The method of producing silicon metal 441 for aluminum alloys is performed in the following steps:
(1) Add liquid aluminum and aluminum ingots to the furnace;
(2) Add silicon metal 441, first, add silicon metal 441 to the melting furnace for melting, and stir thoroughly and evenly with electromagnetic stirring for half an hour at a temperature of 730~760°C, and then add the intermediate alloy to the melting furnace, and stir thoroughly and evenly with electromagnetic stirring for half an hour again at a temperature of 730~760°C, to ensure that the added raw materials and auxiliaries are completely dissolved, and to make the chemical compositions of AL - Si system casting Aluminium alloy chemical composition meets the requirements;
(3) De-slagging and de-gassing the prepared aluminum melt, and de-gassing is carried out with powder refining agent and nitrogen to obtain aluminum melt with high purity;
(4) Casting.
Some tips for Silicon Metal 441 buyers:
1. Metal silicon has two shapes block and powder. About the particle size, the metal silicon factory can be produced according to the needs of users.
2. Silicon metal 441 the common package is 1Mt/Bag. It can also be packaged according to the user's requirements.
3. Silicon metal 441 the minimum order quantity is 20-25MT (But we also accept LCL).
4. Silicon metal 441 payment term: T/T OR L/C
