Ukuzivumelanisa nezimo
Ukuguquguquka kwepayipi le-polyethylene kuvumela ukuthi ligobeke ngaphezulu, ngaphansi, naseduze kwezithiyo kanye nokwenza izinguquko zokuphakama kanye nokuqondisa.Kwezinye izimo, ukuguquguquka kwepayipi kunganciphisa kakhulu ukusetshenziswa kwezinto zokufaka futhi kunciphise kakhulu izindleko zokufaka.
Ipayipi le-CHUANGRONG PE lingagotshwa libe yirediyasi encane phakathi kobubanzi obuphindwe izikhathi ezingu-20 kuya kwezingu-40 bepayipi, okuncike kakhulu ku-SDR yepayipi elithile.
Ithebula : Okungenani kuvunyelwe beirediyasi yepayipi le-HDPE ku-23℃
| I-SDR yepayipi | I-Mininumalowable bend radfus,Rmin |
| 6 7.4 | I-Rmin >20×den I-Rmin>20×den |
| 9 | I-Rmin>20×dn* |
| 11 | I-Rmin>25×dn* |
| 13.6 Rmin>25×dn* | |
| 17 | I-Rmin>27×dn* |
| 21 | I-Rmin>28×dn* |
| 26 | I-Rmin >35×dn* |
| 33 | I-Rmin>40×dn* |
*dn: ububanzi obujwayelekile bangaphandle, ngamamilimitha
Isisindo Esilula
Ukulindela Ukuphila
Ubuningi bezinto ze-PE buyi-1/7 kuphela yensimbi. Isisindo sepayipi le-PE sincane kakhulu kunesensimbi ecijile ekhonkrithi, noma ipayipi lensimbi. Uhlelo lwamapayipi e-PE kulula ukuluphatha nokuyifaka, futhi ukwehla kwamandla omuntu nezidingo zemishini kungabangela ukonga kokufakwa.
Isisekelo somklamo we-hydrostatic wepayipi le-CHUANGRONG sisekelwe kudatha ebanzi yokuhlola i-hydrostatic ehlolwe ngezindlela ezijwayelekile zemboni. Ukuziphatha kwesikhathi eside kokumelana kwengcindezi yangaphakathi okuhlinzekwa yijika lamandla e-hydrostatic ngokusekelwe ku-EN ISO 15494 standard (bheka isigaba X). Imikhawulo yokusetshenziswa kwamapayipi kanye nokufakwa, njengoba kuboniswe kumdwebo wokushisa kwengcindezi, ingatholakala kulezi zijika, ezibonisa ukuthi ipayipi linobude bempilo obungaba yiminyaka engama-50 lapho lithutha amanzi ku-20℃. Izimo zemvelo zangaphakathi nezangaphandle zingashintsha impilo elindelekile noma zishintshe isisekelo somklamo esinconyiwe sesicelo esithile.
Ukumelana Nesimo Sezulu
Izakhiwo Zokushisa
Ukuguguleka kwepulasitiki kwenzeka ngenqubo yokuwohloka kwendawo, noma i-oxidation, ngenxa yomphumela ohlangene wemisebe ye-ultra violet, izinga lokushisa elikhuphukile, kanye nomswakama lapho amapayipi egcinwa ezindaweni eziveziwe. Ipayipi elimnyama le-polyethlence, eliqukethe i-carbon black ehlukaniswe kahle engu-2 kuya ku-2.5%, lingagcinwa ngokuphephile ngaphandle ezindaweni eziningi zezulu iminyaka eminingi ngaphandle kokulimala okuvela ekuvezweni kwe-ultra-violet. I-carbon black iyisengezo esisodwa esisebenza kahle kakhulu sokuthuthukisa izici ze-weathering zezinto zepulasitiki. Eminye imibala efana nomhlophe, oluhlaza okwesibhakabhaka, ophuzi noma i-lilac ayinayo ukuzinza okufanayo nezinhlelo ezinombala omnyama futhi isikhathi sokudalulwa kufanele silinganiselwe onyakeni owodwa ukuze kugcinwe kahle izakhiwo. Ngalezi zinhlelo zemibala, izendlalelo ze-oxidation zangaphandle zikhula ngesivinini esisheshayo kunalezo eziku-carbon black.
Amapayipi e-PE azinzile. Lawa mapayipi anombala awanconywa ukusetshenziswa ngaphezu komhlabathi.
