General type press forming knife-mould made of plain, soft and t

Details General type press forming knife-mould made of plain, soft and t General type press forming knife-mould made of plain, soft and t

1998-06-17

1999-08-17

Bell, Janyce

Coating processes

Mold coating

Metal mold

427133, 427290, 427305, B05D 310

Patent

active

059391359

ABSTRACT:
A method of manufacturing a general type press forming knife-mould made of plain, soft and thin material, being comprised of selecting a medium, low carbon steel plate as a base whereon a knife edge having a desired contour is formed by shaping milling, then the knife edge or the knife edge together with the milled base being placed into a plating tank for hard chromium plating to increase hardness of the knife edge to Rockwell hardness 70 degrees; thereby, cost for material selection and cost of production of the knife-mould can be lowered, the life of use of the knife-mould can be prolonged, and the knife-mould can get a rust-proof effect by the method and is suitable for press forming of plain papers, card boards or plastic plates etc. on a knife-mould mounting machine.

REFERENCES:
patent: 4404232 (1983-09-01), Evertz

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