Casting gap repairing device

Abstract

The invention provides a casting gap repairing device. The casting gap repairing device comprises a closed container, wherein the closed container is respectively communicated with a penetrating fluid container and a cleaning water container; a penetrating fluid inlet and outlet valve is arranged between the closed container and the penetrating fluid container, and a water inlet and outlet valve is arranged between the closed container and the cleaning water container. The casting gap repairing device comprises an air pipe, a carbon dioxide pipe, a pressure increasing pipe and a pressure reducing pipe, wherein an air ventilation valve is arranged on the air pipe; a carbon dioxide inlet valve is arranged on the carbon dioxide pipe; a pressure increasing valve is arranged on the pressure increasing pipe; a negative pressure valve is arranged on the pressure reducing pipe. According to the casting gap repairing device, before a water-soluble sodium silicate repairing liquid is charged to the closed container, the closed container is vacuumized, so that the diffusion velocity of charged water-soluble sodium silicate solution molecules is multiplied, and the diffusion time is greatly shortened; furthermore, gaps in a casting are in a vacuum suction state, so that deep holes and tiny air holes in the casting can be full of water-soluble sodium silicate quickly and completely; in the closed container, the carbon dioxide and the water-soluble sodium silicate fully react to finally generate silicon dioxide to accumulate in the air holes of the casting, so that a hardening repair function is achieved.

Description

technical field [0001] The invention relates to a repairing device, in particular to a casting gap repairing device. Background technique [0002] At present, known casting repairs include welding repairs, rubber repairs, etc. Welding repair is to repair the surface of the casting by means of high-temperature melting metal produced by electric welding or oxyacetylene flame, which will generate thermal pressure, and the fatigue strength of the repaired part will become lower; glue repair is to apply casting repair on the surface of the casting The glue, through the reaction and hardening of the binary glue within a certain period of time after mixing, achieves the purpose of repairing. Above-mentioned two kinds of methods can only mend the shallow hole of casting surface, even if the deep hole of casting surface has been repaired, its inside is still hollow, and the intensity of its casting itself has not obtained any strengthening. It is even more helpless for tiny pores (...

AI Technical Summary

Problems solved by technology

It is even more helpless for tiny pores (nano-scale pores), because the tiny pores cannot be seen by the naked eye when artificially repaired, and at the same time, glue or molten metal liquid cannot be artificially implanted into deeper pores. For large hollows, small gaps are connected To the pores on the surface of the casting, the above method can not achieve the ideal repair effect at all, and it is difficult to cure the symptoms

The methods of welding and glue repairing castings, t

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