Nk e40 marine steel daim hlau tau tshwj xeeb tsim cov ntaub ntawv uas tau siv siv dav hauv kev lag luam nkoj. Cov qib steel no muaj cov khoom zoo tshaj plaws uas ua rau lawv haum rau ntau cov ntawv thov marine. Cia relve rau hauv cov ntsiab lus ntawm lawv cov tshuaj muaj pes tsawg leeg, cov neeg kho mob tshuab, kev kho cua sov, kev ntsuas kom sov, thiab cov ntawv thov tseem ceeb.
Firstly, cov tshuaj lom neeg muaj pes tsawg leeg ntawm nk40 cov paib hlau yog ua tib zoo tswj kom ntseeg tau tias cov khoom xav tau. Cov qhov no feem ntau muaj cov pa roj carbon, silicon, mangholorus, tus neeg sab nrauv, thiab tooj ntau, thiab tooj liab, nrog rau cov qauv thoob ntiaj teb rau cov ntawv thov marine. Lub ntsuas phoo sib npaug ntawm cov txiaj ntsig siab, kev ua kom zoo, thiab cov tshuaj tiv thaiv corrosion zoo heev.
NY E40 Steel Phaj Tshuaj Muaj Tshuaj
| Teem nqi |
Cax |
Si max |
Mn |
P max |
S max |
Als min |
Ti max |
Cu Max |
Cr |
Ni |
Mo |
Nb |
V |
|
Nk e40 |
0.18 |
0.50 |
0.90-1.60 |
0.035 |
0.035 |
0.015 |
0.02 |
0.35 |
0.20 |
0.40 |
0.08 |
0.02-0.05 |
0.05-0.10 |
Txav mus rau cov khoom siv rau cov tshuab, cov phaj E40 Cov Phiaj Hlau nthuav nthuav nthuav qhia lub zog zoo tshaj plaws, tawm suab lub zog, thiab elongation. Lawv tuaj yeem tiv thaiv cov nra hnyav thiab deformation yam tsis poob, ua kom muaj kev nyab xeeb thiab kev siv taus ntawm cov txiv neej ua haujlwm. Lub siab nruj ntawm cov phiaj no tso cai rau lawv nqus tej yam kev cuam tshuam kev pheej hmoo, txo qis kev pheej hmoo ntawm kev tawg lossis tawg rau hauv huab cua.
Nk e40 steel phaj cov cuab yeej
| Teem nqi |
Rm |
Re (mpa) min |
Ib% min |
AKV / JIN |
||||||
|
Nk e40 |
510-660 |
390 |
20 |
Thiab degree |
Tuab (mm) |
|||||
|
-60 |
Tsawg dua los yog sib npaug rau 50 |
>50-70 |
>70-100 |
|||||||
|
L |
C |
L |
C |
L |
C |
|||||
|
41 |
27 |
- |
||||||||
Hais txog kev kho cua sov, nk40 steel daim ntawv sau cov txheej txheem xws li ib txwm los yog quenching thiab tempering kom ua tiav cov khoom xav tau. Cov kev kho mob txhim kho microstructure ntawm cov hlau, txhim kho nws lub zog, kev nruj, thiab weldability. Cov cua sov -} Kev kho cov phiaj yog ces txias maj los tiv thaiv kev tsim ntawm kev ntxhov siab sab hauv lossis distortions.
Hais txog qhov ntev tshaj plaws, nk40 steel daim hlau muaj nyob rau hauv ntau cov thickness, dav, thiab ntev kom tau raws li cov phiaj xwm tshwj xeeb. Cov phiaj tuaj yeem txiav, drilling, thiab welded kom haum rau hauv cov tub rog ua tub rog, ua rau lawv muaj peev xwm heev thiab hloov kho tau.
Kev Cuam Tshuam yog ib qho tseem ceeb ntawm kev ua kom muaj kev ntseeg siab ntawm cov hlau E40 steel. Cov kev kuaj no ntsuas cov phiaj xwm lub peev xwm tiv thaiv kom nrawm lossis cuam tshuam, simulating tiag- ntiaj teb cov xwm txheej. Cov phiaj feem ntau pom pom kev cuam tshuam zoo heev, kom ntseeg tau lawv txoj kev nyab xeeb thiab ruaj khov txawm nyob hauv cov tub rog ua haujlwm.
