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

CN112496029AActive Publication Date: 2021-03-16福建三宝钢铁有限公司

8 Cites 2 Cited by

Patent Information

Authority / Receiving Office: CN · China
Current Assignee / Owner: 福建三宝钢铁有限公司
Publication Date: 2021-03-16

Smart Images

Figure 1

Patent Text Reader

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.

Need to check novelty before this filing date? Find Prior Art

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to View More