Seawater corrosion-resistant steel bar HRB400cE controlled rolling and controlled cooling process

A technology of controlled rolling, controlled cooling, and seawater resistance, which is applied in manufacturing tools, metal rolling, metal rolling, etc., and can solve problems such as low rolling efficiency

Active Publication Date: 2021-03-16
福建三宝钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] For this reason, the present invention provides a HRB400cE controlled rolling and controlled cooling process for seawater corrosion-resistant steel bar, ...

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  • Seawater corrosion-resistant steel bar HRB400cE controlled rolling and controlled cooling process

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Embodiment Construction

[0091] 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.

[0092] 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.

[0093] 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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Abstract

The invention relates to a seawater corrosion-resistant steel bar HRB400cE controlled rolling and controlled cooling process. The process comprises the following steps of determining the maximum pressure of a roller on a steel billet, the distance between roller groups and the rotating speed of a conveying roller; heating the steel billet to a preset temperature, and then conveying the steel billet to a steel rolling unit for rough rolling, intermediate rolling and finish rolling in sequence; ensuring that the conveying roller conveys the sheared finish-rolled steel billet to a cooling unit for cooling; bundling and loading finished steel into a finished product warehouse after being subjected to quality inspection and cutting. According to the process, an alloy type is input in advance, the maximum rolling pressure is set by a central control unit so that the situation that the steel billet is damaged by the roller can be effectively avoided, the central control unit can also adjust the distance between steel roller groups in a targeted mode according to the deformation quantity of the steel billet in the rolling process of a single step, and rolling parameters, heating parametersand cooling parameters can be adjusted in a targeted mode according to different kinds of steel billets by adjusting the heating temperature, the heat supplementing temperature and the conveying speed of the steel billet. The steel billet rolling efficiency of the process is effectively improved.

Description

technical field [0001] The invention relates to the technical field of metal rolling, in particular to a seawater corrosion-resistant steel HRB400cE controlled rolling and cooling process. Background technique [0002] HRB400cE is the grade of threaded steel bar stipulated in "Steel for Reinforced Concrete" GB 1499.2-2007. Due to the wide range of standard components and the differences in production equipment and process control of manufacturers, the composition of HRB400cE hot-rolled ribbed steel bars produced by various manufacturers Each is different, and the production process of each steel factory is also different. In the existing rolling process for HRB400cE steel, a single adjustment method is used to adjust the rolling parameters and temperature parameters. Since the maximum load of alloy steel mixed with different metals is different, in the existing process In the process, when the pressure and temperature are adjusted using a unified adjustment standard, it is ...

Claims

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Application Information

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IPC IPC(8): B21B1/08B21B15/00B21B15/02B21B37/00B21B37/74B21B38/00C21D8/08
CPCB21B1/08B21B15/0007B21B15/02B21B37/00B21B37/74B21B38/00C21D8/08B21B2015/0014B21B2001/081
Inventor 王光文吕维纯熊科林何福胜
Owner 福建三宝钢铁有限公司
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