Ultrasonic degassing of aluminum alloys

Ultrasonic degassing of aluminum alloys

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Cost-saving ultrasound degassing now possible in

Citation: Cost-saving ultrasound degassing now possible in continuous processing of aluminum melt (2015, July 8) retrieved 18 March 2020 from https://phys.org This document is subject to copyright.

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A New Approach to Ultrasonic Degassing to Improve

Ultrasonic degassing of liquid metals has been studied over the last years, but it has been limited to laboratorial scale experiments of low volumes of melt. In this work, the combined effect of acoustic cavitation with metal agitation induced by the mechanical vibration ...

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Cost-saving ultrasound degassing now possible in

Having proved that ultrasound degassing of molten aluminum alloys is cleaner, greener and cheaper than current methods, a team of scientists has now taken the breakthrough a step further.

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Degassing molten aluminium Result In Brief CORDIS

- 6th International Light Metals Technology (LMT) Conference2013, the article Effect of Ultrasonic Melt Treatment on Degassing and Structure of Aluminium Alloys Written by Noe Alba-Baena, Thomas Pabel, Natalia Villa-Sierra and Dmitry Eskin, was presented

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(PDF) Ultrasonic Degassing of Aluminum Alloys

In order to investigate the effects of ultrasonic vibration on degassing of aluminum alloys, three experimental systems have been designed and built: one for ultrasonic degassing in open air, one ...

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Overview of Ultrasonic Degassing Development

Abstract Ultrasonic degassing attracts industrial attention as an alternative to Ar-rotary and Ar-lancing degassing, offering environmentally friendly, economical and efficient technology. This paper gives a brief historical overview of ultrasonic degassing development in ...

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Ultrasonic Processing of Materials - Semantic Scholar

ultrasonic processing of materials, and to demonstrate key applications in the areas of grain refinement of alloys during solidification and degassing of alloy melts. This study focused on two classes of materialsaluminum alloys and steelsand demonstrated

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Ultrasonic Processing of Metal Melts - Hielscher

Ultrasonic degassing reduces the porosity of the metal achieving thereby a higher material density in the final metal / alloy product. Ultrasonic degasification of aluminum alloys raise the ultimate tensile strength and ductility of the material.

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Effect of Ultrasonic Melt Treatment on Degassing and

Ultrasonic processing is known to be an efficient means of aluminium melt degassing and structure modification with additional benefits of being economical and environment friendly. This paper reports on the kinetics of ultrasonic degassing effect of foundry alloys.

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Evaluation of ultrasonic aluminium degassing by

Read "Evaluation of ultrasonic aluminium degassing by piezoelectric sensor, Journal of Materials Processing Technology" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Ultrasonic Treatment of Light Alloy Melts, Second Edition

Spawned by growing interest in ultrasonic technology and new developments in ultrasonic melt processing, the Second Edition of Ultrasonic Treatment of Light Alloy Melts discusses use of ultrasonic melt treatment in direct-chill casting, shape casting, rapid solidification, zone refining, and more, exploring the effects of power ultrasound on melt degassing, filtration, and refinement in ...

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Degassing effect of ultrasonic vibration in molten melt and semi-solid slurry of Al-Si alloys

201 Research & Development August 2012 Degassing effect of ultrasonic vibration in molten melt and semi-solid slurry of Al-Si alloys Male, born in 1961, Ph.D., Professor. He obtained his Ph.D. at Waseda University, Japan. His research interests mainly focus on

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Ultrasonic Degassing of Aluminium Alloys: Basic Studies and

Ultrasonic Degassing of Aluminium Alloys: Basic Studies and Practical Implementation Dmitry Eskin1,2, Noe Alba-Baena3, Thomas Pabel4, Manel da Silva5,6 1 Brunel University, BCAST, Uxbridge, UB8 3PH, U.K. 2 Tomsk State University, Tomsk, 634050 Russia

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Ultrasonic Degassing of Molten Aluminium Sialon

Effectively ultrasonic degassing reduces the porosity of the cast increasing both strength and ductility. Results ultrasonic degassing molten aluminium: Improved metal homogenization, grain refinement and mixing of new alloys. Excellent ultrasonic degassing

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2 Effects of ultrasonic field and vacuum on degassing of

Ultrasonic degassing Fig. 3 shows the efficiency of ultrasonic degassing in A356 alloy melts under different volumes of aluminum melt at 700 C under humidity 60%. Data marked with filled triangles, squares, and filled circle in Fig. 3 show the efficiency of ultrasonic degassing in the melt of 0.2 kg, 0.6 kg and 2 kg, respectively.

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Effects of Electromagnetic Field and Re-Melting on

The results show that the degassing efficiency increased with the decreasing of pulling-down rate, and after re-melting, the porosity area fraction of aluminum alloy was further reduced. The mechanical properties of aluminum alloys, such as tensile strength and

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Degassing of Aluminum Alloys Using Ultrasonic

The research was intended to lead to a better fundamental understanding of the effect of ultrasonic energy on the degassing of liquid metals and to develop practical approaches for the ultrasonic degassing of alloys. The goals of the project described here were to evaluate core principles, establish a quantitative basis for the ultrasonic degassing of aluminum alloy melts, and demonstrate the ...

