[摘要]: 通過(guò)定期監(jiān)測(cè)鑄造生產(chǎn)環(huán)境中的粉塵、毒物濃度及噪聲強(qiáng)度, 并進(jìn)行17 年動(dòng)態(tài)觀察, 總結(jié)了綜合性治理措施。用電子掃描顯微鏡能散x 線分析(sem - eds) 方法對(duì)鑄造粉塵表面成分進(jìn)行了分析。結(jié)果表明, 清理、造型、配砂、制芯、熔化和落砂等工序游離sio2 含量均超過(guò)10 % , 分散度小于5μm的可吸入性粉塵偏高(6915 %～78 %) , 空氣中矽塵沒(méi)有al 的包裹, 是新鮮的粉塵, 致病性強(qiáng)。采取綜合 ……（快文網(wǎng)http://m.hoachina.com省略363字，正式會(huì)員可完整閱讀）…… l measures are summarized. the contaminants on particulate surface are analyzed by scanningelectron microscopy2energy dispersive x2ray analysis (sem - eds) . the results show that in the processes of shake2out and finishing , molding , sand preparation , pouring , melting and coremaking , all the dusts are silica2containing dust . the respirable dust ( < 5 μm) occupies as high as 6915 %～ 78 %. silica2containing dust infoundry air is not packed by al. it indicates that silica dust in foundry air is fresh and highly pathogenic. withcomprehensive control measures , development of technological innovation and using new chemical materials ,concentrations of dust and toxicants have significantly lowered except the nois ……（未完，全文共7830字，當(dāng)前只顯示942字，請(qǐng)閱讀下面提示信息。收藏鑄造作業(yè)生產(chǎn)過(guò)程中有害因素及其特點(diǎn)分析）
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