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The role and influence of silicon metal in aluminum ingot production

Views: 0     Author: Site Editor     Publish Time: 2023-10-12      Origin: Site

Role of silicon in aluminum ingots

1. Improve the strength and plasticity: silicon can form a solid solution with aluminum, effectively improve the strength and plasticity of aluminum, so that the aluminum ingot has better mechanical properties.

2. Reduce pores and loosening: Silicon can adjust the solidification process of aluminum ingot, so that it solidifies evenly, thus reducing the degree of pores and loosening, and improving the quality of aluminum ingot.

3. Improve chemical stability and corrosion resistance: silicon can form silicon oxide with oxygen, effectively improve the chemical stability and corrosion resistance of aluminum ingot, and prolong its service life to a certain extent.

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Factors influencing silicon in aluminum ingots

1. Silicon content: Silicon content is the key factor that affects the properties of aluminum ingot. Generally speaking, the silicon content in aluminum ingot is between 0.2% and 0.8%, too high or too low will affect the quality of aluminum ingot.

2. Coagulation rate: the faster the solidification rate of aluminum ingot, the higher the solid solution of silicon element, and the silicon content will increase accordingly.

3. Temperature gradient in the solidification process: in the solidification process, the larger the temperature gradient, the distribution of silicon will be more uneven, easy to form pores and loose.

4. Stirring strength: the appropriate stirring strength in the melting process of aluminum ingot, can promote the uniform mixing of silicon elements and aluminum, so as to improve the quality of aluminum ingot.

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