Apparatus and capsule for carrying out processes of directed cry

Details Apparatus and capsule for carrying out processes of directed cry Apparatus and capsule for carrying out processes of directed cry

1993-03-29

1995-07-04

Andrews, Melvyn J.

Metallurgical apparatus

With control means responsive to sensed condition

With temperature sensor

266 99, 266160, 266207, 266276, 117901, C22B 408

Patent

active

054293413

ABSTRACT:
The present invention refers to an apparatus and a capsule for carrying out processes of directed crystallization, especially in cosmic space conditions. The apparatus comprises a first compartment forming a multizone furnace having an inner surface divided into heating zones for heating up material pieces to be processed, and a second compartment for receiving capsule holders bearing capsules for receiving the material pieces, the first and second compartments being connected with one another through a cooled neck part and determining together a common closed space, the second compartment includes an upper and a lower annular rims prepared with cutouts for capsule holders, the capsule holders and the rims forming together a magazine of capsules, and revolving manipulating means. The capsule comprises a metallic mantle, a tube type crucible made with a ceramic wall arranged within the metallic mantle, the metallic mantle and crucible being opened from one side, at least one thermoelement and having a respective wire built-in into the ceramic wall and a head part with elements fitting to outer guiding means, the head part including contacting means for forwarding electric signals via the wire to an outer control unit.

REFERENCES:
patent: 4158742 (1979-06-01), Aldrich
patent: 4423515 (1983-12-01), Riegler et al.
patent: 4603730 (1986-05-01), Davis et al.
patent: 4734127 (1988-03-01), Iuchi et al.

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