Yuav txheeb xyuas thiab tshem tawm cov kab mob tawv ncauj li cas los ntawm PTFE Heating Plate Surfaces?

Lub PTFE cua sov phaj uas siv los ua kom huv si, txawm tias cua sov tam sim no muaj qhov tsaus ntuj nti, dawb crusty thaj ua rau thaj, lossis ib txheej hazy ntawm nws qhov chaw. Cov ntaub so quav los yog cov tshuaj ntxuav me me tsis tuaj yeem rov qab zoo li qub, cov cua sov ua haujlwm poob qis heev, thiab cov ntaub ntawv kho mob qhia qhov tsis zoo, suav nrog cov cim scorch hauv qee qhov chaw thiab kev kho tsis tiav hauv lwm tus. Cov pa phem ua rau nws nyuaj rau cov cua sov kom ntws thiab ua rau thaj tsam kub lossis qhov chaw txias. Cov neeg ua haujlwm hauv kev saib xyuas thiab kev tswj xyuas kom zoo muaj qhov teeb meem uas txuas ntxiv mus: cov khoom siv tsis tu ncua uas tsis tuaj yeem tawm nrog kev ntxuav tsis tu ncua thiab ua rau muaj kev puas tsuaj rau lub neej ntawm daim hlau thiab cov khoom zoo. Paub tias hom kab mob dab tsi yog pab koj xaiv txoj hauv kev kom tshem tau nws thiab ua kom lub ntsej muag tsis zoo ntau dua li qhov xav tau.

Nrhiav cov kab mob ntau tshaj plaws Muaj ntau yam sib txawv ntawm qhov chaw paug ntawm PTFE cua sov daim hlau, txhua tus muaj nws tus kheej saib thiab qhov chaw.

Carbonised residues zoo li dub, xim av, los yog tar -zoo li ci - ntawm deposits. Cov no tshwm sim thaum cov organic tebchaw xws li roj, nplaum, polymers, lossis cov txheej txheem pov tseg tau kub dhau thiab pyrolyse thiab fuse rau saum npoo thaum hloov kub lossis qhuav khiav. Cov deposits yog ib qho nyuaj thiab nkig, tsis tuaj yeem tawm tau yooj yim, thiab feem ntau tsim nyob qhov twg cov cua sov yog concentrated.

Mineral scale ua dawb, grey, los yog tawm -dawb crusty coatings. Qhov no feem ntau tshwm sim thaum cov dej tawv, cov kua dej txias, lossis cov txheej txheem ntws tau yaj calcium, magnesium, lossis silicates hauv lawv. Cov inorganic deposits tsim nyob rau lub sij hawm, xav tias hnyav rau qhov kov, thiab tej zaum yuav flake tawm yog tias koj hu rau lawv. Kev ntsuas ntau dua nyob rau hauv cov xwm txheej thaum dej -raws li kev kho mob los yog chav condensate siv.

Tshuaj stains tshwm sim raws li discoloration, yellowing, brownish tinting, los yog iridescent txheej, tab sis lawv tsis tsim ntau thickness. Concentrated oxidisers, halogens, thiab tej kuab tshuaj yog cov piv txwv ntawm aggressive media uas maj mam react nrog PTFE nto, generating saw scission los yog nto oxidation. Cov cheeb tsam uas raug cuam tshuam feem ntau zoo li npub lossis chalky es tsis txhob ci.

Thaum cov polymers kub, resins, lossis cov nplaum kov lub phaj thiab kho lossis hla -txuas rau saum npoo, cov txheej txheej polymerised. Cov no zoo li nyias, tawv, saib - dhau ntawm - mus rau - cov yeeb yaj kiab opaque uas tsis yaj hauv cov kuab tshuaj thiab hnov ​​​​me ntsis nplaum los yog khov kho nyob ntawm hom polymer.

Ua ntej ntxuav, koj yuav tsum paub seb lub hom phiaj tshem tawm cov tswv yim siv. Ib qho kev sim yooj yim nrog cov dej poob qhia txog kev solubility: cov hlaws dej nce thiab dov tawm cov organic lossis polymerised deposits, thaum nws yuav soften los yog yaj ntxhia nplai. Isopropyl cawv thiab acetone yog cov kuab tshuaj organic uas sai sai ntub carbonised residues tab sis tsis ua ntau rau inorganic crusts.

