31results about How to "Excellent resistance to alternating cold and heat" patented technology

The invention discloses a sealant for electrical apparatus insulation. The sealant for electrical apparatus insulation is prepared from, by weight, 50-60 parts of bisphenol A epoxy resin, 30-35 parts of water-soluble phenolic resin, 30-35 parts of natural rubber, 5-8 parts of methyl trichlorosilane, 3-8 parts of dimethyl dichlorosilane, 1-3 parts of dioctyl phthalate, 5-10 parts of rosin pentaerythritol ester, 3-6 parts of vinyl acetate, 5-9 parts of quartz powder, 4-8 parts of calcium carbonate, 2-5 parts of silica, 5-10 parts of manganese dioxide and 12-13 parts of carbon black. The sealant has excellent cold-hot alternating resistance performance, aging resistance performance and electrical insulation performance, can have the sealing and adhering effects on electronic components and parts and does not produce pollution to the surroundings.

The invention provides a high-temperature-resistant radiation-proof coating, which comprises the following raw materials in parts by weight: 10-15 parts of zirconium sol, 6-10 parts of aluminum dihydrogen phosphate, 8-12 parts of expanded graphite, and 5-10 parts of carbon nanotubes , 1-5 parts of titanium dioxide, 5-10 parts of glass powder, 5-10 parts of talc powder, 20-25 parts of mica powder, 0.5-3 parts of hydroxypropyl methylcellulose, dicyclopentenyloxyethyl acrylate 1 to 5 parts and 20 to 30 parts of water. The present invention also provides a preparation method of the above-mentioned high temperature resistant radiation protection coating. The components in the above-mentioned high-temperature-resistant and radiation-resistant coating provided by the present invention cooperate with each other and complement each other, so that the coating has excellent anti-corrosion, radiation protection, antibacterial, flame-retardant, and high-temperature resistance under the premise of maintaining good adhesion. , anti-cracking, storage stability and other characteristics.

The invention belongs to the technical field of circuit boards and discloses a high-thermal-conductivity metal-based double-sided copper-based copper-clad plate. The high-thermal-conductivity metal-based double-sided copper-based copper-clad plate comprises a metal copper plate, protective film layers, heat conduction layers and copper foil layers; the metal copper plate is arranged in the middle;the copper foil layers are fixedly mounted at the top and bottom of the metal copper plate; and the heat conduction layers are fixedly mounted at the top and bottom of the copper foil layers. According to the high-thermal-conductivity metal-based double-sided copper-based copper-clad plate and the preparation process thereof of the invention, a heat conduction adhesive is additionally adopted, and the heat conduction adhesive has excellent cold and hot alternating resistance, aging resistance and electric insulation performance; the heat conduction layers are adopted, and the heat conductionlayers have small thermal resistance, excellent viscoelastic properties and thermal aging resistance and can bear mechanical and thermal stress; since the heat conduction adhesive and the heat conduction layers are adopted, the thermal conductivity of the metal-based double-sided copper-based copper-clad plate can be greatly improved, the heat of an electronic device can be dissipated quickly whenthe metal-based double-sided copper-clad plate is used together with the electronic device; and therefore, the popularization of the metal-based double-sided copper-based copper-clad plate is benefited.

The invention provides a high-temperature-resistant anti-corrosion and anti-radiation coating. The coating comprises the following raw materials in parts by weight: 8-12 parts of aluminum sol, 10-15 parts of expanded graphite, 5-10 parts of carbon nano tube, 1-5 parts of titanium dioxide, 0.5-3 parts of hydroxypropyl methyl cellulose, 8-14 parts of glass powder, 5-10 parts of talcum powder, 20-25 parts of mica powder, 1-5 parts of methacrylic acid dicyclopentenyl-oxy-ethyl ester and 20-30 parts of water. The invention further provides a preparation method of the high-temperature-resistant anti-corrosion and anti-radiation coating. The components in the coating are mutually matched to complement the advantages each other, so that the coating has the properties of excellent corrosion resistance, radiation corrosion resistance, antibacterial property, flame retardance, high temperature resistance, cracking resistance, storage stability and the like on the premise that the adhesive force is remained.

