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Formation method of coating

a technology of coating and formation method, which is applied in the field of coating formation method, can solve the problems of increasing production cost and increasing the number of processes, and achieve the effect of preventing the decrease of coating hardness in the coating par

Inactive Publication Date: 2014-03-18
JTEKT CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]The present invention provides the formation method of the coating that allows the formation of the coating on the part of a coated body except for an uncoated part and that allows the prevention of decrease of the hardness of the coating in a coated part.
[0011]An aspect of the invention relates to a formation method of a coating that coats a coated body with the coating. The formation method includes: generating cylindrical plasma in a vacuum deposition chamber as well as supplying material gas into the vacuum deposition chamber; applying pulse voltage to the coated body; and attaching a shield member that shields an uncoated member to an uncoated part where the coating of the coated body is not formed with separation spacing over a coated part where the coating is to be formed for preventing decrease of hardness of the coating in the coated part.
[0012]According to the above-mentioned aspects, the coating can be formed on the part of the coated body except for the uncoated part, and the decrease of the hardness of the coating in a coated part can be prevented.

Problems solved by technology

Thus, the number of processes increases, and it becomes a factor in increasing the cost of production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0061]FIG. 5A is a cross-sectional view of the jig 41 according to the Example 1 and a front view of the first shaft 10 of which the jig 41 covers one end that includes the yoke 11, (a view from the direction that the pair of arms 111 are separated). FIG. 5B is a cross-sectional view of the jig 41 according to the Example 1 and a side view of the first shaft 10 of which the jig 41 covers one end that includes the yoke 11 (a view from the direction that the pair of arms 111 are overlapped with each other).

[0062]The jig 41 is made of steel such as carbon steel and has a hollow triangle pole shape. The jig 41 has a bottom wall 410 with an arc shape in cross section, a first side wall 411 and a second side wall 412 that have a triangle shape in a plan view and face each other, a third side wall 413 and a fourth side wall 414 that have a rectangle shape in a plan view and are formed between the first side wall 411 and the second side wall 412, and a ceiling wall 415 that faces the bottom...

example 2

[0080]FIG. 7A is a cross-sectional view of the jig 51 according to the Example 2 and a front view of the first shaft 10 of which the jig 51 covers one end that includes the yoke 11 (a view from the direction that the pair of arms 111 are separated). FIG. 7B is a cross-sectional view of the jig 51 according to the Example 2 and a side view of the first shaft 10 of which the jig 51 covers one end that includes the yoke 11 (a view from the direction that the pair of arms 111 are overlapped with each other).

[0081]The jig 51 is made of steel such as carbon steel and has a hollow rectangular parallelepiped shape. The jig 51 has a bottom wall 510, a ceiling wall 515 that faces the bottom wall 510, and a first side wall 511, a second side wall 512, a third side wall 513, and a fourth side wall 514 that are formed between the bottom wall 510 and the ceiling wall 515. The ceiling wall 515 is formed with an insertion hole 515a through which the shaft part 13 of the first shaft 10 is inserted i...

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Abstract

A formation method of a coating that coats a coated body with the coating includes: generating cylindrical plasma in a vacuum deposition chamber as well as supplying material gas into the vacuum deposition chamber; applying pulse voltage to the coated body; and attaching a shield member that shields an uncoated member to an uncoated part where the coating of the coated body is not formed with separation spacing over a coated part where the coating is to be formed for preventing decrease of hardness of the coating in the coated part.

Description

INCORPORATION BY REFERENCE[0001]The disclosure of Japanese Patent Application No. 2010-177138 filed on Aug. 6, 2010 including the specification, drawings and abstract is incorporated herein by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a formation method of coatings.[0004]2. Description of Related Art[0005]For purpose of improving wear resistance and lubricity of slide parts, Diamond Like Carbon (hereinafter, abbreviated as “DLC”) films are formed on slide members that slide onto other members. If there is a part of the slide member on which the DLC film is not formed, the DLC film is formed on the entire slide member first, and the DLC film on the part is then removed (for example, see Japanese Patent Application Publication No. 2006-9110 (JP-A-2006-9110)).[0006]In a DLC coating removal method disclosed in JP-A-2006-9110, a workpiece is covered with a masking member such that an opening is positioned at...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): C23C16/32H05H1/24
Inventor ANDO, JUNJISUZUKI, TOMOOOGAWA, TOMOKISUZUKI, MASAHIROYAMAKAWA, KAZUYOSHIKUBO, TOSHIYAHASHITOMI, HIROYUKIYAMAMOTO, DAIGO
Owner JTEKT CORP