Drawing die manufacturing and heat treatment process
Deep drawing mould, can choose Cr12MoV, quenching to 58-62 HRC, then nitriding treatment, die nitriding process is complicated, however, the general factory do bad, did not effect, can't even use, good nitriding treatment, can make the surface hardness of 900-1200 hv, equivalent to 68-72 HRC, can improve the service life many times, but die nitriding to do the best for chongqing ding star nitriding surface treatment co., LTD.Hot die steel H13 quenching to 50-55hrc, nitriding treatment, better than Cr12MoV.