Purmuring, tu, flushing, soaking hnyav, ziab. Cov yeeb nkab welded raug tshem tawm los ntawm kev tsav tsheb mus rau lub tank pickled rau pickling (txog 2 tons ntawm txhua dai).
Kwv yees li 26% ntawm hydrochloric acid daws tau tawm. Txhawm rau tiv thaiv kom tsis txhob muaj ntau dhau ntawm pickling thiab volatilization ntawm acid pos huab, ntxiv 0.5 ~ 1.0g/L composite thiab fgotic tus neeg sawv cev rau cov kua qaub ntxuav tus neeg sawv cev, uas yog khaws nyob rau hauv ib txwm kub. Rau 30 mus rau 60 feeb, txhawm rau ua kom cov yeeb nkab steel sib npaug tuaj, cov yeeb nkab steel yog nqa 2 mus rau 3 zaug thaum lub sijhawm khaws cov txheej txheem los txhim kho cov nyhuv pickling. Thaum cov kua qaub concentration poob mus rau 100g / L, nws yuav tsum tau ntxiv los yog hloov, thiab cov ntsiab lus hlau ncav cuag 220 ~ 260g / L raws li cov kua qaub emissions.
Cov yeeb nkab steel pickled raug tshem tawm los ntawm kev tsav tsheb mus rau lub tank ntxuav kom tshem tawm cov kua qaub thiab hlau ntsev uas muaj nyob rau saum npoo ntawm cov yeeb nkab steel. Cov yeeb nkab steel raug tshem tawm hauv qhov hnyav, thiab lub sijhawm dipping yog li ib feeb. Cov kuab tshuaj siv 600 ~ 650g / L zinc chloride thiab 80 ~ 100g / L ammonium chloride thiab 1 ~ 2g / L OP-10 surfactant.
Txhawm rau txhim kho cov nyhuv ua ntej plating hauv cov kuab tshuaj ntawm cov yeeb nkab steel, cov kuab tshuaj ib txwm tswj cov alkaline tsis muaj zog, thiab tom qab ntawd hangs los ntawm kev tsav tsheb mus rau lub qhov cub qhuav rau hauv qhov cub kom qhuav. Qhov kub kom qhuav yog 100 ~ 130 degrees, thiab lub sijhawm feem ntau yog 6 ~ 10 feeb.
Qhov zoo tshaj plaws ntawm galvanized sulfate galvanized galvanized kav yog tias tam sim no efficiency siab li 100% thiab cov deposition ceev ceev. Qhov no yog unparalleled los ntawm lwm yam txheej txheem galvanized.
Optimization ntawm sulfate galvanized kav:
Vim yog cov muaju tsis txaus ntawm plating, thiab tsis muaj peev xwm decentralized thiab sib sib zog nqus plating muaj peev xwm, nws tsuas yog tsim rau electroplating xws li cov kav dej nrog cov duab geometric yooj yim thiab cov xov. Cov txheej txheem sulfate-galvanized hlau alloy yog optimized rau cov tsoos sulfate galvanized galvanized txheej txheem. Tsuas yog zinc sulfate khaws cia, thiab cov khoom seem raug tso tseg. Ntxiv rau qhov tsim nyog ntawm cov ntsev ntsev rau kev tsim cov qauv txheej txheem tshiab, kom cov txheej txheem qub txheej txheem zinc hlau alloy plating.
Lub reorganization ntawm cov txheej txheem tsis tsuas yog txhawb nqa qhov zoo ntawm cov thawj txheej txheem tam sim no efficiency thiab ceev deposition tus nqi, tab sis kuj zoo heev txhim kho lub decentralized thiab sib sib zog nqus-plating muaj peev xwm. Yav dhau los, complex qhov chaw tsis tuaj yeem muab tso rau. 3 mus rau 5 npaug ntau dua li cov hlau ib leeg. Kev xyaum ntau lawm tau ua pov thawj tias nws yog siv rau kev sib txuas txuas ntxiv ntawm cov xov hlau thiab cov kav dej. Lub plating nplej nplej yog ntau refined, ci dua li qub, thiab ceev sedimentary tus nqi. 2 - MIN's internal plating thickness ua tau raws li qhov yuav tsum tau ua.
