Ultrasonic crystal metal grain refining equipment

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  • 20Khz Ultrasonic Soldering Equipment Ultrasonic

    High quality 20Khz Ultrasonic Soldering Equipment Ultrasonic Metal Tinning Grain Refinement from China, China's leading ultrasonic soldering machine product, with strict quality control ultrasonic soldering station factories, producing high quality ultrasonic soldering station products.

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  • ULTRASONIC GRAIN REFINING - HANS TECH, LLC

    The technical challenges addressed in the present invention for grain refining are (1) the coupling of ultrasonic energy to the molten metal for extended times, (2) maintaining the natural vibration frequencies of the system at elevated temperatures, and (3) increasing the grain refining efficiency of ultrasonic grain refining when the ...

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  • Hangzhou Precision Machinery Co.,Chengli - ultrasonic ...

    Hangzhou Precision Machinery Co.,Chengli, Experts in Manufacturing and Exporting ultrasonic dispersion equipment, ultrasonic homogenizer and 583 more Products. A Verified CN Gold Supplier on Alibaba.com.

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  • (PDF) Grain refining of Ti-6Al-4V alloy fabricated by ...

    2021-1-21 · Grain refining of Ti-6Al-4V alloy fabricated by laser and wire additive manufacturing assisted with ultrasonic vibration January 2021 Ultrasonics Sonochemistry 73(10):105472

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  • ULTRASONIC GRAIN REFINING AND DEGASSING

    In one embodiment of the invention, the above-described ultrasonic grain refining is combined with above-noted ultrasonic degassing to remove impurities from the molten bath before the metal is cast. FIG. 9 is a schematic depicting an embodiment of the invention utilizing both ultrasonic degassing and ultrasonic grain refinement.

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  • How ultrasonic metal melting equipment works

    Ultrasonic metal melting equipment is beneficial for degassing metal solutions, removing impurities, refining grains, and strengthening the leaching process

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  • Grain refining of Ti-6Al-4V alloy fabricated by laser

    It was concluded that the microstructure of Ti-6Al-4V alloy is converted to fine equiaxed crystal from coarse columnar crystal due to the effect of ultrasonic energy field on the molten pool of deposition layer in the process of additive manufacturing, since the formation of acoustic cavitation and streaming in the liquid metal by high ...

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  • A Review on Grain Refinement of Aluminum Alloys ...

    2021-3-23 · Therefore, grain refining of aluminum is regarded as a key technique in aluminum processing industry. ... The limitations of high-power ultrasonic equipment and high-temperature resistance ultrasonic horn restrict the large-scale ... It was found that non-equilibrium crystal could be obtained when liquid metal was cooled at an adequate cooling ...

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  • The effect of solute on ultrasonic grain refinement of ...

    2010-7-15 · Fig. 1 (a–d) shows the average grain size (d ¯) versus solute content for binary Mg–Al and Mg–Zn alloys solidified without and with ultrasonic irradiation at I max =1700 W cm −2.Coarse dendritic structures were observed without ultrasonic irradiation. In contrast, ultrasonic irradiation resulted in fully equiaxed grain structures and substantial refinement for each alloy.

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  • Fundamental studies of ultrasonic melt processing ...

    2019-4-1 · 1. Introduction. Ultrasonic melt processing (USP) has been proven on the industrial scale to be an effective method for degassing, filtration, and grain refinement of aluminium and magnesium alloys , , , .In the past, the challenge of treating large melt volumes was met by using multiple ultrasonic sources , .This complex and energy-demanding approach works well in batch degassing operations ...

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  • Top Efficient customer premise equipment

    China manufacture Precious metal refining equipment Purification equipment for precious metals. ... Factory price gold refining equipment. Up to 5 years warranty. 2,600.00 Set. ... Ultrasonic crystal metal grain refining equipment. Fast dispatch Ready to Ship. 4,250.00 Set. 1 Set ...

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  • ULTRASONIC GRAIN REFINING AND DEGASSING

    In one embodiment of the invention, the above-described ultrasonic grain refining is combined with above-noted ultrasonic degassing to remove impurities from the molten bath before the metal is cast. FIG. 9 is a schematic depicting an embodiment of the invention utilizing both ultrasonic degassing and ultrasonic grain refinement.

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  • Best Ultrasonic Metal Melt

    Large Scale Ultrasonic Homogenizer Ultrasonic Processor For Metal. High-power ultrasonic metal melt processing system plays a important role in ultrasonic metal processing, ultrasonic grain refinement, ultrasonic metal solidification, ultrasonic exhaust bubbles, ultrasonic crystal, ultrasonic cavitation, ultrasonic casting, ultrasonic coagulating tissue, ultrasonic metal casting, etc.

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  • Ultrasonic Aluminum Solution Aluminum Liquid

    Ultrasonic Aluminum Solution Aluminum Liquid Treatment Refinement Mixing Ultrasonic Mixer For Silver Refining , Find Complete Details about Ultrasonic Aluminum Solution Aluminum Liquid Treatment Refinement Mixing Ultrasonic Mixer For Silver Refining,Ultrasonic Mixer For Silver Refining,Ultrasound Aluminum Liquid Treatment Refinement Mixing,Ultrasound Treatment For Alloy Crystallization ...

