Method of lining inner wall surfaces of hollow articles

Details Method of lining inner wall surfaces of hollow articles Method of lining inner wall surfaces of hollow articles

1981-03-17

1983-03-29

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Shaping by direct application of fluent pressure

29447, 29454, 29523, 138140, B23P 1700

Patent

active

043778941

ABSTRACT:
The inner surface of a hollow article of special shape such as a pipe elbow or bellows is lined with a tightly fitted protective lining material by the steps of emplacing the lining material within the hollow article to confront the inner surface thereof, causing the temperature of the hollow article to be higher than that of the lining material, applying an expanding force to the lining material thereby to cause it to undergo plastic expansion together with the hollow article, removing the expanding force, and causing the temperature of the hollow structure to become lower than that of the lining material thereby to produce a tight fit therebetween due to interference.

REFERENCES:
patent: 1955728 (1934-04-01), Allen et al.
patent: 1980156 (1934-11-01), Emrick
patent: 2337247 (1943-12-01), Kepler
patent: 2435904 (1948-02-01), Robaus
patent: 2444192 (1948-06-01), Giesler
patent: 2695446 (1954-11-01), Meyer
patent: 2986847 (1961-06-01), Sato
patent: 3064344 (1962-11-01), Arne
patent: 3068562 (1962-12-01), Long

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