Method of producing wet frictional material

Details Method of producing wet frictional material Method of producing wet frictional material

1996-06-07

1998-10-06

Lamb, Brenda A.

Paper making and fiber liberation

Apparatus

Foraminous forming mold for discrete articles

162218, 162387, D21G 700

Patent

active

058172165

ABSTRACT:
In a method of producing a wet frictional material according to the present invention, paper-making stock solution is circulated and stirred between a paper-making tank and a raw-material tank so that the concentration of the paper-making stock solution is kept constant. A paper-making jig and an up/down suction portion are connected to each other and elevated up and lowered down in the paper-making tank so that water is sucked from the stock solution by a suction apparatus in the period of elevating-up and lowering-down to perform paper-making. The paper-making jig and the up/down suction portion may be formed separately so as to be connected to each other. In this case, the method can cope with requirements of products of various sizes.

REFERENCES:
patent: 1838904 (1931-12-01), Chaplin
patent: 1984018 (1934-12-01), Hawley
patent: 2797624 (1957-07-01), Stewart
patent: 3216889 (1965-11-01), Brafford
patent: 3793138 (1974-02-01), Rohrer
patent: 3922191 (1975-11-01), Witt
patent: 4014737 (1977-03-01), Brennan

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