563results about How to "Improve high temperature resistance" patented technology

The invention provides a back contact photovoltaic cell piece capable of preventing stacking scratch in a high-temperature passivation process. The back contact photovoltaic cell piece comprises a back contact photovoltaic cell piece body and a plurality of soft isolation protrusions located on the light receiving face of the back contact photovoltaic cell piece body. The soft isolation protrusions are used for supporting photovoltaic cells to be mutually isolated when the photovoltaic cells are stacked layer by layer, and the soft isolation protrusions are resistant to high temperature of 300 DEG C and do not become sticky or yellow within 3 hours. According to the invention, the soft isolation projections are arranged on the light receiving surface of the back contact photovoltaic cell sheet body to support mutual isolation of the photovoltaic cell sheets when the photovoltaic cell sheets are stacked layer by layer, so that the photovoltaic cell sheets can be protected from being scratched in the stacking and moving process; the flexible isolation protrusions are arranged on the back contact photovoltaic cell piece, the flexible isolation protrusions can be prevented from scratching the surface of the photovoltaic cell piece due to the specific flexibility of the flexible isolation protrusions, meanwhile, the flexible isolation protrusions can bear the passivation temperature of 300 DEG C or above and do not crack or yellow or adhere to the cell piece, and therefore it can be ensured that the back contact photovoltaic cell piece is subjected to high-temperature passivation in a multi-layer stacking mode, and the passivation efficiency is improved.

The application provides a low-temperature sintering silicon nitride ceramic powder, a silicon nitride ceramic and a preparation method thereof, and uses beta silicon nitride powder as raw material and low-melting-point glass powder as a sintering aid. The beta silicon nitride powder with a content of 75-90wt% and a particle size range of 0.5-1um is selected, and the low-melting-point glass powder with a content of 10-25wt% is added. The mixed powder is ball milled, dried and pressed into a sheet, and then cold isostatic pressing is carried out, and pressureless sintering is carried out at 1400-1600 DEG C under a nitrogen atmosphere to obtain a silicon nitride ceramic material. The beta silicon nitride powder provided by the application can directly sinter the beta silicon nitride ceramic at low temperature. The preparation method of the silicon nitride ceramic provided by the application reduces the sintering temperature of the silicon nitride, improves the preparation efficiency of the silicon nitride ceramic, and is mainly applied to refractory fire-resistant materials.

This application relates to the field of organosilicon polymer materials, specifically disclosing a method for preparing and applying a functionalized MQ silicone resin. A method for preparing a functionalized MQ silicone resin includes the following steps: (1) raw material pretreatment; (2) simultaneous addition reaction: mixing and reacting a hydrogen-containing MQ silicone resin, a terminal olefin monomer containing a benzocyclobutene functional group, and a terminal olefin monomer containing a C-F bond; (3) post-treatment to obtain the functionalized MQ silicone resin; wherein the molar ratio of Si-H bonds in the hydrogen-containing MQ silicone resin, C=C bonds in the terminal olefin monomer containing a benzocyclobutene functional group, and C=C bonds in the terminal olefin monomer containing a C-F bond is 1:(0.2-0.6):(0.1-0.4). This application enables the synergistic effect of the rigid benzocyclobutene group and the fluorinated flexible segment, one-step grafting, and structural controllability, ultimately preparing a functionalized MQ silicone resin with excellent dielectric properties, high temperature resistance, low-temperature flexibility, good hydrophobicity, and excellent mechanical strength.

The application discloses a preparation method of a TOPCon cell and the TOPCon cell. The preparation method comprises the following steps: providing a TOPCon cell process sheet, performing laser slotting treatment on a first preset fine grid line area and a second preset fine grid line area respectively, forming a first transparent conductive material in the slotting structure corresponding to the first preset fine grid line area to form a first fine grid line, forming a second transparent conductive material in the slotting structure corresponding to the second preset fine grid line area to form a second fine grid line, performing silk screen printing and sintering treatment in the first preset main grid line area to form a first main grid line, and performing silk screen printing and sintering treatment in the second preset main grid line area to form a second main grid line, thereby obtaining the TOPCon cell. The above method solves the problem that the fine grid line blocks sunlight from irradiating on the surface of the cell sheet, thereby affecting the photoelectric conversion efficiency of the TOPCon cell.

