Preheat

S

shqxk

Joined
Mar 26, 2012
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What is the correct way to do the preheat of high alloy tool steel like CPM3V or CPM-M4?


1. Put the blade in the furnace at room temp then ramp to aimed preheat temp, soak for X time then rapidly heat to austenitizing?

2. Heat the furnace to the preheat temp, put the blade in, soak for X time then heat to austenitizing?



Also are there any benefit of multi-step preheat treating?
 
Pre-heat oven to the set temp ( 1200°F) and place blade in. Start pre-heat time when the oven returns to the set temp. Ramp to austenitization and soak.
 
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