brief introduction
Test sieve is a sieve that meets the standard technical requirements of test sieve and is used for particle size analysis by screening method. [5] It is mainly composed of screen surface and screen frame. According to the structure of screen surface, it can be divided into metal wire woven mesh test screen, metal perforated plate test screen and electroformed thin plate test screen. The national standard gb6003-1985 "test sieve" has made unified provisions on the requirements and marking methods of the test sieve produced in China, and uniformly expressed the sieve hole size and particle size in mm or nm [3].
Useage
In many industries, particle size control is an extremely important factor of product quality. For example, in the particle size analysis and screening test conducted in geological exploration, metallurgy, chemical industry, building materials, abrasive and other industries, the particle size control directly affects the final quality or survey results. In scientific research and design, the particle size composition of the processed raw materials and products is an important design and calculation data. Therefore, the test screen is of great significance to production, scientific research and design in the national economy
