Guide To TDK Magnets ver.1

Transcription

1 Guide To TDK Magnets Ferrite Magnets FB Series Neodymium Magnets NEOREC Series Magnet Applied Products TDK CORPORATION 1/ 19

2 Responding to the latest needs of magnet-applied products for a near half-century. Magnetic characteristics transition of TDK's magnet Neodymium NEOREC50 NEOREC53 NEOREC55 Maximum energy product NKS Steel Al-Ni-Co-Fe Al-Ni-Co-Fe Al-Ni-Co-Fe SmCo5 Ba-ferrite Ba-ferrite Sm2Co17 Sr-ferrite Sr-ferrite FB5 FB6 FB3N Nd-Fe-B-Plastic La-Co FB9 FB12 La-Co FB5D FB4D FB13B/FB14H MK Steel KS Steel Co-ferrite Ba-ferrite Year TDK's development steps of magnet products from the ferrite magnet FB1A material in 1959 to the cutting-edge neodymium magnet NEOREC55 Series as well as the world's first La-Co high-performance ferrite magnet FB9, FB12 Series the path of a near half-century represents the evolvement and diversification histories of the magnet-applied products. TDK's Magnets Sintered Magnets Ferrite Magnets FB Series Rare Earth Magnets Neodymium Magnets NEOREC Series Sm-Co Magnets Bonded Magnets Neodymium Plastic Magnets Ferrite-Rubber Magnets 2/ 19

3 Responding to the latest needs of magnet-applied products for a near half-century. Changes in material development and market trends Neodymium Magnets : NEOREC Series La,Co Free Ferrite Magnets : FB9BF Dy Free Neodymium Magnets : NEOREC47HF 1990 CM8B FB9NF,9BF,9HF NEOREC50BF,45BF 47SH,45SX,42TH 40UX 2012 NEOREC47HF 2010 FB13B,14H NEOREC53B,46HG 40TH,35NX 2009 NEOREC43SX 2008 FB12B,12H NEOREC50H,45SH 2006 NEOREC40UH,38UX 2004 FB5DH BQL15N, BQC14N 2003 NEOREC46HF,35UX, 38UH,30EV NEOREC52A,50B,47H BQL FB5D NEOREC42SH NEOREC50F CM11UH,8BL,8BLH 2000 FB9N CM11SH 1999 FB9B, 9H 1997 NEOREC45F,40F,30UX, 27UX CM11N 1996 FB5R NEOREC47B,42B, 44H, 40H NEOREC FB4D REC32AH,26AH NEOREC35UH,31UH CM11B 1993 FB6E NEOREC45,40,38SH, 34SH,41H,37H 1991 FB3G NEOREC41,36,38H,34H, 35SH,31SH,30UH,27UH Increasing the demand of Dy free neodymium magnet and La, Co free ferrite magnet to avoid resources risks of heavy rare earth and rare metals. The performance improvement and reinforcement of HEV and its market expansion as well as the accelerated development and propagation of power-saving/highefficient home electronic appliances which seek reduction of CO2 emission have rapidly expanded the demand for smaller and higher power magnets. The propagation of HEV and advancement in the powersaving (inversion) features of home electronic alliance has expanded the demand for magnet. Demand for magnets for HDD built in home Information appliances & AV equipments increases. Demand for magnets for EV and HEV hits full scale. Demand for magnets for optical communications (optical isolators) expands Digital cameras experience sharp rise in sales. Demand for magnets for small, energy-efficient motors increases. La-Co type next-generation ferrite magnets launched. In mobile phone market, demand of magnets for small vibrating coreless motors and small isolators rises sharply. HEV move to mass production. Demand rises for magnets for vehicle ABS motors and sensors. Market for home appliance shifts from electromagnet type motors to permanent magnet type energy-efficient motors. HDD downsizing and rise in capacity accelerates. Demand for magnets for small VCM and small flat motors increases. Demand for magnets for very small pager-vibration motors increases. Demand for magnets for inverters and fuzzy control motors increases FB6N,6B,6H REC26E,22E NEOREC38,33,30SH, 27SH,35H,32H BQE FB4M 1986 FB3N FB4G,4K BQC NEOREC35,30H 1983 FB5B,5H,5N,5E REC32A,26A 1982 BQK12 Ferrite Magnets : FB Series 1980 FB3K,4N 1979 REC26, BQA FB4H,3X,4X 1976 REC30,24 (Sm2-Co17 Type) 1974 REC18,20 (Sm-Co5 Type) 1970 FB2B,3B,4B 1964 FB3A,4A 1960 FB2A 1959 FB1A Market demands for energy and resource savings rise. Speakers and motors for automotive electrical equipment become smaller and more functional. Demand for magnets for motors for NC working machinery and robots rises sharply. Demand for polar anisotropic magnets for stepping motors increases. Micro-motors become smaller and more functional rapidly. Application of highly functional magnets in vehicle motors increases. Introduction of neodymium magnets and highly functional ferrite magnets accelerates downsizing and advances in functions of applied products. Demand for magnets for motors for automotive electrical equipment and microwave ovens(magnetrons) increases Adoption of ferrite magnets for electrical generators in motorcycles advance. Sm-Co magnets are made more functional and cost is effective. Demand for speaker magnets increases and the magnets become more functional. Demand for cheaper rare earth magnets increases. Sm-Co magnets launched Strontium ferrite magnets launched. Applications expand rapidly. Ferrite magnets for small motors launched. Ferrite magnets for speakers launched Shift from alnico to ferrite begins in earnest. 3/ 19

