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Steel coil production process

A production process and technology for steel coils, applied in manufacturing tools, metal processing equipment, metal rolling, etc., to solve problems such as affecting the width and quality of coils, inability to perform stable welding, and uneven ends of steel coils. The effect of popularizing the use, improving the welding quality and ensuring the quality

Inactive Publication Date: 2021-02-12
浙江屹立金属材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing steel coil production process, most of the raw materials are directly uncoiled and welded, which is easy to cause the angle of surface impurities, which is not conducive to subsequent rolling production, and due to the limitation of steel coil forming equipment, the ends of the steel coil are mostly uneven , unable to perform stable welding, which affects the quality of the coil, and at the same time, it is easy to cause large cracks at the edge during rolling, which affects the width and quality of the coil. A new process needs to be proposed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A production process of a steel coil, the production process of the steel coil comprises the following steps:

[0042] P1. The steel coil material is uncoiled by an uncoiler, and repeatedly pressed by a pressure roller to obtain a straightened steel strip;

[0043] P2, placing the straightened steel strip in a pickling tank for immersion pickling to obtain a pickled steel strip;

[0044] P3, rinse the pickling steel strip with clear water to obtain the rinsed steel strip;

[0045] P4, the rinsed steel strip is placed in the annealing furnace, annealed, and the annealed steel strip is obtained;

[0046] P5, cutting the head and tail of the annealed steel strip, and using an automatic welding seam machine to carry out end-to-end welding to obtain a welded steel strip;

[0047] P6. Heating the edge positions on both sides of the welded steel strip to 220°C to 240°C, and the temperature at the center of the steel strip is 60°C to 80°C to obtain a heated steel strip;

[0...

Embodiment 2

[0058] A production process of a steel coil, the production process of the steel coil comprises the following steps:

[0059] P1. The steel coil material is uncoiled by an uncoiler, and repeatedly pressed by a pressure roller to obtain a straightened steel strip;

[0060] P2, placing the straightened steel strip in a pickling tank for immersion pickling to obtain a pickled steel strip;

[0061] P3, rinse the pickling steel strip with clear water to obtain the rinsed steel strip;

[0062] P4, the rinsed steel strip is placed in the annealing furnace, annealed, and the annealed steel strip is obtained;

[0063] P5, cutting the head and tail of the annealed steel strip, and using an automatic welding seam machine to carry out end-to-end welding to obtain a welded steel strip;

[0064] P6. Heating the edge positions on both sides of the welded steel strip to 220°C to 240°C, and the temperature at the center of the steel strip is 60°C to 80°C to obtain a heated steel strip;

[0...

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PUM

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Abstract

The invention discloses a steel coil production process which comprises the following steps that P1, a steel coil material is uncoiled through an uncoiling machine, and repeated pressing is conductedthrough a pressing roller to obtain a straightened steel belt; P2, the straightened steel belt is placed in an acid pickling pool to be soaked and subjected to acid pickling, and an acid-pickled steelbelt is obtained; P3, the acid-pickled steel belt is washed with clean water, and a washed steel belt is obtained; P4, the washed steel belt is placed in an annealing furnace to be subjected to annealing treatment, and an annealed steel belt is obtained; P5, the head and the tail of the annealed steel belt are cut off, and head-to-tail welding is conducted by using an automatic welding machine toobtain the welded steel belt; P6, a heated steel belt is obtained; P7, a rolled steel belt; P8, a steel belt coil is obtained; and P9, steel coil production can be completed, the rolling efficiency and quality are effectively improved, cracking is reduced, cutting and trimming are conducted in cooperation with an edge shearing machine, the steel coil quality is guaranteed, efficient production and machining are facilitated, and application and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of steel coil production, in particular to a production process of steel coils. Background technique [0002] In the current industrial production process, steel coils are used in a very wide range, but in production and processing, due to material and equipment limitations, it is necessary to produce shorter coils first, and then perform composite processing. [0003] However, in the existing steel coil production process, most of the raw materials are directly uncoiled and welded, which is easy to cause the angle of surface impurities, which is not conducive to subsequent rolling production, and due to the limitation of steel coil forming equipment, the ends of the steel coil are mostly uneven , stable welding cannot be performed, which affects the quality of the coil, and at the same time, it is easy to cause large cracks at the edge during rolling, which affects the width and quality of the coil. A new p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/22B21B15/00C23G1/08
CPCB21B1/22B21B15/00B21B15/0007C23G1/08B21B2001/225
Inventor 蔡赛怀
Owner 浙江屹立金属材料有限公司