Kukula kwa ASTM A106 ndi ASTM A53:
Kufotokozera kwa ASTM A53 kumakwirira mitundu yopangira chitoliro chachitsulo chosasokonekera komanso chowotcherera, zakuthupi mu kaboni chitsulo, chitsulo chakuda.Pamwamba pachilengedwe, chakuda, komanso choviikidwa choviikidwa ndi malata, chitoliro chachitsulo chokhala ndi zinki.Miyezo imachokera ku NPS 1⁄8 mpaka NPS 26 (10.3mm mpaka 660mm), makulidwe a khoma mwadzina.
Kukhazikika kwa ASTM A106 kumakwiriracarbon Seamless steel pipe, yofunsira ntchito zotentha kwambiri.
Mitundu ndi magiredi osiyanasiyana amitundu yonse:
Kwa ASTM A53 pali ERW ndi mapaipi achitsulo opanda msoko amtundu F, E, S amakwirira Gulu A ndi B.
A53 Type F, ng'anjo matako welded, mosalekeza weld Giredi A
A53 Type E, Electric resistance welded (ERW), mu Giredi A ndi Giredi B.
A53 Type S, chitoliro chachitsulo chosasunthika, mu Gulu A ndi Gulu B.
Ngati zitsulo zosapanga dzimbiri zamagulu osiyanasiyana zikuponyedwa mosalekeza, zotsatira zake zidzadziwika.Ndipo wopanga ayenera kuchotsa zinthu zosinthira ndi njira zomwe zingalekanitse magiredi bwino.
Ngati ASTM A53 Kalasi B mu ERW (electric resistance welded) chitoliro, weld seam ichitidwa kutentha mankhwala ndi osachepera 1000 ° F [540 ° C].Mwanjira iyi palibe untempered martensite amakhalabe.
Ngati chitoliro cha ASTM A53 B chikuzizira, ndiye kuti kukula sikuyenera kupitirira 1.5% ya OD yofunikira.
Kwa chitoliro chachitsulo cha ASTM A106, kupanga Mtundu wokhawokha wopanda msoko, njira zotentha zopindidwa komanso kuzizira.Giredi mu A, B ndi C.
ASTM A106 Gulu A: Maximum Carbon element 0.25%, Mn 0.27-0.93%.Mphamvu zochepa zocheperako 48000 Psi kapena 330 Mpa, perekani mphamvu 30000 Psi kapena 205 Mpa.
A106 Gulu B: Zolemba malire C pansipa 0.30%, Mn 0.29-1.06%.Mphamvu zochepa zocheperako 60000 Psi kapena 415 Mpa, zipereka mphamvu 35000 Psi kapena 240 Mpa.
Gulu C: Zolemba malire C 0.35%, Mn 0.29-1.06%.Mphamvu zochepa zocheperako 70000 Psi kapena 485 Mpa, perekani mphamvu 40000 Psi kapena 275 Mpa.
Mosiyana ndiASTM A53 GR.B mapaipi achitsulo opanda msoko,ASTM A106 GR.B mapaipi achitsulo opanda msokoili ndi Si min 0.1%, yomwe A53 B ili ndi 0, kotero A106 B imakhala ndi kutentha kwabwino kuposa A53 B, popeza Si imathandizira kukana kutentha.
Magawo ogwiritsira ntchito onse awiri:
Mapaipi onsewa amagwiritsidwa ntchito pamakina ndi kuthamanga, kunyamula nthunzi, madzi, gasi, ndi zina.
Kugwiritsa ntchito chitoliro cha ASTM A53:
1. Kumanga, kuyenda mobisa, kuchotsa madzi pansi pamene akumanga, kuyendetsa madzi a nthunzi etc.
2. Bearing sets, makina mbali processing.
3. Kugwiritsa ntchito magetsi: Kutumiza kwa gasi, mapaipi amadzimadzi opangira magetsi.
4. Mphepo yamagetsi yamagetsi odana ndi malo amodzi chubu etc.
5. Mapaipi omwe amafunikira zinki zokutira.
Kugwiritsa ntchito chitoliro cha ASTM A106:
Makamaka ntchito kutentha kwambiri mpaka 750 ° F, ndipo imatha kulowetsa chitoliro cha ASTM A53 nthawi zambiri.M'mayiko ena osachepera ku United States, nthawi zambiri ASTM A53 ndi chitoliro chowotcherera pomwe ASTM A106 ndi mapaipi achitsulo opanda msoko.Ndipo ngati kasitomala afunsa ASTM A53 adzaperekanso ASTM A106.Ku China, wopanga adzapereka chitoliro chomwe chimatsatira miyezo itatu ya ASTM A53 GR.B/ASTM A106 GR.B/API 5L GR.B mapaipi achitsulo opanda msoko.
Nthawi yotumiza: Jul-11-2023