Displacement device for HVOF (high velocity oxygen fuel) spray coating and application of displacement device

Abstract

The invention discloses a displacement device for HVOF (high velocity oxygen fuel) spray coating. The displacement device comprises a base, wherein a 180-degree horizontal displacement hinge plate isarranged on the base, a vertical and tilting-forward 90-degree displacement hinge backing plate is arranged on the 180-degree horizontal displacement hinge plate, and a fixing device for fixing a spray coating part is arranged on the vertical and tilting-forward 90-degree displacement hinge backing plate; and 180-degree horizontal displacement hinge plate is movably connected with both the base and the vertical and tilting-forward 90-degree displacement hinge backing plate. According to the displacement device for HVOF spray coating, a spray coating position of a narrow-slit petroleum part vertical face finishing one-time spray coating can be changed into a spray coating position suitable for two-time spray coating according to the displacement of the 180-degree horizontal displacement hinge plate and the vertical and tilting-forward 90-degree displacement hinge backing plate, the problem about the spray coating angle of the HVOF spray coating of the narrow-slit petroleum part verticalface is solved very well, and coating quality is guaranteed; and besides, the device is simple to operate and high in production efficiency.

Description

technical field [0001] The invention relates to the field of supersonic flame (referred to as HVOF) spraying, in particular to a displacement device for HVOF spraying and its application. Background technique [0002] At present, the key parts of underground and surface production and service equipment designed by well-known foreign oil service equipment companies generally use thermal spray coating to improve their wear resistance and corrosion resistance. Many key parts of oil service equipment have complex shapes, difficult machining, difficult thermal spraying, and high manufacturing costs. In order to reduce costs and improve efficiency, foreign oil service equipment companies have begun to transfer the production capacity of some components to areas with relatively mature technology and low production costs. [0003] For parts sprayed on the facade of narrow slots, the specified 4 parallel planes need to be sprayed with wear-resistant and corrosion-resistant coatings ...

AI Technical Summary

Problems solved by technology

If the parts cannot be displaced, each plane can only be sprayed once, the spraying angle is about 20°, the quality of the coating is poor, and the spray deposition efficiency is low; if the parts cannot be displaced, each plane is divided into 2 spraying molding, because the spray gun components are limited, the spray gun cannot reach the desired spraying position

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