Amapayipi e-polyethylene angasetshenziswa emazingeni okushisa asukela ku-50°C kuya ku-+60°C. Emazingeni okushisa aphezulu, amandla okubamba kanye nokuqina kwezinto kuyancishiswa. Ngakho-ke, sicela ubheke umdwebo wokushisa nokucindezela. Kumazinga okushisa angaphansi kuka-O°C, i-Cit kumele iqinisekiswe ukuthi i-medium ayiqandisi, ukuze kugwenywe umonakalo ohlelweni lwamapayipi ngenxa yalokho.
Njengazo zonke i-thermoplastics, i-PE ikhombisa ukwanda okuphezulu kokushisa kunensimbi. I-PE yethu ine-coefficient yokwanda kokushisa okuqondile okungu-0.15 kuya ku-0.20mm/m K, okuphindwe ka-1.5 kune-eg. PVC. Njengoba lokhu kucatshangelwa ngesikhathi sokuhlela ukufakwa akufanele kube nezinkinga kulokhu.
Ukushisa kwe-thermal kungu-0.38 W/m K. Ngenxa yezakhiwo zokushisa ezibangelwa yilezi, uhlelo lwepayipi le-PE lungcono kakhulu uma luqhathaniswa nohlelo olwenziwe ngezinto ezifana nethusi.
Ukuziphatha Kokushisa
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I-polyethylene ingeyamapulasitiki avuthayo. Inkomba ye-oxygen ifinyelela ku-17%. (Izinto ezishayo ezingaphansi kuka-21% we-oxygen emoyeni zibhekwa njengezivuthayo).
Amaconsi e-PE aqhubeka nokusha ngaphandle komusi ngemva kokususa ilangabi. Ngokuyisisekelo, izinto ezinobuthi zikhishwa yizo zonke izinqubo zokushisa. I-Carbon monoxide ngokuvamile ingumkhiqizo wokushisa oyingozi kakhulu kubantu. Lapho i-PE isha, ngokuyinhloko i-carbon dioxide, i-carbon monoxide namanzi kwakheka.
Izinga lokushisa lokuzishisa lingu-350℃.
Izinto ezifanelekile zokulwa nomlilo amanzi, igwebu, i-carbon dioxide noma i-powder.
Ukumelana Nezinto Eziphilayo
Amapayipi e-PE angase alimale ngenxa yemithombo yezinto eziphilayo njengezintuthwane noma amagundane. Ukumelana nokuhlaselwa kunqunywa ubulukhuni be-PE esetshenzisiwe, i-geometry yezindawo ze-PE, kanye nezimo zokufakwa. Emapayipini amancane anobubanzi, izingxenye zodonga ezincane zingase zilimale ngenxa yezintuthwane ezimweni ezimbi kakhulu. Kodwa-ke umonakalo ovame ukubangelwa ukuhlaselwa kwezintuthwane ku-PE kamuva utholakale ukuthi ubangelwa eminye imithombo yomonakalo wemishini.
Izinhlelo zamapayipi e-PE ngokuvamile azithinteki yizinto eziphilayo kokubili ezweni, kanye nasezisetshenzisweni zasolwandle, futhi isimo se-paraffinic se-PE pipe sufaces sivimbela ukwakheka kwemigodi yasolwandle esebenza.
Izakhiwo Zikagesi
Ngenxa yokumuncwa kwamanzi okuphansi kwe-PE, izakhiwo zayo zikagesi azithinteki kakhulu ngokuxhumana kwamanzi okuqhubekayo. Njengoba i-PE iyi-polymer ye-hydrocarbon engeyona i-polar, iyisivikelo esivelele. Nokho, lezi zakhiwo zingaba zimbi kakhulu ngenxa yokungcola, imiphumela yemidiya yokuxova noma isimo sezulu. Ukumelana kwevolumu ethile kungu->1017 Ωcm; amandla e-dielectric angama-220 kV/mm.
Ngenxa yokuthuthukiswa okungenzeka kwama-electrostic charges, kunconywa ukuqaphela lapho usebenzisa i-PE ezinhlotsheni lapho ingozi yomlilo noma ukuqhuma itholakala khona.
CHUANGRONGiyinkampani ehlanganisiwe embonini yamasheya kanye nokuhweba, eyasungulwa ngo-2005 eyayigxile ekukhiqizweni kwamapayipi e-HDPE, ama-Fittings & Valve, amapayipi e-PPR, ama-Fittings & Valve, ama-PP compression fittings & Valve, kanye nokuthengiswa kwemishini yokushisela amapayipi epulasitiki, amathuluzi amapayipi, i-Pipe Repair Clamp njalo njalo.
Uma udinga imininingwane eyengeziwe, sicela usithinte +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Isikhathi sokuthunyelwe: Novemba-14-2024
