Title:
締結部品の製造方法
Document Type and Number:
Japanese Patent JP6654877
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fastening component showing superior heat radiation performance and anti-corrosion characteristic and hardly generating delayed fracture by hydrogen brittleness.SOLUTION: A fastening component 1 comprises a formed part in which a blank material is formed into a specified shape, a first covering layer 11 including zinc or zinc and nickel constituents formed at an outer periphery of the formed part, and a second covering layer 12 including tin or tin and zinc constituents formed at an outer periphery of the coated part including the first covering layer 11. In addition, a manufacturing process for the fastening component 1 comprises a forming step 20 for forming the formed part; a first plating step 40 for electrical zinc plating the formed part attained by the forming step; a baking step 50 for heating the coating formed part got at the first plating step 40 in a range of 190°C to 210°C for more than two hours; and a second plating step 60 for tin plating the coated formed part attained at the baking step 50.SELECTED DRAWING: Figure 1
Inventors:
Masashi Ueba
Nobuhiro Ueshima
Teshima Masakazu
Koji Yamamoto
Nobuhiro Ueshima
Teshima Masakazu
Koji Yamamoto
Application Number:
JP2015233918A
Publication Date:
February 26, 2020
Filing Date:
November 30, 2015
Export Citation:
Assignee:
Nitto Seiko Co., Ltd.
International Classes:
F16B33/06; F16B35/00
Domestic Patent References:
| JP5263208A | ||||
| JP2013040635A |