ISO 3384-1:2024 硫化橡胶或热塑性橡胶 压缩应力松弛的测定 第1部分：恒温下的测试
标准编号：ISO 3384-1:2024
中文名称：硫化橡胶或热塑性橡胶 压缩应力松弛的测定 第1部分：恒温下的测试
英文名称：Rubber, vulcanized or thermoplastic — Determination of stress relaxation in compression — Part 1: Testing at constant temperature
发布日期：2024-03
标准范围
本文件规定了用于确定由硫化橡胶或热塑性橡胶的测试件施加的反作用力的减小的两种程序，所述橡胶或热塑性橡胶已经被压缩到恒定变形并因此保持在预定的测试温度。反作用力可以通过连续测量系统或通过不连续测量系统来确定。规定了两种试验方法，方法？一个和方法？B.在方法上？a压缩和所有反作用力的测量都是在试验温度和方法中进行的？B压缩和所有反作用力测量均在标准实验室温度下进行。方法A和方法？B给出的结果与方法中的结果不同？B材料从试验温度到标准实验室温度的收缩率包括在结果中。本文件规定了两种形式的试件:圆柱形试件和环形试件。结果的比较仅在尺寸和形状相似的试件上进行时有效。环形试件的使用特别适合于确定液体环境中的应力松弛。本文件仅涉及恒定环境温度或高温下的测试。未规定在低于标准实验室温度的温度下进行测试。这些方法已被用于低？温度测试，但它们在这些条件下的可靠性尚未得到证实。
This document specifies two procedures for determining the decrease in counterforce exerted by a test piece of vulcanized or thermoplastic rubber which has been compressed to a constant deformation and maintained thus at a predetermined test temperature.
The counterforce can be determined either by means of a continuous-measurement system or by a discontinuous-measurement one.
Two test methods are specified, method A and method B. In method A the compression and all measurements of counterforce are made at test temperature and in method B the compression and all measurements of counterforce are made at standard laboratory temperature.
Method A and method B do not give the same results, as in method B the shrinkage of the material from the test temperature to standard laboratory temperature is included in the result.
Two forms of test piece are specified in this document: cylindrical test pieces and rings. Comparison of results is valid only when made on test pieces of similar size and shape.
The use of ring test pieces is particularly suitable for the determination of stress relaxation in liquid environments.
This document deals only with testing at constant ambient or elevated temperature. Testing at temperatures below standard laboratory temperature is not specified. The methods have been used for low？temperature testing, but their reliability under these conditions is not proven.
标准预览图
