① PVC yeeb nkab yog dab tsi?
PVC luv luv rau Polyvinylchlorid, feem ntau yog tsim los ntawm polyvinyl chloride, thiab lwm yam khoom siv ntxiv los txhim kho nws cov cua sov, toughness, thiab ductility. Sab saum toj txheej ntawm zaj duab xis saum npoo yog xim, lub ntsiab tseem ceeb nyob rau hauv nruab nrab yog polyvinyl chloride, thiab hauv qab txheej yog rov qab-txheej nplaum.
Nws yog ib qho ntawm cov nyiam tshaj plaws niaj hnub no, nrov thiab dav siv cov khoom siv hluavtaws hauv ntiaj teb. Nws txoj kev siv thoob ntiaj teb yog thib ob ntawm ntau yam khoom siv hluavtaws. Kev txheeb cais qhia tau hais tias nyob rau hauv 1995 ib leeg, zus tau tej cov PVC nyob rau hauv cov teb chaws Europe yog hais txog 5 lab tons, thiab nws noj yog 5.3 lab tons. Nyob rau hauv lub teb chaws Yelemees, kev tsim thiab kev siv ntawm PVC nruab nrab yog 1.4 lab tons.
② Cov kav dej PVC tuaj yeem tiv taus ntau npaum li cas?
Muaj ob qho tib si PVC kav thiab hloov tau yooj yim PVC kav, thiab lawv cov cua sov kuj txawv. Rigid PVC kav tuaj yeem tiv taus qhov kub ntawm 7 degrees, thaum cov kav dej PVC hloov tau tuaj yeem tiv taus qhov kub ntawm 55 degrees. Cov txheej txheem ib txwm qhia qhov kev siv kub tsis tshaj 45 degrees. Exing qhov ntsuas kub no yuav ua rau qhov kev ua tau zoo ntawm cov yeeb nkab kom txo qis, thiab qhov kub thiab txias, qhov ntau dua yuav tawg. Yog tias siv rau ib lub sijhawm ntawm qhov kub thiab txias, nws tuaj yeem yooj yim ua rau kev laus thiab kev puas tsuaj ntawm cov yeeb nkab, txo nws txoj sia.
Yog tias siv rau lub sijhawm ntev ntawm qhov kub thiab txias, nws tuaj yeem yooj yim ua rau kev laus thiab kev puas tsuaj ntawm cov yeeb nkab lub cev, txo nws txoj sia. Yog tias qhov kub siab tshaj 90 degree, nws yuav pib decompose me ntsis, tso pa roj thiab yaj hauv dej, uas tuaj yeem tsim kev puas tsuaj rau tib neeg lub cev., nws yog qhov zoo tshaj plaws kom nkag siab qhov ntsuas kub ntawm cov yeeb nkab dej ua ntej siv los tiv thaiv qhov nruab nrab kub. los ntawm kev siab dhau thiab ua rau cov khoom siv yeeb nkab puas tsuaj
③ Muaj pes tsawg metres yog ib lub yeeb nkab PVC?
Tus qauv ntev ntawm cov kav dej PVC feem ntau yog 4 meters, nrog rau txhua pob khoom muaj 100 meters.
Raws li cov khoom siv sib txuas, qhov ntev ntawm cov kav dej PVC yog qhov sib xws hauv kev ua lag luam. Feem ntau cov kav dej PVC ntawm kev ua lag luam yog 4 meters ntev rau ib thooj, nrog rau txhua pob khoom muaj 100 meters ntev. Qhov ntev ntawm tus qauv no haum rau ntau yam kev thov, suav nrog tab sis tsis txwv rau kev tso dej, dej, thiab xaim hluav taws xob. Txawm li cas los xij, tseem muaj qee cov tuam txhab tsim cov kav dej PVC uas ntev txog 3 meters, nrog rau txhua pob khoom muaj txog 99 meters. Cov kav dej PVC ntawm qhov ntev sib txawv tuaj yeem xaiv raws li cov kev cai tshwj xeeb kom tau raws li qhov xav tau ntawm cov haujlwm sib txawv.
Thaum xaiv cov kav dej PVC, ntxiv rau kev xav txog qhov ntev, cov yeeb nkab txoj kab uas hla yog qhov tseem ceeb. Feem ntau hais lus, cov kav dej loj tau pom zoo kom siv ib txoj kab uas hla ib-inch, cov kav dej xa dej tuaj yeem siv 6-inch txoj kab uas hla, thiab ceg kav dej tuaj yeem siv 4-inch diameter. Cov kev xaiv zoo li no yog ua raws li cov dej sib txawv thiab cov kev xav tau siab, kom ntseeg tau tias kev ua haujlwm zoo thiab kev nyab xeeb ntawm cov kav dej.
④ Zhongmai PVC yeeb nkab raw cov ntaub ntawv thiab cov qauv:
Pvc yeeb nkab formula:
Cov khoom siv raw:
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