ASTM-SA516Gr60Z35 chitsulo chozindikira zolakwika mbale:
1. SA516Gr60 muyeso wamkulu: American ASTM, ASME miyezo
2. SA516Gr60 ndi ya otsika kutentha chotengera chotengera ndi mpweya zitsulo mbale
3. Mankhwala a SA516Gr60
C≤0.30, Mn: 0.79-1.30, P≤0.035, S: ≤0.035, Si: 0.13-0.45.
4. Makina a SA516Gr60
SA516Gr60 mphamvu yamphamvu ya mapaundi 70,000/square inchi, zomwe zili ndi C Mn Si ps control zimatsimikizira momwe zimagwirira ntchito.Zinthu zina zotsatirira zochepa.Kufotokozera kwa Asme Standard kwa mbale zachitsulo za kaboni zotengera zapakati komanso zotsika kutentha.
5. Mkhalidwe wotumizira wa SA516Gr60
Mbale yachitsulo ya SA516Gr60 nthawi zambiri imaperekedwa pozungulira, mbale yachitsulo imathanso kukhala yokhazikika kapena yopumula kupsinjika, kapena kukhazikika komanso kuwongolera kupsinjika.
makulidwe SA516Gr60> 40mm zitsulo mbale ayenera normalized.
Pokhapokha ngati afotokozeredwa mwanjira ina, makulidwe a mbale yachitsulo ≤1.5in, (40mm), pakakhala zofunikira zolimba, ziyenera kukhazikika.
6. SA516Gr60 imagwiritsidwa ntchito popanga chidebe chowotcherera chokhala ndi wosanjikiza umodzi, chidebe chowotcherera chokhala ndi mikono yambiri, chotengera chamitundu yambiri ndi mitundu iwiri ndi itatu ya zida ndi zotengera zotsika kutentha.Amagwiritsidwa ntchito kwambiri mu petroleum, makampani opanga mankhwala, poyikira magetsi, boiler ndi ntchito zina, zomwe zimagwiritsidwa ntchito popanga ma reactors, osinthanitsa kutentha, olekanitsa, akasinja ozungulira, akasinja amafuta ndi gasi, akasinja amafuta amadzimadzi, ng'oma yowotchera, masilinda amadzi amafuta amafuta, malo opangira magetsi. mapaipi amadzi othamanga kwambiri, turbine volute ndi zida zina ndi zigawo.pa
7. Pamene austenite itakhazikika pang'onopang'ono (yofanana ndi kuzizira kwa ng'anjo, monga momwe tawonetsera mkuyu 2 V1), zinthu zosinthika zimakhala pafupi ndi dongosolo la mgwirizano, pearlite ndi ferrite.Ndi kuwonjezeka kwa kuzirala mlingo, ndiye, pamene V3> V2> V1, ndi undercooling wa austenite pang'onopang'ono kumawonjezera, ndipo kuchuluka kwa mpweya ferrite amakhala pang'onopang'ono, pamene kuchuluka kwa pearlite pang'onopang'ono ukuwonjezeka, ndipo dongosolo amakhala bwino.Panthawi imeneyi, ferrite yocheperako imagawidwa kwambiri pamalire a tirigu.
8. Choncho, mapangidwe a v1 ndi ferrite + pearlite;Kapangidwe ka v2 ndi ferrite + sorbite;Microstructure ya v3 ndi ferrite + troostite.
9. Pamene mlingo wozizira ndi v4, ferrite yaing'ono ya network ndi troostite (nthawizina pang'ono ya bainite imatha kuwonedwa) imatenthedwa, ndipo austenite imasinthidwa makamaka kukhala martensite ndi troostite;Pamene kuzizira kwa v5 kumaposa kuzizira koopsa, chitsulocho chimasandulika kukhala martensite.
10. Kusintha kwachitsulo cha hypereutectoid ndi chofanana ndi chitsulo cha hypoeutectoid, ndi kusiyana komwe ferrite imayambira poyamba ndipo cementite imayambira poyamba.
Nthawi yotumiza: Dec-14-2022
