Continuous casting crystallizer device using ultrasonic vibration

A technology of continuous casting crystallizer and ultrasonic wave, which is applied in the field of metallurgical continuous casting, can solve problems such as vibration defects of slabs that cannot be solved, and achieve the effects of reducing height, saving investment, and eliminating bonding

Inactive Publication Date: 2010-12-08
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the improvement of the vibration mode of the crystallizer cannot solve the inherent vibration defects of the slab, so people have been continuously developing molds with new structures.

Method used

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  • Continuous casting crystallizer device using ultrasonic vibration
  • Continuous casting crystallizer device using ultrasonic vibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: In this embodiment, aluminum ingots are cast continuously. The size of the crystallizer used is 50×50mm in section and 500mm in length. It is a rectangle made of copper plate. The ultrasonic vibration crystallizer is made according to the method described in the patent of the present invention. The power of the ultrasonic wave is 100W and the frequency is 15KHz. The ratio of copper plate area is 1000W / M 2 . One end of the ultrasonic vibration crystallizer is connected to the tundish, and the other end is plugged with a dummy head in the copper plate of the mold before pouring. The dummy head is pulled by a steel wire rope, and the other end of the wire rope is connected to the winch driven by a motor and a gearbox. During the test, first put 100 kg of aluminum ingot into a 100 kg medium frequency induction furnace to melt, after it is completely melted, turn on the ultrasonic power supply, let the ultrasonic crystallizer start to work; then pour the melte...

Embodiment 2

[0021] Embodiment 2: This embodiment continuously casts copper ingots. The size of the crystallizer used is 50 × 50mm in cross section and 500mm in length. It is a rectangle made of copper plate. The ultrasonic vibration crystallizer is made according to the method described in the patent of the present invention. The power of the ultrasonic wave is 500W and the frequency is 30KHz. The ratio of copper plate area is 5000W / M 2 . One end of the ultrasonic vibration crystallizer is connected to the tundish, and the other end is plugged with a dummy head in the copper plate of the mold before pouring. The dummy head is pulled by a steel wire rope, and the other end of the wire rope is connected to the winch driven by a motor and a gearbox. During the test, first add 100 kg of copper ingots to a 100 kg medium frequency induction furnace and melt them. After they are completely melted, turn on the ultrasonic power supply and let the ultrasonic crystallizer start to work; then pour t...

Embodiment 3

[0022] Embodiment 3: In this embodiment, steel ingots are cast continuously. The size of the crystallizer used is 50×50mm in cross section and 500mm in length. It is a rectangle made of copper plate. The ultrasonic vibration crystallizer is made according to the method described in the patent of the present invention. The power of the ultrasonic wave is 1000W and the frequency is 60KHz. The ratio of copper plate area is 10000W / M 2 . One end of the ultrasonic vibration crystallizer is connected to the tundish, and the other end is plugged with a dummy head in the copper plate of the mold before pouring. The dummy head is pulled by a steel wire rope, and the other end of the wire rope is connected to the winch driven by a motor and a gearbox. During the test, first put a 100 kg steel ingot into a 100 kg medium frequency induction furnace and melt it. After it is completely melted, turn on the ultrasonic power supply and let the ultrasonic crystallizer start to work; then pour t...

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Abstract

The invention provides a continuous casting crystallizer device using ultrasonic vibration, which belongs to the technical field of metallurgical casting. The device of the invention comprises a trough, a crystallizer, a crystallizer copper plate, ultrasonic guide rods, an energy converter and an ultrasonic power supply, wherein the crystallizer is directly connected with the trough; the ultrasonic guide rod is arranged on each reverse side of the crystallizer copper plate and connected with the energy converter; the energy converter is connected with the ultrasonic power supply; the ultrasonic guide rod passes through a cooling water tank and is vertically connected with the crystallizer copper plate; and the length of the ultrasonic guide rod is an integral multiple of the wavelength or half-wavelength of the used ultrasonic. The vibration mode of the ultrasonic vibration crystallizer provided by the invention breaks through the traditional mechanical vibration limit, and the continuous casting crystallizer device using the ultrasonic vibration is favorable for promoting the production of deflect-less continuous casting blanks without surface defects such as vibration marks and improving the quality of the casting blanks and steel.

Description

technical field [0001] The invention belongs to the technical field of metallurgical continuous casting, and in particular relates to a continuous casting mold device using ultrasonic vibration. Background technique [0002] The mold is the heart part of the continuous casting machine. When pouring molten steel, if the mold is fixed, the casting slab will easily bond with the mold, resulting in "unable to pull" or leakage accidents, making it difficult to pour. The crystallizer reciprocates up and down with a certain rule, so that the inner wall can obtain good lubrication conditions, reduce friction and prevent the molten steel from sticking to the inner wall, and at the same time improve the surface quality of the slab. When bonding occurs, the vibration can force demoulding, eliminate bonding, and actually play the role of "demoulding". Mold vibration is a prerequisite for successful pouring and an important milestone in the development of continuous casting. The inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/053
Inventor 王建军周俐李卫国
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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