Crepe scraper for scraping paper web i.e. tissue web, from drying cylinder in tissue machine, has two ceramic layers arranged one above other at working edge and comprising wear-resistant, hard and less hard ceramic materials, respectively

摘要

#CMT# #/CMT# The scraper (1) has a blade-shaped base body (3) made of metal i.e. steel, and comprising a working edge (2) placed against a drying cylinder. The working edge is covered by a hard material layer. The base body comprises two ceramic layers (4, 5), which are arranged one above the other at the working edge. One ceramic layer comprises wear-resistant hard ceramic material and another ceramic layer comprises wear-resistant, less hard ceramic material. The hardnesses of the former and the latter ceramic layers are in ranges of 900-1250 HVO3 and 500-800 HVO3, respectively. #CMT#USE : #/CMT# Crepe scraper for scraping a paper web i.e. tissue web, from a drying cylinder in a tissue machine. #CMT#ADVANTAGE : #/CMT# The ceramic layers are arranged one above the other at the working edge and respectively comprise wear-resistant hard ceramic material and wear-resistant, less hard ceramic material, so that short run-time is achieved over long service life of the scraper, and the tissue web is scraped from the drying cylinder at high quality. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a cross-sectional view of an upper part of a crepe scraper when utilized in a tissue machine. 1 : Crepe scraper 2 : Working edge 3 : Blade-shaped base body 4, 5 : Ceramic layers.