• Title/Summary/Keyword: non-ferrous metal

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Porous Metals of Northwest Institute for Non-ferrous Metal Research

  • Huiping, Tang;Jichang, Liao;Jilei, Zhu
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09b
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    • pp.903-904
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    • 2006
  • In recent years, the research in porous metal got rapid development in China, especial in Northwest Institute for Non-ferrous Metal Research (NIN). Many porous metals with different raw material and different shapes were developed, which successfully employed in many fields. We believe we will earn more rapid development in the future.

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Development of Cutting Tool in Non-ferrous Metals at Turning (선삭에서 비철금속 절삭용 공구의 개발)

  • Chung, J.S.;Jun, J.U.;Ha, M.K.
    • Journal of Power System Engineering
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    • v.6 no.1
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    • pp.82-87
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    • 2002
  • Not only ferrous but also non-ferrous materials such as aluminum, brass, plastic and woods need cutting operation in recent manufacturing industry. Over the past few years a considerable number of studies have been made on non-ferrous metal cutting. But more study is required to meet various engineering needs. The purpose of this paper is to preform an experiment on the influence of feed-rate adjustment and side rake angle in turning operations from non-ferrous metals. As a result, the surface roughness was reduced when a side-rake angle increases and feed-rate decreases in the case of the plastic, brass, aluminum, and paulownia. Therefore, this papers develop a new type bite that be used to adjust side-rake angle.

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Current Status on the Recycling of Domestic Major Non-ferrous Metal Scraps (국내 범용 비철금속 스크랩의 리싸이클링 현황)

  • Park, Hyungkyu;Sohn, Hosang
    • Resources Recycling
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    • v.24 no.5
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    • pp.72-79
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    • 2015
  • Since there are many kinds of non-ferrous metal, it is difficult to investigate the current status on the recycling of all the non-ferrous metals. Therefore, the survey is confined to some commercially important non-ferrous metals such as copper, aluminum, zinc, lead, nickel and magnesium in this article. Domestic demand and production of these non-ferrous metals in recent years (2010-2014) and recycling ratio of the scraps are estimated briefly here.

Survey on the Recycling of Domestic Commercial Non-ferrous Metal Scraps (국내(國內) 범용(凡用) 비철금속(非鐵金屬)스크랩 리싸이클링 현황(現況))

  • Park, Hyungkyu
    • Resources Recycling
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    • v.22 no.6
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    • pp.81-86
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    • 2013
  • Since there are many kinds of non-ferrous metal, it is difficult to investigate the current status on the recycling of all the non-ferrous metals. Therefore, the survey is confined to some commercially important non-ferrous metals such as copper, aluminum, zinc, lead, nickel and magnesium in this article. Domestic demand and production of these non-ferrous metals in recent years(2010-2012) and recycling ratio of the scraps are estimated briefly here.

Performance Determination of Novel Design Eddy Current Separator for Recycling of Non-Ferrous Metal Particles

  • Fenercioglu, Ahmet;Barutcu, Hamit
    • Journal of Magnetics
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    • v.21 no.4
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    • pp.635-643
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    • 2016
  • Improvements were made in the study for the design of the conventional Eddy Current Separator (ECS) used for separating small sized non-ferrous particles in the waste. These improvements include decreasing the air gap between the material and magnetic drum, making the drum position adjustable and placing the splitter closer to the drum. Thus, small particles were separated with high efficiency. The magnetic drum was removed from inside the ECS conveyor belt system as design change and was placed as a separate unit. Hence, the force generated on the test material increased by about 5.5 times while the air gap between the non-ferrous materials and drum decreased from 3 mm to 1 mm. The non-metal material in the waste is separated before the drum in the novel design. Whereas non-ferrous metal particles are separated by falling into the splitter as a result of the force generated as soon as the particles fall on the drum. Every material that passes through the drum can be recycled as a result of moving the splitter closer to the contact point of the drum. In addition, the drum can also be used for the efficient separation of large particles since its position can be adjusted according to the size of the waste material. The performance of the novel design ECS was verified via analytical approaches, finite element analysis (FEA) and experimental studies.

