ASTM D3702-1994(2009)
止推垫试验机测定无润滑磨擦接触中材料磨损速率和摩擦系数的标准试验方法

Standard Test Method for Wear Rate and Coefficient of Friction of Materials in Self-Lubricated Rubbing Contact Using a Thrust Washer Testing Machine

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标准号

ASTM D3702-1994(2009)

发布日期

1994年

实施日期

废止日期

无

中国标准分类号

N75

国际标准分类号

19.060

发布单位

美国材料与试验协会

适用范围

This test method is used to determine the equilibrium rate of wear and coefficient of friction of materials in rubbing contact under useful operating conditions, that is, combinations of pressure and velocity that fall below the PV (pressure x00D7; velocity) limit of the test material. The user of this test method should determine to his own satisfaction whether the results of this test procedure correlate with field performance or other bench test machines. If the test conditions are changed, the wear rates may change and the relative value of one material with respect to another may also change.

Test conditions may be selected from Table 1.

The precision of wear measurement is relatively independent of test duration or amount of wear, but the precision of wear rate (calculation) improves with test duration and amount of wear. It is generally believed that useful wear rate precision requires the selection of a test duration sufficient to produce 0.1 mm (0.004 in.) of wear. Test durations will often be in the 50 to 4000-h range.

TABLE 1 Test Conditions^A

Rotational speed, rpm	Rubbing Velocity, ft/min (m/min)	Load, lb (kg), to Obtain PV, psi x00D7; ft/min (kg/cm 2 x00D7; m/min) at Selected Speeds
		PV1 1250 (26.8)	PV2 2500 (53.6)	PV3 5000 (107.1)	PV4 10 000 (214.3)
36	10 (3.05)	25.0 (11.3)	50.0 (22.7)	100 (45.4)	200 (90.7)
180	50 (15.2)	5.0 (2.3)	10.0 (4.5)	20.0 (9.1)	40.0 (18.1)
900	250 (76.2)	1.0 (0.5)	2.0 (0.9)	4.0 (1.8)	8.0 (3.6)

^A For many applications a wear rate exceeding 1.0 x00D7; 10^{x2212; 5} in./h (2.5 x00D7; 10^x2212;7 m/h) is considered excessive. Typical wear rates for some commonly used materials at different PV levels are:

Acetal homopolymer at PV1:

5 x00D7; 10x2212;6 ASTM D3702-1994(2009)相似标准 ASTM D3702-1994(2014) 用止推垫圈试验机测定自润滑磨擦接触中材料磨损速率和摩擦系数的标准试验方法 ASTM D3702-1994(2004) 用止推垫圈试验机测定自润滑磨擦接触中材料磨损速率和摩擦系数的标准试验方法 GB/T 17754-2012 摩擦学术语 ASTM D3702-94(2009) 使用推力垫圈试验机自润滑接触的材料摩擦磨损率和摩擦系数的标准试验方法 ASTM D3702-94(2019) 使用推力垫圈试验机自润滑接触的材料摩擦磨损率和摩擦系数的标准试验方法 推荐 立式万能摩擦磨损试验机功能特点及操作说明 立式万能摩擦磨损试验机是在一定的接触压力下，具有滚动、滑动或滑滚复合运动的摩擦形式，具有无级调速系统，可在极低速或高速条件下，用来评定润滑剂、金属、塑料、涂层、橡胶、陶瓷等材料的摩擦磨损性能。立式万能摩擦磨损试验机配备不同的摩擦副可分别进行球盘摩擦、销盘摩擦、止推圈摩擦、润滑剂摩擦，根据用户需求可提供球盘、球-三片、销-三柱、模拟凸轮、齿轮等多种摩擦副形式，功能覆盖全，用途广泛。... 摩擦磨损试验机常见标准 常见的几种标准如下：GB/T12583-98 润滑剂极压性能测定法（四球机法）GB3142-82 润滑剂承载能力测定法（四球法）SH/T0189-92 润滑油抗磨性能测定法（四球机法）SH/T0202-92 润滑脂极压性能测定法（四球机法）SH/T0204-92 润滑脂抗磨性能测定法（四球机法）ASTM D3702-94 止推圈测定材料摩擦性能的试验方法ASTM G99-04 销盘检测材料摩擦性能的试验方法... ASTM D3702-1994(2009) 中可能用到的仪器设备 摩擦磨损试验机 Copyright ©2007-2022 ANTPEDIA, All Rights Reserved 京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证：京ICP证110310号