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Material heating unit and continuous casting unit

A heating device and induction heating technology, used in lighting and heating equipment, metal rolling, furnaces, etc., can solve problems such as reducing product surface quality, material scratches, etc., to ensure strength, improve surface defects, and save energy usage. Effect

Active Publication Date: 2021-10-29
浦项股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] However, for this type of roller, if the foreign matter causes the rotation to be unsmooth, it will cause scratches on the material, thereby reducing the surface quality of the product

Method used

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  • Material heating unit and continuous casting unit
  • Material heating unit and continuous casting unit
  • Material heating unit and continuous casting unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0138] The conditions of Example 1 are H: 90mm, V: 5.5m / min, W: 1550mm, T: 1200°C, and the length of the tunnel furnace 100: 200m.

Embodiment 2

[0139] The conditions of Example 2 are H: 90mm, V: 5.5m / min, W: 1550mm, T: 1200°C, and the length of the tunnel furnace 100: 200m.

[0140] Among them, H: thickness of material S [mm], V: speed of material S [m / min], T: average temperature of material S at the exit side of continuous casting [℃], L P : replaceable length of the tunnel furnace 100 [m], L TF : the remaining length of the tunnel furnace 100 [m].

[0141] Mathematical formula (1):

[0142]

[0143] Mathematical formula (2):

[0144] L TF ≥0.165HV+0.364

[0145] Mathematical formula (3):

[0146]

[0147] In Example 1, when H: 90mm, V: 6.5m / min, W: 1650mm, T: 1250°C, and the length of the tunnel furnace 100: 200m, the replaceable length L of the tunnel furnace 100 should be satisfied P ≤67.88m, the remaining length L of the tunnel furnace 100 TF ≥96.89m.

[0148] When the replacement length L of the tunnel furnace 100: 60m, since the remaining length of the tunnel furnace 100 is 140m, it can be replac...

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Abstract

The present invention provides a material heating device, which includes: a tunnel furnace for heating materials; and a replacement area for replacing materials into a first region around an introduction portion of the tunnel furnace and materials At least any one of the second areas of the periphery of the outlet part derived from the tunnel furnace to at least keep the material warm, and the replacement area has: a cover mechanism for covering the material to reduce the temperature loss of the material and a cylindrical flat roller mechanism for moving the material through said cover mechanism in rotational contact with the bottom line in the width direction of the material.

Description

technical field [0001] The invention relates to a material heating device and a continuous casting device for improving surface defects. Background technique [0002] The content here is only to provide background information about the present invention and does not constitute prior art, so it will be described first. [0003] In the continuous casting process, it is very important to ensure the temperature to implement rolling. [0004] When performing rolling, if the mechanical and metallurgical characteristic values ​​of the material cannot be satisfied because the temperature at the exit side of the finish rolling mill is not ensured, it cannot be produced as a product. [0005] Similarly, when the temperature is low, the load on the rolling mill becomes large and the passability becomes unstable, which may cause an accident. [0006] In the continuous casting process, in order to secure the temperature for rolling, the material (S1ab) is heated using a tunnel furnace ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/12B21B1/46
CPCB21B1/463B22D11/1213F27B9/067F27B9/2407
Inventor 赵庸硕李赫骏
Owner 浦项股份有限公司
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