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ASTM A131 Gulu A/B mbale yachitsulo ya Marine
ASTM A131 Gulu A/B mbale yachitsulo ya Marine
ASTM A131 Gulu A/B mbale yachitsulo ya Marine
ASTM A131 Gulu A/B mbale yachitsulo ya Marine

ASTM A131 Gulu A/B mbale yachitsulo ya Marine

ASTM A131 ndi gulu lachitsulo lachitsulo lomwe limagwiritsidwa ntchito pafupifupi pamakampani opanga zombo. Gululi limatanthauzidwa ngati mphamvu wamba yokhala ndi zokolola zochepa za 34KSI (235Mpa). Mapulogalamuwa akuphatikiza mabwato, zida zam'madzi komanso kupanga zombo. Maphunzirowa amatsimikiziridwa ndi American Bureau of Shipping (ABS)
Chidule chachidule cha mbale yachitsulo yam'madzi ndi mphamvu wamba ya A131
Chombo chachitsulo cha m'madzi chimatanthawuza zitsulo zomwe zimagwiritsidwa ntchito pomanga zombo. Imaonedwa kuti ndi ya m'madzi ndipo iyenera kukana zowononga zomwe zimachitika m'madzi. Kuti izi zitheke, ma alloying apadera amawonjezedwa pamakalasi awa kuti atetezere ku corrosion.Ngakhale kuti zitsulo zambiri za carbon sizoyenera kumadera a m'madzi, pali zitsulo zingapo za carbon grade carbon zomwe zavomerezedwa ndi magulu osiyanasiyana kuti agwiritse ntchito ntchito zopanga zombo.

Structural zitsulo kwa hulls sitima lagawidwa m'magulu mphamvu malinga ndi mphamvu osachepera zokolola: ambiri mphamvu structural zitsulo ndi mkulu mphamvu structural zitsulo. Maine zitsulo mbale amatanthauza otentha adagulung'undisa zitsulo mbale opangidwa mogwirizana ndi zofunikira za gulu classication pomanga nyumba chombo chombo. Zitsulo zonse zamphamvu za China Classification Society zimagawidwa m'magulu anayi: A B D ndi E.

Pali magulu 9 akuluakulu padziko lonse lapansi.
A.B.S    Bungwe la American Shipping
B.V.     Bureau Veritas
C.C.S. China Classification Society
D.N.V   Det Norske Veritas
G.L.    Germanischer Lloyd
K.R. Registry yaku Korea Yotumiza
L.R. Kaundula wa Lloyd wa Kutumiza
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

ASTM A131 ndi gulu lachitsulo lachitsulo lomwe limagwiritsidwa ntchito pafupifupi pamakampani opanga zombo. Gululi limatanthauzidwa ngati mphamvu wamba yokhala ndi zokolola zochepa za 34KSI (235Mpa). Mapulogalamuwa akuphatikiza mabwato, zida zam'madzi komanso kupanga zombo. Maphunzirowa amatsimikiziridwa ndi American Bureau of Shipping (ABS)

Izi zimakwirira mbale zachitsulo, mawonekedwe, mipiringidzo ndi ma rivets omwe amagwiritsidwa ntchito makamaka popanga zombo.
Mphamvu wamba- Giredi A B D CS ndi E yokhala ndi zokolola zochepa za 34 ksi(235MPa)


Kupanga zombo ndizofunikira kwambiri pakudziwika kwa America ndipo nzeru zaku America zimawala m'sitima zapamadzi, ma yacht, zombo zapamadzi, ndi zonyamula ndege. Zombo zazikulu zimayamba ndi mbale zazitsulo zapamwamba kwambiri zam'madzi ndipo Gnee amanyadira kupereka makampani opanga zombo za ku America ndi zitsulo zam'madzi ndi zam'mphepete mwa nyanja zomwe sizimawononga dzimbiri komanso zolimba, zomwe zikuwonetsa kuchepa kwamphamvu, ngakhale kuzizira, ndikuwonjezera mphamvu zolimbana ndi zoopsa komanso kugwedezeka. Ma mbale athu onse am'madzi amakumana ndi miyezo yokhazikitsidwa ndi ABS (American Bureau of Shipbuilding), ASTM, ndi API (American Petroleum Institute). Ndife ogulitsa odalirika azitsulo zam'madzi & zam'mphepete mwa nyanja padziko lonse lapansi komanso omanga zombo
Chemical zikuchokera ndi mawotchi katundu
Zofunika Zamakemikali Pazitsulo Zokhazikika-Zamphamvu
Chinthu Gulu A Gulu B Gulu D Gulu E Gawo CS
Deoxidation ndi Makulidwe (t) mu mm
t>2.0 mu(50mm) t>2.0 mu(50mm) t>1.0 mu(50mm)
C 0.21 0.21 0.21 0.18 0.16
Mn min 2.5 XC 0.60 0.60 0.70 1.00
Si 0.50 0.35 0.10-0.35 0.10-0.35 0.10-0.35
P 0.035 0.035 0.035 0.035 0.035
S 0.035 0.035 0.035 0.035 0.035
Ndi - - - -
Cr - - - - -
Mo - - - - -
Ku - - - - -
C+Mn/6 0.40 0.40 0.40 0.40 0.40

Chofunikira Chomangirira Pazamphamvu-Wamba komanso Mphamvu Zapamwamba Zachitsulo
Gulu Tensile Strength ksi(Mpa) Yield Strength min ksi(Mpa) Elongation mu 8 mu (200mm)% Kutalikira mu 2 mu (50mm) mphindi%
Mphamvu wamba
A B D CS E
58-75(400-520) 34(235) 21 24
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