This invention belongs to the field of glass technology and relates to a high-temperature resistant structural glass material, its preparation method, and its applications. The glass is composed of the following components by mass percentage: 60%-70% silicon dioxide, 5.5%-11% boric acid, 0.1%-5% aluminum hydroxide, 0%-3% potassium nitrate, 5.5%-13% potassium carbonate, 0%-12% sodium carbonate, 0.1%-4% calcium carbonate, 0%-2% calcium fluoride, 0%-1% lithium carbonate, 0%-2% basic magnesium carbonate, 0.1%-1% titanium dioxide, 0%-2% zirconium dioxide, and 0%-1% cerium dioxide; the total mass percentage of potassium nitrate, potassium carbonate, sodium carbonate, and lithium carbonate does not exceed 22%. This structural glass possesses a high softening temperature, a suitable coefficient of thermal expansion, high-temperature resistance, thermal shock resistance, and processing performance, making it suitable as a structural material for optoelectronic devices.

The invention relates to the technical field of high-performance polymer materials, in particular to low-dielectric and high-temperature-resistant modified cyanate ester resin and a preparation method thereof. Advantages and characteristics of bisphenol A type cyanate ester monomers and bisphenol M type cyanate ester monomers are combined, and the dielectric property and the thermal stability are remarkably improved. Diallyl bisphenol A is introduced as a network structure modifier, the phenolic hydroxyl group of the diallyl bisphenol A adjusts the curing reaction rate, and the allyl and bisphenol A structures of the diallyl bisphenol A finely regulate and control the rigid-flexible balance of a cross-linked network through chemical copolymerization, so that the curing process is controllable and the final network structure is optimized. Meanwhile, a toughening system is innovatively designed, epoxy-terminated liquid nitrile rubber is adopted for toughening, stable micron-scale rubber particles are formed in a resin matrix in a chemical bonding mode, and the fracture toughness is improved. The modified resin has excellent dielectric properties, high heat resistance and a wide process window, and meets the strict requirements of a new generation of low observability aircrafts on a bearing-stealth integrated composite material matrix.

The invention discloses an elastic amorphous PCTG material and a preparation method thereof, and the elastic amorphous PCTG material comprises the following raw material components: terephthalic acid, ethylene glycol, 1, 4-cyclohexanedimethanol, iso-acid and iso-alcohol. Wherein the iso-acid comprises adipic acid, and the iso-alcohol comprises 1, 4-butanediol, polyethylene glycol and methoxy polyethylene glycol. The PTA, EG and CHDM are used as a basic reaction system of the PCTG material, the TG and TM temperatures of the material are increased by adding the CHDM and controlling the dosage of the CHDM, and then the high-temperature resistance of the material is improved. And meanwhile, by introducing iso-acid and iso-alcohol which are different from those of a basic reaction system, the regularity of molecules is changed, so that the elasticity of the material is improved. The TG temperature is 90-105 DEG C, the melting peak value is 180-230 DEG C, the tensile strength is larger than or equal to 50 MPA, the elastic modulus is 1200-1500 MPa, and the elongation at break is larger than or equal to 600 parts.

The application belongs to the technical field of carbonyl sulfur hydrolysis catalysts, and discloses a high-efficiency sulfur-resistant catalyst for carbonyl sulfur hydrolysis, a preparation method and application thereof.The preparation method comprises the following steps: (1) preparing a porous ceramic carrier containing alumina, titanium dioxide and zirconium dioxide; (2) in-situ growing a metal organic framework material containing lanthanum, bismuth and cerium on the surface of the porous ceramic carrier by using a solvothermal method; (3) performing a calcination treatment on the porous ceramic carrier loaded with the metal organic framework material in an oxygen-containing atmosphere to obtain a catalyst precursor; and (4) performing a reducing gas plasma bombardment treatment on the catalyst precursor to obtain the high-efficiency sulfur-resistant catalyst.The high-efficiency sulfur-resistant catalyst has high-efficiency low-temperature activity, excellent sulfur resistance and long service life.

