04-08-2010 дата публикации
Номер: CN0101791634A
Принадлежит:
The invention relates to a cold-drawing die, and can cold-draw and draw an altitude wire rod into a hemp flower-shaped reinforcing steel bar. The cold-drawing die comprises a drawing die sleeve and a drawing die; the drawing sleeve is provided with a drawing die groove and a cone-shaped discharge hole communicated with the drawing die groove; the drawing die groove is in interference fit with the drawing die internally; the drawing die is provided with a drawing die hole; the drawing die hole is provided with a transition section, a sizing section and a guide section of talcum powder from the inlet to the outlet; the transition section is a flared arc plane, can prevent the altitude wire rod from rubbing to burn out the surface of the drawing die because of the shortage of the talcum powder; the sizing section is a hemp flower-shaped arc plane; and the guide section of the talcum powder is a flared arc plane, and the guide section of the talcum powder is externally provided with a discharge ...
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