Raws li ib qho ntawm cov khoom lag luam loj tshaj plaws hauv Shanm lub xeev, Suav, peb tau ua tiav cov khoom siv raw tshuaj thiab cov neeg tseem ceeb hauv kev lag luam rau ntau yam kev lag luam. Ntawm cov tshuaj uas tseem ceeb peb muaj cov methylene chloride, propylene glycol (pg), thiab dimethylformamide (DMF). Cov tebchaw no ua si ib lub luag haujlwm tseem ceeb hauv ntau cov txheej txheem raug tsim, ua rau lawv tsis tseem ceeb rau peb cov neeg tau txais kev pab.
METHYLENE CLORIDE, paub rau nws cov khoom siv cov kuab tshuaj, yog siv dav hauv cov xim stripping, degrasases, thiab raws li kev pab cuam hauv kev tsim cov kws tshuaj. Nws cov txiaj ntsig nyob rau hauv discolving ntau yam tshuaj ua rau nws xaiv xaiv tau ntau hauv ntau cov ntawv thov kev lag luam. Ntawm qhov tod tes, propylene glycol (pg) yog ib qho kev sib txuas ntxiv uas ua rau cov neeg nyiam, cov kuab tshuaj, thiab tshuaj pleev ib ce, thiab kws tshuaj pleev ib ce. Nws cov kev tsis muaj kuab thiab muaj peev xwm khaws cov dej noo ua rau nws muaj cov khoom xyaw tseem ceeb hauv ntau daim formation. Dimethylformamide (axf agoric kuab, yog qhov tseem ceeb hauv kev tsim hluav taws xob, thiab kws tshuaj, muab cov khoom siv hluav taws xob zoo rau cov organic thiab inorganic sib xyaw.
Nrog peb tus kheej cov khoom lag luam thiab cov khoom siv tau ntse, peb paub meej tias peb cov neeg tau txais cov tshuaj no ntawm cov nqi lag luam uas tsis muaj kev sib txawv ntawm kev ua tau zoo. Peb txoj kev cog lus rau kev txaus siab thiab cov neeg siv khoom txaus siab tau tsim peb los ua tus neeg ntseeg tau txoj kev ntseeg tshuaj. Raws li peb txuas ntxiv nthuav peb cov txiaj ntsig, peb nyob twj ywm txhawb nqa peb cov neeg tau txais cov ntaub ntawv raw lawv yuav tsum ua kom muaj txiaj ntsig thiab vam meej hauv lawv cov kev lag luam. Txawm hais tias koj xav tau methylene chloride, pg, DMF, lossis lwm yam tshuaj lom neeg nruab nrab, peb nyob ntawm no kom tau raws li qhov koj xav tau zoo thiab ua tau zoo.
Lub Sijhawm Post: Feb-21-2025