The American Automotive Aluminum Alliance and the U.S. Department of Energy jointly funded a new recycling technology study that uses advanced laser technology to increase the recovery of aluminum from end-of-life vehicles. Laser Induced Separation Energy Spectroscopy (LIBS) can easily perform complex separation of materials. Jim Quinn of General Motors said that the current separation technology can only separate aluminum from other materials from automotive scrap, but LIBS can separate cast aluminum from rolled aluminum and can even distinguish between different rolled alloys.
To identify a piece of metal, the laser pulse first cleans and evaporates a small piece of material on the metal surface to form a small, highly luminous plasma or ionized gas, which is then analyzed by optical emission spectroscopy. Aluminum Association claims that this invention is a breakthrough because it can provide a method for sorting scrap from alloys.
To identify a piece of metal, the laser pulse first cleans and evaporates a small piece of material on the metal surface to form a small, highly luminous plasma or ionized gas, which is then analyzed by optical emission spectroscopy. Aluminum Association claims that this invention is a breakthrough because it can provide a method for sorting scrap from alloys.
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