4 Efforts to achieve products with world-leading quality and price performance. 1m Responding quickly and appropriately to cutting-edge needs for magnetic materials, striving to make more compact products using magnets boasting better performance and lower cost, and contributing to the development of the market these are our basic business philosophies and objectives. To achieve these objectives, we have close alliances with our Advanced Techmology Development Center and Production Engineering Group, It is through these alliances we aim to achieve innovative analysis of physical properties and control methods free of restrictions of conventional theories, for ferrite magnet and neodymium magnet. We have also focused on improving and upgrading our production and supply systems, by streamlining our production lines, consolidating our global networks for production and marketing, and optimizing our production bases and systems for raw materials procurement. Composition controlling technologies High dispersion technologies Powder controlling technologies Structural and compositional analyses technologies Mold design technologies Highly accurate molding technologies Highly accurate high pressure molding technologies Crystal particles orientation technologies Single-domain grain image of the world's first La-Co type ferrite magnet Microstructure controlling (Calcination in atmosphere, heat treatment) technologies Sintering technologies in ultra vacuum and high purity atmosphere Precision machining technologies Surface treatment technologies 4/ 19 Precision cleaning technologies Production process design and facilities production technologies Quality management and magnetic field analysis technologies Magnetization technologies Applied magnetic technologies Element technologies of the Ferrite & Magnet Products Business Group

5 Efforts to achieve products with world-leading quality and price performance. SEM image of the La-Co FB9 material (left) and La, Co free FB9BF material (right) SEM image of Dy including NEOREC47H(left) and Dy free NEOREC47HF(right) To realize new magnet materials with high magnetic properties by replacing some of the basic composition of the magnet normaly has been brought without Dy (Dysprosium) and La (Lanthanum), Co (Cobolt). It is essential activities for eliminate raw material regional risk and price risk supplying the cost effective magnet sably and parmanently. TDK has developed La,Co free ferrite magnet with high magnetic characteristics which is equivalent them of FB9 material including La and Co, and has established production and supply systems of Dy free neodymium magnet with high Br close to top Br value of NEOREC55 Series. Dy on grain boundary layer diffusion by HAL method And TDK is applying "HAL", High Anisotropic field Layer, which is a kind of Dy grain boundary diffusion method, to the part of magnet with easy demagnetization area for enhance coercive force. Example of enhanced coercivity distribution model HRE application area Added HCJ High HRE Low HRE Heavy Rare Earth Available 1.5mm thick skew shapes Improving magnetic property by shape optimization The thin wall molding process enables Br improvement and optimized shape, beyond conventional wet molding technique in ferrite magnet, high power FB12, leads the world in the design for the development of nextgeneration motor to be compact and provide benefits. 5/ 19

