Drawing is divided into hot drawing and cold drawing, and cold drawing is to forcibly stretch the stainless steel pipe under normal temperature conditions with a tensile stress exceeding the yield point strength of the original stainless steel pipe, so that the stainless steel will undergo plastic deformation to increase the strength of the stainless steel yield point and obtain The desired shape and material saving are for the purpose.

1. Cold drawing effect: the yield strength of steel can be increased by 20% to 30% after cooling, and it also has the functions of rust removal and straightening.

2. Workpieces with extremely large length and extremely small diameter can be manufactured, and the cross-section along the entire length can be guaranteed to be completely consistent

3. The shape and size of the drawn product are accurate, and the surface quality is good. The dimensional accuracy is plus or minus a few hundredths of a millimeter, and the surface properties of the surface roughness reach the mirror surface of the aurora surface.

In terms of safety, always check whether the cold-drawn ground anchor is stable, whether the hoist, signal device, wire rope, fixture, pulley block, etc. are normal, and the slippage of the hoist, the failure of the signal, machinery, and fixture, or the breakage of the wire rope should be ruled out before the cold-drawing operation. safety factors.