A kind of high-toughness heat-resistant vermicular cast iron automobile brake drum and preparation method thereof

A kind of high-toughness heat-resistant vermicular cast iron automobile brake drum and preparation method thereof

  • CN 106,868,397 A
  • Filed: 04/01/2017
  • Published: 06/20/2017
  • Est. Priority Date: 04/01/2017
  • Status: Active Application
First Claim
Patent Images

1. a kind of high-toughness heat-resistant vermicular cast iron automobile brake drum, it is characterised in that by following percentage by weight into being grouped into:

  • C:

    3.2-3.6%、

    Si:

    3-3.5%、

    Mn:

    0.3-0.5%、

    Pb:

    0.2-0.4%、

    Cr;

    0.25-0.35%、

    TC:

    0.01-0.03%、

    Bi:

    0.003-0.005%、

    Nb:

    0.02-0.04%、

    Tb;

    0.4-0.6%、

    V:

    0.3-0.5%、

    P:

    0.01-0.02%、

    S:

    0.01-0.02%,Remaining is Fe.

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