Metal continuous casting method and device used for implementing method

A metal and molten metal technology, applied in the field of metallurgy, can solve the problems of difficulty in rapid replacement, difficulty in ensuring uninterrupted feeding of consumable cold materials, etc., and achieves the effect of speeding up quality exchange, preventing transfer, and achieving good tissue uniformity.

Active Publication Date: 2010-02-03
刘欣雨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0021] - Difficulty in quickly changing coils of consumable cold material and ensuring uninterrupted feeding of consumable cold material during continuous casting

Method used

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  • Metal continuous casting method and device used for implementing method
  • Metal continuous casting method and device used for implementing method
  • Metal continuous casting method and device used for implementing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] The device implementing steel and alloy square continuous casting method by this patent is shown in figure 1 . The molten metal 5 enters the crystallizer 7 from the tundish 4 through the submerged ladle 6 .

[0084] This method is used in the continuous casting of molten steel with a carbon content of 0.2% and a liquidus temperature of 1518°C. The cross section of the crystallizer is 250×1550mm, and the continuous casting speed is 0.8-5m / min.

[0085] The consumable cold material is a steel strip with a cross-section of 2.7×100mm. Type conduit and non-contact electromagnetic vibrator are continuously fed into the mold molten steel at a speed of 4.2m / min.

[0086] The carbon content of the steel strip is 0.4%, the liquidus temperature is 1495°C, and the Brinell hardness of the steel strip is 203 scale units.

[0087] With the help of the non-contact electromagnetic vibrator, the cold material can be consumed to generate resonance, the frequency is 93-95Hz, the amplit...

Embodiment 2

[0093] Continuous casting steel is used, the steel contains 0.40% carbon, and the initial casting velocity is 0.43m / min. During the continuous casting process, the steel strip is continuously fed into the crystallizer (trough) (diameter φ530mm), (section 3×80mm), the feeding speed is 4.1m / min, and the carbon content of the steel strip is 0.35%. Under the action of a non-contact electromagnetic vibrator, a resonance is excited in the cold steel strip, with a frequency of 95-100HZ and a wavelength of 540mm.

[0094] The distance L from the axis line of the lower roller of the electromagnetic vibrator to the surface of the molten metal in the crystallizer shall satisfy the following formula (n=2):

[0095] L = 2 λ 2 - 3 λ 8 = 2 / 2 × 540 - 3 / ...

Embodiment 3

[0097] Continuous casting steel is used, the carbon content of the steel is 0.40%, and the casting speed is 0.43m / min. During the continuous casting process, the cold steel strip (section 3×80mm) is continuously fed to the crystallizer (trough) (diameter φ530mm), the feeding speed is 4.1m / min, and the carbon content of the steel strip is 0.35%. Under the action of the non-contact electromagnetic vibrator, the resonance is excited in the cold steel strip, the frequency is 95-100HZ, the wavelength is 540mm, and the amplitude is 4.0-5.0mm.

[0098] The distance L from the axis line of the lower roller of the electromagnetic vibrator to the surface of the molten metal in the crystallizer shall satisfy the following formula (n=4):

[0099] L = 4 λ 2 - 3 λ 8 = 4 / 2 × 540 - ...

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Abstract

The invention belongs to the technical field of metallurgy, and relates to a metal continuous casting method and a device used for implementing the method, which can be used for continuous casting billets, and also can be used for modified treatment in liquid metal alloy smelting. The device comprises a guide pipe (2), a non-contact electromagnetic vibrator (3), a middle ladle pot (4) and a crystallizer (7); a metal strip (1) enters the non-contact electromagnetic vibrator (3) through the guide pipe (2), and then enters the crystallizer (7) to send consumable cold materials to the crystallizer(7); liquid metal (5) is continuously sent to the crystallizer (7) from the middle ladle pot (4) through a submarine water gap (6) fixedly adapted to the bottom of the middle ladle pot (4), so that the billets for the next processing are continuously drawn from the crystallizer (7); when the consumable cold materials are sent to the crystallizer (7), the non-contact electromagnetic vibrator (3) by means of electromagnet action endows the consumable cold materials with forced resonance; and the device is characterized in that the guide pipe (2) adopts a star shape.

Description

technical field [0001] The invention belongs to the technical field of metallurgy, and relates to a metal continuous casting method and a device used for implementing the method, which can be used not only for continuous casting slabs, but also for denaturation treatment of liquid metal alloy smelting. Background technique [0002] Some known technological measures (U.S. Patent No. 3726331, No. 4047556, Soviet Patent No. 2809672122-02) that help to improve the quality of metal and alloy continuous casting slabs are to add various solid consumables to the metal melt. Cold material whose length exceeds many times the greatest transverse dimension, such as rod, wire or strip. [0003] These known methods and implemented devices do not guarantee a steady increase in the quality of the cast slab. This is because the added consumable cold material only moves in the direction of feeding, and cannot form an interactive promotion effect with the molten metal. [0004] As a result, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/00B22D11/06B22D11/115
Inventor 柳德考夫斯基B.M布里亚科夫斯基Г.A布腊科夫A.H帕里B.Г刘东业杨嘉瑞
Owner 刘欣雨
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