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An ultrasonic introduction device for processing high temperature melt

An introduction device and ultrasonic technology, applied in the field of high temperature metal melt solidification and forming, can solve problems such as short service life, achieve good resistance to cold and thermal shock, strengthen mechanical vibration and acoustic flow effects, and prolong life.

Active Publication Date: 2016-10-05
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of short service life of the ultrasonic guide rod when processing high-temperature metal melts, and provide an ultrasonic guide device that can realize continuous ultrasonic treatment of high-temperature metal melts

Method used

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  • An ultrasonic introduction device for processing high temperature melt
  • An ultrasonic introduction device for processing high temperature melt

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Use the ultrasonic induction device for ultrasonic treatment of aluminum alloy continuous casting and rolling: install the ultrasonic introduction device next to the launder at the front of the nozzle of the horizontal casting and rolling machine, and let the silicon nitride tool head (3) insert the aluminum melt in the launder ( At about 700°C), the first-stage horn of the T-shaped combined horn (2) in the ultrasonic induction device has a diameter of 50 mm and a length of 260 mm, and the second-stage horn has a middle diameter of 60 mm and a diameter of 50 mm at both ends. The length is 130mm; the silicon nitride tool head (3) has a diameter of 50mm and a length of 130mm. Turn on the ultrasonic controller, gradually increase the power to the maximum output value allowed by the ultrasonic generator, and then work continuously for 24 hours. After 24 hours, the transducer (1) in the ultrasonic introduction device still works normally, and the silicon nitride tool head at...

Embodiment 2

[0022] Use the ultrasonic induction device for ultrasonic treatment of continuous casting of alloy steel: install the ultrasonic introduction device next to the mold of the continuous casting machine, and insert the silicon nitride tool head (3) into the steel melt (about 1600°C) in the mold, The first-stage horn of the T-shaped combined horn (2) in the ultrasonic introduction device has a diameter of 50mm and a length of 270mm, and the second-stage horn has a middle diameter of 60mm, a diameter of 50mm at both ends, and a length of 135mm; silicon nitride The tool head (3) is 50mm in diameter and 135mm in length. Turn on the ultrasonic controller, gradually increase the power to the maximum output value allowed by the ultrasonic generator, and then work continuously for 2 hours to process 25 tons of molten steel. After 2 hours, the transducer (1) in the ultrasonic introduction device still works normally, and the silicon nitride tool head at the output end of the T-shaped horn...

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Abstract

The invention provides an ultrasonic introduction device for continuously processing a high-temperature metal melt with ultrasonic wave. The device mainly comprises an energy converter (1), a T-shaped combined amplitude-change pole (2) and a vertical ceramic tool head (3); the T-shaped combined amplitude-change pole comprises a first-stage horizontal amplitude-change pole and a second-stage vertical amplitude-change pole, wherein the first-stage amplitude-change pole is a straight bar for transmitting longitudinal mechanical vibration, and while the second-stage amplitude-change pole is a double-head straight bar for transmitting transverse mechanical vibration; the vertical ceramic tool head, the energy converter and the T-shaped combined amplitude-change pole are all connected between the first-stage amplitude-change pole and the seconds-stage amplitude-change pole through lead screw. With the adoption of the device, the direct thermal radiation of the high-temperature metal melt to the energy converter and the amplitude-change pole can be overcome; the thermal shock of the high-temperature metal melt to the energy converter can be reasonably avoided; in addition, the corrosion of the metal melt to the tool head can be obviously reduced; therefore, long-term efficient transmission of ultrasonic wave in the high-temperature metal melt can be realized.

Description

technical field [0001] The invention relates to the field of solidification and forming of high-temperature metal melts, in particular to a high-power ultrasonic energy transmission device in high-temperature metal melts, which can be used for industrial production of ultrasonic casting. Background technique [0002] Ultrasound can be divided into inspection ultrasound and power ultrasound according to its function. In the metallurgical process, low-frequency, high-power ultrasound is often used, also known as power ultrasound. When ultrasound is transmitted in a metal melt, the inside of the metal melt Alternating vibration is generated to form a certain cavitation effect and acoustic flow effect, thereby removing oxidized inclusions and harmful gases in the metal melt, refining grains, reducing composition segregation, etc. [0003] Although scholars at home and abroad have done a lot of research on the ultrasonic treatment of low-melting point metals such as aluminum allo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D27/20C22F3/02
Inventor 石琛毛大恒毛向辉
Owner CENT SOUTH UNIV
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