Preparation Technology of Adding Composite Anti-corrosion Layer on Metal Components

Abstract

The invention relates to a preparation process of a composite abrasion-resistant layer on a metal component. The preparation process comprises the steps (1) producing a two-stage combined assembly mold comprising a first-stage mold and a second-stage mold; (2) preparing silicon carbide particles with surfaces coated with thermosetting resin, and adopting the silicon carbide particles as an abrasion-resistant layer shaping filling material of a workpiece; (3) preparing silicon carbide particles with clean surfaces, and adopting the silicon carbide particles with clean surfaces as an abrasion-resistant layer dipping filling material of the workpiece; (4) assembling the first-stage mold, filling the mold with the abrasion-resistant layer shaping filling material, and compacting the abrasion-resistant layer shaping filling material, heating the mold, and solidifying the thermosetting resin; (5) assembling the second-stage mold, filling the second-stage mold with the abrasion-resistant layer dipping filling material, and vibrating and compacting the abrasion-resistant layer dipping filling material; (6) preparing the thermosetting resin into a grouting sizing agent, pouring the grouting sizing agent into holes of the abrasion-resistant layer shaping filling material on the shaped workpiece and gaps of the abrasion-resistant layer dipping filling material; and (7) heating and curing the grouting sizing agent. By adopting the preparation process of the composite abrasion-resistant layer on the metal component, the abrasion resistance is remarkably high.

Description

technical field [0001] The invention belongs to the field of wear-resistant and corrosion-resistant composite materials, and relates to a preparation process for forming a composite wear-resistant layer by adopting a shaping preparation process and a dipping preparation process on a metal member and adding thermosetting resin and silicon carbide particles, especially The invention relates to a production process for bonding silicon carbide particles to metal components by combining a shaping preparation process and a dipping preparation process and using a thermosetting resin to form a wear-resistant and corrosion-resistant layer. Background technique [0002] With the development of industry, it is very necessary to install the anti-wear layer on the key parts of the main equipment in many industries such as thermal power plants, mining mineral processing, coal chemical industry, and petrochemical industry. At present, the methods to solve the problems of wear resistance an...

AI Technical Summary

Problems solved by technology

At present, the methods to solve the problems of wear resistance and corrosion resistance at home and abroad are as follows: 1) All-metal pumps and pipelines have the advantages of high strength, good rigidity and toughness, and the disadvantages of poor wear resistance and corrosion resistance

2) Metal and rubber-lined pumps and pipes have the advantage of good corrosion resistance, but the disadvantage of poor wear resistance

3) Metal-embedded pumps and pipes with ceramic linings have the advantages of excellent wear resistance and corrosion resistance, but the disadvantage is that the joints of ceramic sheets are easily damaged

4) The pumps and pipes that are molded by mixing epoxy resin and silicon carbide particles on metal components have the advantages of excellent wear resistance and corrosion resistance, but the disadvantages are uneven distribution or layering of silicon carbide particles and weak impact resistance

However, if the technical content described in the above-mentioned patent application is used in the production of adding an anti-corrosion layer on a small, simple metal component (such as adding an anti-corrosion layer on a three-way pipe joint), it will be exposed. The process is slightly complicated and the cost has been increased.