6 TDK Worldwide Supporting Networks TDK set up its global network in collaboration with the Manufacturing Department and the Marketing Department. We always pursue the best price performance through a highly efficient relational mass production system. We also actively promote the marketing of technology in principal client countries. Once we determine the latest technology trend in the applied product market, we predict forefront magnet needs in the future, and reflect these in the activities of the R&D Department as quickly as possible. The core of the global network is the Shizuoka Plant, a pioneer of ferrite magnet production technology, and the Narita Plant, a technology innovation center of neodymium magnets and magnet applied products. Both plants employ creative and advanced technology for developing a highly efficient mass production line. They combine Materials & Process Development Center to establish mass production engineering methods for the latest materials, and also assume the role of a supplier to network plants all over the world. Just like the "S"outh and "N"orth poles of a magnet, the "S" hizuoka Plant and "N"arita Plant are the main plants of TDK's Magnets to meet the desires of the magnet market into the next generation. TDK Corporation Shizuoka Plant Ferrite Magnets (Wet) Shizuoka-ken Narita District Shizuoka District Chiba-ken TDK Corporation Narita Plant Neodymium Magnets Magnet Applied Products 6/ 19

7 TDK Worldwide Supporting Networks TDK Ferrites Corporation Oklahoma, U.S.A. Our plants operation year P.R.China (Huanan) Plant TDK Dongguan Technology Co., Ltd. P.R.China (Huanan) Plant TDK Hong Kong Co., Ltd. P.R.China (Dongguan) Plant SAE Magnetics(H.K.) Ltd. Ferrite Magnets (Wet) SAE Magnetics(H.K.) Ltd. Dongguan, P.R.China Assembling VCM Toso TDK Plant (Chiba,Japan) Toso TDK Ferrites Corporation Thailand (Rojana,Wangnoi) Plant TDK (Thailand) Co. Ltd. P.R.China (Xiaobian) Plant TDK Hong Kong Co., Ltd. Germany (Herne) Plant BT Magnet-Technologie Gmb U.S.A. (Oklahoma) Plant TDK Ferrites Corporation Sagara Plant (Shizuoka,Japan) TDK Corporation Shizunami Plant (Shizuoka,Japan) TDK Corporation Narita Plant (Chiba,Japan) TDK Corporation Taiwan (Yangmei) Plant TDK Taiwan Corporation TDK Hong Kong Co., Ltd. Dongguan, P.R.China Ferrite Magnets (Wet/Dry) Neodymium Magnets Magnet Applied Products Mexico (Cd. Juarez) Plant TDK Texas Corporation Sagara TDK Plant (Shizuoka,Japan) Sagara TDK Corporation Shizuoka Plant (Shizuoka,Japan) TDK Corporation Yawata Plant (Chiba,Japan) TDK Corporation Ichikawa Plant (Chiba,Japan) TDK Corporation TDK (Thailand) Co., Ltd. Rojana Plant Rojana, Thailand Neodymium Magnets Wangnoi Plant Wangnoi, Thailand Assembling VCM TDK Dongguan Technology Co., Ltd. Dongguan, P.R.China Ferrite Magnets (Wet) Magnet Applied Products 7/ 19

8 Features of TDK's magnets Ferrite Magnets FB Series A oxide magnet made by sintering, using advanced fine powder control technologies based on a powder metallurgy method. Not susceptible to weakened magnetic fields, this is our core magnet product with outstanding properties for practical applications that surpass those of conventional metal magnets. Another strong feature is that it can be produced in volume at costs significantly below neodymium magnets. FB13B, FB14H : High-performance thin shape-isotropy materials (Available thickness : 1.0 to 2.0 mm) FB9NF, FB9BF, FB9HF : La, Co free latest high-power materials Magnetic characteristics distribution charts of FB Series 5.0 (kg) 500 (mt) Material group FB13B FB14H FB12 Residual magnetic flux density FB3N FB5D FB9N FB9NF FB6N FB5DH FB6B FB12B FB9B FB9BF FB6H FB12H FB9H FB9HF FB6E FB9 FB6 Higher power thin-shaped molding materials High-power La-Co-free materials FB3G La-Co-replaced materials La-Co-free materials (ka/m) (koe) Intrinsic coercive force Thin-shaped molding process Wet molding process Dry molding process Development trends in material group of the FB Series High-performance ferrite magnet for outer rotor Residual magnetic flux density 4.8 (kg) (mt) FB3N FB6N FB6B FB6H 239 Dry FB3G FB6E FB9B FB9H FB9N FB5D Dry FB5DH 318 FB12B FB12H High Hcj FB13B 380 FB14H 430 FB9NF 280 FB9BF FB9HF High Br H CJ Year / 19

