AWWA C213 chitoliro chamadzi chachitsulondi zokutira za FBE zomwe zimagwiritsidwa ntchito mkati ndi kunja kwa chitoliro chachitsulo kuti zigwiritsidwe ntchito pansi pa nthaka kapena pansi pa madzi zitsulo zamapaipi amadzi.
Kuphimba uku kumapereka chitetezo ku dzimbiri ndikuwonetsetsa kugwira ntchito kodalirika kwa mapaipi kwa nthawi yayitali pansi pa nthaka kapena pansi pamadzi.
Mtengo wa LSAW, SSAW, ERW,SMLS, ndi zina.malingana ndi zosowa zenizeni za polojekitiyi.
Chitoliro chakunja kwa chitoliro ≥ 660mm [24in] .Epoxy resin lining ndi mwayi wopita ku chitoliro kuti chifufuze ndi kukonza.
Ma diameter azitsulo zachitsulo <660mm [24in] angakhalenso oyenera, malinga ngati pali njira yoyenera yowonera kukhulupirika kwa zokutira zamkati.
Fusion Bonded Epoxy (FBE)ndi chigawo chimodzi youma ufa thermosetting epoxy utomoni kuti, pamene adamulowetsa ndi kutentha, amalenga anachita anachita padziko zitsulo chitoliro pokhalabe katundu wake.
Ufa wa epoxy uyenera kukhala ndi chinthu chimodzi chophatikizika chophatikizika chokhala ndi epoxy resin, machiritso, chothandizira, chodzaza, chopaka utoto, chowongolera kutuluka, ndi UV inhibitor.
Zipangizo ziyenera kutsatira zofunikira zaSafe Drinking Water Act.
Pamene kutsatiridwa kwa NSF kukufunika, zinthu zokhudzana ndi madzi amchere zidzatsimikiziridwa ku NSF/ANSI/CAN Standard 61.
Ambiri, pazipita ntchito kutentha kwa zokutira ndi pafupifupi65°C (150°F).Komanso, moyo wautumiki wa zokutira umachepetsedwa ndi kusunga kutentha kwakukulu kwa nthawi yaitali.
Mukagwiritsidwa ntchito pazinthu zowonongeka ndi kupopera mankhwala a electrostatic, bedi lamadzimadzi kapena kupopera mpweya ndikuchiritsidwa, ufa wa epoxy umapanga zokutira zoteteza yunifolomu.
Zochita zenizeni ndi izi:
Kuyang'anira Chitoliro ndi Kuchiza
Pamwambapa padzakhala opanda zilema zomwe zimakhudza chinthu chomaliza, monga ma burrs, gouges, ndi ma weld spatters, omwe amatha kuchotsedwa ndi mchenga.
ndi pamwamba padzakhala opanda matope, utoto wa mphero, sera, phula lamakala, phula, mafuta, mafuta, ma chloride, ndi zina zilizonse zakunja kapena zopsereza zoyaka zomwe zitha kuyaka pakutentha kolumikizana ndi epoxy.Chotsani mawanga owoneka amafuta ndi mafuta popukuta ndi zosungunulira zomwe sizisiya zotsalira.
Kukonzekera Pamwamba
Gwiritsani ntchito sandblasting youma kuyeretsa dzimbiri pamwamba pa chitoliro chachitsulo.
Zofunika Zachilengedwe Zophulika: Pamene kutentha kwa chitoliro chachitsulo ndi 3 ° C (5℉) pamwamba pa kutentha kwa mame.
Ukhondo Wapamtunda: Pamwamba pa chitoliro chachitsulo chotsika chizikhala molingana ndi SSPC-SP10/NACE No.
Kukula Kwapamtunda: Kuzama kwa njere za nangula mumitundu ya 51-102 μm (2.0-4.0 mil) yoyezedwa molingana ndi ASTM D4417.Izi zitha kuyezedwa ndi chokwera cha nangula kapena mita ya nangula.
Kukula kwapamtunda komwe kuli kozama kwambiri kapena kozama kwambiri kungakhudze magwiridwe antchito omaliza a FBE.
Zindikirani: Chonde dziwani kuti nthawi yayitali pakati pa kumalizidwa kwa kutsitsa ndi njira yokutira kuti musachite dzimbiri.
Kuyeretsa Mpweya
Mpweya wosaipitsidwa wopanda zoipitsidwa udzagwiritsidwa ntchito powombera fumbi, grit, kapena zinthu zina zakunja kuchokera kugawo lokonzekera la chitoliro m'njira zomwe sizimakhudza malo oyeretsedwa, chitoliro china choyeretsedwa, kapena chitoliro choti chikutidwe kapena kulumikizidwa.
Kutentha kwa Pipe
Chitoliro chachitsulo chotenthetsera pogwiritsa ntchito gwero la kutentha lomwe siliyenera kuwononga pamwamba pa chitoliro, koma lisapitirire 274 ° C (525 ° F ).
Kutentha kwapamwamba kumatha kusintha mawonekedwe akuthupi komanso kulimba kwachitsulo.
Kutentha kwapamtunda kwa chitoliro chachitsulo kumatha kuyeza pogwiritsa ntchito cholembera choyezera thermometer kapena choyezera choyezera thermometer.
Ngati mtundu wa buluu uchitika, chitolirocho chiyenera kuziziritsidwa ku kutentha kozungulira ndikuphulikanso.
Coating Process
FBE ufa umagwiritsidwa ntchito mofanana pamwamba pa chitoliro chachitsulo chotenthetsera ndi bedi losungunuka, kupopera mankhwala a electrostatic, kapena kupopera mpweya.
