Title:
ION EXCHANGE RESIN APPLIED TO DRY ELECTROPOLISHING OF METAL WORKPIECES AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/124975
Kind Code:
A1
Abstract:
Disclosed are an ion exchange resin applied to dry electropolishing of metal workpieces and a use thereof. The ion exchange resin is an organic, slightly acidic cation exchange resin with a porous structure; the ion exchange resin contains an electrolyte in the pores and/or on the surface. Compared to mechanical polishing and electropolishing, the ion exchange resin, when applied to the dry electropolishing of a metal workpiece, can fully polish parts that are not easily accessible for grinding, and does not require a large amount of chemical oxidant or electrolyte during polishing, thus being environmentally friendly and safe. In addition, the modified ion exchange resin can be regenerated after a period of use, greatly increasing the service life and reducing costs.
Inventors:
PANG HAO (CN)
LIAO BING (CN)
HONG PEIPING (CN)
YU YUE (CN)
LIAO BING (CN)
HONG PEIPING (CN)
YU YUE (CN)
Application Number:
PCT/CN2022/138712
Publication Date:
July 06, 2023
Filing Date:
December 13, 2022
Export Citation:
Assignee:
INST OF CHEMICAL ENGINEERING GUANGDONG ACADEMY OF SCIENCES (CN)
International Classes:
C25F3/16; C09G1/16
Domestic Patent References:
| WO2021019121A1 | 2021-02-04 | |||
| WO2021156531A1 | 2021-08-12 |
Foreign References:
| CN112534088A | 2021-03-19 | |||
| CN109778295A | 2019-05-21 | |||
| CN114481286A | 2022-05-13 | |||
| CN114908409A | 2022-08-16 | |||
| CN1900206A | 2007-01-24 | |||
| ES2604830A1 | 2017-03-09 | |||
| ES2721170A1 | 2019-07-29 | |||
| US20010020348A1 | 2001-09-13 | |||
| US20020077035A1 | 2002-06-20 |
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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