Cov tshuaj zoo synthesis, PCB etching txheej txheem thiab cov khoom siv hluav taws xob pov tseg kev kho mob feem ntau xav tau cov cuab yeej cua sov kom ua haujlwm ruaj khov hauv cov kua sib xyaw uas muaj cov kua qaub, muaj zog alkali thiab cov kuab tshuaj organic ib txhij. Cov raj cua kub ib txwm ua los ntawm 316 stainless hlau, titanium thiab quartz tag nrho qhia pom kev ua haujlwm tsis zoo thaum raug rau ntau yam -cov khoom siv corrosive media. PFA cua sov raj txais kev sib xyaw ua ke perfluoroalkoxy resin ua cov txheej tiv thaiv sab nrauv, sib cais tag nrho cov tub ntxhais cua sov sab hauv los ntawm cov kua dej corrosive. Txawm hais tias tau muab faib ua qib siab - kawg tiv thaiv - cov khoom siv cua sov, ntau tus kws tshaj lij pem hauv ntej thiab cov thawj tswj kev yuav khoom tseem muaj kev tsis ntseeg txog nws lub sijhawm ntev - khiav ruaj khov, qhov tsis zoo thiab kev lag luam rov qab los ntawm kev yuav khoom. Ua ke nrog cov tshuaj tsis muaj zog ntawm cov khoom siv PFA, cov tswv yim siv tswv yim thiab ntau - qhov sib piv tsis sib xws, daim ntawv no tau txheeb xyuas qhov tseem ceeb ntawm kev sib tw zoo thiab kev txwv tsis pub siv cov kev txwv ntawm PFA los tiv thaiv -cov kav dej cua sov.
PFA boasts tus qauv molecular ruaj khov heev thiab zoo heev tshuaj inertness. Nyob rau hauv nws qhov ntsuas qhov ntev -lub sij hawm kev pab cuam qhov kub thiab txias, nws NW nyuam qhuav dhau cov tshuaj tiv thaiv nrog feem ntau inorganic acids, muaj zog alkalis, halide daws thiab cov pa organic reagents. Titanium cua sov raj ua tau zoo tiv thaiv ib leeg acid thiab chloride corrosion, tsis tau lawv cov zaj duab xis passivation nto yuav decompose sai heev nyob rau hauv kub concentrated alkaline daws; quartz cua sov raj tsuas yog xa cov kua qaub thiab yuav maj mam etched ib zaug nyob rau hauv kev sib cuag nrog alkaline tshuaj. Tsuas yog lub seamless integrated cladding qauv ntawm PFA tuaj yeem cais cov khoom sib xyaw corrosive. Ntxiv mus, lub ultra- du sab nrauv ntawm PFA ua rau nws nyuaj rau cov sediments thiab cov tshuaj residues los ua kom ruaj khov, tshem tawm hauv zos concentrated corrosion tshwm sim los ntawm cov av tsub zuj zuj thiab txiav ntau zaus ntawm kev tu cov kab ntau lawm.
表格
| Hom khoom siv cua sov | Comprehensive Acid-Alkali Corrosion Resistance | Max Ntev -Lub Sijhawm Ua Haujlwm Kub | Anti-Kaw Kev Ua Haujlwm | Medium Contamination Risk | Tag Nrho-Tus Nqi Ua Haujlwm Lub Neej |
|---|---|---|---|---|---|
| PFA rhaub | Sab saum toj-tier tag nrho- puag ncig tiv thaiv- muaj peev xwm corrosion | 250 degree | Nruab nrab; txheej peels tawm nyob rau hauv ntse khawb | Zero impurity dissolution | Nruab nrab -High |
| 316 Stainless hlau cua sov Tube | Tsis zoo, nquag perforation sai puas | 560 degree | Muaj zog heev rigidity | Taug qab hlau ion nag lossis daus | Tsawg |
| Ntshiab Titanium Heating Tube | Cov kua qaub zoo heev, tsis yooj yim rau kub alkali corrosion | 780 degree | High mechanical toughness | Negligible impurity to | Siab |
| Siab -Purity Quartz Tube | Acid- tsuas yog tiv taus, hnyav heev los ntawm alkali | 1180 degree | Tsis tshua muaj zog tiv thaiv kev cuam tshuam | Tsis muaj kab mob kis tau | Nruab nrab |
Cov lus sib piv qhia meej meej tias PFA cov cua sov cov raj muaj cov npoo tsis tuaj yeem hloov tau raws li kev sib xyaw ua haujlwm corrosive. Hauv PCB etching Rhiav, qhov nruab nrab cua sov yog sib xyaw ntawm hydrofluoric acid thiab alkaline stripping kua. Stainless hlau raj yuav corrode thiab ua rau hluav taws xob xau nyob rau hauv ib lub hlis, titanium raj raug kev txom nyem tsis tu ncua yaig los ntawm alkaline cov khoom xyaw, thiab quartz hlab yog nquag mus tawg nyob rau hauv cov kua. Nyob rau hauv sib piv, PFA cua sov raj tuaj yeem khiav tsis tu ncua rau ntau tshaj 20 lub hlis nrog ob peb malfunctions, zoo txo kev lag luam poob los ntawm kev hloov khoom siv ntau zaus thiab raug ncua. Tsis tas li ntawd, PFA nws tus kheej nta txhim khu kev qha rwb thaiv tsev kev ua tau zoo; Txawm tias me me abrasion ntawm cov txheej tiv thaiv sab nrauv tuaj yeem tiv thaiv kev sib tsoo hluav taws xob zoo thiab nqa tag nrho kev nyab xeeb ntawm cov chaw ua haujlwm tshuaj.
Txawm tias muaj kev tiv thaiv zoo tshaj - kev ua haujlwm corrosion, PFA cua sov raj muaj qhov txwv tsis pub tiv thaiv kev siv thoob ntiaj teb. Nws qhov siab tshaj plaws nyob ntev -lub sijhawm ua haujlwm kub tsis tuaj yeem siab tshaj 250 degree, yog li nws tsis tsim nyog rau qhov siab - kub qhuav cua sov txheej txheem saum toj no qhov pib. Thaum cov txheej txheej fluoroplastic sab nrauv yog khawb los ntawm cov khoom ntse ntse, lub hauv paus hlau cua sov yuav ncaj qha hu rau cov kua corrosive thiab muab pov tseg hauv lub sijhawm luv luv. Tsis tas li ntawd, kev sib koom ua ke nyuaj thiab cov khoom siv sib khi sib khi ua rau cov nqi tsim khoom, yog li siv PFA cov cua sov raj rau cov dej huv zoo tib yam cua sov thiab qis-cov xwm txheej ua haujlwm corrosion yuav ua rau cov nyiaj siv tsis tsim nyog rau kev lag luam.
Nyob rau hauv cov ntsiab lus, PFA cua sov raj yog qhov tsim nyog tshaj plaws cua sov tov rau cov kab ntau lawm plagued los ntawm composite acid thiab alkali corrosion. Kev txwv los ntawm nws qhov kub thiab txias tsis muaj zog thiab khawb tsis muaj zog, nws tsis tuaj yeem hloov pauv lwm yam peb hom cua sov. Cov tuam txhab lag luam yuav tsum ua qhov tseem ceeb rau PFA cov cua kub cua sov thaum tuav ntau- cov ntsiab lus corrosive cov ntsiab lus, thaum xaiv cov titanium, quartz lossis 316 stainless hlau cua sov raj raws li qhov xav tau ntawm qhov kub thiab txias, ntawm - qhov chaw kho tshuab thiab kev siv nyiaj rau lwm cov txheej txheem ntau lawm.
