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Lightweight heat-insulating refractory castable is a refractory castable with lightweight, high strength, and excellent heat insulation properties. It is mainly composed of lightweight aggregates (such as perlite, vermiculite, etc.), high-temperature stable materials, binders, and additives. Lightweight insulating refractory castables have many advantages, such as low thermal conductivity, low heat capacity, good thermal insulation properties, earthquake resistance, impact resistance, erosion resistance, etc. It is widely used in various high-temperature industrial equipment, such as industrial furnaces, heat treatment furnaces, steel furnaces, glass melting furnaces, etc., to improve the energy efficiency of the equipment and reduce energy consumption. According to the material composition and performance characteristics of lightweight heat-insulating refractory castables, they can be divided into different types, such as perlite lightweight heat-insulating refractory castables, vermiculite lightweight heat-insulating refractory castables, and high-aluminum lightweight heat-insulating refractory castables. Materials etc. Each type of lightweight insulating refractory castable has its unique characteristics and scope of application, and users should choose according to specific circumstances. When using lightweight insulating refractory castables, you need to pay attention to the following points: Mixing ratio: The mixing ratio of lightweight insulating refractory castables should be according to the instructions for use. Different lightweight insulating refractory castables have different mixing ratios,...
Lightweight refractory castable is a castable that is lightweight, fire-resistant, and heat-insulating. It is composed of high-temperature stable materials a certain amount of lightweight aggregates (such as expanded perlite, expanded vermiculite, etc.), and an appropriate amount of binders and additives. The main characteristics of lightweight refractory castables are low density, small thermal conductivity, and good thermal insulation properties. It is lighter, more energy-saving, and more environmentally friendly than traditional refractory materials. Lightweight refractory castables are widely used in the manufacture and maintenance of various industrial furnaces, pipes, chimneys, boilers, and other refractory structures. There are many types of lightweight refractory castables, which can be divided into many types according to different uses. For example, high-aluminum lightweight refractory castables, expanded perlite lightweight refractory castables, high-temperature insulation castables, acid-resistant castables, etc. Each type of castable has its unique characteristics and scope of application, and users should choose according to specific circumstances. When using lightweight refractory castables, it should be noted that the operation must be carried out according to the requirements of the instruction manual, especially the mixing ratio, water addition, etc. need to be accurately controlled. In addition, it is necessary to control the moisture of the castable to avoid cracks...
High-strength high-alumina castable is a refractory castable with aluminate cement as the binding agent and high-aluminum aggregate and micro-powder (such as α-Al2O3 micro-powder, etc.) as the main raw materials. High-strength and high-aluminum castables have high compressive strength, flexural strength, and thermal shock resistance, and can maintain good stability in high-temperature environments. The characteristics of high-strength and high-aluminum castables are as follows: 1. Excellent high-temperature performance: Due to the high refractoriness of high-aluminum aggregate and high-alumina cement, high-strength high-aluminum castables have excellent high-temperature performance and can be used in environments up to 1000°C. 2. High strength: High-strength and high-aluminum castables have high compressive strength and flexural strength and can maintain stable structural performance under various complex working conditions. 3. Good thermal shock resistance: Since the aggregates and micro powder selected in high-strength and high-aluminum castables have low thermal expansion coefficients, they have good thermal shock resistance and are suitable for use in high-temperature equipment. 4. Chemical corrosion resistance: High-strength and high-aluminum castables have good acid resistance, alkali resistance, salt resistance, and corrosion resistance, and are suitable for situations where chemical corrosion may occur in chemical, petroleum, and other industries. 5. Construction performance: High-strength and high-aluminum castables have good construction performance and...
