Production method of hot-rolled seamless steel pipes
A technology of seamless steel pipe and production method, applied in the direction of metal rolling, etc., can solve the problems of high manufacturing cost per unit finished product, long sawing steel pipe head and tail, limited production capacity increase, etc., to improve production capacity, low manufacturing cost, and production capacity high effect
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[0012] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0013] Such as figure 2 As shown, the production method of the hot-rolled seamless steel pipe of the present invention includes the following process steps: heating the billet in a heating furnace → using a piercer to perforate the billet into a capillary pipe → rolling pipe extension → fixed diameter reduction → hot sawing and cutting → cooling bed Cooling → ...
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