METAL PART COOLING METHOD, METAL PART PRODUCING METHOD, AND METAL PART COOLING DEVICE

摘要

The problem is to uniformly cool a metal part by uniformly breaking vapor films formed when a cooling liquid vaporizes on the surface of the metal part. To solve this problem, vibration is applied to the vapor films formed on the metal part to break the vapor films without stirring a cooling liquid (1). And, after the vapor films have started to be broken, the cooling liquid (1) is stirred , whereby the bubbles produced by breaking the vapor films are diffused in the cooling liquid (1).