Title:
合金ワーク又は金属ワークの連続熱処理装置及び方法
Document Type and Number:
Japanese Patent JP7108688
Kind Code:
B2
Abstract:
Disclosed are a device and method for continuously performing grain boundary diffusion and heat treatment, characterized in that the alloy workpiece or the metal workpiece are arranged in a relatively independent processing box together with a diffusion source; the device comprises, in successive arrangement, a grain boundary diffusion chamber, a first cooling chamber, a heat treatment chamber, and a second cooling chamber, and a transfer system provided between various chambers for delivering the processing box; each of the first cooling chamber and the second cooling chamber uses an air cooling system, and the cooling air temperature of the first cooling chamber is above 25 °C and at least differs by 550 °C from the grain boundary diffusion temperature of the grain boundary diffusion chamber; the cooling air temperature of the second cooling chamber is above 25 °C and at least differs by 300 °C from the heat treatment temperature of the heat treatment chamber; and the cooling chamber has a pressure of 50 kPa to 100 kPa. The device provided by the present invention can increase the cooling rate and production efficiency, and improve product consistency.
Inventors:
King Kiyoe
Luo Inn
Wu Jian Peng
Luo Inn
Wu Jian Peng
Application Number:
JP2020517095A
Publication Date:
July 28, 2022
Filing Date:
October 09, 2018
Export Citation:
Assignee:
Fujian Changting Golden Dragon Rare-Earth Co., Ltd.
International Classes:
C21D1/773; B22F3/00; B22F3/24; C21D1/00; C21D6/00; C21D9/00; C22C33/02; C22C38/00
Domestic Patent References:
| JP2017228771A | ||||
| JP2010111893A | ||||
| JP63148088A |
Foreign References:
| CN103996521A | ||||
| CN103231059A | ||||
| CN102031350A | ||||
| CN102921950A | ||||
| CN1570155A |
Attorney, Agent or Firm:
Ken Ieiri