Preparation process of wear-resistant and refractory castables: Ingredients: Select appropriate refractory aggregates, powders, additives, and binders according to the required properties, and proportion them in a certain proportion. Mixing: Mix the prepared ingredients to ensure that the various ingredients are evenly distributed. Pouring: Pour the mixed castable into the prepared mold and vibrate or compact it to ensure that the castable fills the mold and expels air bubbles. Hardening: Place the poured refractory castable in an appropriate environment for hardening. Hardening times and temperatures will vary depending on the specific bond. Demoulding: After waiting for the refractory castable to harden, demould it from the mold. At this time, the refractory castable has been initially formed. Drying and Curing: The castables after demoulding need to be dried and cured. This process usually requires placing it in a constant temperature and humidity environment so that it gradually loses moisture and increases strength. The length of drying and curing time depends on the specific binder and environmental conditions. Heat Treatment: To make the refractory castable have better high-temperature resistance, it needs to be heat treated. This usually involves heating and holding at a certain temperature. The heat treatment temperature and time will vary...
Wear-resistant refractory castable is an amorphous material widely used in metallurgy, petrochemicals, building materials, electric power, and other industries. This material has the advantages of high-temperature resistance, wear resistance, and corrosion resistance. It is used to repair and protect the lining of high-temperature equipment such as furnaces and boilers to increase the service life of the equipment. The main components of wear-resistant refractory castables include refractory aggregates, powders, additives, and binders. Wear-resistant refractory castables are widely used in the manufacturing and maintenance of various high-temperature industrial equipment, such as steel, non-ferrous metals, chemicals, petroleum, electric power, ceramics, and other fields. Specific application scenarios include: 1. Maintenance and protection of the lining, furnace mouth, hearth, and other parts of metallurgical furnaces such as blast furnaces, converters, and electric furnaces. 2. Refractory lining for high-temperature equipment such as gasifiers, circulating fluidized bed boilers, and waste incinerators. 3. Wear-resistant and fire-resistant protection for chemical equipment such as petrochemical reactors, cracking furnaces, and hydrogenation units. 4. Refractory lining for high-temperature building materials equipment such as glass furnaces and ceramic kilns. 5. Fire protection for power generation equipment such as thermal power plant boilers, thermal power plants, etc. 6. Wear-resistant and refractory castables have good...
The composition of fire-resistant and wear-resistant plastics is similar to other amorphous refractory materials. It is composed of refractory aggregates and powders, binders, and plasticizers. Special admixtures can be added according to different use requirements. There are many types of fire-resistant and wear-resistant plastics. According to the binding agent, they are clay-bonded plastics, phosphate-bonded plastics, aluminum sulfate-bonded plastics, tar-asphalt or resin-bonded plastics, etc.; according to the materials, they are silicone, clay, high alumina, corundum, zircon, carbon or silicon carbide, magnesia, and magnesium chromium, etc. Commonly used refractory plastics are mainly aluminum silicate (clay or high alumina) plastics. Fire-resistant and wear-resistant plastics have good medium and high-temperature bonding strength, good wear and thermal shock resistance, and are resistant to peeling. Fire-resistant and wear-resistant plastics are widely used in industrial kilns in the metallurgy, petrochemical, electric power, and machinery industries. They are mainly used as thermal shock-resistant, erosion-resistant, and wear-resistant linings; such as burners for heating furnaces and cement rotary kilns. The discharge port, the feed port of the vertical kiln, the lining of the high-temperature cyclone separator, the roof and furnace wall lining of the steel rolling heating furnace, and can also be used as the lining of various heat treatment...
The demand for refractory materials continues to grow in industry and construction. Wear-resistant and fire-resistant plastic, as a new type of refractory material, has gradually become an ideal choice in many fields with its unique properties and excellent wear-resistant and fire-resistant properties. Xinhongji Refractory will introduce in detail the performance and application of wear-resistant and refractory plastics. Wear-resistant and refractory plastic has the following properties: 1. High wear resistance: Refractory plastic contains special wear-resistant ingredients in its composition, allowing the material to maintain good wear resistance at high temperatures. This makes it highly practical in environments with high temperatures, high pressure, and severe wear. 2. Excellent fire resistance: This material has good fire resistance and can withstand extremely high temperatures (usually above 1000°C). In the event of fire or other high-temperature conditions, wear-resistant and fire-resistant plastics can effectively prevent the spread of fire and protect equipment and building structures. 3. Good plasticity: Compared with other refractory materials, wear-resistant refractory plastics have better plasticity and can be easily molded into various shapes and sizes to adapt to the application needs of different scenarios. 4. Low thermal conductivity: Wear-resistant and refractory plastics have low thermal conductivity, which can effectively slow down the...
