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发表于 2010-11-10 14:56:48
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来自： 中国江苏常州
本帖最后由 wenjuanzhi2008 于 2010-11-10 15:00 编辑 3 S) K' G+ T& ]4 k# d, Z" a: J- a+ d
& }, s) V6 @: N, c1 T5 N! ^HC:High Carbon Cast Iron; Cu,Cr is the mainly alloy element.2 E! I. T. |# D$ J+ D
The material in the German literature GG15HC sign, in English is GIHC (Gray Iron High Carbon). 9 _1 h8 q" f0 o `3 A
GG-15HC: A wide range of cast iron is produced from the HC-type cast iron used in the manufacture of brake discs, because of its favorable effect of alloying on the texture and very good resistance to abrasion. ! p8 F( c, A$ O- S, M& e% w& E
The cast-iron texture: Graphite (%) 12.5, Graphite shape IA3, Perlite (%) 99, Ferrite (%) <1;
" O% K# [; C y; Q. MChemical composition: C 3.73, Si 2.07, Mn 0.78, P 0.058, S 0.085, Ti 0.014, Cu 0.56, Cr 0.27, Sn 0.039.
, `, I# O* G( b! }Mechnical property:Hardness: 180 ± 5 HB, Tensile strength:240 MPa. 6 ]8 F. m7 m" m+ X
The cast GG15HC marked characteristics:
* K2 }$ ~9 b$ e* n. |) n4 c- High thermal conductivity,
; g- I0 w0 ~! B0 @5 s- Low thermal stresses,
1 _; K, K5 }& u; g% Y" F, K! a- High resistance against cracking due to heat generated,
) E6 }# u6 `( o0 A- Good shock absorption properties. |
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