PCB manufacturing rhiav, zoo tshuaj tiv thaiv kab mob thiab industrial khib nyiab kua tso tsheb hlau luam tag nrho cov xav tau cua sov pab kiag li lawm khiav stably nyob rau hauv sib tov kua uas muaj zog acid, muaj zog alkali thiab organic corrosive tshuaj. Cov raj cua kub ib txwm ua los ntawm 316 stainless hlau, ntshiab titanium thiab quartz iav tag nrho muaj cov kev pab cuam tsis zoo nyob rau hauv xws li complex tshuaj erosion ib puag ncig. PFA qhwv cov cua sov txais kev sib koom ua ke molded perfluoroalkoxy raws li txheej txheej tiv thaiv, tag nrho cais cov tub ntxhais cua sov sab hauv los ntawm cov kua dej sab nraud. Txawm hais tias nws yog qib siab -qib tiv thaiv- cov khoom siv hluav taws xob corrosion, ntau tus kws tshaj lij kev cob qhia thiab cov neeg ua haujlwm yuav khoom tseem nug txog nws qhov ntev - lub sijhawm ua haujlwm ruaj khov, cov khoom siv tsis raug thiab tag nrho cov nqi ua haujlwm. Daim ntawv no piav qhia txog cov txiaj ntsig tseem ceeb thiab kev siv cov kev txwv ntawm PFA los tiv thaiv - cov cua sov cua sov, thiab txuas cov lus sib piv ntawm cov ntsiab lus ntawm plaub lub ntsiab cua sov.
Qhov zoo tshaj plaws ntawm PFA cov khoom yog nws cov tshuaj zoo heev inertness nyob rau hauv qhov ntsuas kub ua hauj lwm tas mus li. Nws ruaj khov fluorocarbon molecular qauv nyuaj reacts nrog feem ntau inorganic acids, concentrated alkalis, halide brines thiab cov pa muaj organic solvents. Titanium cua sov raj tso siab rau nws tus kheej- kho cov zaj duab xis passivation los tiv thaiv corrosion, tab sis cov txheej tiv thaiv no yuav raug puas tsuaj tas mus li tom qab ntev - lub sij hawm immersion nyob rau hauv kub concentrated alkali kua. Quartz cua sov raj tsuas yog tiv taus ib qho acid corrosion thiab yuav maj mam corroded thiab perforated ib zaug alkaline tshuaj sib tov rau hauv nruab nrab. Tsuas yog cov qauv sib txuas tsis sib haum ntawm PFA tuaj yeem tsim txhua yam - puag ncig tiv thaiv cov kua qaub thiab alkali yaig. Ntxiv mus, lub ultra- du txheej txheej ntawm PFA txheej yog ib qho nyuaj rau xa cov av thiab tshuaj scale, zam lub zos concentrated corrosion tshwm sim los ntawm cov av tsub zuj zuj thiab zoo heev txo cov kev tu txhua hnub ntawm cov kab ntau lawm.
Cov lus hauv qab no sib piv cov kev ua haujlwm tseem ceeb ntawm plaub yam khoom siv tiv thaiv-corrosion cua sov:
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 | Tus nqi tag nrho Lifecycle Comprehensive |
|---|---|---|---|---|---|
| PFA qhwv lub rhaub | Sab saum toj -qib cais rau cov kua sib xyaw ua kua | 250 degree | General; khawb yuav ua puas txheej txheej | Tsis muaj kuab paug ua ntej txheej puas tsuaj | Nruab nrab -High |
| 316 Stainless hlau rhaub | Tsis zoo, yooj yim rau tsim cov pits corrosion thiab perforate sai | 560 degree | Tsis tshua muaj siab structural hardness | Taug qab hlau ion nag lossis daus | Tsawg |
| Ntshiab Titanium rhaub | Zoo heev acid kuj, invalid nyob rau hauv kub alkali ib puag ncig | 780 degree | Muaj zog mechanical toughness | Me me hlau ion dissolution | Siab |
| Quartz cua sov Tube | Tsuas yog cov kua qaub- pov thawj, hnyav corroded los ntawm alkali kua | 1180 degree | Tsis tshua muaj zog nyob rau hauv kev sib tsoo thiab kev co | Zero contamination txaus ntshai | Nruab nrab |
Hauv qhov tseeb PCB etching cov kab ntau lawm, qhov nruab nrab cua sov feem ntau hloov ntawm hydrofluoric acid etching kua thiab alkaline stripping kua. Stainless hlau cua sov yuav tsim hluav taws xob xau zais kev phom sij tom qab ib hlis ntawm kev siv tas li. Titanium cua sov tubes poob kev ua tau zoo sai nyob rau hauv ntev - lub sij hawm alkaline soaking, thaum quartz hlab tawg yooj yim nyob rau hauv cov kua cuam tshuam thiab rov txias thiab kub alternation. Ntawm qhov tsis sib xws, PFA qhwv cov cua sov tuaj yeem ua haujlwm ruaj khov rau ntau tshaj 20 lub hlis sib law liag nrog tus nqi qis heev, txiav kev lag luam poob los ntawm kev hloov khoom siv ntau zaus thiab raug yuam kaw. Nyob rau tib lub sijhawm, PFA nws tus kheej muaj kev ua haujlwm zoo rwb thaiv tsev, uas tuaj yeem txo cov hluav taws xob txaus ntshai hauv cov chaw ua haujlwm corrosive chemical thiab txhim kho kev nyab xeeb tag nrho.
Txawm li cas los xij, ob qho kev tsis txaus ntseeg txwv tsis pub siv thoob ntiaj teb ntawm PFA qhwv cov cua sov. Ua ntej, qhov ntev -lub sij hawm ntsuas kub ntawm 250℃ua rau nws tsis tuaj yeem siv rau txhua qhov siab - kub qhuav cua sov txheej txheem. Qhov thib ob, fluoroplastic txheej txheej tsis tuaj yeem tiv taus khawb; Thaum cov txheej txheem tiv thaiv raug muab pov tseg, cov hlau hauv cov cua sov yuav ncaj qha hu rau cov kua corrosive thiab yuav tsum tau muab pov tseg sai. Tsis tas li ntawd, txoj kev sib xyaw ua ke thiab sealing tshuab ua rau cov nqi tsim khoom. Yog tias cov chaw lag luam siv PFA cov cua sov rau cov cua sov dej zoo tib yam thiab tsis muaj zog corrosive ua haujlwm, nws yuav ua rau cov nyiaj tsis tsim nyog pov tseg.
Hauv cov ntsiab lus, PFA qhwv cov cua sov yog cov cua sov uas tsim nyog tshaj plaws rau nruab nrab - cov kab hluav taws xob qis uas raug kev txom nyem los ntawm cov kua qaub thiab alkali corrosion. Txwv los ntawm qhov kub thiab txias tsis muaj zog khawb, nws tsis tuaj yeem hloov cov hlau tsis muaj steel, titanium thiab quartz cua sov raj. Cov tuam txhab lag luam yuav tsum muab qhov tseem ceeb rau PFA qhwv cov cua sov thaum cua sov ntau - cov kua roj corrosive. Rau lwm cov txheej txheem tsim khoom, xaiv cov cua kub ntawm lwm yam peb cov ntaub ntawv raws li qhov nruab nrab muaj pes tsawg leeg, qhov xav tau ntawm qhov kub thiab txias, ntawm -site mechanical ib puag ncig thiab kev yuav khoom siv nyiaj kom paub txog qhov zoo tshaj plaws ntawm cov khoom ruaj khov thiab cov txiaj ntsig kev lag luam.
