Super hard alloy dies for extruding honeycomb structures

Details Super hard alloy dies for extruding honeycomb structures Super hard alloy dies for extruding honeycomb structures

1987-08-11

1989-04-11

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Means providing a shaping orifice

26417712, 2642091, 2642098, 425462, 425464, B29C 4712

Patent

active

048201464

ABSTRACT:
A honeycomb structure forming die has a forming section provided with at least forming channels and a plurality of opening holes. The forming channels have a sectional shape conforming to that of honeycomb structural bodies to be extruded by the die, and have a given depth from a front face of the die toward a rear face thereof. The opening holes are independently formed from the die rear face toward the die front face and communicate with the forming channels. The honeycomb structure forming die is further provided with communicating holes which communicate with the opening holes of the forming section.

REFERENCES:
patent: 4118456 (1978-10-01), Blanding et al.
patent: 4167386 (1979-09-01), Mallay
patent: 4373895 (1983-02-01), Yamamoto et al.
patent: 4465454 (1984-08-01), Duerr et al.
patent: 4653996 (1987-03-01), Ozaki et al.
patent: 4681062 (1987-07-01), Shibata et al.
patent: 4687433 (1987-08-01), Ozaki et al.

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