A re-repair method for combined transmission generator housing

Abstract

The invention relates to the field of repairing of shells of combined drive generators, and particularly relates to a re-repairing method for a shell of a combined drive generator. The repairing method comprises the following specific steps that (1) shot blasting and paint removal; (2) component de-oiling; (3) saturated steam washing; (4) heating; (5) drying; (6) sealing agent configuration; (7) painting; (8) baking; (9) circular hole sealing; (10) cooling; and (11) test inspection. A steam washing machine is used to wash the components, the movement speed of dirt surface resistant molecules is improved through the steam produced by the high temperature, all kinds of stubborn stains are eliminated by destroying the binding force between the dirt surface resistant molecules, the removing effect is high, the shell of the combined drive generator is repaired by using a repeated hole-sealing process, the shell leakage repair ability is improved, the procurement pressure is reduced, and theequipment guarantee capacity is improved.

Description

technical field [0001] The invention relates to the field of repairing the housing of a combined transmission generator, in particular to a repair method for the housing of a combined transmission generator. Background technique [0002] During the use of the casing of the combined transmission generator in the field, external leakage failures of the casing often occur, and as the use time increases, the leakage of the casing becomes more and more frequent. The casing is the most important part of the group transmission, and once it is scrapped, it means the scrapping of the entire product. The value of group transmission is high, spare parts are in short supply, and the economic loss of scrapping is relatively large, which seriously affects combat readiness training. Domestic repair companies do not have the ability to repair shell leakage, and manufacturers use repair welding to deal with it, but it is not applicable to repaired products. [0003] There are usually two t...

AI Technical Summary

Problems solved by technology

[0004] As the shell as a finished product, because there are many matching dimensions inside, its shape and position tolerance requirements are very high. The shell and internal accessories are matching parts, and the mounting holes at both ends of the shell have high coaxiality requirements. If Repair welding, when preheating at a temperature of 380°C-430°C, the shape and position error of the assembly size of the shell will change greatly, which will seriously affect the mutual positional relationship of the assembly parts inside the shell, causing assembly failure, and there are serious problems. Quality hidden danger

Images