استاندارد ASTM G181 در خصوص Conducting Friction Tests of Piston Ring and Cylinder Liner Materials Under Lubricated Conditions
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- 18th ژانویه 2018
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استاندارد ASTM G181 در خصوص Conducting Friction Tests of Piston Ring and Cylinder Liner Materials Under Lubricated Conditions
استاندارد ASTM G181 در خصوص
Standard Test Method for
Conducting Friction Tests of Piston Ring and Cylinder Liner Materials Under Lubricated Conditions
نسخه ۲۰۱۱
۱۰ صفحه
Scope1.1 This test method covers procedures for conductinglaboratory bench-scale friction tests of materials, coatings, andsurface treatments intended for use in piston rings and cylinder liners in diesel or spark-ignition engines. The goal of thisprocedure is to provide a means for preliminary, cost-effective screening or evaluation of candidate ring and liner materials. Areciprocating sliding arrangement is used to simulate the contact that occurs between a piston ring and its mating linernear the top-dead-center position in the cylinder where liquid lubrication is least…