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http://dx.doi.org/10.9725/kstle.2009.25.5.330

A Experimental Study on Wear Characteristics of Cu Alloy for Piston Head and Bush Material of Hydraulic Servo Cylinder  

Cho, Yon-Sang (Dept. of Mech. Eng., DongA University)
Kim, Young-Hee (Dept. of Materials and Eng., DongA University)
Byon, Sang-Min (Dept. of Mech. Eng., DongA University)
Park, Heung-Sik (Dept. of Mech. Eng., DongA University)
Publication Information
Tribology and Lubricants / v.25, no.5, 2009 , pp. 330-334 More about this Journal
Abstract
Hydraulic servo cylinders have been used to control accurately a large machine in power plant. Especially, Piston head and bush of servo cylinder is assembled sleeve and piston head and bush made of Cu alloy and pad sealing part. A damages of sleeve and piston head, bush are caused by friction and wear. Thus, It is necessary to examine friction and wear characteristics of Cu alloys for the piston head and bush. In this study, to be reliable on the piston and cylinder parts, dry friction and wear experiments were carried out with Cu alloys of four kinds of AlBC, PBC, BC and BS using reciprocating friction tester of pin on disk type. From this study, the result was shown that the AlBC and PBC with alloy elements were excellent to resistance wear. As the sliding speed was increased, the wear loss of PBC decreased than another Cu alloy.
Keywords
Hydraulic servo cylinders; Reciprocating friction tester; Cu alloy; AlBC; PBC;
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