Refining element for refining e.g. paper fiber, has blades or teeth fixed on plate, where element is made from sheet that is issued from rolling equipment and is cut according to desired shape of element

摘要

The element has a set of projected blades or teeth (5) on an active surface. The blades or teeth are oriented with each other within a zone area (6) of the active surface in parallel manner. The blades or teeth are fixed on a movable or fixed disc plate (1) of one of a set of active parts of the element. The element is made of a sheet that is issued from rolling equipment and is cut based on the desired shape of the element, where the sheet is made of steel such as stainless steel. A circular crown (3) is coaxial with a part of a spacer (2) and a part of the plate, and is made from the sheet.