Niobium-containing silicon-rich spherical graphite cast iron, preparation of spherical graphite cast iron and piston ring prepared made of spherical graphite cast iron

Niobium-containing silicon-rich spherical graphite cast iron, preparation of spherical graphite cast iron and piston ring prepared made of spherical graphite cast iron

  • CN 102,534,355 A
  • Filed: 01/18/2012
  • Published: 07/04/2012
  • Est. Priority Date: 01/18/2012
  • Status: Active Application
First Claim
Patent Images

1. one kind contains niobium Silicon-rich spheroidal graphite cast iron, by elementary composition below by weight ratio:

  • C;

    2.9-3.4%;

    Si;

    4.3-4.8%;

    Mn;

    0-1.0%;

    P;

    0-0.1%;

    S;

    0-0.06%;

    Cr;

    0-0.2%;

    Cu;

    0-1.0%;

    Nb;

    0-0.6%;

    Mg;

    0-0.1%;

    Ce;

    0.02-0.03%, all the other are Fe.

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