Process for refining and modifying aluminium alloy

Process for refining and modifying aluminium alloy

  • CN 1,305,016 A
  • Filed: 01/04/2001
  • Published: 07/25/2001
  • Est. Priority Date: 01/04/2001
  • Status: Abandoned Application
First Claim
Patent Images

1. process for refining and modifying aluminium alloy mainly may further comprise the steps:

  • A. aluminum alloy melting is become liquid, take off removing dross;

    B. add rare earth composite refining alterant and stir, make the fully fusion in molten aluminium alloy of rare earth composite refining alterant, the add-on of rare earth composite refining alterant is 0.08~

    1.0% of a molten aluminium alloy;

    C. do 15~

    30 minutes blowing stirring with rare gas element;

    D. in 720 ℃



    760 ℃

    temperature ranges, carry out calmness and breed, the molten aluminium alloy that must purify, go bad.

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