Preparation method of composite filtering net of stainless steel net and metal fiber felt
A technology of metal fiber felt and stainless steel mesh, applied in chemical instruments and methods, lamination devices, lamination and other directions, can solve the problems of easy wrinkling, low pressure resistance, shortened service life of fiber felt, etc., and achieve strong bonding force. , high filtration performance, high strength effect
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Embodiment 1
[0014] First wash and dry the 40-mesh stainless steel square hole mesh, cut it according to the required size of the filter mesh to be made, and then arrange the pre-laid stainless steel fiber felt according to the filtration accuracy level, and then place the mesh flat on the fiber felt, Double-sided re-netting: one upper and lower net, and the middle re-netting, add fiber mat to the top and bottom of the net, press the above-mentioned felt net in a two-roll rolling mill, the thickness of the felt net after pressing is: 2.5mm~3mm. Put the pressed felt net into a vacuum furnace and carry out vacuum pressure sintering. The method of pressure is: evenly lay a perforated molybdenum plate with a specification of 250×420×5mm on the uppermost layer of the material. The hole diameter of the molybdenum plate is 5mm, hole spacing is 15mm.
[0015] When sintering the multi-net felt in a vacuum furnace, the required vacuum degree is: 1.0×10 -2 pa, the sintering temperature is between 12...
Embodiment 2
[0017] First wash and dry the 40-mesh stainless steel square hole mesh, cut it according to the required size, and then arrange the pre-laid stainless steel fiber felt according to the filtration accuracy level, and then place the mesh on top of the fiber felt (special structure felt mesh) Composite body: one piece of felt at the top and bottom, adding mesh in the middle, that is, adding fiber felt on the top and bottom of the mesh), put the above felt mesh on a two-roll rolling mill to press, and the thickness of the felt mesh after pressing is: 2.5mm~3mm . Put the pressed felt net into the vacuum furnace, and charge 200 sheets per furnace (specification: 1200×1800mm). , The isolation material is a 40-mesh non-metal mesh with surface treatment. Vacuum pressure sintering is carried out in the following way: On the uppermost layer of the material, a perforated molybdenum plate with a specification of 250×420×5mm is evenly laid, the hole diameter of the molybdenum plate is 5mm,...
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