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3 4 coil roofing nails

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  • 3 4 coil roofing nails

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    3 4 coil roofing nails 3 4 coil roofing nails

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  • 3 4 coil roofing nails

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    3 4 coil roofing nails 3 4 coil roofing nails

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  • galvanized

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  • barbed

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  • 3.Packaging: moisture-proof paper, woven bag, other packaging can be packed according to customer requirements

    3 4 coil roofing nails

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  • Removal of surface-active substances by activated carbon matting. Or make the bubble unstable according to overworry, these are all reasonable countermeasures; Other strategies should also be used to minimize the amount of surfactant taken in. The introduction of organic matter can make the electroplating process speed drop sharply. Galvanized iron wire blackening can be effectively prevented, such as: the work site to keep dry, reduce and do not use chemicals, operators with clean gloves and so on. In addition, hot dipping zinc factory can be required, after dipping zinc must be passivation treatment, passivation treatment of zinc has a better anti-discoloration effect, can effectively prolong the discoloration time, the combination of the two, discoloration should be able to solve. Galvanized iron wire has good toughness and elasticity, the amount of zinc can reach 300 g/square meter. It has the characteristics of thick galvanized layer and strong corrosion resistance.

    3 4 coil roofing nails

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  • The derusting steel parts are immersed in the melted zinc liquid at about 500℃, so that the surface of the steel member is attached with zinc layer, so as to achieve the purpose of anti-corrosion. The surface of galvanized wire coating can see whether the quality of galvanized wire is good or not. If the strength of zinc attached to the wire is very poor, then this galvanized wire do not buy, because this galvanized wire must be poor galvanized wire.

    3 4 coil roofing nails

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  • Long-term exposure to such impurities will result in transition and gap corrosion. The direct solution to this phenomenon is to strengthen the coating of the material to avoid corrosion. Improve the quality of galvanized iron wire, can use the wire that had plated zinc beforehand to pull out when making galvanized iron wire, won’t appear the phenomenon of bad mechanical properties. The toughness of the wire is 15 to 25 per cent higher than that of the drawn and galvanized wire, and in some cases slightly stronger than that of the polished wire.

    3 4 coil roofing nails

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  • Did not do the adhesion test of powder spraying or fluorocarbon spray on the packaging galvanized wire, but there are two points for reference: one, in the sealed or air circulation environment, non-metallic volatiles can corrosion zinc coating; Second, zinc above 230 degrees (c) will brittle the base metal. After powder spraying and fluorocarbon spraying, it is necessary to bake at a higher temperature and in a sealed environment, causing rapid corrosion of zinc, resulting in loose corrosion film resulting in decreased adhesion of coating, and even leading to brittle situation of steel wire.

    3 4 coil roofing nails

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