The diamond drawing die itself has the characteristics of hard and brittle. If it is used for the reduction of the large face shrinkage, it is easy to cause the die to withstand the stress 

and the caracking. Therefore, according to the mechanical properties of the wire, choose the right face shrinkage rate for the drawing. The stainless steel wire is drawn by a diamond

mold, and the single-face shrinkage rate is generally not more than 20%.

During the long-term use of the wire drawing die, the mold wall is strongly rubbed and washed by the metal wire, which inevitably causes wear phenomenon. The most common is the 

occurrence of an annular groove (dent) at the entrance of the wire at the working area. The appearance of the drawing die ring groove exacerbates the wear of the die hole, because

the small core material of the core material which is peeled off due to looseness on the ring groove is brought into the die hole working area and the sizing area by the metal wire, plays 

the role of the abrasive, and enters The wire of the die hole aggravates the wear of the die hole like a grinding pin. If it is not replaced in time for repair, the ring groove will continue to 

accelerate and expand, making the repair more difficult, and it is even possible to crack at the deeper part of the annular groove, so that the mold is completely broken and scrapped.