What is the difference between Metal Filter Element and Sintered Felt?

316L Stainless Steel Filter Cartridge is a kind of high toughness filter material which is a kind of high-toughness filter material which is made of composite laminates, which is made by pressing multiple layers of stainless steel metal mesh and vacuum sintering. The multi-layer metal mesh has various pore layers to generate pore gradients, which can control the filtration accuracy and the single-layer pollution holding capacity. The stainless steel filter element includes a sintered filter element and a sintered felt filter element. The following Staples compare and analyze the differences between the two types of filter elements.

316L Stainless Steel Filter Cartridge

1. Material: The material of the sintered filter element is the same or multiple stainless steel and stainless steel woven mesh, and the material of the sintered felt is metal fiber with various wire diameters.

2. Sintering process: Although both are named as sintering, they are various in process. First is the sintering temperature. The sintered filter element is processed at a standard of 1260 ° C, while the sintered felt is 1180 ° C. The sintered filter element is an orderly stacking of stainless steel and stainless steel sintered filter elements according to the number of superimposed layers, and the sintered felt structure type is disordered.

3. Fouling capacity: Due to the differences in materials and structures, sintered felts will have a variety of gradient pore sizes during processing, so the fouling capacity will be greater.

Cleaning cycle: Under the same cleaning standard, the cleaning cycle of the two is determined by the amount of dirt. Therefore, the cleaning cycle of the stainless steel sintered filter element is shorter.

4. Blind porosity: The sintered filter element is formed by laminating layers of stainless steel mesh in accordance with the composite structure. The structure is neat and orderly. Compared with the non-woven sintered felt, the blind porosity of the sintered element is almost 0.

5. Filtration accuracy: The filtration accuracy of the stainless steel sintered filter element is 2 ~ 60μm, while the sintered felt is 1-80μm.

The main difference between Metal Filter Element and other filter elements is the use of a large number of high-precision welding processes. The stainless steel sintered metal mesh is subjected to seam welding after rounding. Welding must ensure roundness. After welding, the weld seam is flattened to make the whole look Beautiful, it is also ready for the next overall welding. The sintered mesh is then welded to the end caps at both ends by stainless steel welding wires. The sintered mesh cannot be burned during the welding process to prevent local burnout, which causes the filter element to fail to filter. Therefore, the welding environment must be argon Gas protection.

So what are the characteristics of argon arc welding?

1. Argon protection can isolate the adverse effects of oxygen, nitrogen, hydrogen, etc. on the arc and the molten pool in the air, reduce the burning of alloy elements, and obtain dense, spatter-free, high-quality welded joints;

Summary: The characteristic is no splash.

2. The arc combustion of argon arc welding is stable, the heat is concentrated, the arc column temperature is high, the welding production efficiency is high, the heat affected zone is narrow, and the weldment has less stress, deformation and crack tendency;

Summary: The characteristic is a small deformation.

3. The electrode loss is small, the arc length is easy to maintain, and there is no flux or coating when welding, so it is easy to realize mechanization and automation; we are Metal Filter Element Wholesale, welcome to consult.