Lining alloy for bimetallic cylinders

Details Lining alloy for bimetallic cylinders Lining alloy for bimetallic cylinders

1977-03-30

1978-05-16

Steiner, Arthur J.

Receptacles

Receptacle having flexible, removable inner liner

Means for venting air trapped between the liner and its...

75171, 428668, 428679, B65D 2514, B32B 1518, C22C 110, C22C 3000

Patent

active

040894665

ABSTRACT:
A wear and corrosion resistant alloy for lining cylinders used in extrusion and injection molding machines comprises tantalum carbide admixed with a nickel-cobalt base alloy. The cylinder lining is preferably prepared by placing a quantity of the alloy in the cylinder and capping the ends of the cylinder. The cylinder is then heated above the melting point of the alloy and spun at a high rate of speed to centrifugally coat the inner surface of the cylinder. The cylinder's end caps are then removed and the lining finished to the correct internal diameter and finish by conventional lath and hone means. The tantalum carbide added to the base alloy has an affinity for carbon and tends to reduce the free carbon in the final matrix producing a lining which has desirable hardness and corrosion resistance throughout the thickness of the lining.

REFERENCES:
patent: 3649378 (1972-03-01), Kotval
patent: 3658515 (1972-04-01), Saltzman
patent: 3793012 (1974-02-01), Walter et al.
patent: 3793013 (1974-02-01), Walter et al.
patent: 3965582 (1976-10-01), Bibring et al.

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