Packaging steel strip process characteristics of progressive die

Packing steel strip process characteristics of progressive die strip die is adopted in advance after heat treatment ( HRC40, 45) Bi by steelskin do die, die is made, don't need to heat treatment, avoid caused by heat treatment of Chinese fir, eliminating the deformation process of correction. Its molding method, have bench after stamping processing, line cutting processing, to bolster plate Kong Chong packaging such as die steel belt. The several kinds of manufacturing process is simple, but probably the high precision mold in a short time. In addition, the concave die hole, stripper plate and plate type, available wire-cutting processing at the same time, this can not only shorten the cycle, but also convenient to assemble. Packaging steel strip convex and concave die of punching die, the clearance value is relaxed, various materials within the thickness is only millimeter, blanking clearance were 0. Within 1 mm; When low precision stamping, also clearance can be amplified to 0. 15 - 0. 2 mm. Using zinc base alloy die punch the packaging steel strip concave die, and should be fixed on the zinc base alloy die, can be made into zinc base alloy die steel strip product packing layer, in order to improve the service life of zinc base alloy die and stamping precision. When using conventional die concave die to the legs, can also be used in the fixed number of blocks on the concave mold packaging steel strip, in turn with the packaging made from steel die, to extend the service life of mould.