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Ceiling materials generally include gypsum board, mineral wool sound-absorbing board, metal products, wood boards, and glass. PVC plastic.
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The polyethersulfone sheet we make can reach a working temperature of 180 degrees and is insulated.
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310S stainless steel belongs to the 25Cr-20Ni series of high-alloy stainless steel, with excellent high temperature oxidation resistance, suitable for making various furnace components, the maximum temperature is 1200, and the continuous use temperature is 1150. Uses: materials for furnaces, materials for automobile purification devices.
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Summary. Hello, after inquiry, the materials that can withstand high temperatures of 2000 degrees belong to the high-temperature insulation materials: calcium silicate tube shell, aluminum silicate cotton felt, glass surface, diatomaceous earth, expanded vermiculite, foamed cement, etc.
The first three of these are the most common, especially the aluminum silicate cotton felt, which can withstand high temperatures of 650 °C.
Materials that can withstand high temperatures of 2000 degrees, which belong to high-temperature insulation materials.
Hello, after inquiry, the materials that can withstand high temperatures of 2000 degrees belong to the high-temperature insulation materials: calcium silicate tube shell, aluminum silicate cotton felt, glass surface, diatomaceous earth, expanded vermiculite, foamed cement, etc. The first three of these are the most common, especially the aluminum silicate cotton felt, which can withstand high temperatures of 650 °C.
1) Rock wool board: thermal conductivity fireproof, flame retardant, high temperature absorption, poor thermal insulation effect. (2), glass wool:
The construction is simple and can be cut at will. Antibacterial and mildew-proof, anti-aging, anti-corrosion, to ensure a healthy environment. Low moisture absorption and stable physical properties.
3) Expanded polystyrene board (EPS board): thermal conductivity: good thermal insulation effect, cheap and poor strength.
4) Extruded polystyrene board (XPS board): thermal conductivity: better thermal insulation effect, high strength, moisture resistance, expensive and the surface needs to be treated during construction.
5) Rubber powder polystyrene particle insulation slurry: thermal conductivity: good flame retardancy, disposable, unsatisfactory insulation effect, high requirements for construction.
6) Polyurethane foam material: thermal conductivity: good waterproofness, good thermal insulation effect, high strength, strong integrity, poor fire performance, and more expensive.
7) Rigid polyurethane board: thermal conductivity: low thermal conductivity and good thermal performance.
When the bulk density of rigid polyurethane is 35 40kg m3, it is equivalent to about half of EPS, and it is the lowest thermal conductivity of all insulation materials at present. (8) Perlite and other slurries: thermal conductivity:
Good fire resistance, high temperature resistance, poor thermal insulation effect, high water absorption.
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Summary. Kiss! Hardness, as the name suggests, is the ability of a material to resist deformation or damage, and is one of the most commonly used indicators in the heat treatment industry.
It has no exact physical significance, it is a comprehensive index of mechanical properties, generally speaking, the higher the hardness of the material, the higher the tensile strength, and the better the wear resistance.
What is Hardness? Why does an insulating material have a certain hardness and strength?
Kiss! Hardness, as the name suggests, is the ability of Xiaoshan imitation materials to resist deformation or damage, and is one of the most commonly used indicators in the heat treatment industry. Generally speaking, the higher the hardness of the material, the higher the tensile strength and the better the wear resistance.
Kiss! The reason why the insulating material has a certain hardness and strength is that the function of the insulating material is mainly to isolate the live parts with different potentials in the electrical equipment.
Therefore, the insulating material should first have high insulation resistance, tung infiltration car and voltage strength, and can avoid accidents such as local leakage and breakdown.
Kiss! The higher the voltage applied at both ends of the insulator, the greater the electric field force on the charge in the material, and the more likely it is to have ionization collisions, resulting in the breakdown of the imitation pin insulator. The low voltage that causes the insulator to break down is called the breakdown voltage of the insulator.
When a 1 mm thick insulating material breaks down, the number of kilovolts of voltage that needs to be added to the ridge is called the insulation voltage strength of the insulating material, referred to as dielectric strength. Because the insulating materials have a certain dielectric strength, all kinds of electrical equipment, all kinds of appliances (electrician's pliers, electrical inspection preparation pens, insulating gloves, insulating rods, etc.), all kinds of electrical materials, the manufacturer has stipulated a certain allowable voltage, called the rated voltage. The voltage it bears when using it must not exceed its rated voltage value to avoid accidents.
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Hello, that's because the current is too large and if the hardness and strength are not reached, it will be broken down. A material in electrical equipment that isolates the charged body from other parts. Commonly used solid materials are insulating paper, laminates, erasers, plastics, paints, glass, ceramics, mica, etc. Commonly used liquid materials are transformer oil, etc.
In gaseous materials, air, nitrogen, sulfur hexafluoride and so on are used more. Insulating material: The material composed of a substance with a resistivity of 109 1022 cm is called an insulating material, also known as a dielectric in electrotechnical peitan.
Simply put, it is a material that isolates a charged body from other parts. The insulating material has a very large resistance to the DC current, under the action of the DC voltage, except for a very small surface leakage current, it is actually almost non-conductive, and for the AC current, there is a capacitive current passing through, but it is also considered to be non-conductive. The greater the resistivity of the insulating material, the better the insulating properties.
Insulating material A material used to isolate conductive parts of different potentials. Its electrical conductivity is about 10-10 meters or less. In different electrical products, according to the needs, insulating materials often also play the role of energy storage with abrasion, heat dissipation, cooling, arc extinguishing, moisture-proof, mildew-proof, anti-corrosion, anti-radiation, mechanical support and fixation, and protection of conductors.
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If it is a high temperature of 200 to 300 degrees, the polymer material can be satisfied, and if it is a high temperature of more than 600 degrees, the ceramic material can be satisfied.
Materials are mainly divided into three categories, metals, polymers, ceramics, the most high-temperature resistant are ceramics, metals are electrically conductive, polymers are divided into conductive polymers and insulating polymers.
High-temperature resistant materials include refractory and heat-resistant materials, inorganic compounds, and polymer materials. Refractory materials usually refer to inorganic materials that can withstand temperatures above 1580. They are used to build kilns, combustion chambers, and other building materials that need to withstand high temperatures.
It is generally made of quartz sand, clay, magnesite, dolomite, etc., such as refractory cement, magnesia brick, etc. Broadly speaking, inorganic refractory and heat-resistant materials refer to these compounds with high hardness, good brittleness, good chemical corrosion resistance, and a melting point of more than 1500. Such as boron carbide, silicon carbide, boron nitride, silicon nitride, boron phosphide, silicon phosphide, etc.
It can be used as high-temperature refractory materials (such as abrasives, casting molds, nozzles, high-temperature thermowells), heat-resistant materials (such as rocket structural elements, nuclear engineering materials, electric heating elements), in addition to being used as chemical-resistant materials and hard materials. Heat-resistant polymers can be used as high-temperature film insulating materials, high-temperature resistant fibers, high-temperature resistant coatings, high-temperature resistant adhesives, etc. According to the time of high temperature resistance, it is divided into instantaneous high-temperature resistant materials and long-term high-temperature resistant materials.
The former can last from a few seconds to a few minutes at 1000 10000. Among them, the ablative material is also a high-temperature resistant material. For example, at 300 600, it can maintain its mechanical strength, chemical resistance, etc. in the air.
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This should be ceramic, and only this material can meet these conditions.
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