Metallurgical apparatus – Having means for contacting a solid metalliferous material... – With means to prevent warping of treated object
Patent
1979-07-12
1980-12-23
Rutledge, L. Dewayne
Metallurgical apparatus
Having means for contacting a solid metalliferous material...
With means to prevent warping of treated object
266128, 266134, C21D 900, C21D 908, C21D 142
Patent
active
042406161
ABSTRACT:
In the heat treatment (quenching treatment, tempering treatment, etc.) of long metallic material, such as, large diameter steel pipe or the like, in order to stabilize the speed of travel of the material through a heat treating zone, i.e., a zone including a heating unit, such as, an induction heating coil or gas burning type heating furnace and a following cooling unit of the type utilizing either one or both of air blast and water cooling, the material is gripped by two cars which are arranged respectively at the entry and delivery ends of the zone and the cars are moved, while supporting the material by a plurality of free rotatable rollers, so as to move the material at a desired speed. In this case, one of the cars is driven and the other car applies a braking force, thus moving the material at the desired speed through the zone.
REFERENCES:
patent: 3189490 (1965-06-01), Scott
patent: 3193270 (1965-07-01), Dewez, Jr. et al.
patent: 3644695 (1972-02-01), Shuey, Jr. et al.
patent: 3731033 (1973-05-01), Ory
patent: 4158758 (1979-06-01), Kunioka et al.
Hirata Ken-ichi
Takahashi Nobuhiro
Nippon Kokan Kabushiki Kaisha
Rutledge L. Dewayne
Skiff Peter K.
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