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  • Criteria of Grain Refinement Induced by Ultrasonic

    It is well known that ultrasonic melt treatment (UST) promotes grain refinement in aluminum alloys. Cavitation-aided grain refinement has been studied for many years; however, it is still not being applied commercially. The current article summarizes the results of experimental work performed on various alloying systems at different stages of solidification.

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  • Effect of sonotrode material on grain refining of Mg–3Al ...

    Effect of sonotrode material on grain refining of Mg–3Al and Mg–9Al alloys by ultrasonic melt treatment Jeong IL Youn 1*, Young Ki Lee , Young Jig Kim *, and Jeong Wook Park2 1School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, Korea 22R&D Center, DR AXION Co.,Chengli, Ulsan 689-892, Korea *E-mail: [email protected]; [email protected]

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  • Effects of Ultrasonic Introduced by L-Shaped Ceramic ...

    After ultrasonic treatment with L-shaped sonotrode, the macroscopic grain size grades in the middle and the center were significantly reduced, which can effectively refine and homogenize the grain structure, thus improving the macro-grain structure of the ingot, with a better grain refinement effect than that of the straight-rod sonotrode.

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  • Aluminum Casthouse Technology - Light Metal Age

    2020-3-18 · US9481031 — ULTRASONIC GRAIN REFINING — Hans Tech, LLC (USA) — The present invention is related to a method for producing metal castings with controlled grain size, a system for producing the metal castings, and products obtained by the metal castings. A molten metal processing device including a molten metal containment structure for ...

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  • Theory and practice of grain refining for aluminium

    · Sand and investment castings where the long solidification times cause large grain growth and difficult feed paths without optimised grain refining. Grain refinement mechanism in aluminium alloys. Target of all melt treatment procedures is an improvement of mechanical properties. Grain refinement affects the α-mixed crystal in the alloy.

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  • UT 2: Training For Nondestructive Testing - Variables ...

    2011-5-26 · Although we generally consider the metal to be homogeneous, on a microscopic scale the boundaries formed by the edges of the grains make it in-homogenous. For an ultrasonic wave each crystal presents a different acoustic impedance depending on orientation and degree of inter grain …

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  • Criteria of Grain Refinement Induced by Ultrasonic

    It is well known that ultrasonic melt treatment (UST) promotes grain refinement in aluminum alloys. Cavitation-aided grain refinement has been studied for many years; however, it is still not being applied commercially. The current article summarizes the results of experimental work performed on various alloying systems at different stages of solidification.

    Get Price
  • Effect of Ultrasound on Heterogeneous Nucleation in

    2020-4-30 · The grain refinement mechanism under the influence of the ultrasound has been investigated more in the casting field. High-frequency and high-amplitude oscillations result in an ultrasonic cavitation and agitation in metal melt [].The grain refinement mechanisms with ultrasonic treatment mainly consist of an increased nucleation rate and dendrite fragmentation [11, 12].

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  • Optimizing the Microstructure and Mechanical

    Ultrasonic treatment (UST) is one of the most effective methods used in refining metal grains [14,15]. The cavitation effect produced by ultrasonic treatment can form lots of cavitation bubbles in the molten metal, resulting in internal evaporation of liquid and local temperature fluctuation, which are advantageous to the refinement of grains ...

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  • Best 20Khz Ultrasonic Products,suppliers,manufacturers

    20Khz Ultrasonic Graphene Extraction Equipment. Graphene is composed By carbon atoms lined closely in hexagonal honeycomb lattice of single-layer two dimensional planar structure,was the basic structure of fullerenes, carbon nanotubes and graphite, so it is called the mother of carbon materials

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  • Influences of Super-Gravity Field on Aluminum Grain

    The influence of a super-gravity field on metal grain refining has been mainly investigated using industrial pure aluminum as an example. The relationship between the super-gravity field (gravity coefficient of less than 1000) and the grain size in the equiaxed crystal zone was studied, and the corresponding mechanism for grain refining was discussed in detail. The effect of the super-gravity ...

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  • Materials | Free Full-Text | The Refining Mechanism of ...

    The progress in high-speed photography of ultrasonic cavitation bubbles and synchrotron radiation X-ray imaging of crystal growth in molten metal was reviewed and discussed. It was proposed to adopt in-situ investigation of mechanism of ultrasound in liquid metal medium by combining high-speed photography and synchrotron radiation X-ray imaging.

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  • Improved microstructure and mechanical properties of

    There is far less study of the refining effect of super gravity fields on solidification structures of metals than of the effects of electrical currents, magnetic and ultrasonic fields. Moreover, the refining mechanisms of super gravity are far from clear. This study applied a super gravity field to Al-Cu alloys to investigate its effect on refining their structures and the mechanism of ...

