Method for the fabrication of tube products

Metal founding – Process – Shaping liquid metal against a forming surface

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164114, B22D 2300

Patent

active

040057410

ABSTRACT:
A method characterized in that the material for a tube product is a Thermit mixture in powder form incorporating at least one metal oxide and its reducer, wherein the mixture is ignited while a cylindrical part is set spinning, which is continued until a liquid melt of the mixture is separated into a metal layer and a layer of corundum which eventually crystallize so that a twin-layer tube product is formed. The invention suggests a number of additional, optional method steps.

REFERENCES:
patent: 1982762 (1934-12-01), Russell et al.
patent: 3324933 (1967-06-01), Shewmon

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