The application relates to the technical field of AOC connector, and discloses a high-toughness bending-resistant AOC connector and a preparation method.The AOC connector comprises an optical cable assembly and an AOC connector head; the optical cable assembly comprises an optical fiber, an aramid yarn layer, a polyethylene outer protective layer and a braided layer; polyethylene, 4-hydroxystyrene grafted polyethylene, 1,3,5-tri(4-benzoxazinylphenyl)benzene and the like are mixed, extruded, granulated and heat-treated to obtain the polyethylene outer protective layer; the 1,3,5-tri(4-benzoxazinylphenyl)benzene contains multiple oxazine ring crosslinking polymerization sites, and crosslinking reaction occurs with the phenolic hydroxyl structure of the grafted polyethylene, the crosslinking degree of the molecular chains in the polyethylene is increased, the polyethylene molecular chains are not prone to relative slipping under external force, the ability to resist external force deformation is increased, the polyethylene outer protective layer has good strength and high-toughness bending resistance, and the bending resistance and protection performance of the AOC connector optical cable are improved.

The application belongs to the technical field of putty, and particularly relates to a high-temperature-resistant CHPO curing putty with good polishing performance and a preparation method thereof. The high-temperature-resistant CHPO curing putty with good polishing performance comprises an A component and a B component. The A component comprises the following raw materials in parts by weight: linseed oil modified unsaturated polyester resin 140-160 parts, oleic acid modified air-drying unsaturated polyester resin 40-60 parts, dicyclopentadiene modified unsaturated polyester resin 90-110 parts, styrene 30-40 parts, drier 5-8 parts, accelerator 0.1-1.2 parts, dispersant 3-5 parts, thixotropic agent 8-12 parts, titanium white powder 12-16 parts, talc powder 400-500 parts, and pre-expanded polymer microspheres 5-10 parts. The application effectively solves the problems of poor polishing performance, poor adhesion to water-based epoxy primer and poor high-temperature resistance of traditional CHPO curing putty.

The application belongs to the technical field of sand consolidation agent preparation, and particularly relates to a sand consolidation agent and a preparation method thereof. The sand consolidation agent is composed of component A and component B. The component A is composed of the following raw materials: a diphenyl phenolic epoxy resin, hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene, modified nano calcium zirconate, cage octakis(aminophenyl)silsesquioxane, n-butyl glycidyl ether, KH-550 silane coupling agent, polyether amine, fumed silica and defoaming agent. The component B is composed of the following raw materials: polyborosilazane and 2-ethyl-4-methyl imidazole. The cage octakis(aminophenyl)silsesquioxane in the raw material of the sand consolidation agent strengthens the network structure stability through chemical bonding, the hexakis(4-hydroxymethylphenoxy)cyclotriphosphazene realizes thermal stabilization through chemical bonding and physical dispersion, and the modified nano calcium zirconate provides physical support. The three components synergistically improve the heat resistance of the system.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

The utility model discloses a safe high temperature resistant silica gel cable, comprising an inner support sleeve; the beneficial effects of the utility model are that the insulation performance of the cable and the protection capability of the outermost part are further improved by adopting the cross-linked polyethylene insulation material as the silica gel insulation layer and the polyvinyl chloride material as the wear-resistant layer; by means of the structural design that the reinforcing strips are fixedly connected to the outer side of the inner supporting sleeve at equal intervals and the inner fixing sleeve and the inner supporting column are fixedly connected to the inner side of the inner supporting sleeve, the mechanical strength of the cable is remarkably improved, larger tension, pressure and bending stress can be borne, and the cable has good insulation performance and high-temperature resistance through the arrangement of the silica gel layer and is suitable for being used in the field of communication. And the core wire can be protected from being influenced by high temperature and electromagnetic interference.

