Dry ice blasting reduces permanent mold die maintenance by 80%. (Case History).Premier Aluminum, Allenton and Racine, Wisconsin Racine is a city in Racine County, Wisconsin, United States, located beside Lake Michigan at the mouth of the Root River.[2] As of the 2006 census, the city had a total population of 79,592.[3] It is the county seat of Racine County. , an 80-employee aluminum permanent mold foundry, traditionally has used abrasive materials to clean its molds. Molds become covered with coating, dirt and other buildup that interferes with the quality of castings to be produced. Looking for Looking for In the context of general equities, this describing a buy interest in which a dealer is asked to offer stock, often involving a capital commitment. Antithesis of in touch with. a more efficient solution to this problem, the foundry installed four Dry Ice Blasting Definition Dry ice blasting is a process similar to sand blasting, plastic bead blasting, or soda blasting where a medium is accelerated in a pressurized air stream to impact a surface to be cleaned or prepared. Machines from CryoBlast (O'Donohue Industries), Milwaukee, in 1996. The blasters remove debris by shooting small dry ice pellets using compressed air compressed air, air whose volume has been decreased by the application of pressure. Air is compressed by various devices, including the simple hand pump and the reciprocating, rotary, centrifugal, and axial-flow compressors. . When the pellets hit the surface to be cleaned, their kinetic energy kinetic energy: see energy. kinetic energy Form of energy that an object has by reason of its motion. The kind of motion may be translation (motion along a path from one place to another), rotation about an axis, vibration, or any combination of causes them to penetrate to the base material. At that point, they shatter, blasting fragments in all directions, which releases the mold coating from the base material. The dry ice fragments turn from a solid to a gas, and this expansion of carbon dioxide carbon dioxide, chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. ([CO.sub.2]) adds a lifting force that speeds the removal of the mold coating. The debris falls away, and the [CO.sub.2] gas returns harmlessly to the atmosphere. The blasting has no wearing effect on the die surface and is environmentally clean--it leaves behind no leftover material in the atmosphere, on the floor or on the machines, The mold cleaning can be performed on hot molds directly in the molding machine--there is no need to remove the molds or wait for them to cool. Using the blasting machine has resulted in a die maintenance reduction of more than 80% for Premier Aluminum. The process also has saved significant time because it isn't necessary to spend time removing molds or waiting for them to cool before cleaning. Circle No. 002 on last page. |
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