9 Features of TDK's magnets Neodymium Magnets NEOREC Series This neodymium magnet achieved the world's highest levels of residual magnetic flux density Br, intrinsic coercive force HCJ, and (BH)max. A wide variety of magnetic characteristics provides a choice of most suitable type, enabling drastic downsizing, slimming, and increased power of magnet applied devices. NEOREC50BF/47HF/45MHF/45BF : Dy free material Magnetic characteristics distribution charts of NEOREC Series 15 (kg) 1.5 ( T ) Residual magnetic flux density B 45BF Axial 42B Axial 50BF 46HF 44H 40H Axial 50H 47HF 45MHF 46HG 42SH HAL 45SH 51DSX 43SX 40UH 38UH (ka/m) (koe) 40TH Intrinsic coercive force HAL 35UX 44DUX 38UX 35NX 30EV High performance neodymium magnet for IPM motor 62 Series (HAL) 55 Series 53 Series 50F Series Dy Free Transverse magnetic field molding process Transverse magnetic field molding process Transverse magnetic field molding process Transverse magnetic field molding process Axial magnetic field molding process Transverse magnetic field molding process Axial magnetic field molding process HAL Method for increasing coercive force, by diffusing the heavy rare-earth element from the surface of the magnets to inside. Substantially 45 Series 50F Series reduce the oxidation of alloy powder (impurities generated) by precision atmosphere control Dy content 53 Series Low Oxygen Process Impurity Oxide Boundary Boundary Reduce 55 Series HAL Nd2Fe14B Nd2Fe14B Dy Free F Series 53 Series 9/ 19

10 The century of clean energy We are moving up to an even higher technological level. An image which analyzed structure of crystals of ferrite magnets The dawn of a new century has been accompanied by numerous initiatives around the globe, involving the application of clean energy technologies. Magnetic materials are poised to play a key role in both energy conservation and the preservation of resources and the environment. To expand the potential of applied technologies and to introduce products thatuse the new technologies, the market is keenly awaiting methods for controlling physical properties and developing highly efficient production systems. Analyzed magnetic field image of magnetic circuit X-ray analysis pattern TDK, founded as the world's first industrial supplier of original material ferrite, considers itself to be an "e-material solution provider" in this new century of clean energy. Supported by engineering efforts that have consistently tested new limits, we are strengthening our engineering ties and bolstering the technological capacities of our Company. The Ferrite & Magnet Products Business Group has been providing products to meet cutting-edge needs, including La, Co free ferrite magnet FB9RF and Dy free neodymium magnet NEOREC47HF, avoiding uneven distribution and quantitative risk of heavy rare earth and rare metals. But we have no intention of stopping with these achievements. In the new century, we will continue our efforts to develop and deliver new magnetic materials that meet the needs of our clients, in every area of the market for applied magnet products. 10/ 19

11 Typical material characteristics Residual magnetic flux density Br (mt) FB FB3N FB6N FB5D FB9N FB9NF FB5DH FB13B FB14H FB12B FB12H FB9B FB9BF FB9H FB6B FB9HF FB6H FB6E Residual magnetic flux density Br (mt) BF 47B 50H 45MHF 45BF Axial 46HF 44H 42B 46HG 45SH Axial 40H Axial 47HF 42SH 51DSX NEOREC 44DUX 43SX 40TH 40UH 38UH 38UX 35UX 35NX 360 FB3G La, Co type La, Co free Dy type Dy free 30EV Intrinsic coercive force HCJ (ka/m) Intrinsic coercive force HCJ (ka/m) MAGNETIC CHARACTERISTICS Magnet forms Ferrite Neodymium Type La,Co La,Co High Br Dy High HCJ Typical material FB6B FB9BF FB9B FB12B NEOREC50H NEOREC47H NEOREC47HF NEOREC30EV Residual magnetic flux density (mt) Coercive force (ka/m) Intrinsic coercive force (ka/m) Maximum energy product (kj/m 3 ) Temperature coefficient (%/K) Br HCJ Reference data (traditional material) Magnet forms Curie temperature (K) Recoil relative permeability Strength of magnetization (ka/m) Ferrite to Neodymium PHYSICAL AND MECHANICAL CHARACTERISTICS Magnet forms Density (Mg/m 3 ) Thermal expansion coefficient (ppm/k) Flexural strength (MPa) Compressive strength (MPa) Tensile strength (MPa) Young's modulus (GPa) Vickers hardness Ferrite 4.9 to Neodymium 7.5 to : Measurement value in the direction of easy magnetization : Measurement value in the direction perpendicular to the direction of easy magnetization 11/ 19