The invention discloses an electrical appliance insulation sealant which is prepared from the following raw materials in parts by weight: 50-60 parts of bisphenol A type epoxy resin, 30-35 parts of water soluble phenolic resin, 30-35 parts of natural rubber, 5-8 parts of methyltrichlorosilane, 3-8 parts of dichlorodimethylsilane, 1-3 parts of dioctyl phthalate, 5-10 parts of pentaerythritol ester of rosin and the like. Meanwhile, the electrical appliance insulation sealant is also prepared from a mixture of sodium bicarbonate particles and carbon powder, wherein the particle size of the mixture is smaller than 0.1mm. When being just filled into a position to be sealed, the sealant is heated to 50 DEG C or above by hot air blown from an air blower, and heating is stopped after continuing for 30s. The invention provides a novel sealant with good heat dissipation function.

The invention discloses a cylindrical lithium battery. The cylindrical lithium battery comprises a battery cell, a cylindrical inner housing, a housing, a positive terminal and a negative terminal, wherein the battery cover is packaged in the inner housing; the housing covers the inner housing; the positive terminal and the negative terminal are positioned on middle positions of upper and lower end surfaces of the housing respectively, and a cover plate is arranged on the upper end surface of the housing; a glue injection opening A is formed in the cover plate; a glue injection opening B is formed in a position, corresponding to the glue injection opening A, in the lower end surface of the housing; high heat-conduction electronic silica gel is filled between the inner housing and the housing. According to the cylindrical lithium battery disclosed by the invention, the high heat-conduction electronic silica gel can enable the cylindrical lithium ion battery to conduct heat produced by the battery cell into the environment more quickly and uniformly, the sealing performance and the vibration resistance of the housing are effectively improved; the high heat-conduction electronic silica gel belongs to room-temperature curing organic silicon rubber, has excellent electrical performance, ageing resistance, cold and hot alternating resistance, moisture resistance, non-swelling performance, vibration resistance and water resistance, so that the safety coefficient of the lithium battery in the using process can be increased.

The invention discloses a high-waterproof LED (Light Emitting Diode) lamp tube plug which comprises an outer plug base and an inner plug base, and is characterized in that the outer plug base comprises a copper hollow insert, a carrying lug boss and a T-shaped wire, wherein the copper hollow insert is arranged at the front end of the outer plug base and is used for containing a standard contact pin; the carrying lug boss is buckled with the inner plug base; the T-shaped wire is arranged on one side of the carrying lug boss; an external bulge used for buckling the outer plug base with the inner plug base is arranged at the lower end of the carrying lug boss; a waterproof layer is arranged on the outer side at the lower end of the carrying lug boss; a waterproof groove matched with the waterproof layer is formed in an inner wall of the inner plug base. According to the high-waterproof LED lamp tube plug, the waterproof layer is arranged at a cross of the outer plug base and the inner plug base, so that the waterproof property is excellent, the short circuit of the lamp tube plug caused by air humidity is prevented, and the high-waterproof LED lamp tube plug has the advantages of simple structure, excellent waterproof property, and the like.

The invention discloses an anti-spalling primer, comprising the following components by weight: 45-55% of modified thermoplastic acrylic resin, 10-15% of hexamethylated amino resin, 20-25% of a pigment, 6-15% of an auxiliary agent and the balance of a solvent. The product provided by the invention has good boiling resistance and thermal alternation resistance, and is superior to an existing product in the indexes such as pencil hardness, adhesion, impact strength and water resistance.

The invention discloses a system and a method for monitoring the temperature of a cylindrical lithium ion battery, belonging to the field of lithium batteries. A system and method for monitoring the temperature of a cylindrical lithium-ion battery, including a lithium-ion battery body and a control module, a comparison module, a temperature detection module, a temperature control module, and an alarm module disposed in the lithium-ion battery body, the lithium-ion battery body includes The battery steel shell and the winding core fixed in the battery steel shell, the comparison module, the temperature detection module, the temperature control module and the alarm module are all connected to the control module signal, and the comparison module is used to compare the lithium-ion battery body displayed by the temperature detection module External and internal temperature difference information, the temperature detection module is used to detect the internal temperature and external temperature of the lithium-ion battery body, which can realize real-time monitoring and accurate measurement of the internal and external temperature of the battery during the charging and discharging process of the battery, and improve the quality of the lithium-ion battery. safety of use.

