Before drawing in order to reduce the friction coefficient, improve the lubrication effect, to achieve the purpose of normal drawing, must remove the oxide surface of the wire. Especially drawn black metal, medium and high carbon steel, stainless steel, alloy steel and so on. Therefore, the drawing of the front wire to prepare the process involves removing both the surface oxide and the subsequent lubrication coating to handle the two contents.
Drawing steel wire and its alloy wire, remove the surface of iron oxide wire surface there are two ways: chemical pickling and mechanical addition to iron oxide skin method.
Pickling method to iron oxide skin immediately after the lubrication carrier treatment; mechanical method to iron oxide skin, and some directly to the drawing, and some then physical coating after drawing.
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| Dry Wire Drawing Lubricants |
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