Is divided into: the standard sample sieve, sieve, special chemical soil special sieve, sieve, sieve sand gravel special special cement, asphalt, special sieve sieve, special coal, metallurgical ore inspection special sieve sieve

Standard sieve screen material

Is divided into three types, characteristics and application scope of each kind of different metal wire mesh (the most widely used mesh from 2.36 mm to 0.02 mm only mesh), punching plate screen (mainly used in large mesh, two mesh from 0.2 to several hundred mm round and square hole) electric screen (mainly used for high precision molding occasions, can be done in each cell is the average error range). As a standard screen professional manufacturers must have tool microscope and projector, tool microscope is used to check the accuracy of the mesh, using the arithmetic mean method (now the latest is normal distribution method). 

The advantages and disadvantages of three kinds of screen

Woven wire net with the lowest cost, good flexibility, but the relative accuracy (minimum allowed mesh), mesh deformation (may, can control the mesh precision through hole reaming and shrinking and electrochemical methods make the holes fixed) generally require high precision mesh production capacity of the manufacturers to ensure mass production (need to select the screen meet the GB/T6003.1-1997 standard from a large number of high precision screen). The application of the industry is the largest diamond industry, especially the requirements of export manufacturers is the standard negative difference, because more than half the number of foreign countries in China, while more than 90% of the basic particles accounted for more than 230, such as the good in the range of 75 microns to 63 microns.   

Punching plate screen mesh precision is not easy deformation, mainly used for detection of large particles, with a circular hole and a square hole two, so as to collect and screen hole hole bituminous coal sieve used.   
Electric molding screen by electrochemical method manufacture, the highest precision, theoretical accuracy to a micron, but because the process of mold manufacturers, will be very different, and at the same time, flexibility is not good, easy to crack, the cost is too high, not suitable for the production of.