Title: Cool-controlling treatment and cooling device of hot-rolled steel tube
Application Number: 86103933 Application Date: 1986.06.12
Publication Number: 1013465 Publication Date: 1987.09.23
Approval Pub. Date: Granted Pub. Date: 1988.04.13
International Classifi-cation: C21D1/667,C21D9/08
Applicant(s) Name: General Research Inst. of Iron and Steel, Ministry Address:
Inventor(s) Name: Chen Enbo, Fu Guishan, Ji Zhihua, Liu Huaiwen, Zhe
Attorney & Agent: CHENG GUANGHU
Abstract:
     This invention relates to a cool-controlling treatment process and cooling device of hot-rolled steel tube. The cooling device consists of several groups of rotary roller bed which made up of transmitting roller driven by power, upward press rollers, high speed efflux nozzles and external cooling injection flow orifice plate, etc. The cooling system is using efflux nozzles as internal cooling device and injection flow type as external cooling device. The hot steel tube can be straightened at once when it entering the rotating roller bed. Since there is auger-type line on the surface of transmitting roller, the cooled tube can both rotates and moves along axially. The cooling is uniform in all directions in radial, axis and circumference. After cooling, the tube straighteness is good, mechanical properties has been improved obviously and large energy has been saved.
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