New eWave Technology by Federal Mogul
Reduced oil consumption, the total height of the piston system and reduced friction are today’s main drivers in developing highly efficient Large Bore Engines.
1. New dry-ice-blasting process reduces waste that is subject to special disposal
Due to the previously used sand blasting method, an unavoidable carry over of blasting corundum occurs in the chromiumplating tanks. This process thus shortens the service life of the chromium-plating tanks. Used tanks/electrolytes and the blasting corundum must be disposed of as hazardous waste (waste containing CrVI).
Using Linde's CRYOCLEAN Complete® dry-ice blasting method as a cleaning process before chromium plating, sludge subject to special disposal is reduced by about 50%. The advantages for the environment and quality are obvious. In the new method, ice micro-particles are used, which hit the surface at high speed. The CO2 dry-ice used as blasting abrasive transforms from a solid to a gas when it hits the surface and is suctioned away. The dust particles fall into a container and can be disposed of very easily. Since no filter is required for blasting corundum, inhalative stress is reduced. The layer adhesion is not influenced as the surface is also pre- etched before chromium plating. The chromium docking takes place on an atomic basis and does not depend on pre-cleaning conditions.
2. Automatic reduction of iron content reduces waste containing CrVI
During a standard galvanic chromium-plating process, dissolved iron is formed in the electrolytes. Due to the new deironing plant, this dissolved iron can be bound and precipitated away. The service life/service period of the chromium-plating tanks is thus considerably extended as the wastes requiring special disposal (used electrolytes) are reduced by about 60%. The more consistent handling of the electrolytes additionally improves quality.
3. New heating method for chromium-plating tanks lowers energy consumption and thus reduces environmental impact
The new gas heating, which has replaced the electrical heating reduces the time required to heat up the chromium plating tanks, thus enabling more efficient heating. The energy consumption has been reduced by approximately 25%. The constant heating of the chromium-plating tanks permits an improvement in the product quality and reduces inhalative stress.
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