METHOD FOR MANUFACTURING A ROLL AND A ROLL FOR FIBRE-WEB MACHINE

摘要

The invention relates to a method for manufacturing a roll (10) intended for processing a fibre web and a roll (10) a cylindrical roll body (11) of which is constituted by joining together by a joint/joints (12) at least two metallic annular roll pieces (101, 102, 103). Said annular roll piece comprises a centre hole (13) or is without a centre hole and the roll piece comprises required channels such as flow channels (14) or is without said channels. After joining, in addition, the roll body (11) of the roll (10) is thermally treated, into the roll body (11) are constituted required channels, such as flow channels, by machining, and a shell surface (1 Ia) is surface-hardened or coated in the hardness of above 500 HV.