Category Archives: Technical Data

Fig. 3 – View of copper rotors for the considered motors

THREE-PHASE INDUCTION MOTOR EFFICIENCY IMPROVEMENTS WITH DIE-CAST COPPER ROTOR CAGE AND PREMIUM STEEL

F. Parasiliti (1) – M. Villani (1) – C. Paris (2) – O. Walti (2) – G. Songini (3)- A. Novello (4) – T. Rossi (4) Abstract The paper presents the results of a research project whose aim was the efficiency improvement in industrial three-phase induction motors, making use die cast copper rotor cage and

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Fig.3 Cross-section of rotor for three-phase motor showing copper filling the conductor bar slots

Die-cast copper rotors for improved motor performance

모터 성능 향상을 위한 다이캐스트 구리 로터 Authors J.G. CowieCopper Development Association Inc., New York, NY, USAD.T. BrenderCopper Development Association Inc., New York, NY, USA Abstract Aluminum has been the common conductor material for the squirrel cage of the induction motor largely because of ease of manufacturing by pressure die casting. Short die life in

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Fig2 Rotor core assembly(A) and squirrel cage(B)

Process Control and Thixoforming of Cu Rotor for High Efficiency Motors

고효율 전동기용 Cu Rotor의 반응고 성형과 공정변수 제어 Jung, W. S. ; Lee, S. Y. ; Shin, P. W. 정우성 (창원대학교 재료공학과) ; 이상용 (안동대학교 신소재공학부) ; 신평우 (창원대학교 재료공학과) Abstract Rotor in small-medium induction motor has been usually manufactured by aluminum diecasting. In order to improve the efficiency of induction motors, newly developed Cu-Ca alloys have been investigated. The

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Fig. 1. Squeeze casting device.

Effect of Applying Pressure of High Pressure Diecasting Process Using Salt core

용탕단조 시 저온염코어 적용 가압력의 영향 Lee, Jun-Ho (R & D Division for Hyundai Motor Co. & Kia Motors Corp.) ; Moon, J.H. (R & D Center, Dong Yang Piston Co., LTD.) ; Lee, Dock-Young (Division of Materials, Korea Institute of Science and Technology) 이준호 (현대자동차 기술연구소) ; 문중화 (동양피스톤(주)) ; 이덕영 (한국과학기술연구원 기능금속재료연구센터) Abstract A new concept of salt core,

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Figure 16. Cross-sectional view of a cast part with a salt core.

Effects of Composition on the Physical Properties of Water-Soluble Salt Cores

수용성 염핵의 물리적 특성에 대한 조성의 영향 Cihan Cantas &  Bedri Baksan  International Journal of Metalcasting volume 15, pages839–851 (2021)Cite this article 175 Accesses 1 Citations Metrics Abstract The demand for producing essential cast parts and the design requirements for superior engineering performance have increased in recent years. Sand cores used in conventional aluminum cast parts are harmful to the environment,

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Fig. 6 Fracture surface micrograph of the WSSC. a Unreinforced. b With 15 mass% bauxite powder and 15 mass% glass fiber powder. c With 15 mass% bauxite powder and 15 mass% sericite powder. d With 30 mass% glass fiber powder

Fabrication and characterization of high-strength water-soluble composite salt core for zinc alloy die castings

Suo Tu,  Fuchu Liu,  Guanjin Li,  Wenming Jiang,  Xinwang Liu &  Zitian Fan  Abstract A water-soluble salt core (WSSC) strengthened by reinforcing particles, including bauxite powder, glass fiber powder, and sericite powder, was fabricated by gravity-casting process. The surface quality, bending strength, water solubility, humidity resistance, and shrinkage rate of WSSC were investigated, and the synergistic

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Fig. 1 – Exploded view of typical induction motor. The die cast aluminum end ring with cast fan blades is visible on the rotor. The mulitple conductor bars connecting the end rings are contained within the iron laminations.

Materials & Modifications to Die Cast the Copper Conductors of the Induction Motor Rotor

John G. CowieCopper Development Associations Inc.New York, NY Dale T. PetersConsultant to CDA Inc.Hilton Head Island, SC Edwin F. Brush, Jr.Consultant to CDA Inc.Weston, MA Stephen P. MidsonFormcast, Inc.Denver, CO Articles on materials appearing in materials issues have generally focused on the common aluminum-, zinc- and magnesium-based die casting alloys. This report differs in that

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FIGURE 1. 2D cross-section of the copper rotor die: 1. Steel laminations, 2. End ring (Cu), 3. Gate area (Cu), 4. Runner (Cu), and 5. Steel arbor [1].

Prediction of Thermal Fatigue in Tooling for Die‐casting Copper via Finite Element Analysis

Amit Sakhuja and Jerald R. Brevick Citation: AIP Conference Proceedings 712, 1881 (2004); doi: 10.1063/1.1766807View online: http://dx.doi.org/10.1063/1.1766807View Table of Contents: http://scitation.aip.org/content/aip/proceeding/aipcp/712?ver=pdfcovPublished by the AIP Publishing Abstract Recent research by the Copper Development Association (CDA) has demonstrated the feasibility of diecasting electric motor rotors using copper [1]. Electric motors using copper rotors are significantly more energyRecent

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Fig. 8 Model of electromagnet sensor arrangement with rotor

Design and Development of Rotor Quality Test System for Die-Cast Copper Rotors

Soby T. Varghese; K. R. Rajagopal; Bhim Singh Abstract t is well known in the market that the copper rotor motor can give good efficiency at par with the new era motors, and can handle higher temperatures to qualify for electric vehicle application. Being a heavy metal, die-cast copper rotor manufacturing needs absolute care for faithful rotor

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Die-Cast Copper Motor Rotors: Motor Test Results, Copper Compared to Aluminum

Die-Cast Copper Motor Rotors: Motor Test Results, Copper Compared to Aluminum

다이캐스트 구리 모터 로터: 구리와 알루미늄 모터 테스트 비교 결과 Edwin F. BrushJr.John G. CowieDale T. PetersDarryl J. Van Son Abstract Motor manufacturers have long realized that because the electrical conductivity of copper is nearly 60% higher than that of aluminum, substituting copper for aluminum in the squirrel cage of the induction motor would markedly increase the electrical energy efficiency of the machine. Most

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