Surface roughness refers to the unevenness of the machined surface with small spacing and small peaks and valleys. The distance between two peaks or troughs (wave distance) is small, and it is a microgeometric error.
Surface roughness testing standard (partial).
1. NEN 3636-1980 Surface Roughness Roughness Comparison Sample.
2. NEN 3635-1980 Surface roughness Determination of FLA roughness coefficient.
3. DIN 3969-1:1991-10 Surface roughness of tooth surface; Roughness parameters, surface grade.
4、 gb/t 2679.4-1994 Determination of paper and cardboard roughness (Benteson roughness method).
5. CNS 7868-1981 surface roughness.
6. KS B 0162-1999 Surface roughness terminology. Part 1: Surface and Roughness Variables.
7. DS ISO 4287 2:1986 Surface roughness Terminology Part 2: Parameters and characteristics of surface roughness.
Uses of surface roughness
By detecting the surface roughness, it can be verified whether the dimensional accuracy of the hardware products meets the requirements to ensure the performance and assembly accuracy of the product. In addition, roughness testing can also be used to improve the corrosion resistance, tightness performance, and related fit stability of the workpiece, which is conducive to product quality control.
Surface roughness test items
Surface roughness testing, surface roughness assessment, routine testing, third-party testing, on-site testing, etc. (The details are subject to the actual situation of the customer).
Surface roughness testing agency, provide CMA CNAS qualification test report, combustion calorific value testing and testing services for the whole country, Shanghai, Beijing, Tianjin, Shenyang, Jinan, Nanjing, Suzhou, Hangzhou, Ningbo, Hefei, Zhengzhou, Wuhan, Changsha, Guangzhou, Shenzhen, Chengdu, Xi'an and other regions have branches.