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1969年苏联已出现了曲线叶片(向后弯曲)抛丸器,1976年美国 Pangborn 公司推出RK 型前曲曲线叶片抛丸器,1978年兰州石油化工机械厂自制了后曲曲线叶片抛丸器。这类抛丸器近来引起国内铸造机械工作者浓厚的兴趣,一些研究所和厂家开始研制和生产这类抛丸器。这种曲线叶片抛丸器究竟有哪些特点和长处,叶片前弯和后弯在性能上有何差别,这些问题都是需要弄清楚的,否则便会被某些广告上自相矛盾的宣传所迷
In 1969, the Soviet Union had emerged curved blade (backward bending) shot blasting machine. In 1976, Pangborn Company introduced the RK curved curve blade blasting machine. In 1978, Lanzhou Petrochemical Machinery Factory made back curve curved blade blasting machine. These types of shot blasting machines have recently attracted a great deal of interest from domestic foundry mechanics and some institutes and manufacturers have begun to develop and manufacture such shot blasting machines. What are the characteristics and merits of this curved blade shot blasting machine? What are the differences in the performance of the blade before and after bending? All these problems need to be clarified. Otherwise, they will be contradicted by certain advertisements fan