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I-ASTM A131 Ibanga A/B Ipuleti Lensimbi Yasolwandle
I-ASTM A131 Ibanga A/B Ipuleti Lensimbi Yasolwandle
I-ASTM A131 Ibanga A/B Ipuleti Lensimbi Yasolwandle
I-ASTM A131 Ibanga A/B Ipuleti Lensimbi Yasolwandle

I-ASTM A131 Ibanga A/B Ipuleti Lensimbi Yasolwandle

I-ASTM A131 iyibanga lesakhiwo sepuleti lensimbi elisetshenziswa cishe embonini yokwakha umkhumbi kuphela. Leli banga lichazwa njengamandla ajwayelekile anesivuno esincane esishiwo esingu-34KSI(235Mpa). Izicelo zihlanganisa izikebhe, izinto zasolwandle kanye nokwakhiwa kwemikhumbi. Lawa mabanga aphinde aqinisekiswe yi-American Bureau of Shipping(ABS)
Ukwethulwa kafushane kwepuleti lensimbi yasolwandle namandla ajwayelekile e-A131
Ipuleti lensimbi yasolwandle lisho insimbi yesakhiwo esetshenziswa ekwakheni umkhumbi. Kuthathwa njengebanga lasolwandle futhi kufanele ukwazi ukumelana nemiphumela elimazayo evamile endaweni enamanzi. Ukufeza lokhu, izakhi ezikhethekile ze-alloying zengezwa kulawa mabanga ukuze kuvikelwe ngokumelene nokugqwala. Nakuba insimbi ye-carbon eningi ingafaneleki endaweni yasolwandle, kunezinsimbi ze-carbon grade zasolwandle ezigunyazwe imiphakathi ehlukene ukuze kwenziwe izicelo zokwakha imikhumbi.

Insimbi yesakhiwo yemikhumbi yemikhumbi ihlukaniswe yaba izigaba zamandla ngokuvumelana namandla ayo amancane okukhiqiza: amandla ajwayelekile ensimbi yesakhiwo kanye nensimbi yesakhiwo esinamandla aphezulu. Ipuleti lensimbi ye-Maine libhekisela kupuleti lensimbi eligoqiwe elishisayo elikhiqizwa ngokuhambisana nezidingo zomphakathi we-classication wokwakhiwa kwezakhiwo zemikhumbi yemikhumbi. Izinsimbi eziqinile ezijwayelekile ze-China Classification Society zihlukaniswe ngamabanga amane ekhwalithi: A B D kanye no-E.

Kunemiphakathi engu-9 eyinhloko yokuhlukanisa emhlabeni wonke.
A.B.S    I-American Bureau of Shipping
B.V.     I-Bureau Veritas
C.C.S. I-China Classification Society
I-D.N.V   Det Norske Veritas
G.L.    Germanischer Lloyd
K.R. Irejista yaseKorea Yokuthumela
L.R. Irejista kaLloyd Yokuthumela
N.K. Nippon Kaiji Kyokai
R.I.N.A  Registro Italiano Navale

I-ASTM A131 iyibanga lesakhiwo sepuleti lensimbi elisetshenziswa cishe embonini yokwakha umkhumbi kuphela. Leli banga lichazwa njengamandla ajwayelekile anesivuno esincane esishiwo esingu-34KSI(235Mpa). Izicelo zihlanganisa izikebhe, izinto zasolwandle kanye nokwakhiwa kwemikhumbi. Lawa mabanga aphinde aqinisekiswe yi-American Bureau of Shipping(ABS)

Lokhu kucaciswa kuhlanganisa amapuleti ensimbi esakhiwo, imilo, imigoqo kanye nama-rivets ahloselwe ukusetshenziswa ekwakhiweni komkhumbi.
Amandla avamile- IBanga A B D CS kanye no-E elinephuzu elincane elishiwo lesivuno elingu-34 ksi(235MPa)


Ukwakhiwa kwemikhumbi kuphakathi kobunikazi baseMelika futhi ubuhlakani baseMelika bukhanya emikhunjini yayo engaphansi kwamanzi, ezikebheni, emikhunjini yokuhamba ngomkhumbi, kanye nabathwali bezindiza. Imikhumbi emikhulu iqala ngepuleti lensimbi lezinga eliphezulu lasolwandle futhi i-Gnee iyaziqhenya ngokuhlinzeka imboni yezokwakha umkhumbi yaseMelika ngensimbi yasolwandle neyasogwini ekwazi ukumelana nokugqwala futhi eqinile, ebonisa ukuntenga okunciphile, ngisho emazingeni okushisa abandayo, namandla andayo okumelana nokuhlukumezeka kwamandla kanye ukudlidliza. Wonke amapuleti ethu ebanga lasolwandle ahlangabezana namazinga abekwe yi-ABS (American Bureau of Shipbuilding), ASTM, kanye ne-API (American Petroleum Institute). Singabahlinzeki abathembekile bensimbi yasolwandle ne-offshore steel emhlabeni wonke kanye nabakhi bemikhumbi besevisi
Ukwakheka kwamakhemikhali kanye nezakhiwo zemishini
Imfuneko Yekhemikhali Yensimbi Yesakhiwo Yamandla Avamile
Isici Ibanga A Ibanga B Ibanga D Ibanga E Ibanga CS
I-Deoxidation kanye Nokuqina(t) ku-mm
t>2.0 in(50mm) t>2.0 in(50mm) t>1.0 in(50mm)
C 0.21 0.21 0.21 0.18 0.16
Mn min 2.5XC 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
Ni - - - -
Cr - - - - -
Mo - - - - -
Cu - - - - -
C+Mn/6 0.40 0.40 0.40 0.40 0.40

Imfuneko ye-Tensile Yamandla-Ajwayelekile kanye Nensimbi Yesakhiwo Yamandla Aphakeme
Ibanga I-Tensile Strength ksi(Mpa) Yield Strength min ksi(Mpa) Ubude ku-8 in (200mm)% Ubude kumaminithi angu-2 ku-(50mm) %
Amandla avamile
A B D CS E
58-75(400-520) 34(235) 21 24
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