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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 # M8 ~4 T% v8 `! W! H4 m: Q# Z
9 ]$ F; ~& p6 O' B7 RHC:High Carbon Cast Iron; Cu,Cr is the mainly alloy element.
) p9 M8 |3 p# rThe material in the German literature GG15HC sign, in English is GIHC (Gray Iron High Carbon). 8 N5 d* L6 w8 _% S [4 h# V
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.
# w' M1 W( K" S' w( o1 y: l! D" `The cast-iron texture: Graphite (%) 12.5, Graphite shape IA3, Perlite (%) 99, Ferrite (%) <1;
0 P$ ?7 H" w9 m; u" LChemical 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.) S, A( d/ F. A4 A3 m5 C
Mechnical property:Hardness: 180 ± 5 HB, Tensile strength:240 MPa. ; {/ U1 g$ T, z U+ u: g& j
The cast GG15HC marked characteristics:6 s6 @ X0 L6 k! x/ R
- High thermal conductivity,
5 r) G6 Q6 M1 l% L3 B- Low thermal stresses,% H6 x) B( K' T9 Q" }3 ~/ s3 p
- High resistance against cracking due to heat generated,
: V6 a; T: i; Z1 f# |( [2 d! f- Good shock absorption properties. |
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