Method of heating of at least two elongated tubular metallic obj

Details Method of heating of at least two elongated tubular metallic obj Method of heating of at least two elongated tubular metallic obj

1977-01-10

1979-04-03

Dean, R.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148144, 148150, 148153, 148154, 148156, 432 11, C21D 914

Patent

active

041475690

ABSTRACT:
A process for heating at least two metal pipes wherein each pipe is individually preheated in response to sensors detecting its initial temperature and wall thickness. The pipe then passes through a continuous heater which applies an equal amount of energy to each portion of the pipe, after which each pipe emerges having a predetermined temperature independent of both its initial temperature and the wall thickness.

REFERENCES:
patent: 1959344 (1934-05-01), Coberly
patent: 3915763 (1975-10-01), Jennings et al.

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