标准摘要
[中文适用范围]: 本文件规定了测定硫化或热塑性橡胶辊套表观硬度的方法,以肖氏硬度表示,用于仅需要中等精度的测量。 所使用的方法和设备基本上是 ISO 48-4 中描述的那些,在这种情况下的测量是在经过调节的橡胶覆盖辊的弯曲表面上而不是在平坦的测试件上进行的。 指定了肖氏 A 型和 D 型仪器,后者用于高硬度滚子的测量。 注 对于某些滚筒,滚筒表面的橡胶厚度可能存在显着变化,这可能会影响测量的表观硬度。 [外文原描述]: This document specifies a method for the determination of the apparent hardness of vulcanized- or thermoplastic-rubber roller covers, expressed in Shore hardness, for measurement where only medium precision is required. The method and apparatus used are essentially those described in ISO 48-4, the measurements in this case being made on the curved surface of the conditioned rubber-covered roller rather than on a flat test piece. Shore type A and type D instruments are specified, the latter being used for measurements on rollers of high hardness. NOTE With some rollers, there can be significant variation in the thickness of the rubber over the surface of the roller, which could affect the measured apparent hardness.
英文名称Rubber, vulcanized or thermoplastic — Determination of hardness — Part 7: Apparent hardness of rubber-covered rollers by Shore-type durometer method