Title:
The non-Lynn coat disposal method of a charge for cold-forging of a plastic processing metallic material
Document Type and Number:
Japanese Patent JP6231720
Kind Code:
B2
Abstract:
A non-phosphate coated metal material for plastic working includes a metal material, a coating layer formed on a surface of the metal material, and a lubrication layer on the coating layer. The coating layer includes calcium tetraborate. A method for manufacturing a non-phosphate coated metal material includes a pre-treatment process to remove foreign matters or scale from a surface of a metal material, a coating treatment process to form a coating layer on the surface of the metal material by dipping the metal material, which is subject to the pre-treatment process, into a coating agent, and a lubrication treatment process to form a lubrication layer on the coating layer through the contact between the coated metal material and a lubricating agent. The coating agent includes a non-phosphate treatment solution including at least one borate selected from sodium tetraborate and a hydrate thereof, sodium nitrite, calcium hydroxide, and water.
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Inventors:
Cheungseok
Application Number:
JP2017500790A
Publication Date:
November 15, 2017
Filing Date:
June 11, 2015
Export Citation:
Assignee:
HAN YOUNG STEEL WIRE CO.,LTD.
International Classes:
C23C22/50; B21C9/00; C10M125/26
Domestic Patent References:
| JP2006272461A | ||||
| JP11006012A | ||||
| JP2003049188A | ||||
| JP2011001653A1 |
Attorney, Agent or Firm:
IPD International Patent Business Corporation