Yuav ua li cas xaiv cov tshuaj ntxuav kom nyab xeeb thiab siv tau rau PTFE cua sov phaj?

Qee zaum, cov neeg ua haujlwm saib xyuas siv cov kuab tshuaj muaj zog lossis hnyav hnyav kom tshem tawm cov khoom siv tawv tawv ntawm PTFE cua sov phaj. Hauv ob peb hnub lossis ob peb lub lis piam, lub phaj qhia cov cim ntawm qhov chaw hawb pob, cov kab nrib pleb zoo, tsis tshua muaj cua sov, lossis teeb meem hluav taws xob uas tsis tau kwv yees. Kev tu hnyav yog etched fluoropolymer, ua rau nws bulge, los yog tso tseg cov khoom seem uas ua rau kev taug qab yooj yim dua. Qhov kev puas tsuaj no, uas yuav tsum tau zam, qhia tau tias muaj kev pheej hmoo ntau: ntxuav cov khoom uas tsis tau kuaj xyuas kev sib raug zoo tuaj yeem ua rau qhov chaw uas lawv xav rov qab los. Txhawm rau ntxuav kom zoo, koj yuav tsum tau siv cov tshuaj ntxuav kom zoo rau ob qho tib si ntawm kev tso nyiaj thiab cov tshuaj PTFE nws tus kheej.

Nrhiav kom paub seb hom kev tso nyiaj li cas Nws yog thawj kauj ruam hauv kev tu kom zoo yog txhawm rau txheeb xyuas qhov tso nyiaj kom raug. Kev saib sai yuav qhia koj ntau: dub lossis xim av ci - ntawm cov khaubncaws sab nraud povtseg txhais tau tias carbonised organic residues; dawb los yog grey crusty tsub zuj zuj txhais tau hais tias ntxhia nplai; cov yeeb yaj kiab hazy lossis discoloration txhais tau hais tias cov tshuaj stains lossis cov txheej polymerised nyias. Cov kev ntsuam xyuas yooj yim solubility ua rau cov kev xaiv tsawg dua. Muab ib tee dej deionised rau ntawm qhov tso nyiaj. Yog hais tias nws softens los yog dissolves, tej zaum nws yog dej -soluble inorganic nplai. Yog tias ib qho poob ntawm isopropyl cawv ua ntub dej thiab tshem tawm qee yam ntawm cov khoom, cov organic residues feem ntau yog. Cov kev soj ntsuam luv luv no pab koj xaiv lub tshuab ntxuav kom zoo thiab ua kom koj tsis txhob siv cov tshuaj ntxuav tes uas hnyav dhau.

Kev Nyab Xeeb Kev Nyab Xeeb Cov Khoom Siv rau Cov Kab Ntau Lawm PTFE tuaj yeem ua ntau yam tshuaj me me, txawm hais tias nws tseem rhiab rau cov oxidisers muaj zog, muaj zog alkalis, thiab ntau cov kuab tshuaj halogenated. Xaiv cov neeg sawv cev uas tau pom tias ua haujlwm zoo ua ke los ntawm cov chaw tsim khoom lossis los ntawm kev sim lawv hauv ib cheeb tsam me.

Rau feem ntau cov av, cov roj teeb, thiab cov ntiv tes, cov tshuaj ntxuav tes me me nrog pH ntawm 7 txog 9, zoo li chav kuaj- qib tsis yog- ionic lossis anionic surfactants, ua tau zoo. Thaum koj siv cov txhuam mos los yog cov ntaub so kom siv cov tshuaj diluted ntawm 40-60 degree, lawv tshem tawm cov av txhua hnub yam tsis muaj kev puas tsuaj rau saum npoo.

Isopropyl cawv los yog ethanol cov ntsiab lus uas yog 50-70% muaj zog ua hauj lwm zoo ntawm cov organic residues xws li roj, nplaum, los yog carbonised films. Ib qho 50 feem pua ​​​​ isopropyl cawv kua ua haujlwm zoo rau ntau cov organic residues thiab tawm tsis muaj qhov seem thaum nws evaporates. Rau cov tawv tawv ntau ci- ntawm cov organics, citrus-raws li los yog terpene cleansers ua rau fluoropolymers uas yog cua sov (50-70 degree) ua hauj lwm zoo dua thiab tseem muaj kev nyab xeeb.