Rau carbonised residues, siv sov (40-60 degree) alkaline ntxuav zoo li 2-5% sodium hydroxide tov los yog coj mus muag carbon tshem tawm ua rau fluoropolymer. Muab lub phaj tso rau hauv dej rau 30 mus rau 60 feeb, tom qab ntawd maj mam txhuam nws nrog cov txhuam mos nylon lossis yas scraper. Tsis txhob siv cov cuab yeej hlau uas khawb PTFE. Ultrasonic tu hauv tib txoj kev daws teeb meem kom tshem tawm qhov nyuaj ci- ntawm cov coatings yam tsis muaj khawb. Txhawm rau kom tsis txhob muaj dej, yaug zoo nrog dej deionised thiab cia nws qhuav tag.

Mineral nplai ua haujlwm zoo nrog kev kho mob me me. Siv cov kev daws teeb meem ntawm 5-10% citric acid, acetic acid, lossis phosphoric acid ntawm 40-50 degree. Nyob ntawm seb cov khoom tuab npaum li cas, tsau rau 15 mus rau 60 feeb, tom qab ntawd maj mam txhuam nws nrog txhuam txhuam thiab yaug kom zoo. Chelating chemicals, xws li EDTA- cov tshuaj ntxuav tes, pab calcium thiab magnesium deposits dissolve zoo dua. Tsis txhob siv cov ntxhia pob zeb muaj zog (xws li hydrochloric lossis sulfuric) tshwj tsis yog tias koj ntseeg siab tias lawv yuav ua haujlwm ua ke. Kev raug ncua ntev tuaj yeem ua rau ntawm qhov chaw.

Cov tshuaj stains thiab me me oxidation yog nyuaj rau tshem tawm. Tsis txhob siv cov kuab tshuaj hnyav lossis abrasives. Feem ntau, maj mam polishing nrog ib daim ntaub microfibre thiab isopropyl cawv yuav tshem tawm cov stains. Rau cov stains ntxaum, cov kev kho tshwj xeeb uas muaj kev nyab xeeb rau fluoropolymers thiab muaj cov tshuaj txo qis tuaj yeem kho oxidation yam tsis tau tshem tawm cov khoom siv. Yog hais tias cov khoom tau ua tsis taus, nws yuav tsum tau hloov.

Polymerised coatings xav tau cov kuab tshuaj uas zoo ib yam li cov khoom qub. Rau ntau cov resins, qhov no yog methylene chloride los yog N-methylpyrrolidone. Txawm li cas los xij, qhov no tsuas yog tom qab me me - thaj chaw kuaj pom tias PTFE tsis raug tawm tsam. Txhawm rau soften lub deposit, sov lub phaj rau 80-100℃thiab maj mam txhuam nws nrog ib tug yas cuab tam. Ntxuav nrog ultrasound nyob rau hauv txoj cai hnyav feem ntau ua tiav txoj hauj lwm.

Ib qho kev sim yooj yim nrog lub tee dej yuav pab koj paub seb qhov tso nyiaj puas yog cov organic lossis dej -soluble. Ib qho yuam kev feem ntau yog siv cov txheej txheem abrasive ntawm cov nyiaj uas koj tsis paub txog. Qhov no tuaj yeem ua mob rau PTFE nto tas li vim khawb ua rau nws yooj yim dua rau kev kis kab mob thiab ua rau qhov chaw tsis sib xws ntawm cov cua sov.

Thawj txoj hauv kev los ntxuav lub phaj yam tsis muaj kev puas tsuaj yog los txheeb xyuas nws kom raug. Kev sib kis ntawm qhov chaw, kev txheeb xyuas qhov tso nyiaj, cov khoom seem carbonised, cov pob zeb hauv av, thiab cov phiaj xwm tshem tawm yog txhua yam tseem ceeb rau kev nyab xeeb. Rau kev saib xyuas tsis tu ncua, kev tu txhua hnub yooj yim yog qhov zoo dua. So nrog isopropyl cawv los yog cov tshuaj alkaline me me tom qab siv yuav tsum nres thiab ua kom lub ntsej muag tsis zoo. Yog tias koj tsis tuaj yeem tshem tawm cov kev tsis sib haum xeeb nrog cov txheej txheem tsim nyog lossis yog tias qhov tso nyiaj ua rau muaj kev puas tsuaj (xws li tawg lossis pitting), qhov zoo tshaj plaws los ua kom cov txheej txheem zoo thiab kev ntseeg siab ntawm cov cuab yeej yog kom tau txais cov tswv yim los yog hloov lub phaj.