PPR cov kav dej

Piv nrog rau cov kav hlau hlau, PPR cov kav dej muaj qhov zoo ntawm kev txhim kho yooj yim, zoo dua thermal rwb thaiv tsev, thiab tiv thaiv corrosion. Nws yog cov khoom noj khoom haus zoo thiab ib puag ncig zoo rau cov dej haus thiab tseem yog cov khoom siv dej loj hauv khw. PPR kav dej feem ntau muaj nyob rau hauv cov xim hauv qab no, dawb, Grey, ntsuab thiab curry xim, vim li cas thiaj li muaj qhov sib txawv no feem ntau tshwm sim los ntawm cov xim sib txawv masterbatches ntxiv.

Ntxiv rau cov yam ntxwv ntawm cov kav dej yas dav dav xws li lub teeb yuag, kev tiv thaiv corrosion, tsis muaj qhov ntsuas, thiab lub neej ua haujlwm ntev, PP-R kav kuj muaj cov yam ntxwv tseem ceeb hauv qab no:

1 Non-toxic thiab huv si.
Cov khoom siv raw khoom molecules ntawm PP-R tsuas yog cov pa roj carbon thiab hydrogen, thiab tsis muaj teeb meem thiab tshuaj lom. Nws yog tu cev thiab txhim khu kev qha. Nws tsis yog tsuas yog siv rau cov kav dej txias thiab dej kub xwb, tab sis kuj yog rau cov kav dej ntshiab huv.

2 Kev txuag hluav taws xob thiab txuag hluav taws xob.
Lub thermal conductivity ntawm PP-R yeeb nkab yog 0.21w / mk, uas tsuas yog 1/200 ntawm cov yeeb nkab steel.

3 Kev ua haujlwm kub zoo dua.
Vicat softening point ntawm PP-R yeeb nkab yog 131.5 ℃. Qhov siab tshaj plaws ua haujlwm kub tuaj yeem ncav cuag 95 ℃, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm cov dej kub hauv lub tsev dej thiab cov kav dej.

4 Lub neej ua haujlwm ntev.
Nyob rau hauv cov xwm txheej ntawm kev ua haujlwm kub ntawm 70 ℃ thiab ua haujlwm siab (PN) ntawm 1.0MPa, lub neej kev pab cuam ntawm PP-R yeeb nkab tuaj yeem ncav cuag ntau tshaj 50 xyoo (muab cov khoom siv yeeb nkab yuav tsum yog S3.2 thiab S2.5 series los yog ntau); Nyob rau hauv ib txwm kub (20 ℃) ​​Lub neej kev pab cuam muaj peev xwm ncav cuag ntau tshaj 100 xyoo.

5 Ib qho yooj yim installation thiab txhim khu kev qha kev twb kev txuas.
PP-R muaj kev vuam zoo. Cov kav dej thiab fittings tuaj yeem txuas nrog kub yaj thiab electrofusion. Lub installation yog yooj yim thiab cov pob qij txha yog txhim khu kev qha. Lub zog ntawm qhov sib koom ua ke ntau dua li lub zog ntawm cov yeeb nkab nws tus kheej.

6 Cov ntaub ntawv tuaj yeem siv dua.
PP-R pov tseg yog ntxuav, tawg, thiab rov siv dua rau kev tsim cov kav dej thiab fittings. Tus nqi ntawm cov khoom siv rov ua dua tsis pub dhau 10% ntawm tag nrho cov nyiaj thiab tsis cuam tshuam rau cov khoom zoo.

kev teeb tsa