12 Concept-In - magnet applied products Major initiatives HDD (Magnetic circuits for VCM) Magnet roll for LBP Smartphone built-in camera Magnetic circuits for lens actuator Stacked magnets for preventing eddy current loss Magnet for TMR angle sensor Magnetic circuits for magnetic sensor (magnet unit) Selection and configuration of optimized shape design and magnet grade by computer simulation, and suggestions requested by various simulation utilizing magnetic field analysis know-how and advanced system features a magnetic circuit. Corresponds to the request of integrated structural part injection molding magnets in magnetic circuit. Large wind turbine generator (rotor magnetic circuit assembly) Plasma generating equipment (magnet unit assembly) For motors (magnet assembly for various uses) 12/ 19

13 Typical application and recommended materials Recommended materials are indicated in color FB Series /NEOREC Series Specifications design support and production of the magnet application product Automotive Sector Motors 9BF,9N,9B,12B Fuel Pump Motor 9BF,9B,12B Power Window Lift Motor 9BF,9HF,9H,9B,12B,12H Anti-lock Brake System Pump Motor 9BF,9B,12B Blower Motor / Wiper Motor 9BF,9N,9B,12B/46HF,45SH Power Steering Motor 9BF,9HF,9B,9H,12B,12H Power Brake Motor 9BF,9HF,9B,9H,12B,12H/45SH Motor For Active Suspension 9BF,9HF,9B,9H,12B Motor For Electronic Throttle Control 9BF,9HF,9B,9H,12B,12H Motor For Continuously Variable Transmission (CVT ) 9BF,9HF,9B,9H,12B,12H/40UH Starter Motor 5D,5DH Door Lock Motor / Power Mirror Motor 40UH Generator Operation Motor 9BF Seat Motor Operation Motor / Generator for Hybrid Electric Vehicle, Electric Vehicle 40UH,40TH,35NX,45SX,42TH Sensors 5D,5DH/50H,45SH Anti-lock Brake System Sensor 5D,5DH Fuel Level Sensor / Oil Level Sensor 5D,5DH/45SH Distributor Sensor 45SH CAM Sensor Anti-Trap Power Window Sensor Others 9BF,9N,9B,12B,12H/38UH Electric Generator 45SH Suspension Control 9BF,9B,12B/40UH Alternator 40UH Ignition Coil (For Bias) 45BF,42B Loudspeakers 5D,5DH/37H For various adsorptions High-performance magnets of the top-level world class for automotive Anti-Trap Power Window Sensor Power Mirror Motor Electronic Power Steering Motor Speed Meter Electronic Throttle Control Oil Level Sensor Blower Motor Alternator Automotive Power Window Lift Motor Door Lock Motor Louver Motor for Air Conditioners Loudspeakers Fuel Pump Motor Distributor Sensor Operation Motor for HEV/ EV Generator Operation Motor Ignition Coil (For Bias) Wiper Motor Power Brake Motor Anti-lock Brake System Pump Motor Motor For Continuously Variable Transmission CAM Sensor Suspension Controlr Motor For Active Suspension Anti-lock Brake System Sensor Fuel Level Sensor 13/ 19

