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High sound intensity ultrasonic processing apparatus for metal and alloy solidification and processing method thereof

An ultrasonic treatment and high-sound technology, applied in the field of high-sound-intensity ultrasonic treatment devices, can solve problems such as poor ultrasonic treatment effect, resonance frequency drift, impedance and frequency mismatch, achieve degassing and component homogenization, and solve frequency drop Drift, to achieve the effect of grain refinement

Active Publication Date: 2009-05-20
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the ultrasonic coupling head is in the high-temperature melt for a long time, its resonant frequency will drift significantly, which will lead to a mismatch between impedance and frequency, and finally make the ultrasonic treatment effect poor

Method used

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  • High sound intensity ultrasonic processing apparatus for metal and alloy solidification and processing method thereof
  • High sound intensity ultrasonic processing apparatus for metal and alloy solidification and processing method thereof
  • High sound intensity ultrasonic processing apparatus for metal and alloy solidification and processing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] (Embodiment 1) When directly used in the solidification situation of metal and alloy melt sand molds, the curved coupling head 5 is directly inserted at the pouring riser, and a coupling head 5 is placed at a pouring riser, and the inside of the coupling head is a solid structure that is Yes, as attached figure 1 As shown, the position of the container 1 at this time is equivalent to the sand mold.

Embodiment 2

[0033] (Embodiment 2) When being directly used for semi-continuous casting of metal and alloy melts, its number of couplings varies according to the size of the crystallizer; when it is a circular crystallizer and the diameter is less than 300mm, a coupling head can be used; when the diameter When the diameter is greater than 300mm but less than 1200mm, 2 to 4 coupling heads can be used, and the coupling heads can be evenly distributed on the cross-section; if the diameter increases further, the number of coupling heads can be appropriately increased according to the actual situation; when it is made of metal and alloy For ingots or flat ingots, if the cross-sectional length dimension is between 300 and 500 mm, a curved coupling head should be selected.

Embodiment 3

[0034] (Embodiment 3) When it is directly used in continuous casting and rolling of metals and alloys, the number of coupling heads can be determined according to the size of the front box and the size of the rolls. Generally, 1 to 3 curved coupling heads are arranged in the front box.

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Abstract

The invention provides an ultrasonic processing device with high sound intensity, which is used for grain refining, degassing and ingredient homogenization when the metal and the alloy are solidified and comprises an ultrasonic generator, a transducer, an amplitude variable rod and a coupling head; wherein, the ultrasonic generator comprises a frequency phase locking tracking module, which is used for automatically carrying out tracking and detection to working frequency of the ultrasonic generator and adjusting matching frequency. By adopting the frequency phase locking tracking module, the decrease and drift problems of frequency are solved and even in different high-temperature melts, the ultrasonic effect same as that of starting at rated frequency can also be obtained, thus realizing grain refining, degassing and ingredient homogenization when the metal and the alloy are solidified.

Description

technical field [0001] The invention relates to a high-sound-intensity ultrasonic processing device and a processing method thereof, in particular to a high-sound-intensity ultrasonic processing device and a processing method thereof which can realize crystal grain refinement, degassing and composition homogenization when metals and alloys are solidified. Background technique [0002] During the solidification of metals and alloys, how to effectively achieve continuous refinement of grains, more thorough degassing and more uniform composition has always been a hot topic of research. This is because, for the solidification of various metals and alloys, although there are respectively applicable grain refiners and respective degassing methods and component homogenization methods, there are still different degrees of unsatisfactory refining effects, Incomplete degassing, uneven composition and other problems. [0003] For example, for aluminum and aluminum alloys, although the...

Claims

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Application Information

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IPC IPC(8): C22F3/02B22D27/00
Inventor 李建国何北星
Owner TSINGHUA UNIV
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