INDUSTRY NEWS
Metalcasting Byproduct Can Be Used in New Cement Engineers at Drexel Univ.,
Philadelphia, have developed a new formulation for cement that utilizes limestone and slag, a waste product produced during melting for the met- alcasting process. According to a statement by the
university, the product is more energy efficient and cost effective than ordi- nary Portland cement. Increased use of the material would give metalcasters an alternative slag disposal method. “Cement consumption is rapidly rising, especially in newly industrial-
ized countries,” said Alex Moseson, a lead researcher on the project. Drexel’s cement is made of up to 68% unfired limestone, a plentiful, cheap and low-carbon dioxide re- source. A small amount of commercial alkali chemical, along with the iron slag byproduct, is added to this base. In Portland cement, the substitute for this mixture is produced by firing a number of ingredients in a kiln. Te next step for the cement
is bringing it to market, which the group is working toward via a start-up company called Greenstone Technologies Inc.
Diecaster MRT Announces New Equipment, Business
MRT Castings Ltd., Andover,
U.K., announced it has expanded its machining and diecasting operations in response to growing customer demand. Te company said in a press release
it has invested in robotic diecasting and CNC machining equipment, including 10 machining centers. “We believe in combining the
technological best practice of the biggest foundries with the flexibility of smaller foundries,” said Managing Director Phil Rawnson. MRT said it is seeing an increase
in work for the medical technology sector in both Europe and the U.S., including components for manufactur- ers of endoscopes, oncology equip- ment and, most recently, a suite of 18 components for a new range of critical care ventilators. Other recent aluminum casting
contracts include hand controllers for remote weapon stations, tone arms for audiophile hi-fi turntables, print heads for food labeling machines, safety lights for the offshore oil industry and gearbox cases for stair-lifts. MRT, which has annual revenues of
$6.8 million, also provides gravity per- manent mold and sand castings.
10 | MODERN CASTING April 2012
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