Refined tungsten bars refer to tungsten bars prepared through a refining process and have the advantages of high purity, high density, high strength, and corrosion resistance.
The preparation process of refined tungsten bars mainly includes the following steps:
1. Raw material preparation: Use high-purity tungsten powder as raw material, and add appropriate amounts of sintering aids and alloy elements.
2. Press molding: Put tungsten powder into the mold and apply pressure to form a tungsten billet of a certain shape.
3. Sintering: Put the tungsten billet into a high-temperature furnace for sintering to make the tungsten powders more closely bonded and improve their strength and hardness.
4. Processing and heat treatment: The sintered tungsten strip needs to be processed and heat treated to obtain the required shape and properties. Quality control and precision control are required during processing and heat treatment to ensure that the quality and performance of the final product meet the requirements.
5. Surface treatment: Surface treatment is performed on the tungsten strip, such as polishing, coating, etc., to improve its corrosion resistance and aesthetics.
Refined tungsten bars have the following advantages:
1. High purity: Refined tungsten bars use high-purity tungsten powder as raw material, which has the characteristics of high purity and low impurities, and is suitable for applications with high purity requirements.
2. High density: Refined tungsten bars have high density and strength, which can provide better weight support and stability.
3. Good electrical conductivity: Refined tungsten bars have good electrical conductivity and are suitable for manufacturing electronic components and circuit boards.
4. Corrosion resistance: Refined tungsten bars have good corrosion resistance to chemicals such as acids, alkalis, and salts, and are suitable for manufacturing components in various high-temperature corrosive environments.
5. High temperature performance: Refined tungsten bars have the characteristics of high melting point and high strength, and are suitable for manufacturing high-temperature equipment such as high-temperature furnaces and light bulb tungsten filaments, as well as high-temperature components and structural parts in aerospace vehicles.
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