The utility model relates to outdoor articles technical field discloses a kind of multi-fuel portable conical outdoor cooking device, including double-layer conical plate one, the double-layer conical plate one includes double-layer conical plate two, the top inner wall of double-layer conical plate two is fixedly connected with two support rods one, the top of two the support rod one is fixedly connected with pot one, the top of pot one is fixedly connected with top cover one. Including single-layer conical plate, the top of single-layer conical plate is fixedly connected with two support rods two, the inside of double-layer conical plate one is provided with alcohol stove, and the inside of single-layer conical plate and double-layer conical plate is provided with alcohol stove. In the utility model, effectively handle the problem that outdoor cooking device exists in use cannot adapt to multiple fuels and combustion is unstable and fuel efficiency is low. The diversity of outdoor cooking experience is improved, and more universal cooking solution is provided for outdoor enthusiasts.

The invention relates to the technical field of brake disc materials, and discloses a brake disc material prepared from a carbon-ceramic composite material and a processing technology thereof.The processing technology comprises the following steps that phenolic resin, carbon powder, metal oxide, composite carbon fibers and a pore forming agent are evenly mixed and then placed in a mold, and a composite material prefabricated body is obtained through compression molding and cold water demolding; processing the composite material preform to form a carbon-ceramic brake disc rough blank, and then performing carbonization treatment to obtain a carbonized composite material; and mixing the carbonized composite material with silicon powder, carrying out siliconizing treatment, soaking in a protective solution, sintering, taking out, polishing and perforating to obtain the brake disc material prepared from the carbon-ceramic composite material. The composite carbon fiber contains a large number of silicon hydroxyl groups and can be tightly combined with phenolic resin, carbon powder, metal oxide and a pore-forming agent, and the polycarbosilane layer generates a nanoscale silicon carbide phase, so that the mechanical property and wear resistance of the brake disc material prepared from the carbon-ceramic composite material can be improved.

The invention discloses a production method of a PA / PE high-barrier composite film bag. The composite film bag comprises an outer layer, a middle layer and an inner layer, the outer layer is prepared from PA6, glass fibers, maleic anhydride grafted polyethylene, an antioxidant, a slipping agent, an ultraviolet light absorber, titanium dioxide, nano silicon dioxide and polyimide; the middle layer is prepared from EVOH (Ethylene Vinyl Alcohol), polyamide-imide, nano montmorillonite, maleic anhydride grafted polypropylene, an antioxidant, a slipping agent, terpene resin, polyvinylidene chloride and polybutylene terephthalate; the inner layer is prepared from HDPE, LLDPE, mPE, an antistatic agent, silicon dioxide, dioctyl phthalate, an antibacterial agent and polylactic acid. The composite film bag prepared by the invention not only has high barrier property and good strength, but also has various functions.

The utility model discloses an efficient and durable municipal waste incineration conveying chain, which relates to the technical field of conveying chains, and comprises outer chain sheets, middle chain sheets, pin shafts, stainless steel wear-resistant sleeves, mounting plates and assembling screw grooves, the outer walls of the middle chain sheets are provided with splicing screw grooves, the outer walls of the mounting plates are provided with splicing screw rods, and the splicing screw rods are connected with the pin shafts. A matching groove is formed in the outer wall of the outer chain piece, an assembling screw groove is formed in the outer wall of the stainless steel wear-resisting sleeve, an operation groove is formed in the outer wall of the middle chain piece, a threaded plate is installed on the inner wall of the operation groove, and an assembling screw is installed on the inner wall of the threaded plate. By installing the performance mechanism, firstly, the stainless steel wear-resisting sleeve is moved into the connecting hole, one end of the assembling screw rod is moved into the assembling screw groove, then one end of the stainless steel wear-resisting sleeve is fixed, and then the other end of the stainless steel wear-resisting sleeve is fixed into the splicing screw groove through the splicing screw rod, so that the high temperature resistance of the chain is improved through the stainless steel wear-resisting sleeve, and the service life of the chain is prolonged. And thermal creep is reduced, and the service life is prolonged.

