Dab tsi yog qhov cuam tshuam ntawm txhuas hauv molten zinc ntawm kub-dip galvanizing? Vim li cas cov hmoov txhuas siv los ua ib txheej hauv qab ntawm galvanizing pots?

Cov hmoov txhuas (Pb) muaj lub cubic siv lead ua lattice, lub ntsej muag grey, qhov hnyav ntawm atomic ntawm 207.21, melting point ntawm 327 degree, thiab qhov kub ntawm 1540 degree . Nws tsis muaj qhov tseem ceeb hauv cov txheej galvanized thaum kub-dip galvanizing, thiab nws cov ntsiab lus zoo dua tsis pub tshaj 0.3% (sib npaug rau cov ntsiab lus txhuas hauv Zn-Qib 4 zinc), vim tias nws muaj peev xwm hluav taws xob ntau dua thaum ua ke nrog zinc, li no txo ​​cov corrosion kuj ntawm galvanized txheej. Thaum cov ntsiab lus txhuas ntau tshaj 0.5%, nws tsis tsuas yog exacerbates cov kev tsis zoo ntawm corrosion tab sis kuj ua rau cov txheej galvanized tshwm dull thiab lifeless. Kev ntsuam xyuas tau ua pov thawj tias cov hlau lead tsuas muaj nyob rau hauv cov txheej txheem zinc txheej ntshiab thiab tsis tuaj ntawm cov hlau-zinc alloy txheej. Yog li ntawd, txhuas raws li cov khoom siv alloy ntawm zinc tsis muaj qhov cuam tshuam loj rau cov tshuaj tiv thaiv hlau-zinc. Qee lub chaw ua haujlwm tso cov hlau lead hauv galvanizing pots, nrog lub thickness txog li 10-30 centimeters nyob rau hauv qab. Lub hom phiaj yog txhawm rau tiv thaiv zinc slag los ntawm kev daws teeb meem thiab ua raws li cov hlau hauv qab vim cua sov, thiab tseem yuav pab txhawb kev tshem tawm zinc slag thaum lub sij hawm skimming vim cov hlau lead tsis tshua muaj zog. Txawm li cas los xij, qee lub tsev lag luam tau tso tseg siv lead ua rau ntau yam laj thawj. Ua ntej, txhuas tsis tuaj yeem rov qab tau zoo, nce nqi. Qhov thib ob, feem ntau ntawm galvanizing lauj kaub tam sim no txais yuav sab cua sov txoj kev. Ib qho tseem ceeb ntawm cov cua sov yog pauv nyob rau sab sauv ntawm lub sidewalls ntawm lub lauj kaub galvanizing, ua rau qhov kub thiab txias nyob rau hauv qab ntau dua, yog li ua rau kev tiv thaiv ntawm lub lauj kaub hauv qab tsis tsim nyog. Thib peb, qhov emissions ntawm txhuas vapors ua rau muaj kev pheej hmoo rau cov neeg ua haujlwm thiab ua rau ib puag ncig.