| Coater Blade is the special cutter used to make high grade coated artpaper and white board paper in paper industry, is the very important and key component for use with Coater Machines. Steel Blades were quick wear, short life, and the efficiency is low in use process, is replaced slowly by new Ceramic Coating Blades. But domestic Ceramic Coating Blades can not be produced in large quantities, affected by foreign enterprise monopoly bondage and long-term dependence on imports, finally lead to high production costs. The development of new Ceramic Coating Blades is benefit for saving paper production cost, improving production efficiency and economic benefit, breaking international monopoly, revitalizing domestic papermaking industry, realizing independent intellectual property rights.In this paper, based on the research of traditional Steel Blade and new Ceramic Coatings Blade, AT13 micron and nano agglomerated powder were choosed as praying feeding. AT13 Micron and Nano Composite Ceramic Coating Blades according with geometrical tolerance requirement were obtained. Spraying technology parameters and process specification were optimal designed, technical problems of workpieces temperature increase too fast and easy heat distortion when preparation were solved through orthogonal experiment method, Ceramic Blades surface precision grinding test and design of precision grinding special transmission device were successfully completed, also nanostructured ceramic coatings precision grinding process was explored,grinding theories was enriched.The research of coating organization structure and component distribution characteristics were finished by SEM, EPMA,TEM, and XRD such modern analysis methods by means of comparing AT13 conventional micron ceramic coating. The porocity, the bond strength, the residual stress distribution, microhardness and the abrasive wear resistance were also tested and analysed, Ceramic Coating Blade precision grinding test also be completed. Results showed that:nanostructure ceramic coating organization more uniform, microhardness higher, more wear-resisting and spraying effect better than micron ceramic coating, performance of nano composite ceramic coating blade more superior; the key technical indicators of such blade has reached the basic requirements of practical application. |
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