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邵氏硬度计就是我们俗称的橡胶硬度计,是测定硫化橡胶和塑料制品硬度的检测计,目前大都应用于机械制造、冶金、化工和建材等行业的科研生产和计量检测上。同时它还可以对成品和半成品的硬度性能进行检测,把控橡胶制品的质量关。它的特点是结构简单、使用便捷、易携带且读数直观等等。如今我国国内比较常用的邵氏硬度计有A/D两种型号,分别用于低中硬度和高硬度橡胶材料。本文主要介绍世界上各主要标准邵氏硬度计的分类规范,以及每个标准之间对硬度计参数的不同要求,包括硬度计的试验力和压针压足的具体尺寸。因为国内军用橡胶生产企业对于橡胶制品的质量要求水准较高,所以邵氏硬度计的计量性能十分重要。文章还将参照国内标准提出比较方便的校准方法,同时参考部分硬度计硬度的技术规范,对邵氏硬度计试验力进行了新的校准方法研究。新的校准方法用变臂杠杆平衡技术弥补目前使用的校准方法的不足之处,保证邵氏硬度计试验力参数准确。
Shore hardness tester is our commonly known rubber hardness tester, which is used to measure the hardness of vulcanized rubber and plastic products. At present, most of them are used in scientific research, production and measurement of machinery manufacturing, metallurgy, chemical industry and building material industries. At the same time it can also test the hardness of finished and semi-finished products, the quality control of rubber products. It is characterized by simple structure, easy to use, easy to carry and intuitive readings and so on. Now our country more commonly used Shore Hardness Tester has A / D two models, respectively, for low hardness and high hardness rubber material. This article mainly introduces the classification criteria of the main standard Shore hardness testers in the world, as well as the different requirements of each standard on the parameters of the hardness tester, including the test force of the hardness tester and the specific dimensions of the pressure gauge. Because the domestic military rubber manufacturers for rubber products of high quality standards, so the Shore hardness measurement performance is very important. The article will also refer to the domestic standard to propose a more convenient calibration method, at the same time, with reference to some technical specifications of the hardness of the durometer, a new calibration method of the Shore durometer test force is studied. The new calibration method to make up for the shortcomings of the currently used calibration method with variable arm lever balance technology to ensure the accuracy of the test parameters of Shore hardness tester.