Drawing material is different, in fact, the chemical composition of drawn metal is different. From the perspective of drawing steel, different heat treatment methods, the structure is different, then the material performance is different, it should belong to the different material.
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| dry wire drawing lubricants |
Drawing non-ferrous metal wire, aluminum wire, the use of oil-based lubricant; pull low-carbon steel wire can be used lime soap; pull high-carbon steel wire, you must use hard fatty acid soap-based, add the appropriate additives Lubricant; dry drawing, you must use powder drawing powder, wet drawing must use emulsions or oil. In the rough, the specifications pull, the general use of dry lubricants; small size, the choice of wet lubricant.
Different chemical composition of the material, lubricant and metal after the role of the product is also different. When the copper wire is drawn, the lubricating film may contain copper (copper soap) component of hard fatty acid. When pulling the iron-based alloy steel wire, the lubricating film may contain hard iron (iron soap).
When drawing different materials, the composition of the lubricant is not the same. Such as drawing copper or aluminum wire, due to the nature of the metal, often after drawing, the wire surface discoloration, so pull the composition of the lubricant should be: mineral oil + oil agent + extreme pressure additives + to prevent Color change additive. For the drawing of ferrous metal ordinary hard wire does not exist such a problem.
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