Ndi zinthu zitatu ziti zomwe zimagwiritsidwa ntchito kwambiri ndi pulasitiki

Onetsetsani kuti mwanena zitatu, ziyenera kukhala: PPR, PVC, PE

1. Mapaipi apulasitiki omwe amagwiritsidwa ntchito kwambiri ndi awa: PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (polyethylene yosagwira kutentha), PE (polyethylene) \HDPE (yolimbikitsidwa kwambiri polyethylene) ethylene), ndi zina.

Chachiwiri, kukula kwa mapaipi apulasitiki nthawi zambiri amafotokozedwa m'mimba mwake.Monga chubu la PPR: De63

3. Moyo wautumiki waMF MPIRA VALVE X9011zimatsimikiziridwa molingana ndi GB/T18252-2000 "Pulasitiki mapaipi dongosolo - Kutsimikiza kwa nthawi yaitali hydrostatic mphamvu mapaipi thermoplastic ndi extrapolation".Iyi ndi njira yowonjezerera ndikulosera zamphamvu zanthawi yayitali za zida za thermoplastic kapena zolemba kuchokera ku zotsatira za mayeso amphamvu a hydrostatic a mapaipi.*Ambiri omwe ali pamwambawa amagwiritsa ntchito njira iyi kuwerengera, pansi pa kutentha kwa 20 ℃, chitoliro cha pulasitiki nthawi zambiri chimakhala ndi zaka 50.

Chachinayi, zida zopangira mapaipi apulasitiki ndi makina opangira jakisoni, omwe amapangidwa kukhala mapaipi ndi makina opangira jakisoni.

5. Pali njira ziwiri zolumikizira mapaipi apulasitiki: kusungunuka kotentha ndi glue.

6. Miyezo ya mapaipi apulasitiki makamaka ikuphatikizapo:

1. PPR (polypropylene): GB/T18742.1, GB/T18742.2, GB/T18742.3

2. PVC (polyvinyl kolorayidi): GB/T10002.1-2006, GB/T10002.2-2003

3. PE (polyethylene): GB15558, GB/T13663

4. HDPE (Polyethylene Yokwezeka Kwambiri): GB/T19472.2-2004

Mipope ya pulasitiki makamaka imaphatikizapo PPR (polypropylene), PVC (polyvinyl chloride), PB (polybutene), PE-RT (polyethylene yosagwira kutentha), PE (polyethylene), HDPE (polyethylene yowonjezera yowonjezera), ndi zina zotero. polypropylene (PP), polyvinyl chloride (PVC), polyethylene (PE) ndi ma polima ena.

Chitoliro cha pulasitiki ndi mawu ambiri a mapaipi opangidwa ndi zinthu zapulasitiki.Mapaipi apulasitiki ali ndi mawonekedwe a kulemera kopepuka, ukhondo ndi chitetezo, kukana kwamadzi pang'ono, kupulumutsa mphamvu, kupulumutsa zitsulo, kukonza malo okhala, moyo wautali wautumiki, chitetezo ndi kusavuta, ndi zina zambiri, ndipo amakondedwa ndi gulu laumisiri wamapaipi.M'zaka zapitazi za 10, motsogozedwa ndi chitukuko cha chuma cha dziko langa, mapaipi apulasitiki a dziko langa adakumana ndi chitukuko chofulumira pansi pa chitukuko chachikulu cha zipangizo zomangira mankhwala.Mu 2010, dziko linanena bungwe mipope pulasitiki kuposa matani 8 miliyoni, amene Guangdong, Zhejiang ndi Shandong mlandu 42% ya linanena bungwe.Mapaipi apulasitiki ali ndi ubwino wambiri kuposa mipope yachitsulo yachikhalidwe ndi mipope ya konkire m'madera ambiri, choncho akhala akugwiritsidwa ntchito kwambiri m'madera ambiri.