Chithunzi cha 30670-1ndi njira zitatu zosanjikiza zomwe zimapanga polyethylene (Mtengo wa 3LPE) ❖ kuyanika padziko longitudinally kapena spiral welded ndimapaipi opanda zitsulokuwateteza ku dzimbiri.
Amagwiritsidwa ntchito kwambiri m'mapaipi okwiriridwa kapena kumizidwa pansi pamayendedwe amadzimadzi kapena mpweya.
Zindikirani: DIN 30670 yagawidwa m'magawo awiri mu kope laposachedwa la 2024 kutengera njira yopangira, yomwe ndi DIN 30670-1 imakwirira payipi ndi zokutira za polyethylene, ndi DIN 30670-2 imakwirira mitundu yopopera ndi moto.
Amagawidwa m'mitundu iwiri malinga ndi kutentha kwapangidwe, komwe kulilembani N ndi mtundu S.
| Mtundu | Kutentha kwapangidwe (°C) |
| N | -20 mpaka +60 |
| S | -40 mpaka +80 |
ndiISO 21809-1zimagwirizana ndi kalasi A ndi kalasi B, motsatana.
1st wosanjikiza Epoxy resin wosanjikiza, epoxy utomoni ufa ayenera kugwiritsidwa ntchito.
2 Zomatira wosanjikiza, amene akhoza kukhala ufa kapena extruded TACHIMATA.
3 wosanjikiza polyethylene wosanjikiza, chubu extrusion ndondomeko, kapena mapiringidzo extrusion ndondomeko.
Tube Extrusion:
Pochita izi, zinthu za polyethylene zimatulutsidwa mwachindunji mumtundu wopitilira tubular, womwe umakhazikika pa chitoliro chachitsulo.
Njirayi nthawi zambiri imagwiritsidwa ntchito pamapaipi ang'onoang'ono ang'onoang'ono ndikuwonetsetsa kufanana ndi kupitiliza kwa zokutira.
Kuphulika kwa extrusion:
Pochita izi, polyethylene imatulutsidwa mu mawonekedwe a kachidutswa kenaka kamakhala pamwamba pa chitoliro chachitsulo.
Njirayi ndi yoyenera kwa mapaipi akuluakulu ozungulira kapena osakhala ovomerezeka ndipo amalola kuti zitsulo zikhale zosinthika pamapaipi ovuta kapena akuluakulu.
Malingana ndi zosowa zenizeni za polojekitiyi, gawo lina la chitetezo cha makina likhoza kuwonjezeredwa ku 3LPE.
Zomwe zimagwiritsidwa ntchito nthawi zambiri zimaphatikizapokonkire(onani ISO 21809-5),pulasitiki yowonjezeredwa ndi galasi, kapena matope a simenti(onani DN N 30340-1).
Kuonetsetsa mphamvu kukameta ubweya wabwino, m`pofunika akhakula kapena pressurize pamwamba pa polyethylene.
Kuchiza kotereku kumathandiza kuonjezera kumamatira pakati pa zowonjezera zowonjezera zotetezera ndi zokutira za polyethylene.
Epoxy Resin Layer Makulidwe
Osachepera 80um.
Zomatira Layer Makulidwe
Osachepera 150um.
Kukhuthala Kwathunthu
Kutengera m'mimba mwake mwadzina la chitoliro chachitsulo, makulidwe a chitetezo cha dzimbiri adzakhala osiyana.
Pa makulidwe onse a 3LPE wosanjikiza, DIN 30670-1 amagawa makalasi atatu kuti athe kuthana ndi zofunikira zosiyanasiyana zomanga.n,v ndi s.
Gulu n: Pazinthu zabwinobwino, makulidwe a grade n nthawi zambiri amakhala okwanira.
Kwa zokutira za polyethylene, makulidwe a 1 mm amagwiritsidwa ntchito makamaka poteteza dzimbiri, pomwe makulidwe otsalawo amagwiritsidwa ntchito kuti apititse patsogolo mphamvu yonyamula katundu wagawo loteteza.
Gawo v: Ngati katundu wamakina akuwonjezeka (kuyendetsa, kusungirako, kuyala, khalidwe lapadera, zofunikira zowonjezera), makulidwe ocheperapo ophimba ayenera kuwonjezereka ndi 0,7 mm, ie v = n + 0.7 mm.
Gulu s: Makulidwe apadera a zokutira apamwamba kuposa v amathanso kuvomerezedwa kuti akwaniritse zosowa za projekiti inayake, ndipo makulidwe opaka makonda amalembedwa kuti Grade s.
150mm ± 20mm, bevel ngodya kwa makulidwe ❖ kuyanika sayenera kupitirira 30 °.
The epoxy ndi zomatira zigawo ayenera kuchotsedwa osachepera 80 mm kuchokera kumapeto kwa chitoliro.Chosanjikiza cha epoxy chidzasiyidwa chotuluka kuchokera kumapeto kwa chitoliro chokhala ndi polyethylene osachepera 10 mm.
Kuti mudziwe kutalika kwake, yesani kuchokera pamizu pamwamba pa chitoliro mpaka kumapeto kwa gawo lachitetezo cha dzimbiri.
General Zowonongeka
Zolakwika zazing'ono ndi kuwonongeka kwa pamwamba pazitsulo zomwe sizinafike.
Mabowo pamwamba pa PE;
Madera ang'onoang'ono okhala ndi kufalikira kosakwanira;
Inclusions ndi mpweya thovu mu wosanjikiza pamwamba;
Kumamatira kwa zinthu zakunja;
Abrasion pamwamba;
Madontho ang'onoang'ono mu zokutira.
Zovulala zazing'onozi zimaloledwa kukonzedwa ndipo palibe malire kudera lomwe lingakonzedwe.
Zowonongeka Kwambiri
Kuwonongeka kwa zokutira ndikolunjika pamwamba pa chitoliro chachitsulo.
Dera la zolakwika zomwe ziyenera kukonzedwa sikuyenera kupitirira 10 cm².Chiwerengero chovomerezeka cha zolakwika zomwe ziyenera kukonzedwa ndi 1 cholakwika pa mita imodzi ya kutalika kwa chitoliro.Apo ayi, chitolirocho chiyenera kulembedwa.
ISO 21809-1: Makamaka kunja atatu wosanjikiza extruded polyethylene ndi polypropylene (3LPE ndi 3LPP) zokutira zitsulo mapaipi ntchito kufala kachitidwe mu mafuta ndi gasi makampani.
CSA Z245.21: Imatchula zokutira zakunja za polyethylene anticorrosion kwa chitoliro chachitsulo chomwe chimagwiritsidwa ntchito pamakina otumizira.
AWWA C215: Zovala zakunja za polyethylene anti-corrosion zoyenera mapaipi operekera madzi.Ngakhale amagwiritsidwa ntchito kwambiri pamakina oyendetsa madzi, amafanana kwambiri ndi DIN 30670 potengera zida ndiukadaulo wogwiritsa ntchito.
Tikuyembekezera kugwirizana nanu kuti mupereke chitoliro chabwino kwambiri chachitsulo ndi njira zothetsera zotchingira ma projekiti anu.Chonde khalani omasuka kulumikizana nafe kuti mumve zambiri zamalonda, ndife okondwa kukuthandizani kuti mupeze njira yabwino kwambiri yachitsulo pazosowa zanu!
