Preparation process of Cu-Cr corrosion-resistant reinforcing steel bar
A preparation process and corrosion-resistant technology, applied in the field of steel bars, can solve the problems of difficulty in improving the corrosion resistance of steel bars, and achieve the effects of improving corrosion resistance, avoiding waste, and avoiding incomplete reactions.
Active Publication Date: 2022-01-07
福建三宝钢铁有限公司
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Problems solved by technology
[0005] For this reason, the present invention provides a kind of preparation process of Cu-Cr series corrosion-resistant steel bar, in order to overcome still lack in the prior art a kind of method that can adjust the slagging material in ladle refining furnace according to the different slagging parameters of slagging material The addition amount and argon blowing pressure are determined by the preparation process, which leads to the problem that the corrosion resistance of steel bars is difficult to improve
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[0053] In order to make the objects and advantages of the present invention clearer, the present invention will be further described below in conjunction with the examples; it should be understood that the specific examples described here are only for explaining the present invention, and are not intended to limit the present invention.
[0054] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present invention, and are not intended to limit the protection scope of the present invention.
[0055] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "left", "right", "inner", "outer" and other indicated directions or positional relationships are based on the terms shown in the accompanying drawings. The direction or positional relationship shown is ...
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The invention relates to a preparation process of a Cu-Cr corrosion-resistant steel bar. The preparation process of the Cu-Cr corrosion-resistant steel bar comprises the processes of converter steelmaking, steel ladle refining furnace refining, circular vacuum degassing in an RH furnace, Cu-Cr alloy adding, casting and continuous casting. According to the preparation process of the Cu-Cr corrosion-resistant steel bar, during steel ladle refining furnace refining, a central controller initially determines the weight of a slagging material needing to be added according to the weight of molten steel conveyed into a steel ladle refining furnace, and adjusts the initially determined weight of the slagging material needing to be added in combination with calculated slagging parameters of the slagging material; the central controller determines the initial argon blowing pressure according to the adjusted weight of the slagging material needing to be added, and performs different correction on the initial argon blowing pressure during next desulfurization and deoxidation of the steel ladle refining furnace according to a comparison result of the calculated melting time of the slagging material and a preset melting time; and through step-by-step and layer-by-layer adjustment, the corrosion resistance of the prepared reinforcing steel bar is improved.
Description
technical field [0001] The invention relates to the technical field of steel bars, in particular to a preparation process for Cu-Cr series corrosion-resistant steel bars. Background technique [0002] Rebar is the basic material of modern buildings, widely used in the construction of houses, bridges, roads, etc., and its performance directly affects the life and safety of concrete components. At present, our country is in the rapid development stage of urbanization, and the real estate and infrastructure construction are developing vigorously. [0003] With the development of continuous casting technology and the continuous improvement of steel quality requirements, ladle refining furnace has been paid more and more attention. Using the heating and refining function of the ladle furnace can solve many problems between steelmaking and continuous casting, such as reducing the tapping temperature, improving the technical index of converter smelting, providing molten steel with...
Claims
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IPC IPC(8): C21C5/28C21C7/00C21C7/06C21C7/064C21C7/10C22C33/06
CPCC21C5/28C21C7/06C21C7/064C21C7/10C21C7/0006C22C33/06
Inventor 王光文唐名标李维华林致明
Owner 福建三宝钢铁有限公司