Kev sib cuam tshuam cov tshuaj lom neeg cov tshuaj tiv thaiv kab mob, automated PCB etching cov kab ntau lawm thiab cov chaw tsim khoom lag luam sib xyaw cov khoom siv khib nyiab ntau zaus tau rov qab hloov ntawm cov kua qaub thiab alkaline xov xwm, nrog rau ntev - lub sij hawm yaig los ntawm cawv, ester thiab lwm yam organic solvents. Cov khoom siv hluav taws xob ua kom sov cov raj uas sawv cev los ntawm 316 stainless hlau thiab cov titanium ntshiab cia siab rau cov yeeb yaj kiab ua ntu zus los tiv thaiv - tiv thaiv corrosion. Kev hloov pauv tsis tu ncua ntawm tus nqi pH txuas ntxiv rhuav tshem cov txheej txheem tiv thaiv no, uas tsis tuaj yeem kho tau raws sijhawm, thaum kawg ua rau pitting corrosion, dhau los ntawm - phab ntsa perforation thiab thaum ntxov scrappage ntawm lub raj lub cev. Quartz cua sov raj muaj kev ruaj ntseg zoo nyob rau hauv ib puag ncig acidic tab sis yuav raug kev txom nyem irreversible tshuaj etching ib zaug raug rau alkaline kua. Ua raws li txoj cai ntawm kev sib cais ntawm lub cev, kev txhaj tshuaj tsis sib haum xeeb- pwm PFA cov cua sov cov raj ua tiav cais cov cua sov sab hauv cov hlau los ntawm txhua yam khoom siv corrosive, ua rau lawv siv tau rau cov chaw ua haujlwm nyuaj thiab dynamically hloov corrosive ua haujlwm ib puag ncig. Daim ntawv no piav qhia txog cov khoom muaj zog, cov kev txwv tsis pub muaj thiab cov qauv kev xaiv cov ntaub ntawv tshawb fawb ntawm PFA cov raj cua sov, ua ke nrog cov khoom lag luam - tshiab ntsuas qhov ntsuas qhov sib piv.
Qhov tseem ceeb ntawm kev sib tw ntawm PFA cov khoom yog los ntawm nws qhov dav -spectrum tshuaj inertness. Tsis zoo li cov ntaub ntawv hlau uas nws tiv thaiv -corrosion kev ua tau zoo yog txwv los ntawm pH tus nqi ntawm qhov nruab nrab, fluoropolymer txheej txheej ntawm PFA cua sov raj tsis chemically reacts nrog feem ntau inorganic acids, muaj zog alkalis thiab muaj organic solvents. The dense and continuous coating forms a permanent barrier to block the infiltration of corrosive ions, perfectly adapting to the frequent replacement of reaction solutions in batch intermittent production. Lub caij no, lub ultra- du txheej txheej zoo heev txo cov adhesion ntawm crystalline ntsev precipitates thiab tshuaj lom neeg av, tsis txhob poob ntawm tshav kub pauv efficiency tshwm sim los ntawm scaling lub sij hawm ntev - ua hauj lwm. Nws cov hluav taws xob rwb thaiv tsev zoo heev tshem tawm cov hluav taws xob hluav taws xob txaus ntshai nyob rau hauv cov chaw ua haujlwm ntawm cov av noo thiab corrosive, txhim khu kev ruaj ntseg ntawm cov khoom siv ntau lawm.
Lub rooj sib tw tshiab uas tsim los rau cov kua qaub- puag alternating composite corrosion scenarios yog teev hauv qab no:
表格
| Cua sov Tube hom | Kev tiv thaiv rau Cyclic Acid-Base Switching | Organic Solvent Stability | Nto Anti-Kaw Capacity | Ntev -Lub Sij Hawm Zoo Ua Haujlwm Kub Kub | Tag Nrho -Life Cycle Economic Efficiency |
|---|---|---|---|---|---|
| PFA Encapsulated rhaub | Zoo heev, tsis muaj kev ua haujlwm attenuation tom qab ntau lub voj voog | Kev ruaj ntseg tshuaj lom neeg siab | Tsis muaj zog, yooj yim rau cov khoom tawv tawv khawb khawb | 250 degree | Kev nqis peev pib nruab nrab, qis tom qab tus nqi tu |
| 316 Stainless hlau | Tsis zoo, rov qab vau ntawm passivation zaj duab xis | Nruab nrab stability | Tsis tshua muaj zog mechanical resistance | 550 degree | Tsawg tus nqi yuav khoom, poob siab los ntawm kev hloov chaw kaw |
| Ntshiab Titanium | Tsuas yog siv nyob rau hauv acidic media, kiag li invalid nyob rau hauv kub concentrated alkali | Nruab nrab stability | Tsis tshua muaj zog mechanical resistance | 770 degree | High procurement nqi, nqaim siv nruab nrab ntau yam |
| Quartz cua sov Tube | Tsis tshua muaj neeg pluag, ceev corrosion tsis ua hauj lwm nyob rau hauv alkaline ib puag ncig | Kev ruaj ntseg tshuaj lom neeg siab | Tsis tshua muaj zog nyob rau hauv kev cuam tshuam | 1180 degree | Tsuas yog txwv rau siab -kub ib leeg cov kua qaub |
Hauv kev tsim hluav taws xob tsim hluav taws xob thiab cov tshuaj siv tshuaj, PFA cov raj cua sov kom huv si daws qhov ntev - sawv kev lag luam qhov mob ntawm qhov kev pab cuam luv luv ntawm cov khoom siv cua sov nyob rau hauv alternating acid-base composite corrosion. Nws tiv thaiv cov khoom tiav cov khoom paug los ntawm cov hlau ion nag lossis daus, txo tus nqi siab ntawm -cov tshuaj reagents precision, thiab txo qhov kev poob nyiaj txiag los ntawm kev tswj tsis tau kaw. Rau nruab nrab- cov txheej txheem kub tsis tshua muaj siab nrog cov khoom nruab nrab tsis ruaj khov, nws txoj kev ua tau zoo tsis tuaj yeem hloov los ntawm cov hlau thiab quartz cua sov raj.
Txawm li cas los xij, PFA cua sov raj muaj ob qhov tseem ceeb hauv qhov tsis xws luag. Ua ntej, qhov ntev -lub sij hawm nyab xeeb kub qab nthab ntawm 250℃ua tsis tau raws li cov txheej txheem ntawm siab - kub reflux decomposition thiab thermal synthesis tshwm sim. Thib ob, fluoroplastic cladding muaj kev hnav tsis zoo; ib zaug punctured los ntawm cov impurities nyuaj, cov hlau sab hauv substrate yuav ncaj qha corroded thiab tsis instantly. Tsis tas li ntawd, cov txheej txheem kev sib xyaw ua ke tsis sib haum xeeb ua rau cov khoom siv ntau dua li cov hlau tsis muaj steel cua sov zoo tib yam.
Nyob rau hauv cov ntsiab lus, integrally encapsulated PFA cua sov raj yog lub hom phiaj tshaj plaws thiab txhim khu kev qha cua sov tov rau nruab nrab - kub kub ua hauj lwm tej yam kev mob nrog alternating acid- puag corrosion thiab organic solvent cuam tshuam. Cov kws tshaj lij tsim khoom yuav tsum xaiv cov khoom siv cua sov nruj me ntsis raws li cov txheej txheem kub, nruab nrab muaj pes tsawg leeg thiab nyob rau ntawm - qhov chaw kho tshuab kev co, kom ua tiav qhov zoo sib npaug ntawm cov khoom siv ruaj khov thiab tag nrho cov nqi peev txheej.
