Metal ceramic anilox roller and manufacturing method thereof

A metal-ceramic and metal-ceramic coating technology, applied in the direction of metal material coating process, coating, printing, etc., can solve the problems of uncontrollability, large limitations, reducing the competitiveness of ceramic anilox roll products, etc., and achieve high toughness. and wear resistance, long service life effect

Inactive Publication Date: 2019-03-29
GUANGDONG INST OF NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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  • Metal ceramic anilox roller and manufacturing method thereof
  • Metal ceramic anilox roller and manufacturing method thereof
  • Metal ceramic anilox roller and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] A method for preparing a metal ceramic anilox roller, which includes:

[0033] Using supersonic flame spraying method to prepare a sufficiently thick cermet coating on the surface of the hollow metal roller;

[0034] Perform mechanical grinding and precision polishing of the cermet coating to obtain a ceramic roller workpiece;

[0035] Using a pulsed solid-state laser, the depth of the mesh is adjusted by changing the laser energy and repeated strikes, and a uniform mesh structure is carved on the surface of the ceramic roller workpiece;

[0036] Polish and clean the mesh structure.

[0037] In detail, cermets contain metal components (mainly Co, Ni, NiCr, etc.), so they have higher toughness than oxide ceramics, lower friction coefficients and higher wear resistance, and are widely used. It is used for cutting tools, drawing dies, punching dies, pots and nuclear reactor materials, especially ceramic alloys based on WC and cobalt as binder have good wear resistance and high stre...

Example Embodiment

[0052] Example 1

[0053] Weigh 5000 grams of WC-14Co powder and add it to the powder feeder. Use supersonic flame spraying process to spray 0.3mm thick coating. After processing to 0.2mm, select a 1.5-inch focusing lens with a focal length of 30mm and engrave 1000lpi The quadrilateral mesh. The cross-section and surface schematic diagram of the mesh structure are as follows figure 1 as well as figure 2 As shown, figure 1 The upper part is a cermet coating with a mesh structure, and the lower part is a metal body. The microstructure and quadrilateral mesh structure of laser engraving WC-14Co are like image 3 with Figure 4 Shown.

Example Embodiment

[0054] Example 2

[0055] Weigh 5000 grams of WC-10Co4Cr powder and add it to the powder feeder. Use supersonic flame spraying process to spray 0.4mm thick coating. After processing to 0.3mm, select a 2.0-inch focusing lens with a focal length of 40mm and engrave a 300lpi Hexagonal mesh. The microstructure and hexagonal mesh structure of laser engraving WC-10Co4Cr are like Figure 5 with Image 6 Shown.

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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...

Claims

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Application Information

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IPC IPC(8): C23C4/129C23C4/06C23C4/18B41F31/10
CPCB41F31/10B41P2231/00C23C4/06C23C4/129C23C4/18
Inventor 李福海周克崧刘敏代明江邓畅光王岳亮马文有赵国瑞董东东
Owner GUANGDONG INST OF NEW MATERIALS
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