EFFICIENT PUNCHEONS OF PLASTIC MOLDING TOOL FOR DIES AND MOLDS Russian patent published in 2020 - IPC B21D22/02 B29C33/42 B22D27/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of steel equipment for casting of plastics. Disclosed is a puncheon for equipment for casting of plastics, intended for use together with tooling matrix, at that, punch has the following composition, wt%: 0.25–0.55 of carbon, 0.70–1.50 of manganese, silicon maximum 0.80, 1.40–2.00 of chromium, 0.10–0.55 of molybdenum, maximum 0.040 of aluminum, maximum 0.025 of phosphorus, maximum 0.20 of sulfur, balance – iron and random impurities.

EFFECT: invention enables to obtain material for dies and molds, having different composition for matrices and puncheon set of equipment, which enable to produce end products of high quality at low cost.

9 cl, 5 dwg