Liphaephe tsa PEli se li le 'marakeng,' me e se e le sehlahisoa se tsebahalang haholo, haholo-holo ba indastering.Ha liphaephe tsa PE li boleloa, hang-hang li nahana ka ho hanyetsa ho apara, ho hanyetsa khatello, ho hanyetsa kutu le bophelo bo bolelele ba tšebeletso.Ho na le lipeipi tse ngata tsa PE.Mefuta, lisebelisoa tse tala tsa PE le tsona li arotsoe ka mefuta e mengata, lihlahisoa tsa liphaephe tsa PE tse hlahisoang le tsona li arotsoe ka mefuta e mengata, tlhaloso e pharaletseng ea kajeno, phapang ke efe pakeng tsa litekanyetso tsa pipe ea PE80 le pipe ea PE100?
Lisebelisoa tsa PE ke polyethylene, e leng mefuta e fapaneng ea thepa ea polasetiki.Ke thepa ea polymer e entsoeng ka polyethylene.
Ha e le hantle e arotsoe ka lihlopha tse peli: polyethylene e tlaase ea polyethylene LDPE (matla a tlaase);boleng bo phahameng ba polyethylene HDPE.Lisebelisoa tsa PE li arotsoe ka limaraka tse hlano ho latela maemo a machaba a kopaneng: kereiti ea PE32, kereiti ea PE40, kereiti ea PE63, kereiti ea PE80 le kereiti ea PE100.
Tlhahiso ea lipeipi tsa PE bakeng sa liphaephe tsa phepelo ea metsi ke polyethylene e matla haholo (HDPE), 'me limaraka tsa eona ke PE80 le PE100 (ho latela khutsufatso ea Matla a Bonyane a Hlokehang, MRS).MRS oa PE80 o fihla ho 8MPa;MRS ea PE100 e fihla ho 10MPa.MRS e bua ka hoop tensile stress strength ea pipe (boleng bo baloang bo lekoa ho latela maemo a machaba).
PE80 (8.00～9.99Mpa) ke masterbatch e nang le antimony trioxide content ea 80% holim'a polyethylene substrate, e ka sebelisoang haholo-holo ho lahlela le ho etsa lifilimi ka nako e le 'ngoe.Ke granular e phallang ntle le lerōle masterbatch e bolokehileng tlhahisong ho feta phofo ea setso, e bonolo ho tseba tekanyo ea litekanyetso, hape e nkoa e le masterbatch ea sepheo se akaretsang, e phallang mahala ka sebōpeho sa granular.
PE100 (10.00～11.19Mpa) ke palo ea limaraka tse fumanoeng ka ho pota-pota bonyane matla a hlokahalang (MRS) a thepa e tala ea polyethylene.Ho latela GB/T18252, matla a hydrostatic a thepa e tsamaellanang le 20 ℃, lilemo tse 50 le monyetla o boletsoeng esale pele oa 97.5% o ikemiselitse ho latela GB/T18252.σLPL, fetolela MRS, 'me u atise MRS ka 10 ho fumana palo ea likarolo tsa thepa.
Haeba liphaephe le lisebelisoa tse hlahisoang ho tsoa lihlopheng tse fapaneng tsa lihlahisoa tse tala tsa polyethylene li lokela ho hokahanngoa, manonyeletso a tla beoa tekong ea hydraulic.Ka kakaretso, PE63, PE80, PE100 metsoako e nang le tekanyo ea ho qhibiliha ha metsi (MFR) (190 ° C / 5kg) pakeng tsa 0.2g / 10min le 1.3g / 10min e lokela ho nkoa e le e kopantsoeng 'me e ka kopanngoa.Lisebelisoa tse tala tse kantle ho mofuta ona li hloka ho hlahlojoa ho tseba.
1. Peipi ea polyethylene ea PE100 ke eng?
Nts'etsopele ea lisebelisoa tsa phala ea polyethylene e amoheloa e arotsoe ka meloko e meraro, e leng mekhahlelo e meraro ea nts'etsopele:
Moloko oa pele, polyethylene e tlaase-tlaase le "mofuta oa pele" oa polyethylene e phahameng, e na le ts'ebetso e fokolang 'me e lekana le lisebelisoa tsa hona joale tsa phala ea polyethylene ka tlase ho PE63.
Moloko oa bobeli, o hlahileng lilemong tsa bo-1960, ke thepa ea phala ea polyethylene e nang le boholo bo bohareng e nang le matla a nako e telele a hydrostatic le khanyetso ea ho phatloha, eo hona joale e bitsoang PE80 grade polyethylene pipe material.
