In the cemented carbide manufacturing process, several factors may affect the quality of the product. Here are some of the main factors:
- Material preparation: Cemented carbide is made by mixing, pressing and sintering metal powders such as tungsten and cobalt with other additives. The proportion of tungsten and cobalt, the type and proportion of additives, and the particle size of the powder have a great impact. At the same time, the material preparation process may also be affected by factors such as raw material quality, mixing uniformity, and preparation temperature.
- Sintering process: Sintering is a very important step in the cemented carbide manufacturing process. The control of the sintering process has a great impact on the performance and quality of cemented carbide products. For example, adjustments to parameters such as temperature, holding time, and pressure during the sintering process will have an impact on the particle structure, hardness, wear resistance and other properties of cemented carbide.
- Powder particle size: The powder particle size of cemented carbide will affect its sintering performance and the physical properties of the final product. Finer powder is beneficial to improving the density and hardness of the alloy, while coarser powder may lead to an increase in product porosity and a decrease in wear resistance.
- Additives: Additives added during the preparation process may affect the melting point, wettability, grain growth, etc. of the alloy, thereby affecting its sintering effect and the performance of the final product.
- Impurities and contamination: Impurities and contaminants in the alloy may affect its performance, such as reducing hardness, wear resistance, increasing porosity, etc. Therefore, cleanliness and quality control during preparation are crucial.
- Equipment factors: The quality and accuracy of manufacturing equipment and process equipment may also affect the quality of cemented carbide products. For example, the accuracy and stability of press molding equipment may affect the geometric and dimensional accuracy of the product.
Therefore, during the cemented carbide manufacturing process, these factors need to be comprehensively controlled and managed to ensure the quality of the final product.
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