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全国砂布质量测试是由商业部上海五金商品科技情报中心站委托河南省五金交电化工公司主办的,并由全国六个省市的工商双方和一机部磨料磨具研究所共同组成砂布质量测试小组,于1979年十二月在郑州对2个单位(由各省市五金系统推荐指定的,原则上规定一个省市只参加一家生产厂)生产的砂布质量进行了测试。规定测试三种粒度号,即60~#、100~#和150~#,每种粒度各送样10张,由工商双方在库存中抽取。这次由于样品的代表性较强,测试工作比较全面和系统,因而获得了较完整的技术数据。本文就测试结果和一些问题试作分析,并提出一些意见,以期有助于今后砂布质量的提高。测试主要分两个内容:一是外观质量,二是内在质量。并以分数形式评定质量的优劣。现分别介绍于后:
The national emery cloth quality test was sponsored by the Henan Hardware Commodity Science and Technology Center of the Ministry of Commerce of the People’s Republic of China, and was jointly sponsored by both the industrial and commercial parties of the six provinces and municipalities of China and the Institute of Abrasives and Abrasives. In December 1979, the team tested the quality of emery cloth produced in Zhengzhou by two units (recommended by the hardware systems of each province and municipality and, in principle, a province and city only participate in one production plant). The regulations stipulate testing of three granularity numbers, ie 60~#, 100~#, and 150~#. Each particle size shall be given 10 samples, which shall be drawn by the industrial and commercial parties in the inventory. This time, due to the strong representativeness of the sample, the test work was more comprehensive and systematic, thus obtaining more complete technical data. This article tries to analyze the test results and some questions, and put forward some opinions in order to help improve the quality of the sand cloth in the future. The test mainly consists of two parts: First, the appearance quality, and the second is the intrinsic quality. And assess the quality of the score in the form of scores. Are introduced later: