Lub degrease qhov chaw? Degreaser rau cov tsheb

Los ntawm lub sij hawm rau lub sij hawm muaj ib tug yuav tsum tau siv tus sauv sib greasy nqaij ntawd rau ntawm qhov chaw ntawm lub tsheb cev. Nyob rau hauv lub nroog tej yam kev mob nws yuav ua tau tsuas yog nyob rau hauv lub tsheb ntxuav. Txawm li cas los, feem ntau ntawm degreasing yog yuav tsum tau thaum nrag lub tsheb. Ua li cas nws ua li cas? Los ntawm zoo xws li cov txheej txheem qhia zoo coupling nrog ib lub cev nto pleev xim rau. Yuav ua li cas thiab yuav ua li cas degrease, koj yuav tsum txiav txim siab ua ntej pib ua hauj lwm. Nws yog tsim nyog sau cia hais tias lub ib txwm txhais tau tias rau tej lub hom phiaj tsis yog ib txwm tsim. Nyob rau hauv tas li ntawd, tus nto kev kho mob compositions nws yog tsim nyog los noj mus rau hauv tus account ib co ntawm cov nuances. Yog li ntawd yog dab tsi degrease qhov chaw?

Qhov no muaj rau

, Nws yog tsim nyog yuav nrhiav tau tawm yog vim li cas qhov no yog tsim nyog ua ntej koj teb cov lus nug, yog dab tsi degrease qhov chaw ua ntej painting. Feem ntau, cov hlau yog kho nrog xws li tebchaw tsuas yog rau cov txij nkawm uas ib txwm adhesion ntawm cov khoom los ntawm qhov uas lub cev thiab refinishing. Nyob rau hauv tej zaum nws yog tsim nyog. Nyob rau hauv tus neeg mob qhov twg lub tsheb yog kiag li repainted, lub cev yuav tsum tau them nrog ib tug txheej ntawm tshwj xeeb primer. Yuav ua kom zoo adhesion, nws tseem yuav tsum tau degreasing.

Adhesion, nyob rau hauv qhov tseeb, - ib tug clutch ntawm ib cov ntaub ntawv uas nrog lwm tus. Qhov no tag nrho cov tshwm sim nyob rau hauv cov molecular theem. Yog hais tias lub hlau los yog ntawm lub primer thiab cov xim muaj hlau txheej yuav tsum muaj ib tug txheej ntawm roj, lawv adhesion yog tsis txaus. Qhov no tej zaum nws thiaj li muaj feem xyuam rau cov tsos ntawm cov tsheb. Los ntawm tej kev co xim yuav maj poob tawm.

Yuav ua li cas worsens lub adhesion

Degreaser rau cov tsheb tsis tau tsuas yog tshem tawm cov roj. Av, ntau yam organic, oily tshuaj ntawm tej yam ntuj tso keeb kwm, thiab thiaj li on - tag nrho cov no thiaj li muaj cov adhesion ntawm cov ntaub ntawv nyob rau molecular theem. Nyob rau hauv tas li ntawd, cov adhesion muaj feem xyuam rau cov oxide nyias zaj duab xis. Nws zoo li ib tug me ntsis xeb zaj duab xis nyob rau qhov chaw ntawm lub cev. Qhov no zaj duab xis kuj pom zoo rau tshem tawm. Yog hais tias koj tshem tawm cov quav hniav kiag li tsis, nws yog tsim nyog los tig nws mus rau hauv ib tug ruaj khov tshuaj compound uas tsis es hlau adhesion thiab xim ntawm cov molecular theem.

Lub degrease qhov chaw ua ntej gluing los yog painting

Feem ntau cov feem ntau, tus "dawb ntsuj plig" yog siv rau cov kev kho mob ntawm lub cev. Txawm li cas los, muaj ntau yam yuam kev nws nrog cov ib txwm txhais tau tias ntawm kerosene los yog diesel roj, raws li lawv muaj yuav luag tib yam tsis hnov tsw. Qhov txawv ntawm cov tshuaj yog heev me me. Ob tebchaw yog ib tug sib tov ntawm carbohydrates. Ua zoo xws li cov kua los ntawm lub distillation fractions.

