- Email: [email protected]
Clarifications
Atomizer
has high yield of fines
Crucible yields with more t h a n 85% fine powder are possible with its new atomizer, says HJE of Watervliet, New York. The A m e r i c a n c o m p a n y reports t h a t the close-coupled high pressure gas atomization e q u i p m e n t has d e m o n s t r a t e d excellent performance in prod u c i n g high yields o f fine particle size spherical powders. The mean particle size of t h e at.omized p o w d e r is typically 10-30 Bm. The melt batch size can be varied from around 50 g up to several kilograms. The system may be configured to operate with a dedicated heating s o u r c e or w i t h a s e p a r a t e melting facility. The unit has a footprint of 1.2 x 1.2 m and is around 1.8 m high. The heart of the system is the HJE close-coupled atomization nozzle. The superalloy construction of the fixed geometry design simplifies usage and allows operation over a wide range of inert gas pres-
Norddeutsche invests in
premixes German copper powder prod u c e r N o r d d e u t s c h e Affinerie is extending its facilities for p r e m i x e d powders. The production of copper and copper alloy powders for use in 90/10 b r o n z e p r e m i x e s will be i n c r e a s e d by m o r e t h a n
Clarifications In May Metal Powder Report carried an article about the 2000 t o n n e s / y e a r steel making facility established in India by Powmex Steels of Orissa. Powmex has licensed gas atomization technology from Osprey Metals of Neath, UI~ The January 1992 issue of Metal Powder Report featured the work carried out by Miba of Austria and Suko of Germany on powder metallurgy (PM) materials for camshaft lobes. Some of Miba's materials are used in PM cam lobes today. The firm also found applications for the materials in other engine parts. Suko owns advanced as-
sures. This enables the system ~ ['~ to be t u n e d to produce the desired mean powder particle size, says HJE. The nozzle uses a replaceable insert to guide the melt. Additional optimization of the mean particle size and distribution can be achieved by varying the geometry of the insert. Atomization nozzle operating p a r a m e t e r s include a plenum pressure of 689-3445 kPa; m a x i m u m operating temperature 300°C; m a x i m u m melt t e m p e r a t u r e 1600°C; and a variable melt atomization rate of 50-500 cm3/min. A centralized programmable logic c o n t r o l l e r (PLC) based supervisory controller m a n a g e s t h e p r o c e s s functions ensuring repeatability from b a t c h - t o - b a t c h . Safety equipment includes system interlocks and pressure relief valves.
HJE Co, 877, 25th Street, Watervliet, New York, USA; tel: + 1-518-276-3065.
2000 tonnes/year. The building for the new p l a n t is c o m p l e t e d , says Norddeutsche, and equipm e n t is currently being installed. Production will begin in late 1992.
Norddeutsche Affinerie Aktiengesellschafl, PO Box 30 39 26, D-2000 Hamburg 36, Germany; tel: +49(0)40-78-83-0; fax: +49(0) -40-78-83-22-55.
sembling systems for m o u n t e d camshafts. In its joint developm e n t of the lobes with Miba, the company's inhouse facilities performed h u n d r e d s of t h o u s a n d s of hours of tests.
_J
!
The close-coupled high pressure gas atomizer from HJE.
Automated production lines m a k e parts for Zeta engine A UK powder metallury (PM) plant's a u t o m a t e d production lines are making c o m p o n e n t s for Ford engines. GKN of Lichfield, w h i c h holds the Ford Q1 award, is making the sintered metal camshaft and crankshaft pulleys t h a t will go i n t o t h e carmaker's Zeta engine. Production of the engine, which will go into the Escort range of cars and a new saloon t h a t will be launched in 1993, should reach 850 000 units by the end of 1993. The order is the biggest ever received from GKN's powder metallurgy division GKN's. a u t o m a t e d lines, which cost the company ~2 million will supply Ford's en-
Pioneer A w a r d for Kempton Roll The Metal Powder Industries Federation (MPIF) h o n o u r e d its former executive director Kempton H. Roll with the Powder Metallurgy Pioneer Award during the 1992 Powder Metallurgy World Congress in San Francisco. The award recognizes individuals who have m a d e contributions to powder metallurgy (PM) and through t h e i r efforts have fostered to growth and success of single of multiple fields of PM. Roll b e c a m e executive s e c r e t a r y of t h e Metal Powder Association in 1956, and was instrumental in forming the MPIF. He served as its executive director from 1957-1988. In 1959, Roll founded the American Powder Metallurgy Institute as the professional society for the PM industry.
gine plants in Bridgend, UK, and Cologne, Germany.
GKN Bound Brook, trent Valley Road, Liehfield WS13 6HG; tel: + 4 4 - ( 0 ) 5 4 3 414101; fax: + 4 4 - ( 0 ) 5 4 3 258733.
Infiltrant leaves no residue An infiltration efficiency of 99% w i t h o u t residue can be obtained using its LR-99 infiltrant, says Alcan Powders and Pigments. Joe Marino told Metal Powder Report t h a t 99% o f t h e i n f i l t r a n t slug enters the metal compact, c o m p a r e d to 95-97% in conventional products. This will offer a c o s t saving for t h e p a r t producer, he claims. The no residue property, meaning t h a t none of the slug is left on the surface of the p a r t after sintering, has been obtained by modifications to the composition. This p r o d u c t is no more expensive t h a n less efficient infiltrants, says Alcan.
Joe Marino, Alcan, 901 Lehigh Avenue, Union, NJ 07083, USA; tel: + 1-908-8514590; fax: + 1-908-851-4597.
