| 发明名称 |
SELECTION METHOD OF LUBRICATING FILM |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of selecting a lubricating film which enables energy saving while sufficiently reducing abrasion of a sliding part of a hydraulic device. <P>SOLUTION: A method of selecting a lubricating film comprises: a step of preparing a test substance 10 in which a lubricating film 2 containing phosphorus and sulfur is formed on the surface of a steel material 1; a step of measuring a film thickness T of the lubricating film 2 for the test substance 10; a step of determining a variation range W of the concentration ratio [M<SB POS="POST">p</SB>]/[M<SB POS="POST">s</SB>] of a phosphorus element concentration [M<SB POS="POST">P</SB>] (mol%) to a sulfur element concentration [M<SB POS="POST">S</SB>] (mol%) in a thickness direction D of the lubricating film by measuring the sulfur element concentration [M<SB POS="POST">S</SB>] (mol%) and the phosphorus element concentration [M<SB POS="POST">P</SB>] (mol%) in the lubricating film 2 for the test substance 10; and a step of selecting a lubricating film in which the film thickness T is 1 nm or more and 50 nm or less and the fluctuation range W is 5 or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
| 申请公布号 |
JP2011227001(A) |
申请公布日期 |
2011.11.10 |
| 申请号 |
JP20100099199 |
申请日期 |
2010.04.22 |
| 申请人 |
JX NIPPON OIL & ENERGY CORP |
发明人 |
KONISHI TOMOHIRO;KONISHI SHOZABURO;KONNO SOICHIRO |
| 分类号 |
G01N33/20;C10M101/02;C10M107/02;C10M129/40;C10M133/06;C10M137/04;C10M137/10;C10M169/04;C10N30/00;C10N30/06;C10N40/02;C10N40/04;C10N40/08;G01B15/02 |
主分类号 |
G01N33/20 |
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