Ib txhia neeg ua tim khawv qhia tau tias cov "dawb ntsuj plig" - ib tug me me daim ntawv ntawm kerosene. Nws yog ib nqi sau cia hais tias lub chaw yog zoo yaj rog, asphalt, roj hmab thaj ua rau thaj thiab mastic. Tsis zoo li kerosene, "Dawb Ntsuj Plig" yooj yim ntxuav tawm nrog dej dawb lub tsheb. Ob tebchaw yog haum rau degreasing chaw. Cov "Dawb Ntsuj Plig" - ib lub teeb compound uas yog cov vaporized thiab cov seem ntawm cov txhais tau tias tsis ua mob rau tus txheej tom qab painting.

Kuv yuav tsum tau siv ib tug kerosene

Degreasing - ib tug yooj yim txoj kev uas yuav muaj peev xwm ua tau nyob tom tsev. Qhov loj tshaj plaws - xaiv lub cuab tam txoj. Ib txhia kev chaw ntxuav siv kerosene vim hais tias lawv siv tshwj xeeb cov khoom lis lub cev. Qhov no tso cai rau koj mus kiag li tshem tawm cov tshuaj yeeb dej caw ntawm tus nto, tawm hauv nws tsw. Yog hais tias degreasing ntawm lub tsheb yog nqa tawm nyob rau hauv lub chav nres tsheb, rau cov hom phiaj yog pom zoo kom siv "dawb ntsuj plig" los yog cov nyiaj raws li nyob rau hauv nws. Nws yog qhov zoo tshaj plaws mus yuav lub tebchaw uas tau raug hydrotreated. Thaum no tus nqi, koj yuav tsum tau them nyiaj tshwj xeeb xim, tshwj xeeb tshaj yog yog hais tias tus yam khoom uas yog ua domestically.

Yuav ua li cas siv yog tsis pom zoo

Yuav ua li cas yuav degrease tus nto, thiab hais tias peb yuav tsum tsis txhob siv? Muaj ntau yam tsis pom zoo kom siv ntawm diesel roj, roj a thiab diesel roj. Ntawm cov hoob kawm, lawv yog cov zoo degreased. Txawm li cas los, xws tshuaj yuav ua mob.

Ceev faj yuav tsum tau siv lub xov tooj kuab tshuaj xws №645, №646 thiab thiaj li nyob, thiab acetone. Tej ntaub ntawv no yog nkag yaj tsis tau tsuas yog organic, av thiab roj, tab sis kuj coatings. Kev kho mob ntawm lub cev yog tso cai thiab acetone kuab tshuaj cia li ua ntej muab tub lim.

Yog hais tias tsis muaj tshwj xeeb txhais tau tias, nws yog tej zaum yuav siv tib yam vinegar tov, tov nrog ib tug ob peb tee ntawm xab npum rau tableware.

Uas yog siv nyob rau hauv lub Hoobkas

Lub Hoobkas thov sodium carbonate tshuaj (35-50 g / L) los yog sodium hydroxide tshuaj (90-150 g / l). Qhov no degreaser rau cov tsheb yuav tsum tau siv nrog huab ceev faj. Ua ntej yuav pib ua hauj lwm, nws yog pom zoo kom looj hnab looj tes raws li sodium nws tus kheej yog heev corrosive. Cov tshuaj yuav tsis tau tsuas yog tshem tawm cov roj los ntawm lub cev nto, tab sis kuj noj mus rau hauv daim tawv nqaij nyob rau hauv lub ob txhais tes.

Nyob rau hauv tas li ntawd, alkaline daws teeb meem yog tsis muaj peev xwm kiag li tshem tawm cov tsuas ntawm cov roj thiab roj nyeem tas. Tej compositions muaj ib tug uas tsis muaj detergency. Siv alkali pom zoo tsuas yog tom qab cov cua kub rau 90 ° C. Koj muaj peev xwm tsis coj nws mus rau ib tug boil. Nws yuav tsum tau muab sau tseg uas acidic ntsiab yog zoo muab tshem tawm los ntawm lub oxide zaj duab xis, tab sis tsis zoo rinsed rog. Yog li ntawd dab tsi zoo dua rau degrease qhov chaw ntawm lub cev?

trichlorethylene

Nyob rau hauv tej rooj plaub, rau qhov kev huv huv ntawm lub cev yog siv trichlorethylene los yog tshuaj uas muaj nws nyob rau hauv lub lineup. Txawm li cas los, cov tshuaj mas siv muaj drawbacks. Lawv yuav tsis tau mus thov kom txhuas. Nyob rau hauv zus tau tej cov trichlorethylene yog siv tsuas yog rau cov degreasing ntawm ferrous hlau.

