Making molds for continuous casting

Metal treatment – Compositions – Heat treating

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148 127C, C22F 108

Patent

active

044215703

ABSTRACT:
An age-hardening copper alloy is used, alloy components being zirconium, nickel, chromium, cobalt, phosphorus, and beryllium, to make a tubular blank and solution heat-treating same; after a cold-working step, the pre-sized blank is age-hardened at from 400.degree. C. to 600.degree. C. for at least 15 minutes and explosion-formed in order to obtain the desired size, shape, and dimensions.

REFERENCES:
patent: 3170204 (1965-02-01), Tarmann
patent: 3830644 (1974-08-01), Watanabe et al.
patent: 3988176 (1976-10-01), Watanabe et al.
patent: 4179314 (1979-12-01), Wikle

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