The invention relates to a preparation method of a safe high-thermal-conductivity floor heating material and belongs to the technical field of building materials. According to the invention, a layer of metal aluminum with good thermal conductivity is sputtered on the surface of carbon fiber by mutual vibration and friction of a large amount of carbon fiber molecules under movable vibration of an electric field by electric power, so that the heat conductivity of the carbon fiber can be improved; the surface of the composite carbon fiber is coated with a layer of silica gel material, and then carbonized, so that the composite carbon fiber has excellent moisture-proof, aseismic, corona-resistant, leakage-resistant and chemical medium-resistant properties, and has good thermal conductivity; bauxite, cordierite and kaolin are taken as main raw materials to prepare the safe high-thermal-conductivity floor heating material, the cordierite has a low thermal expansion coefficient, high chemicalstability, excellent thermal shock resistance and certain mechanical strength, and the main component in the bauxite is aluminum oxide, and the prepared floor heating material has the advantages of being high in mechanical strength, high in electrical resistivity, good in electrical insulation property and high in melting point.

The invention relates to high-firmness epoxy paint. The high-firmness epoxy paint comprise the following components in a formula by weight percent: 28.27-32.46% of modified epoxy resin, 15.12-17.21% of modified amine hardener, 32.58-29.45% of pigment, 3.12%-4.08% of flexibilizer, 2.36-1.88% of anti-settling agent and 18.55%-14.92% of solvent. The high-firmness epoxy pain solves the problems that the existing thick anticorrosive paint film on a sewer line and a sewage conduit has poor adhesive force, hot water resistance and hot and cold alternation resistance.

The invention relates to a coating, in particular to an anti-corrosion and anti-radiation coating for nuclear power. The anti-corrosion and anti-radiation coating is characterized by comprising the following raw materials in parts by weight: 10-15 parts of titanium dioxide, 7-9 parts of calcium carbonate, 6-8 parts of potassium titanate crystals, 3-5 parts of talcum powder, 3-4 parts of carbon nano tubes, 12-14 parts of kaolin powder, 1-5 parts of expanded graphite, 7-9 parts of glass powder, 0.5-1.5 parts of hydroxypropyl methyl cellulose, 2-4 parts of triethanolamine, 11-14 parts of wollastonite powder and 15-35 parts of water. The coating has excellent characteristics of corrosion resistance, radiation resistance, high-temperature tolerance, crack prevention, cold-hot alternation resistance, storage stability and the like on the premise that good adhesion force is kept.

The invention provides an ultra-thin and super-conductive integral panel radiator, production equipment and technology, and relates to the technical field of heating equipment. The radiator includes: two D-shaped header pipes, several square heat dissipation pipes, and integral stamping and forming The outer cover; the two D-shaped header pipes are arranged in parallel, the end of one D-shaped header pipe is used to connect the water inlet pipe, and the end of the other D-shaped header pipe is used to connect the water outlet pipe; the square The radiating pipe is arranged perpendicular to the D-type header pipe, and its two ends are respectively connected with the plane side walls of the two D-type header pipes, and several of the above-mentioned pipes are evenly spaced along the extending direction of the D-type header pipe. Square heat dissipation pipe; the outer cover is covered on the periphery of the main body of the radiator composed of D-shaped header pipe and square heat dissipation pipe, and the contact surface is coated with thermal conductive glue. This type of radiator has a more reasonable structure and process, a simple and elegant appearance, takes up less space, and has a better heat dissipation effect than similar products.

The invention discloses a reinforced seamless steel pipe perforated plug, comprising a plug base, a transition layer and a strengthening layer are sequentially arranged on the outer surface of the plug base from the inside to the outside, and the transition layer includes the following components in parts by weight: iron : 61.0-79.0%; Co: 5.0-10.0%; Chromium: 10.0-15.0%; Mo: 5.0-10.0%; Nickel: 1.0-4.0%; The additive with a fraction of 4% is composed of two parts, and the main material includes the following components by weight: cobalt: 20.0-30.0%; nickel: 20.0-30.0%; chromium: 15.0-20.0%; niobium: 5.0-5.5% ; silicon: 1.0-2.5%; tungsten: 1.0-2.0%; carbon: 1.0-1.8%; boron: 3.5-5.0%; rare earth: 0.5-0.9%; iron: 2.3-30.7%, the present invention has good strength and In addition to the hardness, it also has high temperature resistance, which can also reduce the friction between the plug and the steel pipe, and improve the quality of the inner wall of the steel pipe, thereby reducing the workload of the subsequent processing of the steel pipe, which is also conducive to reducing the sticking of steel on the surface of the plug, and also reduces the workmanship. workload.