第二号摩擦试验机 3600转每分钟 分段功率测试

[中文适用范围]： 本SAE推荐实践旨在定义一种标准测试方法，但可能会根据经验和技术进步频繁修改。在考虑使用本标准时，应牢记这一点。SAE第2号摩擦试验机用于评估使用汽车传动液的自动变速器板式离合器的摩擦特性。它也可用于对湿摩擦系统进行耐久性测试。本文件的特定目的是定义一种3600转/分钟的分级功率测试，以评估湿摩擦系统性能随功率水平变化的情况。该程序使用初始接合速度为3600转/分钟，并作为供应商和终端用户共同使用的标准程序。摩擦系统的供应商或用户选择的唯一变量为：a. 摩擦材料；b. 液体；c. 反应板。在使用本测试报告结果时，必须明确标识这三个变量。如果测试参数或系统硬件（除摩擦材料、测试液体或反应板外）发生改变，则数据可能无法被报告为使用本文件所得。本程序不用于评估初始摩擦系数或磨合特性。如需此信息，请参见SAE J2490。 [外文原描述]： This SAE Recommended Practice is intended as the definition of a standard test, but it may be subject to frequent change to keep pace with experience and technical advances. This should be kept in mind when considering its use. The SAE No. 2 Friction Test Machine is used to evaluate the friction characteristics of automatic transmission plate clutches with automotive transmission fluids. It can also be used to conduct durability tests on wet friction systems. The specific purpose of this document is to define a 3600 rpm stepped power test for the evaluation of wet friction system performance variation as a function of power level. This procedure uses an initial engagement speed of 3600 rpm and is intended as a standard procedure for common use by both suppliers and end users. The only variables selected by the supplier or user of the friction system are: a Friction material b Fluid c Reaction plates These three variables must be clearly identified when reporting the results of using this test. If any of the test parameters or system hardware as described in this document are changed, other than the friction material, test fluid, or reaction plates, the data may not be reported as having been obtained using this document. This procedure is not intended to evaluate the initial coefficient or break-in characteristics. For this information, refer to SAE J2490.