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ASL upgrades gas atomizer
took eight minutes for the steel-steel CMF to reach the same temperature.
Flame retardant The researchers also found that the composite metal foam made entirely of stainless steel expands 80% less than bulk stainless steel at
200 8C, and the differential increases at higher temperatures. Moreover, the composite metal foam expands at a fairly constant rate when exposed to high heat – whereas conventional bulk metals and alloys such as stainless steel expand more rapidly as temperature increases.
PRODUCT SHOWCASE
The paper, Experimental and computational studies on the thermal behavior and fire retardant properties of composite metal foams, is published in the International Journal of Thermal Sciences. North Carolina State University; www.ncsu.edu
Attritor suitable for extremely dense material Union Process, a manufacturer of particle size reduction and dispersing equipment, has custom built an SD100 Attritor for processing a very dense material. ‘Our customer’s application required a very robust mill that could accommodate the very dense material they are processing,’ said Chuck Major, sales manager for
the company. ‘Therefore, this dry grinding mill required a larger motor, reducer and shaft than we would normally build for a mill of this size.’ Because material is discharged into two different 55-gallon drums, Union Process was required to build a heavy-duty riser upon which the SD100 sits. The mill
features a dual discharge (front and back) so the material can be discharged into both drums. The dual discharge configuration allows the product to exit more quickly, increasing turnaround time for each batch. Union Process; www.unionprocess.com
ASL has also invested in uprated sieving and classification systems, allows the company to undertake powder separations from over 100 microns down to less than 5 microns. With these upgrades ASL has increased its production capacity for the finest grades more than twofold, the company said. ASL’s quality control (QC) laboratory has also received a significant expansion with a new Malvern Mastersizer, a total oxygen determination instrument, a compaction press and tensometer for green determination of
water atomized powders, and an XRF chemical analyser. The company has also recruited extra laboratory staff. ‘While a massive increase in orders for water atomized powders has kept us very busy, we have not neglected to develop our capability to serve our gas atomized powder clients with new grades for MIM, AM, HIP and thermal spray processes amongst others,’ said Simon Dunkley, ASL’s managing director. Atomising Systems Limited; www.atomising. co.uk
ASL upgrades gas atomizer Atomising Systems Limited (ASL), based in the UK, has undertaken R&D work on its gas atomizer to meet growing demand for ultrafine gas atomized powders. Following the development of an improved tundish system, the 200 kg batch capacity gas atomizer has now been upgraded with a high power gas heater allowing much higher atomising gas temperatures to be achieved. This, coupled with extensive work on ASL’s gas atomising nozzle system, now enables the production of stainless steels with median particle size of less than 20 microns.
221
PRODUCT SHOWCASE
Metal Powder Report Volume 71, Number 3 May/June 2016
Flame retardant The researchers also found that the composite metal foam made entirely of stainless steel expands 80% less than bulk stainless steel at
200 8C, and the differential increases at higher temperatures. Moreover, the composite metal foam expands at a fairly constant rate when exposed to high heat – whereas conventional bulk metals and alloys such as stainless steel expand more rapidly as temperature increases.
PRODUCT SHOWCASE
The paper, Experimental and computational studies on the thermal behavior and fire retardant properties of composite metal foams, is published in the International Journal of Thermal Sciences. North Carolina State University; www.ncsu.edu
Attritor suitable for extremely dense material Union Process, a manufacturer of particle size reduction and dispersing equipment, has custom built an SD100 Attritor for processing a very dense material. ‘Our customer’s application required a very robust mill that could accommodate the very dense material they are processing,’ said Chuck Major, sales manager for
the company. ‘Therefore, this dry grinding mill required a larger motor, reducer and shaft than we would normally build for a mill of this size.’ Because material is discharged into two different 55-gallon drums, Union Process was required to build a heavy-duty riser upon which the SD100 sits. The mill
features a dual discharge (front and back) so the material can be discharged into both drums. The dual discharge configuration allows the product to exit more quickly, increasing turnaround time for each batch. Union Process; www.unionprocess.com
ASL has also invested in uprated sieving and classification systems, allows the company to undertake powder separations from over 100 microns down to less than 5 microns. With these upgrades ASL has increased its production capacity for the finest grades more than twofold, the company said. ASL’s quality control (QC) laboratory has also received a significant expansion with a new Malvern Mastersizer, a total oxygen determination instrument, a compaction press and tensometer for green determination of
water atomized powders, and an XRF chemical analyser. The company has also recruited extra laboratory staff. ‘While a massive increase in orders for water atomized powders has kept us very busy, we have not neglected to develop our capability to serve our gas atomized powder clients with new grades for MIM, AM, HIP and thermal spray processes amongst others,’ said Simon Dunkley, ASL’s managing director. Atomising Systems Limited; www.atomising. co.uk
ASL upgrades gas atomizer Atomising Systems Limited (ASL), based in the UK, has undertaken R&D work on its gas atomizer to meet growing demand for ultrafine gas atomized powders. Following the development of an improved tundish system, the 200 kg batch capacity gas atomizer has now been upgraded with a high power gas heater allowing much higher atomising gas temperatures to be achieved. This, coupled with extensive work on ASL’s gas atomising nozzle system, now enables the production of stainless steels with median particle size of less than 20 microns.
221
PRODUCT SHOWCASE
Metal Powder Report Volume 71, Number 3 May/June 2016