Crepe paper having operational edge (formed by wear resistant hard material) on dry cylinder for removing rotating paper sheet on the cylinder, where the hard material cover extends within accumulating range of the edge

摘要

The hard material cover depth is greater than or equal to 500 mu m in accumulating area (8) and in an assembly area total depth of about 800-1200 mu m. The edge covers with metal profile body. The edge is formed at the area turned to the drying cylinder (3). The edge has assembly surface area (14) of inclined end surface area related to the front. The cover is formed up to the end of the accumulating surface. The covering extends from scraper base area to the accumulating area in triangular shape. The cover has alumina, chromium oxide, zirconium oxide, tungsten carbide, chromium carbide, zirconium carbide, tantalum carbide and/or titanium carbide. The cover has thermally injected material, preferably formed by physical gas phase separation, chemical gas phases separation or high-speed flame syringe. The end face is bent (related to the front accumulating surface, around a difference angle of inclination) to 15[deg]. The metal profile body comprises spring steel.