Electric heating – Metal heating – By arc
Patent
1980-12-09
1987-09-01
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PH, 219121PR, 83 16, 264 22, B23K 900
Patent
active
046910905
ABSTRACT:
An improved method and arrangement for cutting non-metallic materials by means of a plasma arc which is formed between a plasma torch and a confronting non-melting electrode-anode. The arrangement includes an arrangement for rotating the electrode-anode during and/or prior to cutting and an arrangement for forcibly elongating the plasma arc prior to cutting by increasing the distance between the plasma torch and electrode-anode prior to cutting. The arrangement includes a support for jointly supporting the plasma torch and electrode-anode. This support is adapted to be partly or completely moved relative to the non-metallic material to be cut. Conduits for a cooling medium are incorporated in the support and the non-melting electrode-anode.
REFERENCES:
patent: 3816087 (1974-06-01), Van Duuren et al.
patent: 3940641 (1976-02-01), Dooley
patent: 3944778 (1976-03-01), Bykhovsky et al.
patent: 4118618 (1978-10-01), Gauthier et al.
Beleov Marin H.
Dimitrov Dimieter A.
Garlanov Dimo T.
Hlbearov Vladimir P.
Nikov Nikolay Y.
NPK za Kontrolno Zavarachni Raboti
Paschall M. H.
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