Manufacture of a composite tubular product

Details Manufacture of a composite tubular product Manufacture of a composite tubular product

1982-09-30

1984-12-04

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 58, C21C 702

Patent

active

044862270

ABSTRACT:
For the purpose of introducing an additive into a molten metal bath, a reactive powder is enclosed in a tubular sleeve composed of a metal compatible with the bath. The cross-section of the sleeve is reduced after filling to compact the powder while leaving it porous. The filled sleeve can be formed by profiling a metal strip to a cup-shaped cross-section, metering the powder into the cup-shaped profile, closing the edges of the strip together to enclose the powder, forming the edges to hook together and crimping the hooked edges.

REFERENCES:
patent: 4126446 (1978-11-01), Knorre
patent: 4364770 (1982-12-01), Douchy

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