Title:
COOLING ROLLER AND FITTING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/000522
Kind Code:
A1
Abstract:
A cooling roller, comprising a roller sleeve (1) and a roller core (2). The roller sleeve (1) is provided on the periphery of the roller core (2); the roller sleeve (1) and the roller core (2) are interference-fitted; and an interference ratio between the inner diameter of the roller sleeve and the outer diameter of the roller core is 2-3.5‰. Also provided is a fitting method for a cooling roller, comprising: designing an interference ratio between a roller sleeve and a roller core; performing aging on the roller sleeve, wherein the aging is performed simultaneously with preheating; and interference-fitting the aged hot-sleeved roller sleeve and the roller core and cooling same to room temperature to obtain a cooling roller. The design of an interference ensures the implementation of pre-stress of the roller sleeve; and the aging of the roller sleeve and the preheating process before roller sleeve fitting are combined into one process, thereby avoiding the problem that overaging is prone to occur during preheating in the case that aging is completed before machining and preheating before fitting.
Inventors:
CHEN WENZHI (CN)
SHI YANG (CN)
LI BAISONG (CN)
LIU GUODONG (CN)
LI ZHIGANG (CN)
SHI YANG (CN)
LI BAISONG (CN)
LIU GUODONG (CN)
LI ZHIGANG (CN)
Application Number:
PCT/CN2021/124998
Publication Date:
January 26, 2023
Filing Date:
October 20, 2021
Export Citation:
Assignee:
AT&M AMORPHOUS TECH CO LTD (CN)
ADVANCED TECH & MATERIALS CO LTD (CN)
ADVANCED TECH & MATERIALS CO LTD (CN)
International Classes:
B22D11/00; B21B27/00; B22D11/06
Foreign References:
| US4442883A | 1984-04-17 | |||
| CN107520415A | 2017-12-29 | |||
| US4537239A | 1985-08-27 | |||
| CN112247478A | 2021-01-22 | |||
| EP0873805A1 | 1998-10-28 | |||
| CN110000350A | 2019-07-12 | |||
| CN210817375U | 2020-06-23 |
Attorney, Agent or Firm:
BEIJING IPLING INTELLECTUAL PROPERTY LAW FIRM (CN)
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