D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/10 (2006.01) C22C 38/40 (2006.01) C22C 38/58 (2006.01)
Patent
CA 2584275
ABSTRACT The invention relates to a suction roll shell 9 having a plurality of through holes 7. The shell is made of a stainless ferrite-austenite steel having a micro-structure essentially consisting of 35-65 % by volume of ferrite and 35-65 % by volume of austenite. The steel has a composition containing, among other things, 0.005-0.07 C and 0.15-0.30 N, in % by weight. The invention also relates to a suction roll comprising the inventive suction roll shell and a method of producing a steel product.
L'invention concerne une coquille pour rouleau aspirant (9) dotée d'une pluralité de trous traversants (7). La coquille est en acier inoxydable de ferrite-austénite dont la microstructure comprend essentiellement 35-65 % en volume de ferrite et 35-65 % en volume d'austénite. L'acier contient, entre autres, 0,005-0,07 C et 0,15-0,30 N % en poids. Par ailleurs, l'invention concerne un rouleau aspirant équipé de la coquille pour rouleau aspirant innovante, ainsi qu'un procédé de fabrication d'un produit en acier.
Bergkvist Conny
Johansson Pelle
Liljas Mats
G. Ronald Bell & Associates
Outokumpu Oyj
LandOfFree
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