Thaum kev sib cuag nrog lub txhuas ntawm lub substance tej zaum yuav ua ib qho kev tawg. Nws kuj tsis pom zoo kom sib tov dej nrog trichlorethylene, txij thaum lub nplaum pib tsim thiab tawv ncauj loj. Nyob rau hauv Feem ntau, lub yam khoom uas yog tsis siv nyob rau hauv cov ntshiab daim ntawv tiam sis nyob rau hauv daim ntawv ntawm cov emulsions. Lub degrease tus nto, nws yog tsim nyog los mus txiav txim nyob rau hauv ua ntej mus rau tsis ntxiv puas lub tsheb lub cev.

Ntxuav nyob rau hauv ob peb ua sawv

Yog hais tias koj tsis paub yuav ua li cas thiab zoo li cas rau degrease tus nto, nws yog ua tau rau xa mus rau cov kws tshwj xeeb. Nyob rau hauv lub Hoobkas, tu yog nqa tawm nyob rau hauv ob peb ua sawv. Thaum zoo li no tshwm sim nyob rau hauv thawj defatting kauj ruam. Yuav pib nrog rau qhov chaw ntawm lub cev yog kho nrog "dawb ntsuj plig". Yog hais tias cov hlau yog nyob rau hauv ib txhia qhov chaw ntaus los ntawm xeb, nws yog pom zoo kom ntxuav nws nrog ib tug sib tov ntawm dej cawv thiab phosphoric acid. Yog li ntawd nws yog tsim nyog los soj ntsuam cov feem pua ntawm cov tshuaj:

1. Phosphoric acid + dej 1 mus rau 5. Cov tshuaj yuav tsum yog los ntawm 65 mus rau 75%.
2. Isopropyl cawv - los ntawm 13 mus 18%.
3. Ethyl cawv - los ntawm 10 mus rau 14%.
4. Lub emulsifier OP-7 - 0.5%.
5. Nitrobenzene - 0.1%.

Yuav kom ua xws li kev daws teeb meem nyob rau hauv tsev yog ib qhov nyuaj. Txawm li cas los, niaj hnub siv tshuab tso cai ntau manufacturers yuav tsim ib tug tej yam hauv chav kawm ntawv ntawm cov tshuaj ntxuav. Lawv tau yooj yim yuav thov nyob rau hauv tsev. Pawg no tej hu ua antisilikony. Muab kev pom zoo rau lawv siv tsis yooj yim sua, raws li txhua yam nws muaj nws cov kua zog. Nws yuav tsum tau muab sau tseg hais tias muaj ntau antisilikony yog ib tug sib tov ntawm ob peb organic solvents uas muaj ib tug tsis tshua muaj toxicity. Lawv yuav siv tsis tau ntshai ntawm kev tsim txom rau kev kho mob. Txawm li cas los, lub cev nto ua ntej painting yog pom zoo tshem tawm lawv remnants.

tswv yim pom zoo

Tam sim no uas koj paub tias dab tsi mus degrease qhov chaw. Ua ntej yuav tshwj xeeb cov nyiaj yuav tsum coj mus rau hauv tus account ib co ntawm cov nuances. Txawm muaj kev siv uas tsis yog-tej formulations yog pom zoo kom looj hnab looj tes thiab ib tug daim npog qhov ncauj masking.

Mus nqa tawm degreasing cov txheej txheem tsim nyog los siv ob phuam da dej: ib tug yog yuav tsum tau rau daim ntawv thov ntawm cov muaj pes tsawg leeg, thiab lub thib ob - mus tshem tawm cov seem.

Kev kho mob yuav tsum tau ua tom qab sanding thiab cia li ua ntej painting. Qhov ua los ntawm txhuas, nws yog tsim nyog los them tshwj xeeb mloog. Tsis yog txhua txhua yam muaj kev ruaj ntseg rau cov hlau. Thov tus number case muaj pes tsawg leeg ncaj qha rau ntawm lub degreased nto yog tsis pom zoo, txij li thaum lub cev muaj kom sov rau chav tsev kub.