Metal ceramic anilox roller and manufacturing method thereof

Abstract

The invention discloses a metal ceramic anilox roller and a manufacturing method thereof and relates to the technical field of anilox roller production. The method comprises the steps that a metal ceramic coating thick enough is prepared on the surface of a hollow metal roller by using a high velocity oxy-fuel method; the metal ceramic coating is mechanically ground and precisely polished to obtain a ceramic roller workpiece; the mesh depth is adjusted by changing the laser energy and adopting repeated impact through a solid laser in a pulse pattern, and uniform meshes are engraved in the surface of the ceramic roller workpiece; and the meshes are polished and cleaned. According to the method, the metal ceramic with higher toughness is adopted to replace oxide ceramic, and the prepared metal ceramic anilox roller can meet the requirements of flexography and roller coating. Meanwhile, the metal ceramic anilox roller has close degree of production flow complexity as ceramic anilox rollers, but the metal ceramic anilox roller has higher toughness and abrasion resistance and longer service life.

Description

technical field [0001] The invention relates to the technical field of anilox roll production, and in particular to a cermet anilox roll and a preparation method thereof. Background technique [0002] Anilox roller, also known as "ink metering roller", is the core component of flexographic printing machine and roll coater, which is responsible for uniformly transferring a certain amount of ink to the printing plate. [0003] The structural feature of the anilox roller is that the surface is evenly distributed with tiny concave holes with a specific shape, which are also called "ink holes". It is these ink holes that play the role of ink storage, ink distribution and quantitative ink transfer in printing. [0004] Anilox rollers can be classified according to their surface materials. There are mainly two kinds of metal anilox rollers and ceramic anilox rollers. The processing technology of anilox rollers includes three basic processes of roller body preprocessing, anilox proc...

AI Technical Summary

Problems solved by technology

[0006] Chinese published patent CN201010123371.0 "Preparation method of a flexo ceramic anilox roller" discloses a method for preparing a ceramic anilox roller in situ by using plasma electrolytic oxidation technology, and points out that the ceramic anilox roller manufactured by ion spraying method has The disadvantage is that the ceramic is brittle and hard, has poor impact resistance, low bonding force between the coating and the substrate, and high porosity of the coating, resulting in poor corrosion resistance. Therefore, a method of micro-arc oxidation is proposed to produce alumina ceramics on the aluminum alloy roller body. , and then use the method of laser engraving to produce 600lpi anilox rollers, but the limitation of the method is that it can only deal with aluminum alloys, and it cannot deal with other metal roller bodies, so the limitation is very large

[0007] Chinese patent application 03118333.6 "A production and repair method of ceramic anilox roll" discloses a production and repair method of ceramic anilox roll, which introduces laser remelting ceramic coating process in order to improve the defects of plasma spray coating, It is expected to reduce the porosity of the coating and improve the bonding. The main process is still the plasma spraying process. Due to the introduction of the laser cladding process, the coating process is more complicated and uncontrollable, which significantly increases the cost of the enterprise and reduces the production of ceramic anilox rollers. competitiveness

Images