1. Homopoly PP yog tsim los ntawm kev sib xyaw thiab granulating nrog rau qee yam ntawm cov khoom siv tawv tawv. Cov khoom siv raw no hu ua pp-h.
2. Thaiv copolymerization ntawm PP thiab PE yog siv. Cov khoom siv raw no hu ua ppb.
3. Siv cov txheej txheem roj qib siab copolymerization, PE yog polymerized randomly thiab tusyees nyob rau hauv molecular saw ntawm PP. Cov khoom siv raw no hu ua PPR.
Lub taub hau ntawm extruder siv los tsim PPR cov yeeb nkab yas yuav tsum siv cov qauv hauv computer kom raug xam cov kev faib siab thiab yaj tus nqi ntawm txhua ntu, thiaj li ua kom nws muaj qhov zoo qis - kub plasticizing muaj peev xwm. Ib qho yooj yim ib leeg ntsia hlau extruder tsis tuaj yeem siv los tsim PPR yeeb nkab.
Tam sim no, 70-80 feem pua ntawm cov raj PPR hauv khw tsis yog cov raj PPR tiag. Txhawm rau pab cov neeg siv ua ntej txheeb xyuas qhov tseeb thiab tsis tseeb PPR cov kav dej thiab fittings los ntawm cov tsos thiab txhais tes.
Xa mus rau cov txheej txheem kev txheeb xyuas cov hauv qab no:
(1) Product Name: the product name of PPR shall be "polypropylene pipe for cold and hot water" or "PPR pipe for cold and hot water". All products with superfine particle modified polypropylene pipe (PPR) or PPR cold water pipe, PPR hot water pipe, PPE pipe, etc. are pseudo PPR pipes.
(2) Lub tsev kuaj khoom yog ib chav uas tsis muaj kev tshaj lij, thiab cov khoom xeem tsis sib haum nrog cov ntsiab lus teev tseg hauv PPR cov qauv kav dej. Cov ntawv pov thawj uas muab los ntawm lub tuam tsev pom zoo los yog lub tuam tsev txhawb nqa khoom, Lub Tsev Haujlwm uas tsis paub PPR cov qauv khoom lossis tsis muaj cov qauv PPR yog PPR cuav.
(3) Qhov ceev ntawm pseudo PPR yog me ntsis siab dua PPR.
(4) PPR raj yog dawb matte los yog matte ntawm lwm yam xim, thiab pseudo PPR raj muaj ci ntsa iab lossis ci xim.
(5) PPR raj yog opaque kiag li, thiab pseudo PPR raj yog pob tshab me ntsis los yog pob tshab.
(6) PPR raj zoo li mos thiab pseudo PPR raj zoo nkaus li du.
(7) Lub suab tsaws ntawm PPR raj yog npub, thiab lub suab tsaws ntawm pseudo PPR raj yog nkig.
