chain link fence with barbed wire

chain link fence with barbed wire

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chain link fence with barbed wire chain link fence with barbed wire

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  • Large roll galvanized wire phosphating film is dark gray to black gray, the thickness is generally 5-20μm, has better corrosion resistance in the atmosphere. Membrane is a microporous structure, strong adsorption ability to paint, such as used as paint bottom, corrosion resistance can be further advanced. Metal oxidation treatment: Add steel products to NaOH and NaNO2 mixed solution, heating treatment, the surface can form a layer of thickness of about 0.5-1.5μm blue oxide film, in order to reach the purpose of steel corrosion prevention, this process is called blue treatment, referred to as blue.

    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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  • chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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  • Generally, galvanized wire used for welding is required to have a certain hardness. After acceptance of galvanized wire, the first thing to do is to feel the hand, and the other thing is to test on the machine. Because the average user does not have testing equipment, it is also very inconvenient to test on the machine. Use a micrometer to measure the diameter of galvanized wire evenly, and keep it about 0.02mm above and below the contract signing standard, with neat appearance, no leakage plating and no mess.

    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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  • The main difference is carbon content. Iron has a carbon content of 2.11 percent or more, while steel has a carbon content of 2.11 percent or less. Iron-carbon alloys with carbon content of more than 2.11% are cast iron (pig iron), which are basically not malleable and cannot be drawn into wire. Secondly, the content of impurities is different, and the content of harmful impurities such as sulfur and phosphorus in steel is smaller. Wire general color key, wire color light point, white point.

    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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  • Especially after passivation of galvanized layer, the surface of the oxide layer is thicker and compact, itself has high oxidation resistance. On the other hand, when the surface of the galvanized layer is damaged, exposing the inner iron matrix, because zinc is more active than iron, zinc will bear the role of sacrificing zinc anode, zinc will be oxidized before iron, so as to protect the iron layer will not be damaged.

    chain link fence with barbed wire

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    chain link fence with barbed wire chain link fence with barbed wire

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