14 Typical application and recommended materials Recommended materials are indicated in color FB Series /NEOREC Series Specifications design support and production of the magnet application product Office Automation Devices Sector Personal Computer 47B,46HF,47HF HDD : VCM 44H HDD : Latch 50B,47H DVD Recorder : Optical Pickup DVD, CD-ROM : Optical Pickup Motor 5D,5DH DVD, CD-ROM : Loading Motor 5D,5DH 5D,5DH/37H,40H DVD, CD-ROM : Clamper 5D,5DH Cooling Fan Motor Laser Printer 40H Polygon Mirror Motor 5D,5DH Motor for Paper Delivery Mechanism 5D,5DH Cooling Fan Motor Magnet Roll Optical Pickup Ink-Jet Printer 5D,5DH Paper Delivery Motor 5D,5DH Head Driving Motor Photocopier 5D,5DH Photosensitive Drum Motor 5D,5DH Motor for Paper Delivery Mechanism 5D,5DH Cooling Fan Motor 5D,5DH Motor for Paper Delivery Mechanism Scanner 5D,5DH Carriage Motor DVD, CD-R Drive Optical Pickup Motor Loading Motor Audiovisual devices Sector Camcorder 40H Capstan Motor / Head Motor 40H Reel Motor 5D,5DH Loading Motor 44H Spindle Motor for Tape Rewinding Zoom Motor/Focus Motor 5D,5DH/44H 5D,5DH Loading Motor 5D,5DH Optical Pickup Motor 5D,5DH/40H Clampers Camera (Still/Digital) 5D,5DH/44H Focus Motor 5D,5DH/41H Auto Wind Motor 5D,5DH/41H Auto Rewind Motor Others 37H,40H Loudspeakers 37H,40H Headphones Clamper VCM HDD Latch Ink-Jet Printer Paper Delivery Motor Printer Clutch Cleaner Motor Head Driving Motor 14/ 19

15 Typical application and recommended materials Recommended materials are indicated in color FB Series /NEOREC Series Specifications design support and production of the magnet application product Telecommunications devices sector Telephone Unit 37H,41H Receiver (Speakers) Smart Phone 9BF,9B,9H,12B,12H Isolator 37H,41H Receiver (Speakers) 38UH,41H Coreless Vibration Motor 47HF Opening-and-closing Sensor Receiver Lens Actuator Isolator Smart Phone Vibration Motor Fan Motor Louver Motor Home Appliance Sector Air Conditioner 9BF,9HF,9N,9B,9H,12B,12H/42SH,43SX Outdoor Unit : Compressor Motor 9BF,9B,12B Outdoor Unit : Fan Motor 5D Outdoor Unit : Coolant Flow Control Valve 9BF,9B,5D,12B Indoor Unit : Fan Motor 5D,5DH Indoor Unit : Louver Motor Washing Machine 9BF,9N,9B,12B,12H/42SH,47B,44H Driving (DD Axis) Motor / Water Pump 5DH Drum Lid Sensor Refrigerator 9BF,9N,9B,9H,12B,12H/42SH,43SX Compressor Motor 5D,5DH Fan Motor Others 5D,5DH Air Purifier : Fan Motor 5D,5DH Hair Dryer : Fan Motor 5D,5DH Shaver : Driving Motor 5D,5DH Electric Toothbrush : Driving Motor 9BF,9N,9B,12B,12H Power Tools : Driving Motor Air Conditioner Driving (DD Axis) Motor Fan Motor Coolant Flow Control Valve Washing Machine Compressor Motor Drum Lid Sensor Water Pump 15/ 19

16 Typical application and recommended materials Factory Automation / Industrial Equipment Sector Industrial Robot Main Driving Motor / Shaft,Joint Motor 12B,12H/42SH,38UH,44H,43SX Machine Tools 9BF,9N,9B,12B,12H/42SH Table Drive Motor 9BF,9HF,9B,9H,12B,12H/42SH Belt Drive Motor 50B,47H Semiconductor Transfer Equipment (Linear Motor) 37H Sensors in Pneumatic Devices 9BF,9BH,9B,9H/42SH Magnet Chuck 42SH Magnet Coupling 42SH Direct Drive Motor Elevator 9BF,9HF,9B,9H,12B,12H/42SH Servo Motor for Motor Elevation 12B,12H Door Motor Train Vehicle 40TH Main Motor Electrical Generator 9H,12H/50F,46HF,47HF,38UH Roter Assembly Medical Equipment Sector 44H MRI : Magnetic Field Generation 9BF,9B,9H/42SH Coupling for Blood Pumps 5D,5DH Analytical Instruments : Pump Motors 9BF,9HF,9N,9B,9H,12B,12H/42SH Electric Bed Other Applications 5D,5DH Toys : Driving Motor 9BF,9HF,9N,9B,9H,12B,12H Motor for Radio Controlled Models 9BF,9HF,9B,9H Magnetic Stand (For Adsorption) 5D,5DH Magnetic Latch (For Adsorption) 5D,5DH Magnetic Therapy Instruments Plasma Generator Recommended materials are indicated in color FB Series /NEOREC Series Specifications design support and production of the magnet application product 16/ 19

