Steelmaking square billet encoding and sizing method

A technology of sizing and coding, which is applied in the field of coding and sizing of steelmaking billets, to achieve the effects of improving service life, good practical value and ensuring stability

Inactive Publication Date: 2011-01-12
TANGSHAN GUOFENG IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the accuracy of continuous casting cutting and sizing, and prevent the problem of waste billets caused by long and short lengths during cutting, and provides a method

Method used

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  • Steelmaking square billet encoding and sizing method
  • Steelmaking square billet encoding and sizing method
  • Steelmaking square billet encoding and sizing method

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Embodiment Construction

[0010] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0011] In the steelmaking billet encoding and sizing method described in this embodiment, first, an incremental rotary encoder is added to the upper roll of the tensioning and leveling machine, and the tensioning and leveling roll is used as a measuring roll for data tracking and measurement. 1 pulse actual billet running distance = ∏D (drawing and straightening roll diameter) N (reduction ratio) ÷ n (encoder actual pulse number).

[0012] In order to improve the service life of the encoder, a water-cooled sheath is added to the encoder, so that the operating environment temperature of the encoder is 70°C. The connection method adopts spring type soft connection to prevent the motor bearing heat conduction from affecting the encoder operation. The encoder cable is equipped with a heat-resistant sleeve to prevent heat from affecting the encoder's tran...

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Abstract

The invention relates to a method for accurately sizing a casting billet on a steelmaking continuous casting production line, in particular to a steelmaking square billet encoding and sizing method which comprises the following steps: mounting an increment rotary encoder on a roll of a withdrawal and straightening machine, establishing communication between an upper computer and a PLC by a network, and sending a cutting and sizing plan command from the upper computer to the PLC; when the PLC receives the signal, carrying out data trace calculation and comparison on the accumulated calculation length for sizing of the increment rotary encoder, the radian track of a dummy bar in accordance with a continuous casting process and the planed length of the upper computer; when the casting machine starts casting until stripping is finished, storing the current radian trace data of the dummy bar; and when the accumulated length of the encoder is greater than or equal to the planed length, the PLC sending a screwdown cutting command signal to a cutting vehicle, and simultaneously setting the accumulated length of the encoder to zero to carry out the next trace calculation of the sizing length. By using the withdrawal and straightening roll as a measuring roll, the invention realizes that the encoder can carry out trace calculation and measurement on the sizing data of the casting billet, thereby achieving the advantages of cost saving and accurate measurement.

Description

technical field [0001] The invention relates to a method for precisely dimensioning a billet in a steelmaking and continuous casting production line, in particular to a coded and dimensioning method for a steelmaking billet. Background technique [0002] At present, in the continuous casting cutting and sizing production process, billet sizing methods include infrared sizing, camera sizing, pulling speed sizing and pulse signal sizing, among which infrared sizing and camera sizing are affected by external factors There are many, which is inconvenient to apply; the calculation error of drawing speed and length is relatively large, and there is also a problem that the deviation between the pulse signal and the actual length is too large, resulting in a larger error than the allowable error range of the length. In this case, because the cutting car and the stretching and leveling machine can no longer be modified, long and short blanks will appear during cutting, resulting in w...

Claims

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Application Information

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IPC IPC(8): B22D11/126
Inventor 兰电震王玉龙汪印志李长友
Owner TANGSHAN GUOFENG IRON & STEEL
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