Product Description
Working characteristics of screw mold The screw mold is first used to hit the head of the screw mold, and then the screw thread is rubbed out by the screw plate, that is, the tooth plate
The process flow Process: preheating -- heating -- cooling -- cleaning -- tempering -- hardness check -- blackening -- appearance check
According to the threads, the commonly used machine screw thread rolling die can be divided into:
Metric thread (M, MJ)
American thread (UNC, UNF, UNEF, UNR, UNS, UNJC, UNJF)
British Whitworth Thread (BSW, BSF)
British Association Thread (BA)
Trapezoidal thread (30 degree or 29 degree)
Bicycle Thread (BC)
Sewing Machine Thread (SM)
The product is good for adjusting machine, good finish, long life, fast attack speed, high speed steel material, real air quenching and heat treatment, and stable quality