A Study on the Volatility Spillover Effect in International Non-Ferrous Metals Futures Price (국제 비철금속 선물가격의 변동성 전이효과에 관한 연구)

  • Guo-Dong Yang;Yin-Hua Li;Rui Ma
    • Korea Trade Review
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    • v.47 no.4
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    • pp.177-195
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    • 2022
  • This study analyzed the volatility spillover effect between international non-ferrous metal futures markets using the BEKK-GARCH model. Statistical data are futures price data of copper (CU), aluminum (AL), nickel (NI), tin (SN) from Shanghai Futures Exchange (SHFE) and London Metal Exchange (LME) from April 1, 2015 to December 31, 2021. Combining the research results, first, in the case of copper, aluminum, and nickel, it was found that there was a two-way volatility spillover effect between the Shanghai and London markets, and the international influence of the London market was greater. Second, in the case of the tin, it was found that the Shanghai market has a volatility spillover effect on the London market from stage I, and it is strengthened in stage II. Third, in the case of nickel, it was found that there was a two-way volatility spillover effect in the first stage, but in the second stage, the London market had a unidirectional volatility spillover effect with respect to the Shanghai market. This study confirmed that China's influence in the international non-ferrous metal futures market is gradually increasing. In addition, it suggested that international investors can engage in arbitrage and hedging using China's non-ferrous metal futures market.

A Study on Cutting Character of Side-rake Angle Adjustment at Non-ferrous Metals in Turning (비철금속의 선삭에서 측면경사각의 변화에 대한 절삭특성에 대한 연구)

  • Jung, Jin-Seo;Jun, Jae-Uhk;Han, Gu-Sang;Seo, Sang-Ha;Ha, Man-Kyung
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.2 no.1
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    • pp.39-44
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    • 2003
  • In the present industry, there are necessary to cut not only iron metals but also non-ferrous metals such as aluminum, brass, plastic and wood(Paulownia) therefore it had been made the studies of non-ferrous metals by many scientists. The purpose of this study is to conduct the basic experiment about influencing of the feedrate adjustment and the change of the side rake angle at turning of non-ferrous metals. As the results, the surface roughnesses and Cutting force adjustments were on the decrease with a side-rake angle and feedrate diminution in the case of the plastic, brass, aluminum, and paulownia.

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A Study on Cutting Character of Side-rake angle Adjustment at Non-ferrous Metals in Turning (비철금속의 선삭에서 측면경사각의 변화에 대한 절삭특성에 대한 연구)

  • 전재억;정진서;권혁준;하만경
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.929-934
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    • 1997
  • In the present industry, there are necessary to cut not only iron metals but also non-ferrous metals such as aluminum, brass, plastic and wood(Paulownia).therefore it had been made the studies of non-ferrous metals by many scientists. we hope this kind of study will continue. The purpose of this study is to conduct the basic experiment about influencing of the feedrate adjustment and the change of the side rake angle at turning of non-ferrous metals. As the results, the surface roughnesses and Cutting force adjustments were on the decrease with a side-rake angle and feedrate diminution in the case of the plastic, brass, aluminum, and paulownia

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Current Status on the Recycling of Domestic Nonferrous Metal Scraps (국내(國內) 비철금속(非鐵金屬) 스크랩 리싸이클링 현황)

  • Park, Hyung-Kyu;Shin, Hee-Duck
    • Resources Recycling
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    • v.18 no.1
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    • pp.52-57
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    • 2009
  • Since there are many kinds of non-ferrous metal, it is difficult to investigate the current status on the recycling of non-ferrous metals. Therefore, the survey is confined to some commercially important non-ferrous metals such as copper, lead, zinc, aluminum, nickel and magnesium in this article. Domestic demand and production in recent years and current status on the recycling of the scraps of these non-ferrous metals are introduced briefly here.

Controlled Conversion of Sodium Metal From Nuclear Systems to Sodium Chloride

  • Herrmann, Steven;Zhao, Haiyan;Shi, Meng;Patterson, Michael
    • Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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    • v.19 no.2
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    • pp.233-241
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    • 2021
  • A series of three bench-scale experiments was performed to investigate the conversion of sodium metal to sodium chloride via reactions with non-metal and metal chlorides. Specifically, batches of molten sodium metal were separately contacted with ammonium chloride and ferrous chloride to form sodium chloride in both cases along with iron in the latter case. Additional ferrous chloride was added to two of the three batches to form low melting point consolidated mixtures of sodium chloride and ferrous chloride, whereas consolidation of a sodium-chloride product was performed in a separate batch. Samples of the products were characterized via X-ray diffraction to identify attendant compounds. The reaction of sodium metal with metered ammonium chloride particulate feeds proceeded without reaction excursions and produced pure colorless sodium chloride. The reaction of sodium metal with ferrous chloride yielded occasional reaction excursions as evidenced by temperature spikes and fuming ferrous chloride, producing a dark salt-metal mixture. This investigation into a method for controlled conversion of sodium metal to sodium chloride is particularly applicable to sodium containing elevated levels of radioactivity-including bond sodium from nuclear fuels-in remote-handled inert-atmosphere environments.