Lub npe tag nrho ntawm PVC board yog pedropolycrid. Lub ntsiab tivthaiv yog PVC, uas yog ci xim, corrosion-resistant thiab ruaj. Txij li qee cov khoom siv xws li plasticizer thiab anti-aging tus neeg sawv cev tau ntxiv rau hauv cov txheej txheem tsim khoom los txhim kho nws cov cua sov, toughness thiab ductility, cov khoom feem ntau tsis khaws cia rau zaub mov thiab tshuaj.
Tsim cov yam ntxwv ntawm PVC ntawv
1. Cov tshuaj amorphous nrog qis hygroscopicity thiab dej tsis zoo. Txhawm rau txhim kho cov fluidity thiab tiv thaiv npuas, cov yas tuaj yeem qhuav ua ntej. Cov pwm pouring system yuav tsum tuab thiab luv. Kev ceev faj yuav tsum tau them rau lub hnab hom plua plav tshem tawm accessories. Ntu rooj vag yuav tsum loj yam tsis muaj cov ces kaum tuag. Cov pwm yuav tsum condensed thiab saum npoo yuav tsum yog chrome plated.
2. vim qhov perishability thiab fluidity ntawm PVC board, nws yog qhov zoo dua los siv cov cuab yeej tshwj xeeb thiab pwm. Tag nrho cov khoom yuav tsum tau ntxiv nrog ntau hom thiab ntau npaum li cas ntawm additives raws li xav tau.
3. Nws yog qhov yooj yim heev kom paub qhov txawv. Nws yog qhov yooj yim dua kom paub qhov txawv thaum nws nyob rau hauv kev sib cuag nrog hlau thiab tooj liab ntawm 200 degree, thiab muaj cov roj decay tawm thaum lub sij hawm sib txawv. Qhov kub sib txawv yog me me.
4. thaum siv lub nozzle ntawm cov ntsia hlau txhaj tshuab, lub qhov taub yuav tsum loj kom tsis txhob tuag ces kaum stagnation. Yog tias muaj qhov ntxig, nws yuav tsum tau preheated.
PVC board yog ib hom khoom siv hluavtaws uas nyiam heev, nrov thiab siv dav hauv lub ntiaj teb niaj hnub no. Nws cov ntawv thov thoob ntiaj teb nyob qib No.2 ntawm ntau yam khoom siv hluavtaws. Raws li kev txheeb cais, xyoo 1995 ib leeg, cov khoom tsim tawm hauv Tebchaws Europe yog kwv yees li 51 lab tons, thaum kev noj ntawm nws cov nplais pobzeb xovxwm yog 5.3 lab tons. Nyob rau hauv lub teb chaws Yelemees, cov zis thiab kev siv ntawm PVC yog sib npaug rau 1.4 lab tons. PVC yog tsim thiab siv thoob ntiaj teb ntawm kev loj hlob ntawm 0.04. Nyob rau hauv xyoo tas los no, PVC pawg thawj coj saib tau nce siab nyob rau sab hnub tuaj Asia, ua tsaug rau qhov kev xav tau sai ntawm kev tsim kho vaj tse hauv cov nroog Esxias sab hnub tuaj. Cov yeeb nkab haum "tooj liab alloy seamless yeeb nkab" tau raug ntsuas raws li qib siab poj koob yawm txwv thoob ntiaj teb. PVC yog tsim los ua peb-seem nto zaj duab xis.
Lub ntiajteb txawj nqus tshwj xeeb: 1.38g / cm3, sib sau shrinkage: 0.6-0.015, sib sau kub: 160-190 degree .
Cov no yog cov yam ntxwv ntawm kev tsim cov yam ntxwv ntawm PVC board. Vim nws zoo heev mechanical thiab hluav taws xob khoom. Muaj zog acid thiab alkali tsis kam, tshuaj lom neeg ruaj khov, tab sis tsis tshua muaj taw tes muag. Yog li ntawd, nws yog tsim nyog los ua nyias daim hlau, hlau thiab cable rwb thaiv tsev txheej, seals, thiab lwm yam.
