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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
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' N6 F. y" ]4 e: T9 fHC:High Carbon Cast Iron; Cu,Cr is the mainly alloy element.8 B. w' W2 o$ R/ ~- e( Q& D$ _* x
The material in the German literature GG15HC sign, in English is GIHC (Gray Iron High Carbon).
6 M$ q4 A2 l& ^ \3 \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.
- U* `3 {1 R4 D4 ]# f. rThe cast-iron texture: Graphite (%) 12.5, Graphite shape IA3, Perlite (%) 99, Ferrite (%) <1;4 s1 t9 Z" ~) O0 A) j8 L6 S" t. O3 R q
Chemical 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.) i2 R; l8 q! d
Mechnical property:Hardness: 180 ± 5 HB, Tensile strength:240 MPa.
1 J8 w0 @: F0 n/ ?2 \The cast GG15HC marked characteristics:
& O- D* g4 d$ O" Z9 q- High thermal conductivity,
2 f2 i. N+ R, J' C0 e. ^0 }+ d. ?- Low thermal stresses,
: d$ V% N/ d* c1 b: m1 S- High resistance against cracking due to heat generated,
) V6 y5 d5 G" W0 c! s- Good shock absorption properties. |
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