The utility model provides a centrifuge dehydration barrel device for high water absorbent resin water retention detection relates to experimental equipment auxiliary device technical field. The device includes accommodating component and seal cover, wherein the top opening of accommodating component is detachably connected with seal cover, at least two accommodating cavities are arranged in accommodating component, accommodating component is matched with dehydration barrel on numerical control electric centrifuge, and the whole assembly formed by accommodating component and seal cover can be placed in dehydration barrel. The utility model mainly applies to the experimental scene that needs to carry out spin -dry processing to detection material through numerical control electric centrifuge, can effectively fix material cloth bag and prevent material leakage and splash.

The application relates to the technical field of packaging materials, in particular to a high-strength flame-retardant packaging material and a preparation method thereof. According to weight parts, the packaging material comprises the following raw materials: 70-90 parts of polylactic acid, 6-12 parts of polybutylene adipate terephthalate, 4-15 parts of a flame retardant, 3-7 parts of modified montmorillonite, 3-5 parts of maleic anhydride grafted polypropylene, 0.3-0.5 parts of an antioxidant and 0.5-1 part of a lubricant. The packaging material has excellent flame-retardant performance, bacteriostatic performance, barrier performance and mechanical performance.

The utility model relates to the anti coking lining structure of pyrolysis furnace, including base, still including the furnace body of installing on the upper end of base, and the base is connected through the mounting sleeve rotation, and the both sides of base upper end are provided with support piece, and the left end of base is fixedly installed with fixed top cover through support, and one end of fixed top cover and furnace body is connected, and the other end of furnace body is provided with the airtight cover, and the both sides of airtight cover surface are provided with flue gas pipe and discharge pipe respectively, and the surface of fixed top cover is provided with feed bin door, and the both ends of fixed top cover are all installed with mounting rod, and the surface of mounting rod is located the inside of furnace body and is provided with cleaning scraper, the utility model discloses through servo motor drive the transverse motion of mounting rod, can scrape off coking object in real time, avoid coking layer accumulation, keep the stable heat transfer performance of furnace wall, and reciprocating swing movement, make cleaning coverage wide, cooperate furnace body rotation, realize all -round cleaning at the same time, repeatedly multiple times clean scraping, make the cleaning effect better.

This invention belongs to the field of cable technology, and specifically discloses a curve-heat-rise fire-resistant power cable. The curve-heat-rise fire-resistant power cable includes a sheath layer comprising an outer sheath and an inner sheath arranged sequentially. The inner sheath comprises the following raw materials: methyl vinyl silicone rubber, a refractory composition, silica, tetramethyldivinyldisiloxane, epoxidized soybean oil acrylate, a heat stabilizer, an accelerator, and a diphenylsulfonate. The refractory composition comprises modified ceramic material, sulfonate flame retardant, and polyarylene ether nitrile in a mass ratio of (45~52):(25~38):(17~23). This application uses ceramicized silicone rubber material as the inner sheath and a specific mass ratio of modified ceramic material, sulfonate flame retardant, and polyarylene ether nitrile as the refractory composition, significantly improving the high-temperature resistance, excellent thermal stability, and excellent fire resistance of the power cable, effectively increasing the fire resistance time of the power cable under the temperature rise curve.

