I-DIN 30670-1kuyinqubo ye-extrusion enezingqimba ezintathu ekhiqiza i-polyethylene (I-3LPE) enamathela phezu kobude noma ngokuvunguza ashiselwe futhiamapayipi ensimbi angenamthungoukuze zivikeleke ekugqwaleni.
Isetshenziswa kakhulu ezinhlelweni zamapayipi agqitshiwe noma angaphansi kwamanzi okuthutha uketshezi noma amagesi.
Qaphela: I-DIN 30670 ihlukaniswe yaba izingxenye ezimbili ohlelweni lwakamuva lwango-2024 kuye ngenqubo yokukhiqiza, okuyi-DIN 30670-1 ikhava ipayipi nezingubo ze-polyethylene ezikhishwe amanxeba, kanye ne-DIN 30670-2 ihlanganisa izinhlobo ezifafazwe ngamalangabi.
Zihlukaniswe zibe izinhlobo ezimbili ngokusho izinga lokushisa design, okuyizintothayipha u-N bese uthayipha u-S.
| Uhlobo | Izinga lokushisa lomklamo (°C) |
| N | -20 ukuze + 60 |
| S | -40 ukuze +80 |
futhiISO 21809-1kuhambisana nekilasi A kanye nekilasi B, ngokulandelana.
Isendlalelo sokuqala se-Epoxy resin, i-epoxy resin powder kumele isetshenziswe.
2nd Adhesive layer, okungaba powder noma extruded camera.
Isendlalelo sesithathu se-Polyethylene, inqubo ye-tube extrusion, noma inqubo yokukhipha ama-winging.
I-Tube Extrusion:
Kule nqubo, impahla ye-polyethylene ikhishwa ngokuqondile efomini eliqhubekayo le-tubular, elibese lifakwa epayipini lensimbi.
Le ndlela ivame ukusetshenziselwa amapayipi amancane ububanzi futhi iqinisekisa ukufana nokuqhubeka kokugqoka.
I-extrusion yomoya:
Kule nqubo, i-polyethylene ikhishwa ngendlela ye-strip bese ilimaza ebusweni bepayipi yensimbi.
Le ndlela ifaneleka kumapayipi anobubanzi obukhulu noma angajwayelekile futhi ivumela ukumbozwa okuguquguqukayo kumapayipi ayinkimbinkimbi noma amakhulu.
Ngokuya ngezidingo ezithile zephrojekthi, isendlalelo esengeziwe sokuvikela ngomshini singangezwa ku-3LPE.
Izinto ezisetshenziswa ngokuvamile zihlanganisaukhonkolo(bheka ISO 21809-5),ipulasitiki eqiniswe nge-fiber yengilazi, noma udaka lukasimende(bheka ku-DN N 30340-1).
Ukuqinisekisa ukuqina okuhle kwe-shear, kuyadingeka ukugoqa noma ukucindezela ubuso be-polyethylene.
Ukwelashwa okunjalo kusiza ukwandisa ukunamathela phakathi kwesendlalelo esengeziwe sokuzivikela kanye ne-polyethylene enamathela.
I-Epoxy Resin Layer Thickness
Ubuncane be-80um.
Ukuqina Kwengqimba Enamathelayo
Ubuncane be-150um.
Ingqikithi Yokujiya Kokunamathela
Ngokuya ngobubanzi obujwayelekile bepayipi lensimbi, ubukhulu besendlalelo sokuvikela ukugqwala buzohluka.
Ngobukhulu obuphelele bongqimba lwe-3LPE, i-DIN 30670-1 ihlukanisa amakilasi amathathu ukuze abhekane nezidingo ezahlukene zokwakha.n,v, kanye s.
Ibanga n: Ezimweni ezijwayelekile, ubukhulu bebanga n ngokuvamile banele.