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  • Gesswein | Precision Tools & Equipment

    2021-3-30 · Grain Size. 1. Introduction Mechanical surface treatment operations play a pivotal role in metal forming industries. The purpose of these processes is to enhance tribological properties of materials [1]According to the Hall-Petch equation, grain refining can be an effective way of improving mechanical properties * Corresponding author:

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  • Effect of Ultrasound on Heterogeneous Nucleation in

    2020-4-30 · The grain refinement mechanism under the influence of the ultrasound has been investigated more in the casting field. High-frequency and high-amplitude oscillations result in an ultrasonic cavitation and agitation in metal melt [].The grain refinement mechanisms with ultrasonic treatment mainly consist of an increased nucleation rate and dendrite fragmentation [11, 12].

    Get Price
  • Criteria of Grain Refinement Induced by Ultrasonic

    Previous investigations have clearly demonstrated that ultrasonic vibrations imposed upon the solidifying metal result in structural changes, including grain refinement, suppression of columnar grain structure, increased homogeneity, and reduced segregation.[2,7,12] However, further research is essential to identify the mechanism of the ...

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  • Improved microstructure and mechanical properties of

    2021-3-30 · Grain Size. 1. Introduction Mechanical surface treatment operations play a pivotal role in metal forming industries. The purpose of these processes is to enhance tribological properties of materials [1]According to the Hall-Petch equation, grain refining can be an effective way of improving mechanical properties * Corresponding author:

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  • Microstructure and mechanical properties of ADC12 ...

    2020-12-18 · prepared by high-intensity ultrasonic assisted casting were investigated. The results indicated that high-intensity ultrasound can promote the uniform distribution of GNPs in the melt, resulting in refining the α(Al) phase and Si phase. The optimal addition of GNPs was 0.9 wt.%, and the optimal ultrasonic time was 12 min.

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  • Gesswein | Precision Tools & Equipment

    2010-8-12 · AS 1065-1988 Non-destructive__ testing - Ultrasonic testing of carbon and low alloy steel forging... Standard make it possible to locate the discontinuities in forgings which have been machined, and which have received a grain-refining heat treatment. In addition, ...

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  • ASTM International - Standards Worldwide

    Gesswein has been the number one resource of high quality jewelry making tools and supplies, mold & die polishing and repair tools at competitive prices since 1914. Same day …

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  • Titanium processing - The metal and its alloys |

    2018-9-11 · Ultrasonic -assisted brazing of Al-Ti dissimilar alloy by filler metal with large semi-solid temperature range Materials and Design 2016,95 :296-305 SCI,EI Xiaoguang Chen, Ruishan Xie, Zhiwei Lai, Lei Liu, Guisheng Zou, Jiuchun Yan 216 Optimization Design of

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  • High Temperature Ultrasonic Transducers | Products ...

    calls for flexibility in your equipment. Look for a liquid flow meter clamp-on sensors with a high-powered ultrasonic pulse and digital signal processing that requires just one set of transducers for a wide range of pipe sizes and materials like metal, plastic, and concrete. These baseline features

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  • Gesswein | Precision Tools & Equipment

    Gesswein has been the number one resource of high quality jewelry making tools and supplies, mold & die polishing and repair tools at competitive prices since 1914. Same day …

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  • Microstructure and mechanical properties of ADC12 ...

    2020-12-18 · prepared by high-intensity ultrasonic assisted casting were investigated. The results indicated that high-intensity ultrasound can promote the uniform distribution of GNPs in the melt, resulting in refining the α(Al) phase and Si phase. The optimal addition of GNPs was 0.9 wt.%, and the optimal ultrasonic time was 12 min.

    Get Price
  • Toward the development of Mg alloys with

    2. Influence of grain size on the strength of Mg alloys. Metal deformation is mainly achieved through dislocation slip and climb under normal conditions. Most of the grain boundary (GB) can be regarded as the atomically disordered zone, that is, the translational and rotational symmetries of the crystal are broken at the GB.

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  • Jewelry Engraving Tools | Laser Engravers | Gesswein

    Gesswein offers professional engraver machines, engraver tools, and engraver supplies for traditional hand engraving as well as air engravers, electric engravers and computerized engraving machines, laser engravers, photo engraving and impact printers.

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  • Metal Forming Processes – IspatGuru

    The different metal forming processes are connected with a large variety of forming equipment which includes amongst others (i) rolling mills for plate, strip, bars, and shapes, (ii) mills for profile rolling from strip, (iii) ring rolling mills, (iv) thread rolling and surface …

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  • Rio Grande Jewelry Supply

    2021-3-11 · The grain refining is attributed to the dislocation accumulation and subsequent dynamic recrystallization. The (211) and (220) peak intensities are weakened. It is deduced that together with the recrystallization, the fine grains will transfer towards the slip plane and …

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  • ASTM International - Standards Worldwide

    2017-7-13 · EN 12680-2 高强度铸钢 UT.pdf,Saga intranet pour : BUREAU VERITAS FE045259 ISSN 0335-3931 European standard NF EN 12680-2 May 2003 French standard Classification index: A 04-162-2 ICS: 77.040.20 Founding Ultrasonic examination Part 2

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