Method for the manufacture of rolls or cylinders of a paper mach

Details Method for the manufacture of rolls or cylinders of a paper mach Method for the manufacture of rolls or cylinders of a paper mach

1991-04-26

1992-08-25

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Roller making

298953, 29124, 29132, B21B 3108

Patent

active

051407493

ABSTRACT:
A method for the manufacture of the cylindrical mantle (10) of the rolls or cylinders of a paper machine out of a corrosion-proof metal or alloy material, particularly refined steel, comprises cutting oblong plate blanks (20A) of a length equal to the total length of the roll mantle to be manufactured. The plate blanks (20A ) are machined or bent to mantle portions (20) of a cross-sectional shape equal to a part of a circular ring. Out of the mantle portions (20), the cylindrical mantle of a roll or cylinder is assembled by joining the mantle portions (20) together by means of axial welding joints (14) prepared by electron-beam welding performed in the vacuum chamber of an electron-beam aparatus by using a number of mantle portions (20) per one roll mantle (10). A roll or cylinder manufactured by means of the method is also described.

REFERENCES:
patent: 3029504 (1962-04-01), Nielsen
patent: 3186063 (1965-06-01), Dopp
patent: 3221536 (1965-12-01), Seulen et al.
patent: 4176270 (1979-11-01), Sailas

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