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Degassing of Aluminum Alloys Using Ultrasonic

@article{osti_886703, title = {Degassing of Aluminum Alloys Using Ultrasonic Vibration}, author = {Meek, T. T. and Han, Q. and Xu, H.}, abstractNote = {The research was intended to lead to a better fundamental understanding of the effect of ultrasonic energy on the degassing of liquid metals and to develop practical approaches for the ultrasonic degassing of alloys.

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Ultrasonic Processing of AluminumMagnesium Alloys

This study evaluated the effect of UltraSonic Treatment (UST) on a range of AlMg alloys. Previous research was carried out on single magnesium compositions. However, the amount and type of the alloy addition are known to affect the grain size even under UST ...

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US8574336B2 - Ultrasonic degassing of molten metals -

such devices can be used to remove dissolved gasses and impurities from molten metals. US8574336B2 - Ultrasonic degassing of molten metals - Google Patents Ultrasonic degassing of molten metals Download PDF Info US8574336B2 US8574336B2 ...

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Ultrasonic Degassing of Aluminum Alloys Scientific.Net

1/5/2014· This article discusses research on using power ultrasound for degassing of molten aluminum alloys. At least three types of technique have been developed for ultrasonic degassing. The type deals with degassing using power ultrasound alone. Degassing in a small ...

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Ultrasonic Degassing Sialon Ceramics

We have developed a new technology for ultrasonic degassing molten aluminum that applies high power ultrasonic energy to large, heavy irregular mass or un-tuned mechanical systems such as extruder, syalon sialon silicon nitride drawing die, mold tools, metal

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Aluminum Degassing Methods & Measurements

All things being equal, a higher temperature of an aluminum melt will increase the necessary degassing time. Alloying elements also can have an effect on hydrogen solubility. The effect of alloying elements is characterized by changes in the alloy correction factor, with some common casting alloys show in

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Ultrasonic Degassing of Molten Aluminium Sialon

20% increase in production speed, no centerline segregation!New publication about Ultrasonic Degassing of molten aluminium. REGISTER NOW. Menu English Français Deutsch Español Ting Vit Italiano () Русский Português Home About us

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Ultrasonic Degassing Using In Aluminum Casting Process

Ultrasonic degassing using in aluminum casting process 2015-05-06 21:49:52 Our new equipment -Ultraosonic degassing device with ceramic sonotrode Any gas (unless intentionally blasted through the melt) is usually completely dissolved in the liquid metal and ...

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Aluminum Technology: Effects of ultrasonic vibration on

26/2/2008· Recent research on aluminum degassing Hanbing Xu, Qingyou Han and Thomas T. Meek, Effects of ultrasonic vibration on degassing of aluminum alloys, Materials Science and Engineering: AVolume 473, Issues 1-2, , 25 January 2008, Pages 96-104. ()

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Effects of ultrasonic vibration on degassing of aluminum

In order to investigate the effects of ultrasonic vibration on degassing of aluminum alloys, three experimental systems have been designed and built: one for ultrasonic degassing in open air, one for ultrasonic degassing under reduced pressure, and one for ultrasonic ...

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A new approach to ultrasonic degassing to improve the mechanical properties of aluminium alloys

A new approach to ultrasonic degassing to improve the mechanical properties of aluminium alloys H. Pugaa*, J. Barbosa a, J. C. Teixeira , M. Prokic b aCT2M Centre for Mechanical and Materials Technologies, Universidade do Minho, Azurém 4800-058

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Overview of ultrasonic degassing development

Bradfield [7] reported the works of Turner on degassing of molten aluminum and its alloys by direct introduction of ultrasonic oscillations into the meltat 15 kHz and 26 kHz. In 1950 Eisenreich [ 8] compared vacuum ultrasonic degassing with vacuum degassing

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Ultrasonic Degasing and Processing of Aluminum Part II

Abstract At the TMS conference in 2013 the paper Ultrasonic Degasing and Processing of Aluminum was presented (Rundquist & Manchiraju, Ultrasonic Degasing and Processing of Molten Aluminum, 2013). Samuel, A. (1993). The Reduced Pressure Test as a ...

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Ultrasonic Treatment of Light Alloy Melts : Georgy I.

Georgy I. Eskin, Dr. Sc, Ph.D, is a world-renowned specialist in the application of ultrasound in metals processing, specifically in degassing, filtration, and grain refinement during casting of aluminum and magnesium alloys. He holds over 100 patents in ultrasonic ...

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US20070235159A1 - Degassing of molten alloys with the

An apparatus and method are disclosed in which ultrasonic vibration is used to assist the degassing of molten metals or metal alloys thereby reducing gas content in the molten metals or alloys. High-intensity ultrasonic vibration is applied to a radiator that creates ...

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