Perforation is the first process and one of the most important deformation processes of hot-rolled seamless steel pipe.
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The tube rolling process is the main process to determine the wall thickness of the seamless steel pipe, and its function is to reduce the wall of the perforated capillary. The main defects are: uneven wall thickness of the waste pipe, surface cracks, pits, abrasions, rolling, puncturing (pulling) and so on.
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The geometric size of the steel pipe is out of tolerance, which mainly refers to the diameter, wall thickness or ovality of the steel pipe after the specified (reduced) diameter does not meet the size and deviation requirements specified in the relevant standards.
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Some special-purpose steel pipes also require surface shot peening and machining.
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The inspector on duty should prepare the paint and high-temperature chalk used for the inspection and marking of the class in preparation for application.
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There are straight line or helical, semi-spiral zigzag defects on the inner surface of the seamless pipe.
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Uneven wall thickness Features: The wall thickness of the steel pipe is uneven on the same section, and the difference…
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The ultrasonic probe can realize the mutual conversion of electric energy and sound energy.
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As we all know, seamless carbon steel pipe has better corrosion resistance, is a kind of pipeline resistant to weak acid substances such as steam, and is widely used in our daily life.
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We have mention the definition of hot rolling seamless steel pipe will continue to talk about the advantages and disadvantages of hot rolling seamless steel tube with all of you.
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The production equipment consists of punching machine, automatic pipe rolling machine, coiling machine, sizing machine and reducing machine.
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A regular inspection mechanism is established to regularly inspect the deformation, expansion, diameter, size and bending of seamless steel pipes.
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