Title:
PRESSE SINTERING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2024/019213
Kind Code:
A1
Abstract:
A press sintering apparatus according to the present invention comprises: a sintering mold having a mold housing having an inner space open vertically, and a mold sleeve stably placed on the inner wall of the mold housing; an upper punch and a lower punch for vertically pressing a sintered base material introduced into the mold sleeve; and a housing support part for supporting only the lower end of the mold housing without supporting the lower end of the mold sleeve, wherein after forming a sintered body by pressing the sintered base material introduced into the mold sleeve, the sintered body is cooled to a preset primary cooling temperature, is removed from the sintered mold, and then cooled to a preset secondary cooling temperature. The press sintering method and apparatus according to the present invention can prevent damage to the mold housing or the sintered body due to the difference in shrinkage between the mold housing and the sintered body, which occurs during the cooling process after hot pressing, and thus can advantageously improve productivity of the sintered body and increase the lifetime of the mold housing.
Inventors:
JOO KYUNG (KR)
LEE KI BOCK (KR)
SONG JOO HYUN (KR)
LEE KI BOCK (KR)
SONG JOO HYUN (KR)
Application Number:
PCT/KR2022/012178
Publication Date:
January 25, 2024
Filing Date:
August 16, 2022
Export Citation:
Assignee:
SAMYANGCRATECH CO LTD (KR)
International Classes:
B28B3/02; B28B3/08; B28B3/10; B28B7/00; B28B7/24; B28B11/24; C04B35/645
Foreign References:
| KR20200089921A | 2020-07-28 | |||
| KR102061269B1 | 2019-12-31 | |||
| KR102132251B1 | 2020-07-09 | |||
| JP2021195612A | 2021-12-27 | |||
| KR20120012342A | 2012-02-09 |
Attorney, Agent or Firm:
KIM, Sun Kee et al. (KR)
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