Electric heating – Metal heating – By arc
Patent
1985-09-25
1987-03-10
Paschall, M. H.
Electric heating
Metal heating
By arc
219121PN, 219 617, B23K 1500
Patent
active
046492585
ABSTRACT:
The service life of torches used for water injection plasma arc cutting and like water cooled devices is increased by treating cooling and injection water of high dissolved solids content so as to lower the dissolved solids content of the water until its Ryznar Stability Index is in the range of about 5.5 to about 7.5.
REFERENCES:
patent: 3965027 (1965-06-01), Boffardi et al.
patent: 4351796 (1982-09-01), Marshall
patent: 4455470 (1984-06-01), Klein et al.
patent: 4472283 (1984-09-01), Brooks
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