Moulding of construction products by vibration and pressure appl

Details Moulding of construction products by vibration and pressure appl Moulding of construction products by vibration and pressure appl

1986-11-07

1989-03-14

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Treatment of material by vibrating, jarring, or agitating...

By reciprocating or vibrating mold

264128, 264314, 264333, 425417, B28B 108, B28B 110, B28B 732

Patent

active

048122734

ABSTRACT:
A method for the manufacture of cored construction products from dry particulate materials including feeding the materials into a vibrating mould so as to bring the same into pre-compacted condition, and subjecting the materials when in such condition to a transverse pressure so as to effect final compaction thereof. After compaction, a free standing surface of the material is impregnated with a setting liquid. The vibration is of such frequency and amplitude as to bring the individual particles into substantially uniform closely spaced disposition, the subsequent application of pressure bringing the material into a compacted state without any substantial re-arrangement or crushing of the particles.

REFERENCES:
patent: 2052818 (1936-09-01), Freyssinet et al.
patent: 2311358 (1943-02-01), Baily
patent: 3770859 (1973-11-01), Bevan
patent: 3833331 (1974-09-01), Springs
patent: 3917781 (1975-11-01), Gabriel et al.
patent: 4119695 (1978-10-01), Asserback
patent: 4690791 (1987-09-01), Edmiston

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