Title:
SURFACE LUBRICATION TREATMENT METHOD OF METAL SUBSTRATE FOR COLD FORGING
Document Type and Number:
Japanese Patent JP2019166574
Kind Code:
A
Abstract:
To provide a surface lubrication treatment method of a metal substrate for cold forging capable of imparting excellent lubricity bearable to an industrial cold-forging processing.SOLUTION: A surface lubrication treatment method of a metal substrate for cold forging includes the first step for treating the metal substrate by pretreatment liquid containing tannin and a solvent, the second step for treating the metal substrate treated in the first step by alkaline post-treatment liquid containing aluminum ion and a solvent, and the third step for treating the metal substrate treated in the second step by a metal soap, a lubrication oil or a combination thereof.SELECTED DRAWING: None
Inventors:
WATANABE MASANORI
WATANABE TAKAYUKI
TOMINAGA HIROSHI
WATANABE TAKAYUKI
TOMINAGA HIROSHI
Application Number:
JP2019127653A
Publication Date:
October 03, 2019
Filing Date:
July 09, 2019
Export Citation:
Assignee:
SHOWA CHEM SHIZUOKA KK
SHOWA CHEM
SHOWA CHEM
International Classes:
B21J3/00; C23C22/62; C23C22/78; C23C22/82
Domestic Patent References:
| JPS55110778A | 1980-08-26 | |||
| JPS61291687A | 1986-12-22 | |||
| JP2001335955A | 2001-12-07 | |||
| JPS62227969A | 1987-10-06 |
Foreign References:
| US20040255818A1 | 2004-12-23 |
Attorney, Agent or Firm:
Shinei Patent Office