Title:
METHOD FOR PRODUCING PLATED BLACK-CORE MALLEABLE CAST IRON MEMBER, AND PLATED BLACK-CORE MALLEABLE CAST IRON MEMBER
Document Type and Number:
WIPO Patent Application WO/2020/189637
Kind Code:
A1
Abstract:
This method for producing a plated black-core malleable cast iron member having a plating layer formed on the surface thereof, includes: a step for performing graphitization in a non-oxidizing and decarburizing atmosphere; a step for subjecting the surface of the black-core malleable cast iron member after graphitization, to particle projection treatment so that silicon oxide remains on the surface; a step for immersing the black-core malleable cast iron member after the particle projection treatment, in a flux for at least 3.0 minutes; and a step for performing hot-dip plating the heated black-core malleable cast iron member after the flux immersion.
Inventors:
GOTO RYO (JP)
FUKAYA TAKAYUKI (JP)
MATSUI HIROSHI (JP)
SAWADA AKINORI (JP)
FUKAYA TAKAYUKI (JP)
MATSUI HIROSHI (JP)
SAWADA AKINORI (JP)
Application Number:
PCT/JP2020/011522
Publication Date:
September 24, 2020
Filing Date:
March 16, 2020
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
C23C2/02; C21D5/00; C21D5/14; C23C2/06; C22C37/00; C22C37/10
Foreign References:
| JPS58151463A | 1983-09-08 | |||
| JP2016074955A | 2016-05-12 | |||
| JP2002115094A | 2002-04-19 | |||
| JPH073827A | 1995-01-06 |
Attorney, Agent or Firm:
YAMAO, Norihito (JP)
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