Method and device for removing inner surface oxidized iron sheet of steel pipe on line
An iron oxide scale, inner surface technology, applied in workpiece surface treatment equipment, metal processing equipment, metal rolling, etc., can solve the problems of grinding, shot blasting difficulties, overacid corrosion, increase the production cost of steel pipes, etc., to reduce precision. The effect of the whole process and cost increase
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[0027] As shown in the accompanying drawings, a method for removing iron scale on the inner surface of a steel pipe line, it is the 3rd roller table and the 4th roller table between the step-by-step reheating furnace 9 and the high-pressure water descaling box 8 Daojian designed and manufactured a water spray trolley 1 equipped with a water spray device. The water spray trolley 1 is controlled by the push-pull oil cylinder 1-3 of the trolley, and the nozzle 1-1 is controlled by a high-pressure pneumatic stop valve, which is detected by hot metal at the end of the steel pipe. After the detector 4 is detected, the water spray trolley 1 runs, the high-pressure pneumatic stop valve opens, the nozzle 1-1 on the water spray trolley 1 sprays a certain flow of high-pressure water into the inner hole at the end of the steel pipe, and the water spray trolley 1 follows the steel pipe for a certain distance and closes. After the water spraying time is extended by the PLC program control, t...
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