square perforated metal

square perforated metal

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  • Galvanized wire coating rough, passivation film is not bright, bath temperature is too high. If the cathode current density is too high, zinc content in the bath is too high or sodium hydroxide and DPE content is too low; Electroplating solution with solid particles or excessive foreign metal impurities, will lead to such problems. Solution: If the large roll galvanized wire to the above coating is rough, there may be solid particles in the plating solution. If the roughness of the part is severe, the current density may be too high.

    square perforated metal

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    square perforated metal square perforated metal

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  • square perforated metal

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    square perforated metal square perforated metal

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  • square perforated metal

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    square perforated metal square perforated metal

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  • galvanized

    square perforated metal

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  • The key and important parts with tensile strength greater than 1034Mpa should be relieved of stress at 200±10℃ for more than 1 hour before plating, and the carburized or surface hardened parts should be relieved of stress at 140±10℃ for more than 5 hours. The cleaning agent used for cleaning shall have no effect on the binding force of the coating and no corrosion on the substrate. Acid activation Acid activation solution should be able to remove corrosion products and oxide film (skin) on the surface of parts without excessive corrosion on the matrix.

    square perforated metal

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  • 2. When there are channels, ponds, lakes and other natural barriers on the side of the road, there is no need to worry about people and animals entering and illegally occupying the road land.

    square perforated metal

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  • Attention should be paid to line collection and operation. Others shall not get on the train without the monitor’s consent. The wire reel should be put lightly, stacked firmly and neatly, not more than 5 discs. It is forbidden to contact human skin directly with acid and base. When the acid fog exceeds the specified target of the state, timely measures should be taken to control it; otherwise, production is not allowed.

    square perforated metal

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    square perforated metal square perforated metal

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