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The
valve body is cast in a four step process.
1.
The molten steel is poured into the ceramic mold and allowed to cool and
solidify.
2.
After cooling, the ceramic mold is removed (knock-out) from the casting.
3.
The gates are cut off the casting and the stubs and flash lines are ground
smooth.
4.
The casting is shot-blasted clean for surface appearance. |