Kev kho mob me me yog xav tau rau cov pob zeb hauv av. Cov kev daws teeb meem ntawm citric acid (5-10%), acetic acid, los yog phosphoric acid ntawm 40-50℃ua haujlwm zoo kom yaj calcium, magnesium, thiab silicate deposits. Tsis txhob siv hydrochloric, sulfuric, los yog nitric acid tshwj tsis yog kev kuaj pom tias lawv yuav tsis ua rau qhov chaw. Ntev - lub sij hawm raug yuav ua rau etching txawm nyob rau hauv tsawg concentrations.

Maj mam txo cov tshuaj los yog tshwj xeeb fluoropolymer restorers ua hauj lwm zoo ntawm cov tshuaj stains los yog lub teeb oxidation. Nyob deb ntawm cov hauv paus muaj zog lossis cov tshuaj txhuam hniav uas yuav ua rau cov khoom tawg lossis tawg.

Tsis txhob muaj zog oxidising acids (xws li concentrated nitric, perchloric, thiab chromic), concentrated alkalis (xws li sodium hydroxide saum 5%), thiab chlorinated cov kuab tshuaj (xws li methylene chloride thiab trichloroethylene). Cov tshuaj no txaus ntshai heev. Cov no tuaj yeem pib saws tes, o, lossis tawm hauv qab cov khoom seem uas tuaj yeem ua rau corrosion lossis taug qab. Kev siv cov kuab tshuaj chlorinated yog ib qho yuam kev vim lawv yuav tso cov seem uas ua rau corrosion tom qab. Nco ntsoov xyuas kom pom tias lub tshuab nqus tsev puas muaj kev nyab xeeb siv nrog PTFE los ntawm kev sim nws ntawm thaj chaw me me lossis saib ntawm tus neeg muag khoom cov ntaub ntawv.

Kev yaug kom huv si thiab tshem tawm cov av uas tseem tshuav Ib lub voj voog tu tag nrho yuav tsum suav nrog kev yaug tag nrho. Txhawm rau tshem tawm tag nrho cov seem ntawm cov tshuaj ntxuav, siv ntau cov dej deionised lossis distilled. Cov tshuaj detergent, kua qaub, los yog cov kuab tshuaj yuav ua rau tej yam yuav kis tau tus kab mob, ua kom cov degradation, los yog ua rau cov kab hluav taws xob. Txhawm rau kom muaj qhov huv, qhuav qhuav npaj rau siv, koj yuav tsum tau yaug nws ntau zaus thiab cia nws cua qhuav los yog ziab hauv qhov kub qis - qhov cub kub (80-100℃). Tshem tawm cov seem uas tsis muaj teeb meem xws li cov dej me me, corrosion ntawm cov hlau nyob ze, lossis teeb meem nrog thermal contact.

Kev ntsuam xyuas kev sib raug zoo nrog cov tshuaj ntxuav tu, tshuaj ntxuav me me, tshem tawm cov khoom seem, thiab ntxuav kom huv huv huv thiab ua tiav thaum lub tshuab nqus tsev ntxhua khaub ncaws sib tw ob qho tib si tso nyiaj thiab cov khoom siv. Kev txheeb xyuas kom raug tshem tawm qhov tsis xav tau kev tawm tsam thiab ua kom txhua yam ploj mus. Thaum cov deposits nyuaj heev kom tshem tawm los yog thaum compatibility tseem nyob rau hauv cov huab cua, cov txheej txheem ntxuav lub cev zoo li mos scraping nrog cov cuab yeej yas, ultrasonic da dej nyob rau hauv nruab nrab cov ntsiab lus, los yog tawm blasting nrog tshaj abrasives tej zaum yuav ua hauj lwm zoo dua li cov tshuaj. Cov txheej txheem no txo ​​qhov kev pheej hmoo ntawm fluoropolymer nto thiab ua kom lub phaj zoo kom nws tuaj yeem siv dua. Txoj hauv kev zoo tshaj plaws los khaws PTFE cua sov daim hlau los ntawm kev tsim thiab ua kom lawv nyob ntev dua hauv kev lag luam yog los so lawv maj mam tom qab txhua qhov kev siv.