All about cast iron exhaust
06-01-2011, 03:50 PM
|All about cast iron exhaust
At the transformation temperature, the volume changes and this volume change leads to irregular expansion characteristics on the part of the castings. The alloys which can be used must have transformation temperatures which are higher than the maximum temperature of use. Austenitic cast steel alloys or alloys with a high nickel content are also used for the abovementioned high use temperatures. Nickel is a relatively expensive raw material. The cast iron exhaust manifolds are often also formed from sheet-metal parts, in which case the poor sound insulation makes its presence adversely felt. These solutions are relatively complex to produce.
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