Apparatus for the continuous hardening of pump casings

Details Apparatus for the continuous hardening of pump casings Apparatus for the continuous hardening of pump casings

1980-03-26

1981-11-03

Skiff, Peter K.

Metallurgical apparatus

Having means for contacting a solid metalliferous material...

With heating means, e.g., flame contact

266 61, 266261, C21D 108, C21D 908, B23K 710

Patent

active

042981891

ABSTRACT:
The invention relates to an apparatus for the continuous hardening of pump casings by means of flame hardening, with or without modifications to the core characteristics. As a result the life of the thus treated pump casing is considerably increased, even if it is exposed to a high degree of wear. This is achieved in that the horizontally positioned pump casing is moved past the flame hardening apparatus about a vertical axis and is simultaneously moved out of the horizontal position in such a way that the cooling water is removed over the already hardened inner wall surface.

REFERENCES:
patent: 2318145 (1943-05-01), Emery et al.
patent: 2321645 (1943-06-01), Bishop et al.
patent: 3268705 (1966-08-01), Inoue
patent: 3385583 (1968-05-01), Jablonski
patent: 3627973 (1971-12-01), Smith
patent: 3887328 (1975-06-01), Maddock
patent: 4030711 (1977-06-01), Siller
patent: 4165245 (1979-08-01), Ludwig

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