Method for preparing remelting aluminium sphere shape casting sand

Method for preparing remelting aluminium sphere shape casting sand

  • CN 1,631,574 A
  • Filed: 06/10/2003
  • Published: 06/29/2005
  • Est. Priority Date: 06/10/2003
  • Status: Active Application
First Claim
Patent Images

1. , the preparation method of re-smelting aluminium ball shape casting sand is to finish through following step:

  • A, with bauxitic ore 1000~

    1400 degrees centigrade of down calcinings 1~

    2 hour;

    B, the bauxitic ore after will calcining or get the calcining bauxite gangue jets under molten condition with electric arc furnaces and are made ball;

    C, the ball of b spray is sieved, get the particle of 0.1~

    2.9 millimeter of its diameter, promptly make re-smelting aluminium ball shape casting sand.

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