SKD11/CR12MOV Die Heat Treatment Process Upgrade – 35% Longer Service Life

Vacuum quenching replaces traditional salt bath quenching: A vacuum quenching furnace is applied, with heating rate controlled at 5℃/min. It prevents die surface oxidation and decarburization, and improves material hardness uniformity to HRC 60-62.

Added cryogenic treatment: -196℃ cryogenic treatment is conducted immediately after quenching. It eliminates residual austenite, stabilizes die dimensional accuracy and reduces deformation risks during use.

Test data shows that the upgraded process works well for high-wear scenarios like stainless steel stamping and progressive drawing dies. For the same SKD11 drawing die, service life increased from 200,000 to 270,000 stamping cycles, cutting customers' die replacement costs and downtime by 30%.