RINA D500 marine steel daim hlau yog tsim tshwj xeeb kom tau raws li cov kev cai nruj ntawm kev lag luam shipping. Cov qib siab - qib steel phaj muaj cov khoom siv zoo heev, tshuaj lom neeg muaj pes tsawg leeg, thiab cov yam ntxwv kho cua sov, ua rau lawv tsim nyog rau ntau yam kev siv dej hiav txwv.
Ua ntej, cia peb delve rau hauv cov tshuaj muaj pes tsawg leeg ntawm RINA D500 steel. Cov phaj no feem ntau yog tsim los ntawm carbon, silicon, manganese, phosphorus, sulfur, chromium, npib tsib xee, molybdenum, thiab tooj liab. Qhov sib npaug ntawm cov ntsiab lus no ua kom lub zog siab, tiv thaiv corrosion, thiab ductility, tseem ceeb heev rau cov qauv marine.
|
Lub ntsiab |
RINA D500 Max % |
Lub ntsiab |
RINA D500 Max % |
|
C |
0.20 |
Ni |
0.40 |
|
Mn |
1.70 |
Mo |
0.08 |
|
Si |
0.10-0.55 |
Al |
0.020 min |
|
S |
0.030 |
Nb |
0.20-0.05 |
|
P |
0.030 |
V |
0.05-0.10 |
|
Cu |
0.35 |
Ti |
0.0007-0.05 |
|
Cr |
0.20 |
N |
|
Hais txog cov khoom siv kho tshuab, RINA D500 steel daim hlau nthuav tawm lub zog tensile zoo kawg nkaus, lub zog tawm los, thiab elongation. Lawv lub zog tensile siab tso cai rau lawv tiv taus cov huab cua huab cua uas tau ntsib nyob rau hauv marine ib puag ncig, thaum lawv cov txiaj ntsig zoo zog ua kom muaj kev ncaj ncees thiab ruaj khov. Cov cuab yeej elongation ua kom ductility, tso cai rau cov hlau kom deform yam tsis muaj fracturing.
|
Qib |
Thickness |
Yield zog |
Tensile zog |
Elongation |
Impact Zog |
|
|
(mm) |
MPa (min) |
MPa |
% (min) |
(KV J) (min) |
|
|
|
|
|
|
-20 degree |
|
TSI D500 |
8-260 |
500 |
610-770 |
16 |
33J |
Kev kho cua sov ntawm cov hlau phaj no kuj tseem ceeb heev. Lawv feem ntau yog cua sov- kho kom ua tiav cov khoom siv kho tshuab thiab microstructure xav tau. Cov txheej txheem no suav nrog kev tswj cov cua sov thiab cua txias uas txhim kho cov hlau lub zog, lub zog, thiab tiv thaiv corrosion.
Kev ntsuam xyuas cuam tshuam yog ib feem tseem ceeb ntawm cov txheej txheem tswj kom zoo rau cov hlau phaj no. Qhov kev ntsuam xyuas no ntsuas cov khoom muaj peev xwm tiv thaiv tam sim ntawd thiab khaus rog, simulating tej yam kev mob tshwm sim nyob rau hauv marine kev sib tsoo los yog lwm yam cuam tshuam cov xwm txheej. Qhov cuam tshuam zoo heev ntawm RINA D500 steel daim hlau ua kom muaj kev nyab xeeb thiab ua haujlwm ntev ntawm cov qauv hauv hiav txwv.
Cov ntawv thov tseem ceeb ntawm RINA D500 steel daim hlau hla thoob plaws lub nkoj hiav txwv. Lawv tau siv dav hauv kev tsim cov nkoj, nkoj, thiab lwm yam nkoj hiav txwv, tshwj xeeb tshaj yog nyob rau hauv cov cheeb tsam uas yuav tsum tau muaj zog thiab corrosion kuj, xws li hulls, decks, thiab bulkheads. Lawv qhov kev ua tau zoo heev hauv qhov hnyav marine ib puag ncig ua rau lawv muaj kev ntseeg siab rau kev lag luam shipping.
