ISG rescued as Hoybide re-emerges

ISG rescued as Hoybide re-emerges

~ # u b o furnace I Special rotating tube furnace designed by Carbolite for the continuous heat treatment of exotic metal powders. lum powder produc...

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~ # u b o furnace I

Special rotating tube furnace designed by Carbolite for the continuous heat treatment of exotic metal powders.

lum powder producing plant of the Thai company, TrA (Thai Tantalum Co Ltd). The samples were to be evaluated by Japanese capacitor manufacturers. In Thailand a p l a n t is currently being built at Map Ta Phud, Rayong province, to p r o d u c e t a n t a l u m powder from the raw material. The sodium reducing plant is scheduled for completion by September 1991 w i t h t h e tantalum/potassium fluoridation p l a n t ready in March 1992. Shipments to Japan of CV40 000 to 50 000 tantalum powder should occur in 1992.

the Hoybide operation.

High hardenabiUty prealloyed low-alloy st--c!

A special 1000°C rotating tube furnace has been designed by Carbolite, of Sheffield, UI~ for the continuous heat treatment of exotic metal powders. Throughput is up to 5 kg of powder an hour. The furnace features inert atmosphere, rotating water section, a variable speed volumetric feed unit and sealed collection hopper. Breaker bars are fitted inside the work tube to improve the powder flow. The unit is gas tight and purge pipes are fitted. Heating to a m a x i m u m 1000°C is provided by silicon carbide rods mounted horizontally around the outside of the I00 mm diameter x 450 nun long special alloy work tube. Insulation is low thermal mass ceramic fibre. The furnace is under full microprocessor control from a separate cabinet mounted in the furnace's supporting framework which allows the tube's angle of tilt to be varied.

A new prealloyed steel powder claimed to provide the highest hardenability of any currently available powder has been i n t r o d u c e d by H o e g a n a e s Corp, of Riverton, New Jersey, USA. Carbolite Purnaces Ltd, Ancorsteel 150 HP is a Bamford Mill, Bavffford, Shefwater atomized low-alloy steel field $30 2AU, UK. powder for high performance applications, particularly in the automotive industry, such as synchronizer hubs, synchronizer blocking rings, transmis- High temperature ISG rescued as sion chain sprockets, gerotors, alloy using Osprey Hoybide steering column tilt levers, process re-emerges gear carriers, parking gears, I gear change levers and conI I necting rods. An age-hardening AICuMn-alISG Tooling Technologies, of In addition to its high loy designed for applications Princes Risborough, UK, has hardenability, the 1.5% molybat temperatures up to 200°C been bought by the Howle denum content as the primary has been made by the Osprey Holdings Group, after going alloying agent is said to permit spray deposition process. into receivership in March 'extremely good compressibilThe high temperature pro1991, (Metal Powder Report, ity'. perties of Novodal 202, deveMay 1991). However, the toolSales and marketing vice loped by A l u s u i s s e - L o n z a making operation of ISG loca. president William Michael said Services Ltd, of Switzerland, ted at Abbey Wood, London, the use of molybdenum offered are said to make it superior UK, was not purchased, it is the same high performance of to all conventionally produced reported. existing nickel/molybdenum AA 2XXX alloys. The c o m p a n y has been steel alloys but avoided the The Osprey process allows renamed Hoybide, the name it price instability associated the composition and microused prior to its acquisition by with the nickel market. structure of the material to ISG in 1989, who later pur"This new material offers meet customer requirements; chased Nuloy and merged the many advantages to metal Novodal 202 is especially suittwo companies. powder fabricators by allowable for extrusions and forIn the cutting tool sector, ing them to tailor the perforgings. Howle Holdings already owns mance characteristics of their Beatrice Zettler, AlusuisseRichard Lloyd Ltd and Tung- parts", says Michael. Lonza Services Ltd, Research sten Electric (TECO), a proHoeganaes Corp, Taylors and Development, Bad. Bahnducer of hardmetal products. Lane and River Road, Riverhofssrasse 16, CH-8212 Neu. T E C O managing director ton, NJ 08077, USA; teL. 609hausen am Rheinfall, Chris Fletcher is now heading 829-2220.

Switzerland.

Rmtdall M. German has been a p p o i n t e d to the Brush Chair in Materials at the College of Engineering, Pennsylvania State University, USA• He is currently the Robert Hunt Professor of Materials Engineering at the Rensselaer Polytechnic Institute (RPI), of Troy, N e w York, USA. German, a 1954 graduate of the Penn State College of Engineering, began his career in 1968 as a materials scientist in the powder metallurgy division of Battelle Columbus Laboratories. From 1969-77 he was a member of the technical staff at Sandia National Laboratories. He was director of research and development for Mott Metallurgical Corp, from 1977-78, and for the following two years was director of research for J.M. Ney Co. German joined the RPI faculty in 1980 and was appointed to his current position in 1985. German holds six pat e n t s for materials and ceramic powder processing techniques, and is also technical director of Xform Inc, an RPI incubator company formed to develop one of his patents.

Former site director Peter Warnes has been prorooted to managing director of Makin Metal Powders Ltd, of Darwen, UK He joined the company in 1985 following the amalgamation of the previous powder making operations of Makin and McKechnie. Geoff Mowbray, currently president of the British Powder M e t a l l u r g y Federation, has been prorooted to director of marketing alter 15 years with Makin. Paul Adlm~ moves from the position of controller to become finance director. Lew C a s e has joined the company's sales team from Rigby Metal Components Ltd and will be responsible for the Asiatic area. i

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MPR April 1991 5