Title:
PRECISE AND EFFICIENT COLD-EXTENSION FORMING METHOD FOR UNSYMMETRICAL FERRULE BLANK
Document Type and Number:
WIPO Patent Application WO/2018/233377
Kind Code:
A1
Abstract:
A precise and efficient cold-extension forming method for an unsymmetrical ferrule blank, comprising pipe-cutting blanking, surface phosphorus saponification treatment, ferrule cold-extrusion forming, and turning post-treatment. In the step of surface phosphorus saponification treatment, firstly, shot blasting pretreatment is performed on the surface of a ferrule blank by using a shot blasting machine; and then, the process steps of washing, phosphorization, washing, saponification, and drying are completed in sequence. In the step of ferrule cold-extrusion forming, automatic material feed is performed by using an automatic feeding machine, and the material is conveyed to a cold-extrusion punch press for cold extrusion. The method features low equipment investment cost, short technological process, and low energy consumption.
Inventors:
WU ZHONGSHENG (CN)
CAI ZHENGLI (CN)
CAI PAN (CN)
CAI PULIN (CN)
CAI ZHENGLI (CN)
CAI PAN (CN)
CAI PULIN (CN)
Application Number:
PCT/CN2018/085023
Publication Date:
December 27, 2018
Filing Date:
April 28, 2018
Export Citation:
Assignee:
ZHEJAING JINGLI BEARING TECH CO LTD (CN)
International Classes:
B23P15/00; B21C23/00; B21C23/21; B21C33/00; C23C22/73
Foreign References:
| CN107322238A | 2017-11-07 | |||
| CN207143332U | 2018-03-27 | |||
| CN106623744A | 2017-05-10 | |||
| CN103071690A | 2013-05-01 | |||
| CN105880304A | 2016-08-24 | |||
| CN104624831A | 2015-05-20 | |||
| CN206104577U | 2017-04-19 | |||
| JPH1150080A | 1999-02-23 |
Attorney, Agent or Firm:
ZHE JIANG YONG DING LAW FIRM (CN)
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