Shot Blasting Machine: Shot blasting treatment is used to remove contaminants, oxide scales, welding slags, and other impurities from the inner wall of steel pipes. This process also reduces internal surface stress on the steel pipe. By doing so, it effectively enhances the service life of steel pipes, minimizes internal corrosion, and thereby improves both the internal and external quality of the steel pipes.
Medium-Frequency Heating: This provides the workpiece with the necessary temperature conditions to enable the powder to adhere better to the inner surface of the steel pipe.
Powder Absorption Device: Through a pair of internal powder application mechanisms, powder is blown in from one side and absorbed from the other, causing the powder to adhere to the inner wall of the steel pipe during its flow. This achieves internal wall corrosion protection.
Spraying Device: When air flows into the cavity through the nozzle, a vacuum is created within the cavity (see the diagram below). The vacuum in the cavity draws the powder into the cavity through a powder suction tube, creating an air-powder mixture. The forward velocity at the nozzle outlet propels the powder into the powder tube and spray gun. The air and powder mix together and are delivered to the spray gun for spraying through the powder tube.
Curing Oven: Utilizing the heat generated by the burner, hot air is circulated within the pipeline to achieve a stable high-temperature atmosphere within the oven. This heats both the coating and the pipe body.
