Mould material mixture having improved flowability

Mould material mixture having improved flowability

  • CN 104,923,716 A
  • Filed: 10/30/2008
  • Published: 09/23/2015
  • Est. Priority Date: 10/30/2007
  • Status: Active Application
First Claim
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1. , for the manufacture of a mould material mixture for intermetallic composite coating casting mold, at least comprise:

  • -a kind of fire-resistant base moulding material;

    -a kind of binding agent based on waterglass;

    -a certain proportion of particulate metal oxide, described metal oxide is selected from amorphous silica or aluminium oxide or their mixture;

    It is characterized in that, be added with the surfactant be dissolved in sodium silicate binder in described mould material mixture, wherein said surfactant comprises sulfate, sulfonic group or comprises sulfate and sulfonic group.

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