Erosion-resistant repair coating material capable of being quickly cured at room temperature

Abstract

The invention relates to the field of coating materials, particularly to a scouring-resistant repair coating material capable of being quickly cured at room temperature. According to the invention, the coating material is a two-component coating material, wherein the first component is composed of an epoxy resin, a scouring-resistant filler and a solvent, the second component is composed of a curing agent and an accelerant, the surface drying time of a coating layer prepared through mixed use is within 30 min, the hard drying time is within 2 h, the stacking time is within 6 h, the normal-temperature curing time is within 3 d, and the hardness of a coating layer swing rod is 0.8 or above. According to the invention, room-temperature rapid curing can be realized, waiting time is reduced, arapid repairing effect is achieved, and the scouring resistance requirement of an original coating is met.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an erosion-resistant repair coating capable of rapid curing at room temperature. [0002] technical background [0003] Erosion-resistant coating refers to a coating that can resist gas, liquid, solid or multi-phase coupling erosion. It is widely used on steam turbines, turbines and compressor blades. After the engine has been in service for a period of time, the blades will have different degrees of erosion damage. , At this time, it is necessary to use erosion-resistant repair paint for repair and maintenance. At present, the drying time of the existing erosion-resistant repair paint is long. If the workpiece needs to be transferred to another place for the next step, it will take a long time to wait. In the repair process, most of the workpieces are large-sized workpieces, and the heating and curing process cannot meet the conditions. Therefore, the drying time and room temperature curi...

AI Technical Summary

Problems solved by technology

[0003] Erosion-resistant coating refers to a coating that can resist gas, liquid, solid or multi-phase coupling erosion. It is widely used on steam turbines, turbines and compressor blades. After the engine has been in service for a period of time, the blades will have different degrees of erosion damage. , At this time, it is necessary to use erosion-resistant repair paint for repair and maintenance. At present, the drying time of the existing erosion-resistant repair paint is long. If the workpiece needs to be transferred to another place for the next step, it will take a long time to wait. In the repair process, most of the workpieces are large-sized workpieces, and the heating and curing process cannot meet the conditions. Therefore, the drying time and room temperature curing time of the coating seriously affect the efficiency of field repair and maintenance.

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