Influence of Lubricants and drawing speed on Tungsten Carbide Wire Drawing Dies
In order to get the best performance and longest life of the drawing dies and then have the highest-quality drawn products,we must take reasonable choice of the lubricants and drawing speed .
1) Lubricants Selection
You can increase the drawing dies’ life and improve the drawn products’ quality by means of the correct-selection of lubricant.There are many types of lubricants such as the vegetable oil, animal oil, soap and mineral lubricating materials (lime, graphite), etc.The lubricant for Cold-drawing wires is divided into two kinds ,one is dry ,another one is liquid .The dry ones like soap,which is generally used in drawing big-medium diameter wires .On the contrast ,the liquid lubricant such as the soapy water is commonly used to draw small-diameter wires.However if you use the soap powder as the lubricant ,it is ok to take high drawing-speed and comparatively big compressibility .
2) Drawing Speed
The drawing speed has very closed relationship with the drawn material ,and its final-forming size .In high speed drawing processing ,you can cool the drawing die to increase its service life.Generally ,you can cool the die’s sleeve with water to low the mould’s temperature .The mould with comparatively low temperature and good lubricating ,even though it takes high-speed drawing work ,its life is longer than the ones with low speed drawing but high temperature and bad lubricating .
The final speed data of the drawn materials’ ,you have to decide according to the drawing equipment and process materials’ properties .