MPR July/August 1992 7
has high yield of fines
Crucible yields with more t h a n 85% fine powder are possible with its new atomizer, says HJE of Watervliet, New York. The A m e r i c a n c o m p a n y reports t h a t the close-coupled high pressure gas atomization e q u i p m e n t has d e m o n s t r a t e d excellent performance in prod u c i n g high yields o f fine particle size spherical powders. The mean particle size of t h e at.omized p o w d e r is typically 10-30 Bm. The melt batch size can be varied from around 50 g up to several kilograms. The system may be configured to operate with a dedicated heating s o u r c e or w i t h a s e p a r a t e melting facility. The unit has a footprint of 1.2 x 1.2 m and is around 1.8 m high. The heart of the system is the HJE close-coupled atomization nozzle. The superalloy construction of the fixed geometry design simplifies usage and allows operation over a wide range of inert gas pres-
Norddeutsche invests in
premixes German copper powder prod u c e r N o r d d e u t s c h e Affinerie is extending its facilities for p r e m i x e d powders. The production of copper and copper alloy powders for use in 90/10 b r o n z e p r e m i x e s will be i n c r e a s e d by m o r e t h a n
Clarifications In May Metal Powder Report carried an article about the 2000 t o n n e s / y e a r steel making facility established in India by Powmex Steels of Orissa. Powmex has licensed gas atomization technology from Osprey Metals of Neath, UI~ The January 1992 issue of Metal Powder Report featured the work carried out by Miba of Austria and Suko of Germany on powder metallurgy (PM) materials for camshaft lobes. Some of Miba's materials are used in PM cam lobes today. The firm also found applications for the materials in other engine parts. Suko owns advanced as-
sures. This enables the system ~ ['~ to be t u n e d to produce the desired mean powder particle size, says HJE. The nozzle uses a replaceable insert to guide the melt. Additional optimization of the mean particle size and distribution can be achieved by varying the geometry of the insert. Atomization nozzle operating p a r a m e t e r s include a plenum pressure of 689-3445 kPa; m a x i m u m operating temperature 300°C; m a x i m u m melt t e m p e r a t u r e 1600°C; and a variable melt atomization rate of 50-500 cm3/min. A centralized programmable logic c o n t r o l l e r (PLC) based supervisory controller m a n a g e s t h e p r o c e s s functions ensuring repeatability from b a t c h - t o - b a t c h . Safety equipment includes system interlocks and pressure relief valves.
HJE Co, 877, 25th Street, Watervliet, New York, USA; tel: + 1-518-276-3065.
2000 tonnes/year. The building for the new p l a n t is c o m p l e t e d , says Norddeutsche, and equipm e n t is currently being installed. Production will begin in late 1992.
Norddeutsche Affinerie Aktiengesellschafl, PO Box 30 39 26, D-2000 Hamburg 36, Germany; tel: +49(0)40-78-83-0; fax: +49(0) -40-78-83-22-55.
sembling systems for m o u n t e d camshafts. In its joint developm e n t of the lobes with Miba, the company's inhouse facilities performed h u n d r e d s of t h o u s a n d s of hours of tests.
_J
!
The close-coupled high pressure gas atomizer from HJE.
Automated production lines m a k e parts for Zeta engine A UK powder metallury (PM) plant's a u t o m a t e d production lines are making c o m p o n e n t s for Ford engines. GKN of Lichfield, w h i c h holds the Ford Q1 award, is making the sintered metal camshaft and crankshaft pulleys t h a t will go i n t o t h e carmaker's Zeta engine. Production of the engine, which will go into the Escort range of cars and a new saloon t h a t will be launched in 1993, should reach 850 000 units by the end of 1993. The order is the biggest ever received from GKN's powder metallurgy division GKN's. a u t o m a t e d lines, which cost the company ~2 million will supply Ford's en-
Pioneer A w a r d for Kempton Roll The Metal Powder Industries Federation (MPIF) h o n o u r e d its former executive director Kempton H. Roll with the Powder Metallurgy Pioneer Award during the 1992 Powder Metallurgy World Congress in San Francisco. The award recognizes individuals who have m a d e contributions to powder metallurgy (PM) and through t h e i r efforts have fostered to growth and success of single of multiple fields of PM. Roll b e c a m e executive s e c r e t a r y of t h e Metal Powder Association in 1956, and was instrumental in forming the MPIF. He served as its executive director from 1957-1988. In 1959, Roll founded the American Powder Metallurgy Institute as the professional society for the PM industry.
gine plants in Bridgend, UK, and Cologne, Germany.
GKN Bound Brook, trent Valley Road, Liehfield WS13 6HG; tel: + 4 4 - ( 0 ) 5 4 3 414101; fax: + 4 4 - ( 0 ) 5 4 3 258733.
Infiltrant leaves no residue An infiltration efficiency of 99% w i t h o u t residue can be obtained using its LR-99 infiltrant, says Alcan Powders and Pigments. Joe Marino told Metal Powder Report t h a t 99% o f t h e i n f i l t r a n t slug enters the metal compact, c o m p a r e d to 95-97% in conventional products. This will offer a c o s t saving for t h e p a r t producer, he claims. The no residue property, meaning t h a t none of the slug is left on the surface of the p a r t after sintering, has been obtained by modifications to the composition. This p r o d u c t is no more expensive t h a n less efficient infiltrants, says Alcan.
Joe Marino, Alcan, 901 Lehigh Avenue, Union, NJ 07083, USA; tel: + 1-908-8514590; fax: + 1-908-851-4597.
MPR July/August 1992 7