17 Manufacturing process of magnet products and element technologies Fe 2O 3 SrCO 3 1 Automated weighing 2 Calcination Manufacturing Process Ferrite Magnets Rough crushing 3 Fine milling Dehydration Drying Kneading 4 Wet Process Dispersion Molding in a magnetic field a b Mixing H 2O 4 Dry Process Weighing and Mixing Mixing iron oxide and strontium carbonate as a basic composition (in FB9 and FB12, add lanthanum and cobalt to basic composition) Calcination By heating mixed powder in air to get particles of strontium ferrite compound Rough Crushing and Fine Milling Crushing calcinated powder in air and milling in water to get fine particles of approximately 1m Fine particles are sent to the dry or wet process. Wet process : Dehydration and Kneading Dehydration and kneading to keep specified decentration of slurry (suspension of water and crushed fine particles) a b Wet Process Dry Process Drying 5 Sintering 6 Grinding 7 Magnetization 8 Inspection Shipment Dry process : Drying and Dispersion Drying slurry in a flash bulb dryer and pulverizing Molding in a magnetic field Molding the slurry(wet)/powder(dry) in a magnetic field to get a specific shape compaction (Wet Process Drying) Machining (Cutting/Grinding or both) Magnetizing Depending on the specification Inspection and Shipment Drying and Sintering Firing the compaction in air by continuous furnace to get a dense sintered part 17/ 19

18 Manufacturing process of magnet products and element technologies Nd/ Fe/B 1 Automated weighing Dy Co Manufacturing Process Neodymium Magnets Rough crushing 1mm100m 3 Fine milling (Jet milling) 101m Molding in a axial magnetic field 4 Melting 2 Casting Nitrogen Molding in a transverse magnetic field Weighing Weighing neodymium(dysprosium), iron(cobalt), and boron as a basic composition with additives Melting and Casting Melting and Casting in vacuum by high-frequency melting furnace to get NdFeB/(Nd,Dy)FeB alloy Rough Crushing and Fine Milling Pulperizing alloy by hydrogen absorption and desorption, then jet milling in nitrogen to get micromerter order fine particles Molding in a magnetic field Molding the powder in a magnetic field to get a specific shape compaction Sintering 5 Heat treatment 6 Surface treatment Products for VCM Precision cleaning 7 Magnetization 8 Machining Inspection Plating, Resin coating, or Passivation is done by requirement Shipment Vacuum Sintering and Heat treatment Firing the compaction by batch type continuous vacuum furnace to get a dense sintered part and then heat treatment for stabilizing Hcj Machining (Cutting/Grinding or both) Magnetizing Depending on the specification Inspection and Shipment Surface treatment Precision cleaning 18/ 19

19 JAPAN Magnet Products Business Group TDK Corporation 3-9-1, Shibaura, Minato-ku, Tokyo , Japan Tel : Fax : Nagoya District Office 2-13, Sakaecyou, Naka-ku, Nagoya-shi , Japan Tel : Fax : Osaka District Office 1-2-3, Minatomachi, Naniwa-ku,Osaka-shi , Japan Tel : Fax : ASIA / PACIFIC TDK(Shanghai) International Trading Co., Ltd. Room 2201, Shanghai International Trade Center 2201, Yan An West Road, Shanghai , China Tel : Fax : TDK China Co., Ltd. Guangzhou Branch Office Room , Goldlion Digital Network Center, 138 Tiyu Road East, Tianhe, Guangzhou , China Tel : Fax : TDK Singapore (Pte) Ltd. 166 Kallang Way, Singapore Tel : Fax : TDK(Thailand) Co., Ltd. Sales Office 209/1 K Tower, Tower B, 11th Floor, Unit 3&4 Sukumvit 21 Road(Asoke), Klongtoey-Nua, Wattana, Bangkok 10110, Thailand Tel : Fax : NORTH AMERICA TDK Corporation of America 475 Half Day Road Suite 300, Lincolnshire, IL U.S.A. Tel : Fax : EUROPE TDK Electronics Europe GmbH Wanheimer Straße 57, D Düsseldorf, Germany Tel : Fax : / 19