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In addition to these reasons, we should also pay attention to the tooling and process must be stable, and regular testing should be done to ensure the uniformity of galvanized layer.
drywall screws popping out ceiling...
drywall screws popping out ceiling 【drywall screws popping out ceiling】
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drywall screws popping out ceilingGalvanized steel pipe is divided into hot dip galvanized and electric galvanized. The layer of hot dip galvanized is thick, the cost of electric galvanized is low, and the surface is not very smooth. Used for steel blowing oxygen pipe, generally with small diameter welded steel pipe, specifications from 3/8-2 inches of eight. Made of 08, 10, 15, 20 or 195-Q235 steel strip, in order to prevent corrosion, some should be aluminized.
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
Read MoreTwisting the barbed wire: twisting the barbed wire in the opposite direction of the main wire. That is, it’s not twisted in one direction. This is called the twisted cord.
drywall screws popping out ceiling...
drywall screws popping out ceiling 【drywall screws popping out ceiling】
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drywall screws popping out ceilingHot wire plating adopts zinc-free slag to add hot molten zinc and galvanizing, which avoids the traditional heating process, radiates 1653 hot molten zinc on surface 4102 of zinc liquid surface, and reduces the high temperature oxidation of zinc liquid surface. At the same time, the heating body is in contact with the zinc liquid, and the heat is directly transferred to the zinc liquid. The utilization rate of heat energy can reach more than 90%, and the heat radiation on the zinc liquid surface is reduced.
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
Read Moredrywall screws popping out ceiling
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
Read MoreNo matter what kind of blade you buy, daily maintenance is indispensable, can prepare some good antirust paint and some rust removal spray, spray antirust paint to the blade rope, so not only beautiful and play the effect of rust, can effectively slow down the process of oxidation, extend its life.
drywall screws popping out ceiling...
drywall screws popping out ceiling 【drywall screws popping out ceiling】
Read Moredrywall screws popping out ceiling
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
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drywall screws popping out ceilingIn strict accordance with the multi-pass small compression rate drawing, the total compression rate is 96.48%, reducing the scraping of zinc layer. The whole wire drawing die is made of tungsten steel die and polycrystalline die. The Angle of the working cone of the wire drawing die is 12° ~ 16°, and the length of the sizing belt is 0.15 of the diameter of the wire, so as to ensure that the deformation of the zinc layer is basically synchronous with the steel wire substrate.
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
Read MorePlastic coated electric welding net: PVC plastic coated electric welding net is a kind of tall welding net, plastic coated electric welding net picture on the upper part of the protective barbed net, network cable is galvanized steel wire, plus PVC plastic treatment, in the protection of beautiful at the same time, ensure the firm and durable. Material: low carbon steel wire, PVC plastic coating manufacturing process: steel wire after welding plastic coating, can also be separate electroplating, hot plating and plastic coating. PVC plastic coated electric welding net use: industrial, agricultural, municipal, transportation and other industries of fence, decoration, protection and other facilities. PVC plastic coated electric welding mesh features: good corrosion resistance, strong weather resistance, anti-aging, beautiful and generous. Installation is simple and quick.
drywall screws popping out ceiling...
drywall screws popping out ceiling 【drywall screws popping out ceiling】
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drywall screws popping out ceilingThe application of electric welding net is more widely, at present it has replaced the use of other parts of the wire mesh, the cost of electric welding net is lower, the production speed is very fast, so it is very popular. Welding net galvanized before the need for processing is recrystallization annealing, because the welding net must maintain a no oxide and no other impurities of pure iron active surface, if you can not keep its surface clean will lead to a bad galvanizing effect, galvanized layer and iron material is not closely combined, so this step is necessary.
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drywall screws popping out ceiling 【drywall screws popping out ceiling】
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Hot dip galvanized welding mesh is made of iron wire, processed by precision automatic mechanical technology. The mesh surface is smooth, the structure is strong, and the integrity is strong. Even if the local cutting or local pressure is not relaxed, the hot dip zinc is processed. Hot dip galvanized welding mesh surface white color, thick zinc layer, high zinc content at the solder joint, uniform mesh, flat mesh surface, solder joint tensile resistance, high corrosion resistance. It has the advantages that ordinary barbed wire does not have.
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1, stress relief before plating where the maximum tensile strength is greater than 1034Mpa key and important parts before plating should be at 200±10℃ stress relief for more than 1 hours, carburizing or surface quenching parts should be at 140±10℃ stress relief for more than 5 hours.