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A method for on-line inspection and confirmation of roll groove dropouts for the production of special steel wire rods

A special steel and roll technology, which is applied in the field of on-line inspection and confirmation of roll grooves for the production of special steel wire rods, can solve problems such as surface hazards, scratches, and impacts on the use of finished products, so as to improve surface quality and increase production efficiency , reduce the effect of post inspection

Active Publication Date: 2020-07-14
NANJING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the rolling process, due to various reasons, there will be a small amount of defects, such as falling blocks, scratches and surface cracks. These defects will cause great harm to the surface of the rolled material and seriously affect the use of the finished product.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment Construction

[0017] The present embodiment provides a method for on-line inspection and confirmation of roll grooves for producing special steel wire rods, including the following steps:

[0018] S1. In the rough rolling mill of the continuous rolling line for wire rod production, when the roll diameter is 560-650mm and the roll speed is 450-580rpm with a large roll diameter and low speed, use a flashlight to directly check the surface condition of the rolled piece with the naked eye. If the rolled piece If the surface is uneven, with protrusions and cracks, it means that there are pieces and cracks on the surface of the rough rolling mill roll;

[0019] S2. In the rolling mill of the continuous rolling line for wire rod production, when the roll diameter is 440-520mm and the roll speed is 560-700rpm with large roll diameter and high speed, one end of the φ5.5 iron wire is used to connect the exit side of the rolling mill with the roll surface Contact, if the iron wire vibrates violently, ...

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Abstract

The invention discloses a roller rolling groove chipping on-line inspection confirmation method for production of a special steel wire rod, and relates to the technical field of special steel wire rodrolling. The method comprises the following steps of carrying out special steel wire rod defect identification and determining the sampling part and a sampling mode. According to the on-line inspection confirmation method, the defect type and the defect part of the special steel wire rod are identified, so that the influence of defects on a roller on a finished product is reduced to the maximum extent, and the surface quality of the special steel wire rod is improved.

Description

technical field [0001] The invention relates to the technical field of special steel wire rod rolling, in particular to an on-line inspection and confirmation method for rolling grooves of rolls used for the production of special steel wire rods. Background technique [0002] In the rolling mill, the wire rod is rolled into straight strips at high speed and then sent to the laying machine to form a series of large-diameter coils, which are then dropped on a conveyor or similar equipment for forward transportation, and finally the finished product is formed by collecting and bundling. During the rolling process, due to various reasons, a small amount of defects will occur on the roll, such as falling blocks, scratches and surface cracks. These defects will cause great harm to the surface of the rolled material and seriously affect the use of the finished product. Spring steel, cold heading steel for automobiles and other automotive steels have extremely strict surface require...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21B1/18B21B27/02B21B38/12
CPCB21B1/18B21B27/024B21B38/12
Inventor 黄志杰
Owner NANJING IRON & STEEL CO LTD
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