Introduction to screen types, characteristics and uses

Introduction to screen types, characteristics and uses
Screens are classified according to raw materials: According to the raw materials used, they are divided into three categories: silk screens, metal wire screens and synthetic fiber screens.
1. Silk screen mesh
Silk screen mesh is made of mulberry silk of different fineness according to specifications, and is woven with full hank weave, half hank weave or plain weave. The weaving method is similar to mesh cloth. When the mesh number is small, use a full skein weave; when the mesh number is large, use a half skein or plain weave. The specifications of silk screens range from 4 to 62 holes/cm. They are mostly used for screening in the grain industry and can also be used in grinding wheel emery cloth factories to screen sand of different thicknesses.
2. Metal wire screen
Metal screen is a mesh product made of metal wire through certain technical methods. Weaved with copper wire, stainless steel wire, iron wire and steel wire as raw materials. The diameter of the metal wire is mostly 4 to 0.025 mm. Generally, plain weave, twill weave, and mat weave methods are used. The metal screen has clear and correct holes, a flat mesh surface, and is resistant to high temperatures and wear. The stainless steel screen is also corrosion-resistant. Therefore, metal screens are mostly used for powder screening and oil filtering.
3. Metal screens
Metal screens can be divided into: stainless steel square mesh, stainless steel dense mat mesh, stainless steel crimped mesh and other types of screens. Stainless steel square mesh is widely used in screening and screening of solid materials, liquid filter. Involving many industries, such as chemical industry, food and condiment industry, mining industry, pharmaceuticals, paper making, metal powder manufacturing, fertilizer industry. Stainless steel dense-grain mat mesh Stainless steel dense-grain mesh is suitable for gas, liquid filtration and other media separation, and is widely used in precision pressure filters, fuel filters, vacuum filters and other industries.
4. Manganese steel screen
Manganese steel screen: Manganese steel is a high-strength manganese-resistant steel. It is mainly used to withstand harsh working conditions such as impact, extrusion, and material wear. The main form of damage is wear and consumption. Some parts Breakage and deformation. Wear is divided into three types: friction and wear when the surfaces of metal components are in contact with each other and move; abrasive wear when other metal or non-metallic materials hit the metal surface; and erosion wear caused by the contact between flowing gas or liquid and metal. The wear resistance of wear-resistant steel depends on the material itself, and wear-resistant steel shows different wear resistance under different working conditions. Both the material itself and the working conditions determine its wear resistance.
5.Synthetic fiber screen
Synthetic fiber screens are available in nylon or polyester filament and brown. The filament uses 15-30 denier monofilament, and the screen mesh surface is smooth, which is beneficial to filtration. The fabric weave can be square, flat or plain, with specifications ranging from 19 to 104 holes/cm. It is mostly used for printing silk screen and making integrated circuit printed circuit boards. It can also be used to screen finer particles such as picture tube phosphor powder and magnetic powder of magnetic tape. The brown silk screen uses thicker nylon brown silk as raw material, with a diameter of 0.55 to 0.1 mm. The fabric is mostly a plain mat-shaped structure and is used for mineral processing, pulp filtering, conveyor belts, etc. Synthetic fiber screens are rust-free and corrosion-resistant and can replace some metal screens.

Characteristics of metal screens, product features: 1. Precision weaving; 2. Regular mesh; 3. Reliable filtration accuracy; 4. High compressive strength; 5. High temperature resistance and chemical corrosion resistance; 6. Good wear resistance; 7. Good formability.
Screens are an inevitable product of the refinement of coal mines, iron mines, industry, and chemical raw materials. They are components of tiny cells that drive forward the development of society, and indirectly or directly affect the development of society. The selectivity of the screen is mainly selected based on the characteristics of the screen.
Screen application fields: Screen application fields include industry, technology, agriculture, and national defense. From cutting-edge science and technology, industry, to basic necessities, food, housing, transportation, and cultural life, they develop simultaneously with the national economy and are closely related to the national economy and people's livelihood. Mainly used in: aviation, aerospace, printing, printing and dyeing, electronics, mining, pharmaceuticals, grain, food processing, chemical industry.