噴(pen)(pen)(pen)丸(wan)(wan)(wan)又分為(wei)噴(pen)(pen)(pen)丸(wan)(wan)(wan)和(he)噴(pen)(pen)(pen)砂。用(yong)噴(pen)(pen)(pen)丸(wan)(wan)(wan)進行(xing)表面處(chu)(chu)理(li)，打(da)擊(ji)力大(da)，清(qing)理(li)效果(guo)明顯。但噴(pen)(pen)(pen)丸(wan)(wan)(wan)對(dui)薄板(ban)(ban)工(gong)(gong)(gong)(gong)件(jian)的(de)(de)處(chu)(chu)理(li)，容易使工(gong)(gong)(gong)(gong)件(jian)變(bian)形，且鋼(gang)丸(wan)(wan)(wan)打(da)擊(ji)到(dao)工(gong)(gong)(gong)(gong)件(jian)表面(無(wu)論拋丸(wan)(wan)(wan)機(ji)或噴(pen)(pen)(pen)丸(wan)(wan)(wan))使金屬(shu)基材產生變(bian)形，由于Fe3O4和(he)Fe2O3沒(mei)有(you)(you)塑性，破碎后剝離(li)，而油膜與基材一(yi)同變(bian)形，所以(yi)對(dui)帶有(you)(you)油污(wu)的(de)(de)工(gong)(gong)(gong)(gong)件(jian)，拋丸(wan)(wan)(wan)、噴(pen)(pen)(pen)丸(wan)(wan)(wan)無(wu)法徹底清(qing)除油污(wu)。在現(xian)有(you)(you)的(de)(de)工(gong)(gong)(gong)(gong)件(jian)表面處(chu)(chu)理(li)方法中(zhong)(zhong)，清(qing)理(li)效果(guo)最佳的(de)(de)還數噴(pen)(pen)(pen)砂清(qing)理(li)。噴(pen)(pen)(pen)砂適用(yong)于工(gong)(gong)(gong)(gong)件(jian)表面要求較高的(de)(de)清(qing)理(li)。但是我國目(mu)前通用(yong)噴(pen)(pen)(pen)砂設備中(zhong)(zhong)多由鉸龍、刮板(ban)(ban)、斗式提升機(ji)等(deng)原始(shi)笨(ben)重輸砂機(ji)械組成(cheng)。用(yong)戶需要施建一(yi)個深地坑及(ji)(ji)做防水(shui)層來裝置機(ji)械，建設費(fei)用(yong)高，維修工(gong)(gong)(gong)(gong)作量及(ji)(ji)維修費(fei)用(yong)極大(da)，噴(pen)(pen)(pen)砂過程(cheng)中(zhong)(zhong)產生大(da)量的(de)(de)矽塵無(wu)法清(qing)除，嚴重影響(xiang)操作工(gong)(gong)(gong)(gong)人(ren)的(de)(de)健康并污(wu)染環境(jing)
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