Long pipe surface thermal spraying device

Abstract

The invention relates to a long pipe surface thermal spraying device applied to a pipe outside surface thermal spraying protective layer. A track is horizontally fixed on a bracket, a walking trolley is arranged on the track and a thermal spraying system is fixed on the walking trolley. Four to six cylinder-type lifting mechanisms are fixed on a supporting seat at one side of the track; one end of a supporting seat of the cylinder-type lifting mechanism is fixed with a clamping rotation mechanism. Each group of control mechanisms consists of two travel switches, an electric relay and a solenoid valve, and the control mechanisms are fixed on the track. The invention has the advantages of realizing of continuously automatic and efficient thermal spraying on the outside surface of a longer pipe and completely continuous and efficient spraying process, solving the problem of a spraying leakage point caused by the blocking of a bearing support point by using the cylinder-type lifting mechanism and ensuring that the spraying process is complete, continuous and highly-efficient.

Description

technical field [0001] The invention relates to the technical field of spraying protective layers on the outer surface of pipe fittings, in particular to a thermal spraying device for the surface of pipe fittings, and is especially suitable for thermal spraying processing on the outer surface of relatively long pipe fittings. Background technique [0002] Corrosion and wear are the two main forms of damage to metal components. According to the statistics of some industrially developed countries, the annual loss of steel due to corrosion and wear accounts for about 10% of the total steel output, and the amount of loss accounts for about 10% of the total output value of the national economy. 2 to 4%. Thermal spraying technology can significantly improve the corrosion resistance and wear resistance of metal components, obtain better surface protection effects, and have good economic benefits and application values. In recent years, thermal spraying technology has been widely u...

AI Technical Summary

Problems solved by technology

However, the application of longer pipes such as oil pipes and casings is less, mainly because when the pipes are longer, the motion stability will become poor, and it is prone to jumping and swinging, which makes the coating thickness on the same section uneven and seriously affects the surface of the pipe. thermal spray quality

In addition, for the surface at the support point of the pipe to be sprayed, due to the obstruction of the support, the surface is not easy to be sprayed, which will cause spraying leakage or uneven coating, resulting in a decrease in yield

Therefore, at present, most of the surface thermal spraying processing of such long pipe fittings is performed manually or semi-manually, which can only be carried out in small batches, and the production efficiency is low; moreover, the requirements for workers are high, the processing is difficult, and the coating quality is difficult to guarantee.

All of the above have greatly reduced the application prospect and market competitiveness of thermal spray technology on long pipe fittings, and affected the development and promotion of thermal spray technology.

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