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The typesthe advantagesdisadvantages of the drawing lubricant

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Types of wire drawing lubricant: copper wire drawing lubricant for wire and cable industry has two kinds, namely soluble oil saponification and synthetic lubricant. Soluble soap which is composed of animal and vegetable oils or fatty acid and inorganic alkali (NaOH, KOH) or organic alkali (diethanolamine, triethanolamine) reaction and. Advantages:water soluble soap freshly prepared solutions have better cooling, cleaning and lubrication, low cost, simple process,abundant supply.

Oil saponification disadvantages: along with the time extend its hydrolysis after alkali soluble soap will produce,hydrolysis, pH value of the aqueous solution of up to about 10, alkali will absorb carbon dioxide from the air free liquid soap, chemical reaction with drawing liquid of copper powder, alkali type copper carbonate formation of insolubleprecipitate. In addition, hydrolysis of soluble soap, free fatty acids and water will produce calcium, magnesium andcopper wire drawing produced by forming insoluble calcium, magnesium and copper soap soap soap. The insolublesoaps and carbonate accumulation will affect the cooling and lubrication, lubrication reducing, pollution line mode,blocking die hole. Advantages of saponified oil: water solution is an oil in water emulsion, easy emulsification, easy to use. Because of containing a lot of neutral fat, lubrication, less foam, pH value stability, copper soap reaction.

Synthetic lubricant is to replace the soluble oil saponification with synthetic emulsifier, emulsifying, cleaning anddispersing. The advantages of synthetic lubricants: good emulsifying effect, low foam, good cooling and cleaning.Synthetic lubricant drawback: it still has to absorb carbon dioxide in the air, the generation of basic carbonate, thelubrication is not ideal. Lubrication, cooling effect.

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