Particle Blasting using Crystalline Ice
Author: Somyong Visaisouk, Somnuk Vixaysouk
Source: US Patent 5,367,838
Doc ID: 1994011
Year of Publication: 1994
Abstract:
The invention relates to an improved method and apparatus for particle blasting utilizing crystalline ice. A theory of impact erosion is presented, as opposed to conventional abrasive techniques, which allows for the development of ice blast conditions to achieve a maximum efficiency for surface cleaning and coating removal applications. By impacting a surface with ice particles which have been treated to bring their temperature near the melting point of ice, erosion is effected by a rupture process caused by the well known reactionforce. It has been found that warming of the ice particles can be realized by simply utilizing unconditioned blast air taken directly from a high pressure compressor.
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