Method and machine for expanding tubes in a tube wall

Details Method and machine for expanding tubes in a tube wall Method and machine for expanding tubes in a tube wall

1978-06-22

1980-12-16

Thurlow, Jeffery R.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

291573R, 29523, 165173, 264 405, 264248, 264269, 264310, 2853824, B21D 3906, B29C 2712

Patent

active

042397138

ABSTRACT:
A method of assembling tubular heat exchangers and particularly of expanding tubes in the tube walls of various heat exchangers and steam generators in the petrochemical, gas-processing, chemical, power, metallurgical and shipbuilding industries including the manufacture of nuclear power plants for ships, of nuclear power stations and related products. According to the method the measuring of a force parameter or variable is effected simultaneously with the measuring of a linear parameter or variable of the expanding successively at three areas, viz. the area of elastic deformation of the tube, the area of plastic deformation of the tube up to the engagement of the tube with the surface of the opening in the tube wall, and the area of elastic deformation of the tube wall.

REFERENCES:
patent: 2735698 (1956-02-01), Brinen
patent: 3205289 (1965-09-01), Carpenter
patent: 3220602 (1965-11-01), Ficker
patent: 3467180 (1969-09-01), Pensotti
patent: 3991150 (1976-11-01), De Putter

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