporting role to further reduce deformation.