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Article | REF: M825 V1

Foundry and casting of titanium and titanium alloys

Author: Georges BROIHANNE

Publication date: October 10, 1995

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2. Merger

2.1 Electron bombardment melting

A copper crucible cooled externally by circulating water is used (figure 3 ). This crucible contains a block of titanium or titanium alloy, which is bombarded by a rotating electron beam of 50 to 1,000 kW under a high vacuum of the order of 10 -2 Pa.

Under these conditions, the upper part of the block is melted and heated to between 1,800 and 2,000°C.

However, the crucible is only in contact with the solid part of the metal block, and this solid-state contact between the cooled crucible and the titanium does not give rise to a chemical reaction.

When...

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