Ma grooves, opindika, kapena mizu sayenera kukutidwa ndi FBE.
Pamene zolumikizira za rabara-gasketed kapena ma mechanical couplings amagwiritsidwa ntchito, epoxy idzapitirira mpaka kumapeto kwa chitoliro pokhapokha atatchulidwa ndi wogula.
Kuziziritsa
Kuziziritsa kungatheke ndi mpweya kapena madzi.
Mtengo PQT: Gulani AWWA C213 Water Transmission Steel Pipe muyeso yaying'ono musanagule zambiri.Kuyenerera kapena kuyezetsa kumachitika kuti zitsimikizire kuti chinthu kapena makina akukwaniritsa zofunikira zenizeni komanso momwe amagwirira ntchito.
Izi zikuphatikiza kuyezetsa kwa labotale, kuwunika momwe magwiridwe antchito, ndi njira zina.
Mawonekedwe
Epoxy nthawi zambiri imakhala yosalala.
Epoxy sikhala ndi matuza, ming'alu, thovu, delamination, kapena zilema zina zowoneka.
Zolakwika zodzikongoletsera, monga ma sags, dimpling, scuffing, curtaining, over spray, ndi/kapena lalanje peel, sizingaganizidwe ngati chifukwa chokanidwa kapena kukonza.
Kuyang'anira magetsi kuti apitilize (kuyesa kwatchuthi kotsika-voltage)
Kupitilira kwa zokutira kuyenera kuyang'aniridwa molingana ndi NACE SPO490.
Kwa liningsyokhala ndi makulidwe a 20 mils (508 um) kapena kuchepera, chowunikira chocheperako chocheperako chokhala ndi 75 V chidzagwiritsidwa ntchito molingana ndi NACE SPO188.
Ngati chiwerengero cha maholide choposa chiwerengero pansipa ❖ kuyanika ayenera kuchotsedwa ndi remanufactured.
M'mimba mwake (OD) <14in (360 mm), tchuthi 1/mita (3 ft).
M'mimba mwake (OD) ≥ 14in (360 mm), tchuthi 1/25 ft² (2.3 mm²).
Tengani maholide omwe anawunikiridwa, akonzeni, ndi kuwayesanso.
Kumamatira
Kumamatira kwa epoxy yochiritsidwa pamwamba pa chitoliro kungapezeke mwa kukankhira tsamba lakuthwa kupyolera mu epoxy pamwamba pa chitoliro ndikugwiritsa ntchito kulima poyesa kuchotsa epoxy pamwamba pa chitoliro.
The epoxy ayenera kumamatira kwathunthu ku chitoliro pa chitoliro mwamphamvu kukana ntchito yolima ndi kukhala wopanda Chimaona zinyalala ndi kukumana ndiadhesion mlingo wa 1-3.
Makulidwe
Makulidwe a filimu yokutira yochiritsidwa siyenera kukhala yochepera 305um (12mil), kuphatikiza ma weld seams.
M'mabuku akale a AWWA C213, panali malire a 406 um (16 mils) makulidwe apamwamba a zokutira, omwe achotsedwa m'mawonekedwe atsopano chifukwa cha zovuta kukwaniritsa zofunikirazi panthawi yeniyeni ya mbadwo.
Mayesero Owonjezera
Mayesero owonjezera amatha kufotokozedwa kuti adziwe momwe epoxy imagwirira ntchito.
1. Kuphatikizika kwa magawo osiyanasiyana.
2. Interface porosity.
3. Thermal analysis (DSC).
4. Kupsyinjika kosatha (bendability).
5. Madzi zilowerere.
6. Mphamvu.
7. Kuyesedwa kwa Cathodic disbondment.
Idzalembedwa momveka bwino ndi dzina la wopanga, mtundu wazinthu, batch kapena nambala ya maere, tsiku lopangidwa, ndi momwe amasungira.
Makamaka mapaipi operekera madzi
Zopaka zakunja zimagwiritsidwa ntchito poteteza mipope kuti isawonongeke ndi chilengedwe, pomwe zokutira zamkati zimagwiritsidwa ntchito kuteteza kuipitsidwa kwa madzi, kuchepetsa kusagwirizana, komanso kukulitsa moyo wa chitoliro.Zopaka izi zimathandiza kutsimikizira kudalirika ndi kukhazikika kwa makina opangira mapaipi, kutsatira miyezo yaukhondo, komanso kuchepetsa kufunika kosamalira.
ANSI/AWWA C203: Zotchingira Zodzitchinjiriza za Malasha ndi Linings za Paipi Yamadzi Yachitsulo.
ANSI/AWWA C209: Zopaka tepi za Chitoliro cha Madzi a Zitsulo ndi Zopangira.
ANSI/AWWA C210: Zopaka za Liquid-Epoxy and Linings for Steel Water Pipe and Fittings.
Botop Steel ndi Welded wapamwamba kwambiriChitoliro cha Carbon Steelwopanga ndi katundu ku China, komanso zitsulo chitoliro stockist.
Botop Steel ili ndi kudzipereka kolimba pazabwino ndipo imagwiritsa ntchito kuwongolera mokhazikika ndikuyesaonetsetsani kudalirika kwazinthu.Gulu lake lodziwa zambiri limapereka mayankho aumwini ndi chithandizo cha akatswiri, ndikuyang'ana kukhutira kwamakasitomala.Tikuyembekezera kugwira ntchito nanu.
