Sepheo se seholo sa ho ntlafatsa ts'ebetso ea ho sisinyeha ha lipeipi tsa phepelo ea metsi ke tse peli: e 'ngoe ke ho netefatsa matla a phetiso ea metsi, ho thibela sebaka se seholo sa tahlehelo ea khatello ea metsi, e le ho khona ho fana ka metsi mollong le litsing tsa bohlokoa nakong ea tšohanyetso; Ea bobeli ke ho fokotsa tšenyo ea lipeipi ho thusa ho lokisoa kapele. Ka mantsoe a mang, ha u tobane le likoluoa tsa litšisinyeho tsa lefatše, mokhoa oa phepelo ea metsi o lokela ho ba le maemo a holimo.
Ho thibela ho khaoha ha metsi ho bohlokoa ho boloka tšebetso e tloaelehileng ea phepelo ea metsi. Sistimi ea liphaephe tsa PE4710 (e lekanang le PE100) e na le monyetla o tlase oa ho phatloha le ho lutla ha phaepe efe kapa efe ea metsi, e thusang ho fihlela sepheo sohle se kaholimo.
Phatlalatso ea maqhubu le ho senyeha ha mobu ka ho sa feleng ke lisosa tse ka sehloohong tsa tšenyo ea lipeipi tse patiloeng. Ka lebaka la ho ba teng ha matla a axial le khatello ea kelello ea ho khumama, ho sisinyeha ha fatše ho lebisa ho axial le ho kobeha ka har'a liphaephe. Lisebelisoa tse nang le boima bo phahameng (khatello e phahameng e lumelletsoeng) ka kakaretso li na le bokhoni bo fokolang ba ho holofatsa. Thepa ea ductile e emeloang ke polyethylene (PE) (khatello e tlase e lumelletsoeng) e na le bokhoni bo botle ba deformation le ho tiea.
Bokhoni ba ho sisinyeha ha tsamaiso ea lipeipi bo bonahala ka ho ikamahanya le maemo a holim'a metsi. Ho sisinyeha ha litšisinyeho tsa lefatše kapa ho phatlalatsoa ha leqhubu la seismic ho ka baka tsitsipano fatše hoo e ka senyang esita le lipeipi tse kotsing ka ho fetisisa. Ho petsoha ha mobu, ho hoholeha ha mobu, ho fetoha ha mobu ho seretse le ho fella ka sebaka sa bolulo le/kapa ho hasana ka mahlakoreng, ho kokobela fatše le ho phahamisoa ho ka baka khatello e kholoanyane ea mobu, e leng se bakang tšenyo libakeng tse khōlō tsa liphaephe tse epetsoeng. Lethathamo la B-1 le thathamisa lintlha tsa mathata tse bonoang lefatšeng ka bophara ka lebaka la ho senyeha ho sa feleng ha mobu.
Tafole B-1 E shebiloe khatello ea fatše ka lebaka la ho senyeha ha mobu ho sa feleng
Mefuta e hlokahalang ea khatello ea fatše bakeng sa lipeipi e pakeng tsa 0.05% le 4.5%. Tlalehong ea 2008 ea Setsi sa Lipatlisiso sa Motlakase sa Amerika, litekanyo tsa matla a khatello ea thepa ea PE4710 li fanoe. Ka mocheso oa 50 ° F (10 ° C), karolelano ea lihlahisoa tsa peipi ea PE4710 ke 9.9%, athe khatello e tloaelehileng ea ho qetela ke 206%. Pipe ea polyethylene e tla tsamaea ka lebaka la ho sisinyeha ha fatše, ho e-na le ho hanyetsa meroalo e ka etsang hore liphaephe tse thata kapa tse brittle li robehe. Liketsahalong tse ngata tsa litšisinyeho tsa lefatše, peipi e cheselitsoeng (welded) e phahameng ea polyethylene (HDPE) e tla kobeha, empa e ke ke ea robeha kapa ea arohana (khokahanyo e sa tiisitsoeng), kahoo ho boloka phepelo ea metsi e tloaelehileng. Hoa lokela ho hlokomeloa hore likhokahano tsohle tsa liphaephe tsa PE le mehaho e meng, lisebelisoa tse tlatselletsang le likarolo li ka 'na tsa e-ba tlas'a meroalo e phahameng ea phapang. Khokahano ea likarolo tsena e lokela ho reroa ka hloko le ho etsoa ho fokotsa kotsi ea ho phatloha.
Sekhahla sa kotulo ea peipi ea PE4710 e batla e lekana habeli ho feta ea khatello ea fatše e bakoang ke boholo bo bonoang, 'me mofuta oa ho qetela oa PE4710 o feta makhetlo a 40 ho feta oa khatello ea lefatše. Ts'ebetso e fumanoeng ka lipalo tsa theoretical e lumellana le ts'ebeliso ea pipeline ea polyethylene ts'isinyehong ea lefatše. Mohala oa phepelo ea metsi oa HDPE o cheselitsoeng o sebelitse hantle tšisinyehong ea lefatše. Letlapa la B-2 le fana ka maikutlo a sa fellang a litšisinyeho tsa lefatše tse fetileng Japane (Omuro le Himono, 2018).
Lethathamo la B-2 Lintlha tse bonoang nakong ea litšisinyeho tsa lefatše tse fetileng Japane
Ts'ebetso ea ho sisinyeha ha lipeipi e lokela ho hlahlojoa, ho kenyeletsoa ho tiea, matla a axial strain, radius e lumelletsoeng ea ho kobeha, matla a manonyeletso, botsitso le boemo bo teng ba lipeipi. Palo e kholo ea boiphihlelo ba tšisinyeho ea lefatše e bonts'a hore liphaephe tsa mantlha tsa phepelo ea metsi a HDPE ho latela litekanyetso tsa letoto la liphaephe tsa ASTM li ka boloka ts'ebetso e tloaelehileng tlasa maemo a mangata a tšisinyeho ea lefatše. Ha litlhoko tsa ts'ebetso ea ho sisinyeha ha phala e kholo ea phepelo ea metsi li phahame, tšebeliso ea liphaephe tse cheselitsoeng tsa HDPE li lokela ho nahanoa, hobane ts'ebetso ea tšisinyeho ea liphaephe tsa HDPE e tšepahala haholoanyane, 'me e ka ikamahanya le mefuta e fapaneng ea mobu e hlahisoang ke litšisinyeho tsa lefatše le ho boloka ts'ebetso e tloaelehileng.
CHANGRENGis a share industry and trade integrated company, established in 2005 which focused on the production of HDPE Pipes, Fittings & Valves, PPR Pipes, Fittings & Valves, PP compression fittings & Valves, and sale of Plastic Pipe Welding machines, Pipe Tools, Pipe Repair Clamp and so on. If you need more details, please contact us +86-28-84319855, chuangrong@cdchuangrong.com, www.cdchuangrong.com
Nako ea poso: Mar-06-2025
