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A Round Steel Rolling Process with Optimized Guide Configuration

A round steel rolling and process technology, which is applied in the field of round steel rolling technology with optimized guide configuration, can solve the problems of increasing the production cost of bar steel, long guide replacement time, more manpower and working hours, etc., and achieve the quality of finished products High, low carbon content, the effect of improving quality

Active Publication Date: 2022-04-05
BAOSTEEL SPECIAL STEEL SHAOGUAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in the existing bar steel production process, the replacement of the guides of the rolling mill takes a long time, which consumes more manpower and working hours, which virtually increases the cost of bar steel production

Method used

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  • A Round Steel Rolling Process with Optimized Guide Configuration
  • A Round Steel Rolling Process with Optimized Guide Configuration
  • A Round Steel Rolling Process with Optimized Guide Configuration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] see Figure 1-Figure 3

[0062] What this embodiment provided was the rolling process of producing φ80 round steel. Specifically include the following steps:

[0063] S1: For the first intermediate rolling, the incoming square steel with a size of 205mm×205mm is pushed into the first oval-gauge rolling mill for the first intermediate rolling. The reduction is 40mm per pass, and the square steel with a size of 205mm×205mm is The incoming material is rolled into a billet of 164mm×221mm, that is, the first intermediate rolling is completed; the roll diameter of the rolling mill in this intermediate rolling is 800mm, and the roll thickness between two adjacent rolls is 8.0mm. The elongation coefficient of each deformation pass is 1.26, the rolling speed is 0.27m / s, and the rolled area is 33413mm 2 ;

[0064] S2: In the second intermediate rolling, the billet with a size of 164mm×221mm formed in the first intermediate rolling is pushed into the first round-gauge rolling ...

Embodiment 2

[0084] see Figure 1-Figure 3

[0085] What this embodiment provided was the rolling process of producing φ90mm round steel. Specifically include the following steps:

[0086]S1: For the first intermediate rolling, the incoming square steel with a size of 205mm×205mm is pushed into the first oval-gauge rolling mill for the first intermediate rolling. The reduction is 40mm per pass, and the square steel with a size of 205mm×205mm is The incoming material is rolled into a billet of 164mm×221mm, that is, the first intermediate rolling is completed; the roll diameter of the rolling mill in this intermediate rolling is 800mm, and the roll thickness between two adjacent rolls is 8.0mm. The elongation coefficient of each deformation pass is 1.26, the rolling speed is 0.27m / s, and the rolled area is 33413mm 2 ;

[0087] S2: In the second intermediate rolling, the billet with a size of 164mm×221mm formed in the first intermediate rolling is pushed into the first round-gauge rolling...

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Abstract

The invention relates to a round steel rolling process for optimizing guide configuration. The round steel rolling process with optimized guide arrangement provided by the present invention includes six intermediate rollings and four finishing rollings. Break the coarse grains in the raw square steel into fine and uniform fine particles, so that the internal grains of the round steel formed after being rolled are tightly arranged together; the internal structure of the round steel formed after being rolled is more compact , which increases the strength of the steel. The brittle impurities in the square steel, such as carbon, phosphorus, etc., are rolled into pieces, while the plastic impurities, such as manganese, tungsten, etc., are rolled to form round steel with low carbon content and good mechanical properties such as strength, toughness and machinability, etc. Significantly improved. The opening of the inlet guides of the rolling mill is between 120mm and 135mm, and the bell mouth length of the inlet guides is between 200mm and 210mm; when producing round steel with similar diameters, there is no need to replace the guides at the inlet of the rolling mill , can be produced by sharing guides. It reduces the time for replacing guides and improves production efficiency.

Description

technical field [0001] The invention relates to the technical field of round steel rolling technology, more specifically, it relates to a round steel rolling technology with optimized guide arrangement. Background technique [0002] In recent years, with the rapid development of my country's economy, all walks of life have an increasing demand for steel, and at the same time have higher and higher requirements for steel quality. Especially with the development of machinery, automobile, construction and other industries, the market demand for high-quality and high-precision bar steel has increased significantly, so bar steel is an important direction for industrial development. [0003] In order to meet the market demand, it is necessary to produce high-quality and high-precision bar steel. [0004] In addition, in the existing steel bar production process, it takes a long time to replace the guides of the rolling mill, which consumes more manpower and working hours, which v...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/18
CPCB21B1/18
Inventor 廖子东刘海鹏周成宏徐鹏洪少锋李学保陈建洲赵标蓝胜根廖中意刘振波余远波黄远业田外员徐城亮林勋荣戴坚辉
Owner BAOSTEEL SPECIAL STEEL SHAOGUAN CO LTD
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