Moloko oa boraro, o hlahileng lilemong tsa bo-1980, o bitsoa moloko oa boraro oa polyethylene pipe e khethehileng ea thepa PE100.PE100 e bolela hore ho 20°C, phala ea polyethylene e ntse e ka boloka bonyane ba matla a hlokahalang MRS ea 10MPa ka mor'a lilemo tse 50, 'me e na le khanyetso e babatsehang ea khōlo e potlakileng ea crack.
2. Melemo ea sehlooho ea PE100 polyethylene pipe ke efe?
PE100 e na le thepa eohle e babatsehang ea polyethylene, 'me thepa ea eona ea mechine e ntlafatsoa haholo, e leng se etsang hore PE100 e be le melemo e mengata e khethehileng' me e sebelisoa masimong a mangata.
2.1 Ho hanyetsa khatello e matla
Hobane PE100 resin e na le bonyane ba matla a hlokahalang a 10MPa, e matla haholo ho feta polyethylene tse ling, 'me khase le metsi li ka tsamaisoa tlas'a khatello e phahameng;
2.2 Lerako le lesesaane
Tlas'a khatello e tloaelehileng ea ts'ebetso, lerako la phala le entsoeng ka thepa ea PE100 le ka fokotsoa haholo.Bakeng sa liphaephe tsa metsi tse nang le bophara bo boholo, tšebeliso ea liphaephe tse nang le marako a tšesaane li ka boloka thepa le ho atolosa sebaka sa sebaka sa sefapano sa liphaephe, kahoo ho eketsa matla a lipalangoang tsa liphaephe.Haeba matla a ho fetisa a ntse a le teng, ho eketseha ha karolo ea sefapano ho lebisa ho fokotseha ha lebelo la phallo, e le hore ho tsamaisa ho ka etsoa ka pompo e nyenyane ea matla, empa litšenyehelo li bolokiloe.
2.3 Ntho e phahameng ea tšireletso
Haeba phala e le boholo kapa khatello ea ts'ebetso e hlalositsoe, ntlha ea polokeho eo PE100 e ka netefatsang e tiisitsoe letotong la kajeno la liphaephe tsa polyethylene tse fapaneng.
2.4 Ho thatafala ho hoholo
Lisebelisoa tsa PE100 li na le modulus ea elastic ea 1250MPa, e phahameng ho feta 950MPa ea resin e tloaelehileng ea HDPE, e etsang hore pipe ea PE100 e be le ho satalla ha selikalikoe se phahameng.
3. Mechanical thepa ea PE100 resin
3.1 Matla a sa Feleng
Matla a ho mamella a ne a khethoa ke ho lekola khatello ea mela ka mocheso o fapaneng (20°C, 40°C, 60°C le 80°C).Ho 20 ℃, resin ea PE100 e ka boloka matla a 10MPa kamora lilemo tse 50, (PE80 ke 8.0MPa).
3.2 Ho hanyetsa khatello e ntle ea khatello ea maikutlo
PE100 polyethylene pipe e khethehileng e na le khanyetso e ntle ea khatello ea maikutlo, e liehang ho ba teng ha khatello ea maikutlo (> lihora tse 10000), 'me e ka lieha ho feta lilemo tse 100 tlas'a boemo ba 20 ℃.
3.3 Khanyetso e kholo ea ho hola ha crack ka potlako
Tlhokahalo ea bokhoni ba ho hanela kholo e potlakileng ea mapetsong e fokotsa tšebeliso ea liphaephe tse tloaelehileng tsa polyethylene: bakeng sa khase, moeli oa khatello ke 0.4MPa, le bakeng sa ho fana ka metsi, ke 1.0MPa.Ka lebaka la bokhoni bo tsotehang ba PE100 ho hanela kholo e potlakileng ea mapetsong, moeli oa khatello ho marang-rang a khase ea tlhaho o eketsehile ho ea ho 1.0MPa (1.2MPa e sebelisitsoe Russia le 1.6MPa marang-rang a phetisetso ea metsi).Ka lentsoe, ts'ebeliso ea lisebelisoa tsa PE100 polyethylene liphaepheng li tla etsa bonnete ba hore litekanyetso tsa ts'ebetso ea liphaephe tsa phepelo ea metsi tsa pe100 ka har'a marang-rang a liphaephe li bolokehile, li na le moruo ebile li na le bophelo bo bolelele ba ts'ebeletso.
Tlhaloso: http://www.chinapipe.net/baike/knowledge/15022.html
Nako ea poso: Nov-04-2022
