| 摘要 |
PCT No. PCT/SE88/00209 Sec. 371 Date Dec. 21, 1990 Sec. 102(e) Date Dec. 21, 1990 PCT Filed Apr. 25, 1988 PCT Pub. No. WO89/10271 PCT Pub. Date Nov. 2, 1989.The invention relates to a blasting method for removing coatings of paint, varnish or like substances from objects coated with such substances, in which the objects are cooled in a condensed gas, e.g. liquid nitrogen, and then subjected, in a chilled state, to the effect of a blasting agent, e.g. steel shot, delivered by a blasting machine. The coating fragments dislodged are collected together with the blasting agent and mutually separated one from the other in a separator. The recovered blasting agent is then returned to the blasting machine. The method is characterized by adding an absorbent to the blasting agent in the blasting machine.
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