High-temperature asphalt is a special asphalt with a high softening point and good high-temperature stability. It is mainly extracted from coal tar through a series of chemical reactions at high temperatures, and has unique physical and chemical properties. High-temperature asphalt is widely used in industrial and environmental fields, such as building insulation, anti-corrosion and waterproofing, oil exploitation, etc.
Features of high-temperature asphalt:
1. High softening point: The softening point of high-temperature asphalt is usually around 180-190, much higher than that of ordinary asphalt.
2. Good high-temperature stability: In a high-temperature environment, high-temperature asphalt can maintain good performance and is not easy to soften and burn out.
3. Oxidation resistance and weather resistance: High temperature asphalt has good oxidation resistance and weather resistance, and can be used for a long time under harsh environmental conditions.
4. Good permeability: high-temperature asphalt has good permeability, which can easily penetrate into the pores of refractory materials and form a strong cohesion.
5. Environmental performance: In the process of production and use, high-temperature asphalt has less pollution to the environment, which is in line with the development trend of green environmental protection.
Application areas of high-temperature asphalt:
1. Building insulation: high-temperature asphalt can be used to make insulation materials, which has excellent thermal insulation performance and durability.
2. Anti-corrosion and waterproof: High-temperature asphalt can resist chemical corrosion and oxygen penetration, and improve the durability of the facility.
Oil extraction: High-temperature bitumen can be used to increase well production and reduce extraction costs.
4. Refractories: High-temperature asphalt can play an important role in the production of refractories, improving the structural stability, thermal conductivity, and corrosion resistance of refractories.
5 Casting and solid lubricating materials: High temperature asphalt can be used in the foundry industry to improve the quality and performance of castings. In addition, it can be used as a solid lubricating material with good lubricating properties in high-temperature environments.
6. Carburizer: High-temperature asphalt can be used as a carburizer in the steel smelting industry to improve the carbon content of molten steel.
In short, high-temperature asphalt, as a special asphalt, has a wide range of application prospects. In the industrial and environmental fields, high-temperature asphalt provides excellent performance and protection for a wide range of materials and equipment. With the continuous progress of science and technology, the application scope and influence of high-temperature asphalt will be further expanded.