1.Vim li cas kev siv cov tshuaj alkaline tsis pom zoo?
Tshuaj Corrosion (Saponification Reaction):
Cov resins hauv coatings (tshwj xeeb tshaj yog polyesters) muaj ester bonds. Alkaline cov kev daws teeb meem (xws li NaOH, Na₂CO₃, thiab lwm yam) yuav hnov mob nrog cov ester bonds nyob rau hauv ib qho saponification cov tshuaj tiv thaiv, ua rau cov resin molecular chains tawg.
Qhov tshwm sim: Cov txheej yuav ploj mus tas li nws cov gloss, chalk, soften, thiab poob adhesion. Qhov kev puas tsuaj no yuav tsis tshwm sim tam sim ntawd tom qab ntxuav, tab sis nws yuav ua rau kom muaj kev laus thiab tev ntawm txheej.
Kev puas tsuaj rau saum npoo:
Txawm tias cov tshuaj alkali qis qis yuav tsis ua rau pom kev puas tsuaj, tab sis lawv tseem tuaj yeem ua rau lub smoothness thiab ntom ntawm txheej txheej, cuam tshuam rau nws tus kheej - ntxuav thiab stain kuj.
Kev puas tsuaj irreversible:
Thaum cov txheej txheej yog corroded los ntawm alkali, nws tsis tuaj yeem kho. Qhov kev kho tsuas yog rov ua dua, uas yog qhov ua tsis tau zoo hauv thaj teb.
2.Yuav ua li cas xaiv tus neeg saib xyuas zoo?
Cov Khoom Siv Tshwj Xeeb Tshwj Xeeb: Muaj cov tshuaj ntxuav tsis tu ncua tshwj xeeb tsim rau cov xim steel panels / hlau kab hlau rhuav phab ntsa ntawm lub khw. Lawv tus nqi pH yog nruab nrab (pH=6-8), thiab lawv tau tsim tshwj xeeb los tshem tawm cov roj stains uas tsis ua rau cov txheej txheem puas tsuaj.
General thiab Safe Options:
Nruab nrab lossis me ntsis alkaline (pH Tsawg dua lossis sib npaug li 9) cov khoom siv ua lag luam.
Diluted tsev neeg lub tshuab ntxuav tais diav (nruab nrab).
Isopropyl cawv (IPA) los yog cov kuab tshuaj tshwj xeeb- raws li cov roj stain tshem tawm: Cov no muaj txiaj ntsig zoo ntawm kev tshem tawm cov roj organic stains thiab evaporate sai, tab sis yuav tsum tau sim ntawm qhov me me, zoo- qhov cua qhov chaw kom ntseeg tau tias lawv tsis cuam tshuam rau cov txheej txheem gloss.
3.Yuav ua li cas ua tus txheej txheem ntxuav?
Kev tshem tawm plua plav ua ntej: Yaug cov plua plav saum npoo av nrog txhuam txhuam los yog dej huv.
Npaj cov tshuaj ntxuav: Dilute nruj me ntsis raws li tus neeg saib xyuas cov lus qhia.
So nrog ib daim ntaub mos muag: Siv daim txhuam cev mos, tsis yog- ntaub npuag, lossis mos- txhuam txhuam txhuam txhuam hauv cov tshuaj ntxuav kom so qhov chaw. Tsis txhob siv cov ntaub plaub, cov txhuam tawv tawv, lossis cov abrasives.
Yaug nrog dej huv: Yaug kom huv nrog dej kom ntau tam sim kom tsis txhob ntxuav cov khoom seem.
Cua qhuav: So qhuav nrog ib daim ntaub huv, mos los yog cia cua qhuav.
4.Dab tsi yog cov lus pom zoo rau kev tuav cov xwm txheej tshwj xeeb?
Kuaj ua ntej daim ntawv thov: Ua ntej siv cov tshuaj ntxuav tes lossis cov txheej txheem, ua ib qho me me - qhov chaw sim ntawm thaj chaw tsis pom tseeb (xws li lub ces kaum) ntawm cov yob coated los soj ntsuam cov kev tsis zoo xws li poob ntawm gloss, discoloration, los yog muaj zog stickiness.
Yog tias tus neeg saib xyuas muaj zog dua yuav tsum tau siv:
nruj me ntsis tswj lub concentration, kub, thiab kev sib cuag lub sij hawm. Siv qhov qis -concentration, chav tsev-kub alkaline tov thiab xyuas kom meej tias lub sij hawm tiv tauj tsis pub dhau ob peb feeb, tom qab ntawd yaug tam sim ntawd.
Txoj kev no ua rau muaj kev pheej hmoo siab heev thiab tsuas yog pom zoo rau kev kho mob ntawm cov tawv nqaij tawv, thaj chaw stains los ntawm cov kws tshaj lij tom qab kev ntsuam xyuas tag nrho ntawm qhov tshwm sim. Nws yog kiag li tsis haum rau loj - thaj chaw tu.
5.Cov lus qhia tseem ceeb yog dab tsi?
Txhawm rau tiv thaiv tus nqi thiab lub neej ntawm koj cov xim -coated yob, ib txwm tshem tawm cov tshuaj ntxuav alkaline ntawm koj cov npe xaiv. Kev nqis peev hauv nruab nrab, tshwj xeeb ntxuav thiab ua raws li cov txheej txheem ntxuav yog tib txoj kev nyab xeeb thiab txhim khu kev qha. Rau txhua qhov tsis paub tseeb, qhov me me - qhov ntsuas thaj tsam yog ib kauj ruam tseem ceeb kom tsis txhob muaj kev puas tsuaj loj.