Kuivajääpuhallus
Kuivajääpuhallus, also known as dry ice blasting, is a cleaning method that utilizes solid carbon dioxide (dry ice) as a blasting medium. The dry ice is propelled at high velocity towards a contaminated surface by a stream of compressed air. When the dry ice pellets strike the surface, they undergo a process called sublimation, transitioning directly from a solid to a gas. This rapid phase change creates a small, localized explosion that lifts and loosens contaminants. The extreme cold temperature of the dry ice, approximately -78.5 degrees Celsius (-109.3 degrees Fahrenheit), also helps to embrittle and shatter many types of coatings and residues, making them easier to remove. Unlike traditional abrasive blasting methods, dry ice blasting is non-abrasive to most surfaces and leaves no secondary waste, as the dry ice simply evaporates. This makes it an environmentally friendly and safe cleaning option for a variety of applications. Common uses include the cleaning of industrial machinery, food processing equipment, electrical components, and automotive parts. It is also used for mold remediation and the removal of paint and graffiti. The effectiveness of dry ice blasting depends on factors such as the type of contaminant, the surface material, and the blasting equipment used.