Stainless steel standard sieve in Shanghai

Profile standard sieve is mainly used for test rooms, laboratories, materials selection, screening, grading and inspection department and other standard sieve-like particle, particle size structure of powder materials, liquid type solids content and the amount of debris accurate screening filtering, detection, the series test sieves with low noise, standard sieve, sieve, filter the sample efficiency, high precision, is widely used in research and production of metallurgical, cement, chemicals, pharmaceuticals, building materials, geology, defense and other sectors, laboratory, quality control room. Categories are divided into: General Standard Sieve, special chemical sieve, sieve special soil, gravel special sieve, sieve sand special, special sieve cement, asphalt special sieve, sieve dedicated coal, metallurgical and mineral testing sieve mesh material is divided into three types, characteristics and applications of each varies: wire braid (the most widely used cell from between 2.36 mm to 0.02 mm square mesh only), punching plate screen (mainly used in large mesh, There are two round hole and square hole mesh from 0.2 to several hundred millimeters), electro-forming screen (mainly used for high precision of the occasion, can be done within each cell in the average margin of error). As a standard sieve professional manufacturers must have the tools, microscopes and projectors, tools microscope is used to check the accuracy of the mesh using the arithmetic mean method (now the latest method is normal methods). Advantages and disadvantages of wire braid lowest cost, good flexibility, but the lowest relative accuracy (allowing a large mesh), the mesh may be deformed, (can be controlled by the mesh precision reaming and shrinkage, and electrochemical methods to make holes fixed) generally requires high-precision screen production capacity of the manufacturers to ensure mass production (need to select the line with GB / T6003.1-1997 standards from a large number of high-precision screen sieve). Application industry is the largest diamond industry, especially export manufacturers to the standard of a negative difference, because foreign Yu Zhongguo poor half numbers, while more than 90 percent of basic grains such as 230. Fortunately, 75 microns to 63 microns. Punching plate mesh, mesh uniform precision and difficult to deformation, is mainly used for detecting large particles, because there are two round holes and square holes, so as to collect the hole asphalt sieve, sieve round holes such as the use of coal.