用于螺纹紧固件的回转式气动装配工具.性能试验方法

[中文适用范围]： 本文件规定了用于安装螺纹紧固件的动力装配工具（本文件中称为“工具”）的实验室性能测试方法。它提供了一种测量扭矩重复性（分散性）的方法 — 在本文件规定的扭矩范围内， — 制造商定义的扭矩调节范围内，以及 — 制造商定义的操作循环次数。它提供了一种测量内置扭矩测量系统精度的方法，适用于具有此类功能的工具。请参阅附件 E。它提供了有关设备参数、测试内容以及如何评估和呈现测试数据的说明。它适用于 — 任何动力源的工具，例如气动、液压和电动，包括电池供电的 — 以通常连续的方式施加扭矩的 — 扭矩范围为 0.5 Nm 至 2000 Nm。超出此范围，可以修改测试方法，但须在测试报告中记录修改内容。它不适用于 — 冲击扳手或冲击冲击扳手， — 棘轮扳手或带棘轮离合器的扳手，以及 — 以不连续增量推进紧固件的其他工具，每次增量时都要克服静摩擦。它允许在任何测试扭矩水平下进行测试；但是，为了尽量减少各种测试扭矩水平所需的测试接头数量，附件 A 中提供了首选测试扭矩水平列表。 [外文原描述]： ISO 5393:2017 specifies a laboratory performance test method for power assembly tools (referred throughout the document as "tool") for installing threaded fasteners. ISO 5393:2017 provides a method for the measurement of torque repeatability (scatter) - over a range of torque rates as specified in this document, - over a range of torque adjustment as defined by the manufacturer, and - over a number of operating cycles as defined by the manufacturer. ISO 5393:2017 provides a method for the measurement of the precision of the built-in torque measurement system for tools incorporating such a feature. See Annex E. ISO 5393:2017 gives instructions on equipment parameters, what to test for and how to evaluate and present the test data. ISO 5393:2017 is applicable to tools - of any power source, e.g. pneumatic, hydraulic, and electric, including battery-powered, - which apply torque in a generally continuous manner, and - within the torque range 0,5 Nm to 2 000 Nm. Outside this range, it is acceptable to modify the test method providing that the modification is documented in the test report. ISO 5393:2017 is not applicable to - impact or impulse wrenches, - ratchet wrenches or wrenches with ratcheting clutches, and - other tools which advance fasteners in discontinuous increments, overcoming static friction at each increment. ISO 5393:2017 allows a test to be performed at any test torque level; however, in order to minimize the number of test joints necessary for a wide range of test torque levels, a list of preferred test torque levels is provided in Annex A.