| 摘要 |
PROBLEM TO BE SOLVED: To provide the subject member capable of simultaneously satisfying abrasion resistance, sliding properties and manufacturability and especially sufficiently improving the sliding properties by regulating the surface roughness of a titanium material or a titanium alloy material cast into a prescribed shape so as to afford specific conditions and forming a diamondlike carbon film having a specified thickness on the surface thereof. SOLUTION: This member for guide is obtained by casting a molten metal of a titanium material or a titanium alloy material into a mold, providing a casting of a prescribed shape, then regulating the surface of the casting to a surface roughness of <=3.0μm center line average height (Ra ) and subsequently forming a diamondlike carbon film having 0.5-10μm thickness through a bonding middle film having preferably <=0.3μm thickness (silicon or silicone carbide or titanium carbide) on the surface thereof. A plasma chemical vapor deposition(CVD) method, an ionic vapor deposition method or a sputtering method can be applied to the formation of the diamondlike carbon film.
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