The present application relates to the technical field of metallurgical material processing, and particularly relates to a pickling process for avoiding corrosion defects of pickled plates. The pickling process flow is: unwinding, welding, tension leveling, turbulent hydrochloric acid pickling, rinsing, drying, flattening, edge cutting, oiling and coiling. The present application effectively removes the surface iron oxide scale by reasonably matching the tension leveling elongation, acid temperature, concentration and process speed, and avoids the generation of under-pickling and over-pickling conditions. The Cl ‑ <20mg / L in the rinsing water and the atmospheric environment humidity is controlled to be ≤60%RH, the residual acid on the surface of the steel plate and atmospheric corrosion are reduced, the rust-proof oil has good replaceability, moisture and heat resistance, salt spray resistance, high temperature resistance and atmospheric resistance, can make perfect adsorption between the steel matrix and the oil film, and avoid the generation of various corrosion defects such as point, strip and block, and the like from the root, and the surface is smooth and clean without any corrosion and color difference defects.

The utility model discloses an ultra-thin multilayer silica gel braided tube, which relates to the technical field of silica gel braided tubes and comprises a silica gel braided tube body, a connector assembly is arranged at one end of the silica gel braided tube body, a butt joint assembly is arranged at the other end of the silica gel braided tube body, and the connector assembly is matched with the butt joint assembly. The silica gel braided tube body comprises a pipeline body, an anti-sticking layer is arranged on the inner wall of the pipeline body, and the anti-sticking layer is used for preventing adhesion between the inner wall of the silica gel braided tube body and a conveying medium; the butt joint assembly comprises a second connecting cavity tube fixedly connected to one end of the silica gel braided tube body; the connector assembly comprises a first connecting cavity tube fixedly connected to one end of the silica gel braided tube body, and a positioning rod is fixedly connected to one side of the first connecting cavity tube, so that the silica gel braided tube bodies, the connector assembly and the butt joint assembly are matched together, and the two silica gel braided tube bodies can be quickly assembled and disassembled; the working efficiency of the device is improved, and the requirements of more customers are met.

This utility model relates to the field of bearing technology, and in particular to a high-efficiency, high-temperature resistant bearing, comprising an outer ring, an inner ring disposed within the outer ring, and a plurality of rolling elements disposed between the inner and outer rings. A front protective plate is movably connected to the front end of the outer ring, and a rear protective plate is movably connected to the rear end of the outer ring. A ceramic coating is fixedly connected to the rear end of the rear protective plate and the front end of the front protective plate. Four oil injection holes are equidistantly distributed on the outer surface of the outer ring. An extension ring is fixedly connected to the front end of the rear protective plate and the rear end of the front protective plate, and a retaining strip is fixedly connected to the outer surface of each of the two extension rings. This high-efficiency, high-temperature resistant bearing, by having a ceramic coating on both the rear end of the rear protective plate and the front end of the front protective plate, with the front protective plate shielding the front end of the outer ring and the rear protective plate shielding the rear end of the outer ring, and with the ceramic coating acting as a barrier, improves the overall high-temperature resistance of the bearing.

The application discloses a high-temperature-resistant capacitor film resin and a preparation method and application thereof, and belongs to the technical field of capacitor film resins. The high-temperature-resistant capacitor film resin comprising polypropylene homopolymer chains and propylene / 4-methyl-1-pentene copolymer chains is prepared through a segmented in-situ polymerization process, wherein the high content of poly(4-methyl-1-pentene) segments in the propylene / 4-methyl-1-pentene copolymer chains can improve the temperature resistance of the resin, and the polypropylene segments can improve the compatibility of the resin, thereby solving the problems of non-uniformity, phase separation and poor high-temperature resistance existing in the rule blending, and realizing that the capacitor film prepared from the resin has low dielectric loss and high breakdown field strength under the condition of 125 DEG C.

The application discloses a method for preparing polylactic acid by using an organic base-sulfourea dual catalytic system, and comprises the following steps: under the catalysis of the organic base-sulfourea dual catalytic system, ring-opening polymerization of lactide is carried out under the action of an initiator to obtain the polylactic acid; and the sulfourea is disulfourea or trisulfourea. The sulfourea catalyst is easy to synthesize, the organic base-sulfourea dual catalytic system formed by modular combination of the organic base and the sulfourea has a high decomposition temperature, and therefore has good high-temperature resistance, so that the controllable ring-opening polymerization of lactide in a solution can be realized, and the controllable ring-opening polymerization of lactide at high temperature can also be realized; the catalyst used in polymerization is a hydrogen bond bifunctional catalyst, and the controllable polymerization effect that cannot be achieved when only alkali is used for catalysis can be achieved, so that the polylactic acid has a narrow molecular weight distribution; by adjusting the ratio of lactide, the initiator, the organic base and the sulfourea, the catalytic activity can be further regulated, and the polylactic acid with a high molecular weight and a controllable structure can be obtained.

