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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
7 q Q" D' H. Z+ s) {9 O( v
. O e! m/ h( ~5 THC:High Carbon Cast Iron; Cu,Cr is the mainly alloy element.
; V% y- p! c7 j# cThe material in the German literature GG15HC sign, in English is GIHC (Gray Iron High Carbon).
! D' i; V, [ K5 B9 lGG-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.
1 P3 y1 h8 l, TThe cast-iron texture: Graphite (%) 12.5, Graphite shape IA3, Perlite (%) 99, Ferrite (%) <1;# s5 b0 P$ _) `
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.; r/ Q( b. }1 y& k, |8 ]
Mechnical property:Hardness: 180 ± 5 HB, Tensile strength:240 MPa.
# W. Q7 r! x! g9 _ Q6 J* u1 AThe cast GG15HC marked characteristics:
" m/ a& a- C( f/ M* i- High thermal conductivity,
* M* d$ a/ D% e- Low thermal stresses,- e0 e% P6 X- O3 B; |6 ?
- High resistance against cracking due to heat generated,/ i, d. E! k6 j9 @% w
- Good shock absorption properties. |
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