The invention relates to the technical field of ferrous metallurgy, in particular to a hot rolled steel coil for a hollow stabilizer bar, a production method of the hot rolled steel coil and the hollow stabilizer bar. The production method of the hot rolled steel coil for the hollow stabilizer bar comprises the steps that raw materials are sequentially subjected to molten iron pretreatment, converter smelting, LF refining, RH refining and continuous casting, and a plate blank is obtained; the plate blank is subjected to heating treatment and rolling treatment, and strip steel is obtained; wherein plate blank heating treatment is carried out in a weak reducing atmosphere heating furnace, and the atmosphere in the furnace is strictly controlled; the strip steel is subjected to cooling treatment and coiling treatment, and a hot rolled steel coil for the hollow stabilizer bar is obtained; wherein the cooling treatment adopts a relaxation type rear-section cooling mode. According to the invention, the problems of easy surface decarburization, developed banded structure and the like of the hot rolled steel coil prepared in the conventional production process are solved.
本发明涉及钢铁冶金技术领域,具体而言,涉及一种空心稳定杆用热轧钢卷及其生产方法、空心稳定杆;该方法包括:所述空心稳定杆用热轧钢卷的生产方法包括:将原料依次经铁水预处理、转炉冶炼、LF精炼、RH精炼和连铸,得到板坯;将板坯进行加热处理和轧制处理,得到带钢;其中,板坯加热处理在弱还原性气氛加热炉中进行,并严格控制炉内气氛;将带钢进行冷却处理和卷取处理,得到空心稳定杆用热轧钢卷;其中,冷却处理采用弛豫型后段冷却方式。本发明克服了常规生产工艺中制得的热轧钢卷易发生表面脱碳、带状组织发达等问题。
Hot rolled steel coil for hollow stabilizer bar, production method of hot rolled steel coil and hollow stabilizer bar
一种空心稳定杆用热轧钢卷及其生产方法、空心稳定杆
2024-01-02
Patent
Electronic Resource
Chinese
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