Heating system for drill steel pipe billet and heating method thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11565294
APP PUB NO 20210299723A1
SERIAL NO

17213773

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Abstract

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A heating system for drill steel pipe billet includes a feedback device configured to control distances d1 and d2 of three flamethrowers, a propulsion device, a positioning device, a heating device, a temperature measuring device and a conveying device. Heating temperature of the flamethrowers is controlled by an oxygen distribution box and a gas distribution box. A heating method for the drill steel pipe billet is also provided, in which a rolling forming method of gradient flame heating is adopted to control density of the rolled pieces and avoid internal defects of the drill steel caused by the same deformation of the traditional uniformly heated pipe billets. A radial temperature of the drill steel pipe billet is accurately controlled through the feedback device. Only one set of flamethrowers corresponding to drill steel pipe billets of different dimensions is required, and other devices are universal components, which will not be replaced.

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Patent Owner(s)

Patent OwnerAddress
YANSHAN UNIVERSITYQINHUANGDAO CITY HEBEI 066004

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Xinliang Qinhuangdao, CN 5 21
Niu, Shenshen Qinhuangdao, CN 1 1

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