The utility model relates to petroleum exploitation technical field especially is a kind of fracturing quartz sand heat treatment strengthening device, including main part, the top of main part is fixedly connected with conveying assembly, the side of main part is provided with control assembly, and the inside of control assembly is provided with heat treatment assembly;The utility model is in by utilizing the multiple electric heating elements that heating furnace is equipped with, and electric heating element is evenly distributed on the inner wall of heating furnace, to ensure the uniformity of heating, heating furnace carries out heat treatment to fracturing quartz sand, improves its strength and high-temperature resistance, to improve the effect of oil exploitation, temperature sensor can be used for real-time monitoring the temperature in heating furnace, and temperature controller controls the power of electric heating element according to the feedback signal of temperature sensor, to keep the temperature in heating furnace in set range, real-time monitoring and control the temperature in heating furnace, can ensure the stability and uniformity of heat treatment process.

The application discloses anhydrous bubble mud and a preparation method and application thereof. The anhydrous bubble mud comprises the following raw materials in parts by weight: brown corundum 380-490 parts, coke powder 80 parts, silicon carbide 200-230 parts, silicon nitride 88-90 parts, clay 90-95 parts, synthetic resin 18 parts, tar 116-120 parts and additive 67-155 parts. The anhydrous bubble mud has the advantages of high high-temperature resistance, high impact resistance, small dry shrinkage, high stability, fast bonding time, high bonding degree of new and old bubble mud and long service time.

A pressure relief mechanism (10), a box (20), a battery (100) and an electric device. The pressure relief mechanism (10) comprises: a valve body (11) provided with a pressure relief port (111); a valve cover (12) covering the pressure relief port (111), the valve cover (12) is configured to move away from the valve body (11) under pressure to switch from a closed state to a pressure relief state; an airflow blocker (13) is arranged around the pressure relief port (111) and connected to the valve body (11) and the valve cover (12); when the valve cover (12) switches to the pressure relief state, the area around the pressure relief port (111) which is not blocked by the airflow blocker (13) forms an exhaust port (14) in communication with the outside. The guiding effect of the airflow blocker (13) can reduce the risk of high-temperature gas discharged through the pressure relief structure (10) spraying to the wire harness and other vulnerable components around the pressure relief mechanism (10), and improve the safety performance of the battery (100).

This invention discloses a high-temperature resistant flat cable and its manufacturing process, comprising: a flat aluminum alloy busbar, an insulation layer covering the outer surface of the flat aluminum alloy busbar, and a flat aluminum alloy tube covering the outer surface of the insulation layer; the insulation layer is formed by extruding cable material, and the cable material is composed of the following components in parts by weight: 100 parts of polyethylene resin, 1-3 parts of silane crosslinking agent, 0.5-1 parts of glycidyl methacrylate, 0.1-1.5 parts of antioxidant, 0.05-0.2 parts of initiator, 0.2-0.5 parts of tetrabutyl zirconate, and 0.1-0.3 parts of triallyl isocyanurate; the silane crosslinking agent is vinyltrimethoxysilane or vinyltriethoxysilane, and the initiator is at least one of dicumyl peroxide, methyl ethyl ketone peroxide, or benzoyl peroxide. The insulation layer of the high-temperature resistant flat cable of this invention has a breakage elongation change rate of 10~20% after aging at 125℃, and an elongation rate of 30~55% under thermal extension load, thereby improving the high-temperature resistance and service life of the flat cable.