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Factors Affecting Pipe Straightness Gauge

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1. Improper adjustment of the straightening frame

Bending phenomenon: The erw steel pipe bends out from the sizing unit and is bent in one direction.


2, Uneven thickness of the coil

Bending phenomenon: The bending phenomenon of the steel pipe is serious, and the bending direction of the steel pipe is not one direction.


3, The temperature of the upper and lower surfaces of the steel pipe is uneven

Bending phenomenon: The steel pipe in production is straight after cutting, but it bends when cooling on the finishing stand, and the overall bending direction of the steel pipe is the same.


4, Insufficient sizing

Bending phenomenon: The steel pipe is straight before the hydrostatic pressure test, but the bending phenomenon occurs after the hydrostatic pressure test, and the bending direction is fixed.


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