Patent ID: 6430980
Filing Date: 2002-08-13
Classification: B21C

Abstract:
A method for coating and shaping strand-shaped metallic shaping stock by drawing using lubricants in solid to liquid state comprising the steps of:coating shaping stock with lubricant by a double chamber arrangement comprising a low-pressure lubricant chamber followed by a high-pressure lubricant chamber; and shaping the stock by working drawing dies at the outputs of the chambers; said method further including the steps of: filling the low-pressure lubricant chamber with solid to pasty lubricant by an external lubricant feed and applying a low pressure to the lubricant in the low-pressure lubricant chamber by said lubricant feed; generating a high lubricant pressure in the high-pressure lubricant chamber by the shaping stock which runs into said chamber and which is coated with lubricant in solid to liquid state; wherein a lubricant pressure/lubricant temperature combination in the high-pressure lubricant chamber is adjusted in such a way that the lubricant is in solid to liquid state in the high-pressure lubricant chamber.