coil nails china

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  • Carbon spring steel wire is made of high carbon and high quality carbon structural steel or carbon tool steel wire rod, and its chemical composition, gas content and non-metallic inclusion must be strictly controlled according to the use of the spring. In order to reduce the surface defects and decarbonization layer, the billet produced wire rod should be ground on the surface and peeled when necessary.

    coil nails china

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  • In order to pack and bind galvanized wire in the surface of the sedimentary layer to local removal of surface film, surface inclusion and other defects can be found and treated by conventional technology; Excess foam is formed when soap and surfactants such as saponified fats are brought into the tank. Moderate rates of foam formation may be harmless. Small, homogeneous particles of large denier present in the bath can stabilize the foam layer. Use activated carbon mat to remove surface active substance. Or through filtration to make the foam is not too stable, which are effective measures; Other measures should also be taken to reduce the amount of surfactant introduced. The electroplating speed can be obviously reduced by the addition of organic matter. Although chemical formulations facilitate high deposition rates, the deposition of organic matter does not meet the requirements of coating thickness, so activated carbon can be used to treat the bath.

    coil nails china

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  • Annealed wire is a kind of soft iron wire made of low carbon steel by cold drawing, heating, constant temperature and heat preservation. The composition of the wire varies according to its use. It contains iron, cobalt, nickel, copper, carbon, zinc, and other elements. The hot metal billet is rolled into 6.5mm thick steel bar, that is, the wire rod, and then it is put into the wire drawing device to draw the wire of different diameter, and gradually reduce the aperture of the drawing disk, cooling, annealing, plating and other processing technology to make a variety of different specifications of the wire.

    coil nails china

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    coil nails china coil nails china

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  • coil nails china

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    coil nails china coil nails china

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