ASTM A234 WPB & WPC zopangira mapaipi kuphatikiza zigongono, tee, zochepetsera

Kufotokozera Kwachidule:

Izi zimakwirira chitsulo chopangidwa ndi kaboni ndi aloyi zitsulo zomanga zopanda msoko komanso zowotcherera.Zopangira izi ndizomwe zimagwiritsidwa ntchito popanga mapaipi oponderezana komanso popanga zotengera zokakamiza kuti zizigwira ntchito pa kutentha kocheperako komanso kokwera.Zomwe zimapangidwira ziyenera kukhala ndi zitsulo zophedwa, zopangira, mipiringidzo, mbale, zopanda msoko kapena zophatikizika-welded tubular zokhala ndi zitsulo zowonjezeredwa.Kupanga kapena kupanga maopaleshoni atha kuchitidwa mwa kumenya nyundo, kukanikiza, kuboola, kutulutsa, kusokoneza, kugudubuza, kupindika, kuphatikizira kuwotcherera, kupanga makina, kapena kuphatikiza ziwiri kapena zingapo mwa izi.Njira yopangirayi iyenera kugwiritsidwa ntchito kotero kuti sizingabweretse zolakwika zovulaza muzosakaniza.Zopangira, zitapangidwa pa kutentha kwakukulu, ziyenera kuzizidwa ku kutentha pansi pa mlingo wovuta kwambiri pansi pamikhalidwe yoyenera kuti zisawonongeke zowonongeka zomwe zimayambitsidwa ndi kuzizira kofulumira, koma sizichitika mofulumira kuposa kuzizira kwa mpweya wokhazikika.Zopangirazo ziyenera kuyesedwa kupsinjika, kuyesa kuuma, ndi kuyesa kwa hydrostatic.

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Mapangidwe a Chemical a ASTM A234 WPB & WPC

Chinthu	Zomwe,%
Chinthu	ASTM A234 WPB	ASTM A234 WPC
Mpweya [C]	≤0.30	≤0.35
Manganese [Mn]	0.29-1.06	0.29-1.06
Phosphorous [P]	≤0.050	≤0.050
Sulfure [S]	≤0.058	≤0.058
Silicon [Si]	≥0.10	≥0.10
Chromium [Cr]	≤0.40	≤0.40
Molybdenum [Mo]	≤0.15	≤0.15
Nickel [Ni]	≤0.40	≤0.40
Mkuwa [Cu]	≤0.40	≤0.40
Vanadium [V]	≤0.08	≤0.08

*Zofanana ndi Carbon [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] sizidzaposa 0.50 ndipo zidzafotokozedwa pa MTC.

Katundu Wamakina a ASTM A234 WPB & WPC

Zithunzi za ASTM A234	Mphamvu Zolimba, min.		Zokolola Mphamvu, min.		Elongation %, min
Zithunzi za ASTM A234	ksi	MPa	ksi	MPa	Longitudinal	Chodutsa
WPB	60	415	35	240	22	14
WPC	70	485	40	275	22	14

*1.Zopangira mapaipi a WPB ndi WPC opangidwa kuchokera m'mbale ziyenera kukhala ndi kutalika kwa 17%.
*2.Pokhapokha pakufunika, kuuma mtengo sikuyenera kufotokozedwa.

Kupanga

Zida za ASTM A234 zachitsulo za carbon steel zitha kupangidwa kuchokera ku mapaipi opanda msoko, mapaipi owotcherera kapena mbale popanga ntchito za kukanikiza, kuboola, kutulutsa, kupindika, kuphatikizika, kuwotcherera, makina, kapena kuphatikiza ziwiri kapena zingapo izi.Ma welds onse kuphatikiza zowotcherera muzinthu za tubular zomwe zimapangidwira ziyenera kupangidwa molingana ndi ASME Gawo IX.Pambuyo pa kuwotcherera kutentha kwa 1100 mpaka 1250 ° F [595 mpaka 675 ° C] ndi kufufuza kwa radiographic kudzachitidwa pambuyo pa kuwotcherera.

Zam'mbuyo: Mapaipi Achitsulo Osasinthika a Carbon ASTM A106 Gr.B

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