ISO 7-2:2000 密封连接的管螺纹.第2部分：极限量规检验

标准编号：ISO 7-2:2000

中文名称：密封连接的管螺纹.第2部分：极限量规检验

英文名称：Pipe threads where pressure-tight joints are made on the threads — Part 2: Verification by means of limit gauges

发布日期：2000-09

标准范围

ISO 7的本部分规定了使用极限量规验证锥形内螺纹和外螺纹的过程以及管道系统部件和其他产品上的平行内螺纹ISO 7-1中有详细说明。如果没有特殊预防措施，所述计量系统可能不适用于注射螺纹的计量模制塑料工件。ISO 7的这一部分并未完全涵盖螺纹质量和质量的全面控制所需的所有要求尺寸。需要对工具和设备进行额外控制，并在生产过程中进行目视检查，以确保确保完全符合ISO 7-1，例如内螺纹上有用螺纹的长度工件应通过直接测量进行检查。附录A概述了ISO 7本部分中包含的量规，以及螺纹元件的详细信息由每个仪表和仪表识别号控制。如果对是否符合ISO 7-1的要求存在争议，则应使用ISO 7本部分中的量规被视为对工件上由其控制的螺纹元件起决定性作用。

This part of ISO 7 specifies a process using limit gauges, for the validation of taper internal and external threadsand parallel internal threads on piping systems components and other products, the dimensions and tolerances ofwhich are detailed in ISO 7-1.The gauging system described may not be suitable, without special precautions, for gauging of threads on injectionmoulded plastic workpieces.This part of ISO 7 does not cover completely all the requirements necessary for full control of thread quality anddimensions. Additional control of tools and equipment and visual inspection during production are required toensure complete compliance with ISO 7-1, for example the length of useful thread on internally threadedworkpieces should be checked by direct measurement.Annex A gives a summary of the gauges included in this part of ISO 7, together with details of the thread elementscontrolled by each gauge and gauge identification numbers.In the event of a dispute over compliance with the requirements of ISO 7-1, the gauges in this part of ISO 7 are tobe considered as decisive for the thread elements which they control on the workpiece.

标准预览图