Qiniseka ukuthi ukhuluma ezintathu, kufanele kube: PPR, PVC, PE
1. Amapayipi epulasitiki asetshenziswa ngokujwayelekile yile: PPR (Polypropylene), PVC (Polyvinyl Chloride), PB (Polybutene), PE-RT polyethylene), PE (Polyethylene), njll.
Okwesibili, usayizi wamapayipi epulasitiki ngokuvamile kuvezwa ngokuya ngobubanzi obungaphandle. Njenge-PPR TUBE: DE63
3. Impilo yenkonzo yeMf ibhola valve x9011Kunqunywa ngokuya nge-GB / T18252-2000 "Uhlelo lokuphawula lwamapayipi - Ukunqunywa kwamandla we-hyprostatic omude wamapayipi we-thermoplastic". Le yindlela yokufaka ngokwezibalo kanye nokubikezela izakhiwo zamandla esikhathi eside zezinto zokwenziwa kwe-thermoplastic noma izindatshana ezivela emiphumeleni yokuhlolwa kwamandla okusebenza kwamapayipi. * Iningi lalokhu okungenhla lisebenzisa le ndlela ukubala, ngaphansi kwesimo sokushisa esingu-20 ℃, ipayipi leplastiki ngokuvamile linokuphila kweminyaka engama-50.
Okwesine, imishini yokubumba yamapayipi epulasitiki ngumshini wokuhlanganisa umjovo, okubunjwe kumapayipi ngomshini wokubumba umjovo.
5. Kunezindlela ezimbili zokuxhuma amapayipi epulasitiki: kuncibilike ukuncibilika kanye ne-glue.
6. Izindinganiso zamapayipi epulasitiki zifaka ikakhulukazi:
1. I-PPR (Polypropylene): GB / T18742.1, GB / T18742.2, GB / GB / T18742.3
2. I-PVC (Polyvinyl Chloride): GB / T10002.1-2006, GB / T10002.2-2003
3. I-PE (polyethylene): GB15558, GB / T13663
4. I-HDPE (ithuthukiswe i-polyethylene ephezulu): GB / T19472.2-2004
Amapayipi epulasitiki ikakhulukazi afaka i-PPR (PolyPropylene), i-PVC (polyvinyl chloride), i-PB (polybutene), i-PE-RT polyethylene), i-PE (Polyethylene), i-HDPE (I-High-density polyethylene), njll. I-Polypropylene (PP), i-polyvinyl chloride (PVC), i-polyethylene (pe) namanye ama-polymers.
Ipayipi lepulasitiki liyigama elijwayelekile lamapayipi enziwe ngezinto zepulasitiki. Amapayipi epulasitiki anezici zesisindo esikhanyayo, ukuthuthwa kwendle kanye nokuphepha, ukumelana kwamanzi okuncane, ukulondolozwa kwamandla, ukuthuthukisa insimbi, ukuthuthukiswa kwemvelo okuhlala, ukuphepha kanye nokusebenziseka kalula, njll., Futhi kuthandwa yiPipeline Engineering Community. Eminyakeni eyi-10 eyedlule, eqhutshwa yintuthuko yezwe lami laseMacroeconomic, amapayipi epulasitiki ami ahlangabezana nokuthuthuka okusheshayo ngaphansi kwesizinda sokuthuthuka okukhulu kwezinto zokwakha amakhemikhali. Ngo-2010, umphumela kazwelonke wamapayipi epulasitiki wedlula amathani ayizigidi eziyi-8, okwakukhona kulokhu, uZhejiang noShandong babalelwa ama-42% okuphuma. Amapayipi epulasitiki anezinzuzo eziningi ngaphezu kwamapayipi ensimbi endabuko namapayipi akhonkolo emikhakheni eminingi, ngakho-ke asetshenziswe kabanzi ezindaweni eziningi.
Isikhathi Seposi: Jan-24-2022