Press roll for paper making machines

Details Press roll for paper making machines Press roll for paper making machines

1987-08-17

1989-01-10

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29130, B21B 2700

Patent

active

047963425

ABSTRACT:
A press roll for a paper machine suitable for use as a substitute for a granite roll includes an inner roll body having a metallic cylindrical exterior to which a coating is applied formed either only of a metallic component or of a mixture of metallic and ceramic components. Where the coating material includes only a metallic component, such a metallic component is chosen so that a separate ceramic component precipitates during the alloying of the material. The coating material is formulated to obtain a surface energy and polarity component thereof which provide the roll surface with suitable web release properties for particular pulp qualities.

REFERENCES:
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patent: 3974555 (1976-08-01), Strohmeier et al.
patent: 4069570 (1978-01-01), Pospisil et al.
patent: 4316769 (1982-02-01), Dahl
patent: 4433032 (1984-02-01), Nakamura et al.
patent: 4484959 (1984-11-01), Boncher et al.
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patent: 4548653 (1985-10-01), Bocquet et al.
patent: 4552620 (1985-11-01), Adams
patent: 4609577 (1986-09-01), Long
patent: 4704776 (1987-11-01), Watanabe et al.

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