Ukuze kuhlanganiswe i-polyethylene, ubukhulu be-1 mm busetshenziselwa ngokuyinhloko ukuvikela ukugqwala, kuyilapho ubukhulu obusele busetshenziselwa ukuthuthukisa umthamo wokuthwala umthwalo wemishini wesendlalelo sokuzivikela.
Ibanga v: Uma umthwalo wemishini ukhula (ukuthutha, ukugcinwa, ukubeka, ikhwalithi ethile, izidingo ezikhulayo), ubukhulu obuncane bokumboza kufanele bukhuliswe ngo-0.7 mm, okungukuthi v = n + 0.7 mm.
Ibanga s: Ugqinsi olukhethekile lwe-coating olungaphezu kuka-v kungavunyelwana ngakho ukuze kuhlangatshezwane nezidingo zephrojekthi ethile, futhi ugqinsi olunjalo lwe-coating ngokwezifiso lubhalwe ukuthi Ibanga s.
I-150mm ± 20mm, i-engeli ye-bevel yokujiya kokumboza akufanele ibe ngaphezu kuka-30°.
Izendlalelo ze-epoxy kanye ne-adhesive kufanele zisuswe okungenani ama-80 mm kusukela ekugcineni kwepayipi.Isendlalelo se-epoxy kufanele sishiywe siphume ekugcineni kwepayipi elimbozwe nge-polyethylene ngokungekho ngaphansi kuka-10 mm.
Ukuze unqume ubude, linganisa ukusuka empandeni yepayipi ukuya ekuqaleni komkhawulo osikiwe we-diagonal wesendlalelo sokuvikela ukugqwala.
Amaphutha Ajwayelekile
Ukungapheleli okuncane kanye nokulimala ebusweni bensimbi akufinyelelwanga.
Izimbobo kungqimba olungaphezulu lwe-PE;
Izindawo ezincane ezinokufakwa okungaphelele;
Ukufakwa kanye namabhamuza omoya kungqimba eliphezulu;
Ukunamathela kwezinto zangaphandle;
Umhuzuko ebusweni;
Amadenti amancane enamathela.
Lokhu kulimala okuncane kuvunyelwe ukulungiswa futhi akukho mkhawulo endaweni engalungiswa.
Amaphutha Anzima
Ukulimala kwe-coating kuqondile ebusweni bepayipi lensimbi.
Indawo yokukhubazeka ngakunye okumele ilungiswe akumele idlule ku-10 cm².Inombolo evumelekile yeziphambeko okufanele zilungiswe iyisici esi-1 ngemitha elilodwa lobude bepayipi.Uma kungenjalo, ipayipi kufanele irekhodwe.
ISO 21809-1: Ngokukhethekile ngezingubo zangaphandle ezinezendlalelo ezintathu ze-polyethylene ne-polypropylene (3LPE ne-3LPP) zamapayipi ensimbi asetshenziswa ezinhlelweni zokudlulisa embonini kawoyela negesi.
I-CSA Z245.21: Icacisa i-polyethylene anticorrosion coatings yangaphandle yamapayipi ensimbi asetshenziswa ezinhlelweni zokuthutha.
AWWA C215: Izembatho zangaphandle ze-polyethylene anti-corrosion ezifanele amapayipi okuhambisa amanzi.Nakuba isetshenziswa kakhulu ezinhlelweni zokuthutha amanzi, inokuningi okufanayo ne-DIN 30670 mayelana nezinto zokwakha kanye nobuchwepheshe bokusebenzisa.
Sibheke ngabomvu ukubambisana nawe ukuze sikunikeze ipayipi lensimbi lekhwalithi engcono kakhulu kanye nezixazululo ze-anti-corrosion coating zamaphrojekthi akho.Sicela uzizwe ukhululekile ukuxhumana nathi ukuze uthole imininingwane eyengeziwe yomkhiqizo, siyajabula ukukusiza ukuthi uthole inketho yepayipi yensimbi engcono kakhulu yezidingo zakho!