High-temperature ceramic wear-resistant castable is a castable made of high-temperature ceramic particles and wear-resistant materials mixed through a special process. Its main feature is that it has extremely high wear resistance and high temperature resistance, and is suitable for use in high temperature and heavy load conditions. The following is an introduction to high-temperature ceramic wear-resistant castables: Composition High-temperature ceramic wear-resistant castables mainly comprise high-temperature ceramic particles, wear-resistant materials, binders, and other ingredients. Among them, high-temperature ceramic particles are a kind of high-temperature ceramic material, mainly composed of alumina, zirconia, yttria, and other materials, which have excellent high-temperature wear resistance. Wear-resistant materials are added to improve the wear resistance of the castables, and materials such as silicon carbide and boron carbide are usually used. Binders are added to improve the adhesion and plasticity of castables, and materials such as aluminum silicate are generally used. Performance Characteristics 1. High-temperature resistance: High-temperature ceramic particles have extremely high-temperature stability and can maintain stable performance in high-temperature environments. The use temperature of wear-resistant castables is generally above 1500°C. 2. Wear resistance: The mixture of high-temperature ceramic particles and wear-resistant materials can greatly improve the wear resistance of the castable, making it have excellent wear...
High-temperature-resistant cement, as the name suggests, is a special cement that performs well in high-temperature environments. It has high compressive strength, heat resistance, chemical corrosion resistance, and low thermal expansion coefficient. It is suitable for engineering projects in harsh environments such as slag, high-temperature gas, and chemical corrosive substances. High-temperature resistant cement is mainly used in high-temperature industrial fields such as metallurgy, petrochemicals, and electric power, as well as in the construction and maintenance of high-temperature facilities such as furnaces, chimneys, smelting furnaces, and chemical equipment. (High-temperature resistant cement also becomes aluminate cement, refractory cement, and high alumina cement) The main features of high-temperature resistant cement are as follows: 1. High-temperature resistance: The sintering temperature of high-temperature resistant cement is as high as 1300-1600 degrees Celsius, which can maintain stable performance in a long-term high-temperature environment and is suitable for various high-temperature facilities and equipment. 2. High compressive strength: High temperature-resistant cement has high compressive strength and can withstand large mechanical loads, making it suitable for high-strength and high-pressure engineering applications. 3. Good chemical corrosion resistance: High-temperature-resistant cement has good corrosion resistance against various chemical media such as acids, alkalis, and salts, and can maintain a long service life in...
Aluminous Cement, also known as high alumina cement or calcined aluminate cement, is a special refractory cement made from ores (such as kaolin, bauxite, gangue, etc.) and calcined at high temperatures. The main component of aluminate cement is calcium aluminate (CA), which has a high aluminum oxide (Al2O3) content, usually between 40% and 70%. Aluminate cement has the following characteristics 1. Shorter initial and final setting times: Compared with ordinary Portland cement, aluminate cement sets faster and can reach a certain strength in a short time, which is beneficial to shorten the construction period. 2. Suprior high-temperature performance: Aluminate cement has high fire and heat resistance, and can maintain stability and mechanical properties in high-temperature environments. Therefore, it is often used in refractory materials and high-temperature equipment. 3. Chemical corrosion resistance: Aluminate cement has good acid resistance, alkali resistance, salt-resistance, and corrosion resistance, and is suitable for use in chemical, petroleum, and other industries where chemical corrosion may occur. 4. Thermal shock resistance: Since aluminate cement has a low thermal expansion coefficient, it can better resist thermal stress when temperature changes and has strong thermal shock resistance. 5. Anti-permeability: Aluminate cement has good anti-permeability, which can effectively prevent the penetration...
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