Method and device for plasma cutting of non-metallic materials

Details Method and device for plasma cutting of non-metallic materials Method and device for plasma cutting of non-metallic materials

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.

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