Taw qhia rau Dichloromethane Resistance Tester

Taw qhia rau Dichloromethane Resistance Tester (Ua raws li ISO9852 Standard Requirements)

Dichloromethane Resistance Testerplays lub luag haujlwm tseem ceeb hauv kev tsim cov kav dej PVC, uas tau siv dav hauv kev tsim kho thiab kev lag luam tsheb thauj mus los vim lawv lub cev zoo thiab tshuaj lom neeg. Cov cuab yeej no yog tsim los ua kom tau raws li qhov yuav tsum tau muaj ntawm ISO9852 tus qauv, uas qhia txog cov qauv kev sim rau kev txiav txim siab ntawm cov kav dej yas rau dichloromethane.

Dichloromethane Resistance Tester Txoj Cai:
Ib daim ntawm PVC-U yeeb nkab, ntawm qhov ntev ntev, chamfered ntawm ib kawg mus rau lub kaum sab xis-nyob ntawm nws thickness, yog immersed rau 30min nyob rau hauv dichloromethane, ntawm qhov kub thiab txias teev los ntawm tus qauv xa mus, kom paub tseeb tias PVC-U tsis yog. txuas ntawm qhov kub thiab txias. Rau cov laj thawj kev nyab xeeb, thaj tsam ntawm dichloromethane yog khaws cia rau qhov tsawg kawg nkaus thiab cov dichloromethane tau npog los ntawm cov dej sib sib zog nqus kom txo cov evaporation. Tom qab immersion nyob rau hauv dichloromethane, lub xeem daim yog tuav nyob rau hauv cov dej txheej kom nws "drip" ua ntej zaum kawg ziab thiab tshuaj xyuas.

Cov khoom siv dichloromethane impregnation muaj xws li stainless hlau immersion tank, lub twj tso kua mis circulating twj tso kua mis, lub rhaub, lub ntsuas kub, thiab kev ruaj ntseg interlock system. Lub tank yog thawj zaug ntim nrog dichloromethane, thiab cov yeeb nkab PVC yog ces muab tso rau hauv lub tank siv lub thawv tshwj xeeb. Lub twj tso kua mis circulating yog tig rau agitate cov kuab tshuaj thiab txhawb txawm extraction ntawm polymer. Lub tshuab cua sov yog siv los tswj qhov kub thiab txias ntawm dichloromethane, uas yog qhov tseem ceeb hauv kev ua kom cov txiaj ntsig zoo dua qub.

Kev siv cov khoom siv dichloromethane impregnation yog qhov tsim nyog tshwj xeeb rau cov kav dej PVC, uas raug rau qhov hnyav ib puag ncig thiab kub kub hauv lawv lub neej ua haujlwm. Kev ua tus cwj pwm zoo ntawm PVC polymer yog qhov tseem ceeb hauv kev kwv yees nws tus cwj pwm mus sij hawm ntev, nrog rau nws cov kev tiv thaiv rau tshuaj tua kab mob, degradation, thiab qaug zog tsis ua hauj lwm. ISO9852 tus qauv qhia qhov tsawg kawg nkaus uas yuav tsum tau ua rau dichloromethane impregnation kuaj ntawm cov kav dej yas, thiab ua raws li tus qauv no kom ntseeg tau tias cov tuam txhab tsim cov kav dej PVC zoo uas ua tau raws li lub hom phiaj.

Hauv kev xaus, cov khoom siv dichloromethane impregnation yog cov cuab yeej tseem ceeb hauv kev tswj xyuas cov kav dej PVC, thiab nws ua rau cov tuam txhab xa khoom tuaj yeem ua tau raws li qhov xav tau ntawm cov txheej txheem niaj hnub no. Cov cuab yeej tshwj xeeb tso cai rau cov txiaj ntsig zoo sib xws, rov tsim dua tshiab, uas txhim kho kev ntseeg tau thiab kev nyab xeeb ntawm cov kav dej PVC hauv lawv daim ntawv thov. Kev ua raws li ISO9852 tus qauv yog qhov tseem ceeb hauv kev txheeb xyuas qhov tsim nyog ntawm cov kav dej PVC rau lawv cov kev npaj siv, thiab nws qhia tau hais tias kev cog lus ntawm cov tuam txhab ua tau zoo thiab kev tsim kho tshiab.