Cov Lus Qhia Yooj Yim
Stk490 conforms rau cov qauv kev lag luam Nyij Pooj (JIS) G3444, kom ua tau tias nws ua tau zoo thiab ua tau zoo. Tus qauv no tau npog qhov ntev, kev ua kom tau zoo, thiab cov yam ntxwv ntawm cov hlau leeg.
Hauv JIS G3444 tus qauv, uas qhia meej cov roj carbon hlau rau cov hom phiaj txheem hlau yog lub hom phiaj, STK49, STK490, STK49, thiab STK540. Ntawm cov no,Stk490Puas yog ib qho ntawm cov qib nquag siv ntau dua vim nws cov khoom sib npaug ntawm lub zog thiab muaj zog.
JIS G3444 STK490 raj
Txheem:JIS G3444
Qib:Stk290, STK400, STK490, STK500, STK540
Txoj kev ua haujlwm:
Seamless, pob tw-vuam, erw thiab arc vuam txheej txheem
Sab nraud ntawm lub cheeb:
SSAW 219M - 4084 hli
Lsaw 406mm - 1420 hli
ERW 20mm - 660 hli
Phab Ntsa Thickness:7. {{{{{}}. 4mm (ssaw), {}} mm (lsaw), 1. {Mm (ERW)
Ntev:Feem ntau yog 5.8m, 6m, 12m, kuj nyob ntawm qhov yuav tsum tau ua
Qhov Zoo:Lub zog siab, detability, yooj yim rau fabricate.
Daim Ntawv Thov:Kev thauj mus los hauv dej, kev lag luam kev lag luam, kev lag luam hluav taws xob.
Tshuaj Muaj Tshuaj
| Lub ntsiab | Siab kawg% |
|---|---|
| Carbon (c) | 0.18 |
| Silicon (si) | 0.55 |
| Manganese (mn) | 1.65 |
| Phosphorus (p) | 0.035 |
| Sulphur (s) | 0.035 |
Cov pa roj carbon (c):Thawj qhov tseem ceeb ntxiv dag zog. Cov ntsiab lus ntau cov pa roj carbon ntau dua nce lub zog thiab hardness tab sis txo weldability thiab ductility. Stk490's Cov Ntsiab Lus Cov Khoom Siv Hluav Taws Xob kom muaj kev sib npaug ntawm lub zog thiab muaj zog.
Manganese (MN):Txhim kho lub zog thiab tawv thaum txhim kho kev nyuaj. Nws kuj tseem yuav pab ua kom paub cov qauv sib dhos, txhim kho cov khoom siv neeg kho tshuab tag nrho.
Silicon (si):Txhim kho lub zog thiab oxidation tsis kam. Nws tseem AIDS hauv Deagidation thaum tsim khoom steel, txo cov impurities.
Phosphorus (p) thiab Sulphur (s):Cov no yog cov ntsiab lus tseem ceeb ntawm cov qib qis kom tsis txhob brittleness thiab txo qhov kev pheej hmoo ntawm kev tawg thaum sib tw lossis sib sau ua ke.
Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | Tus nqi (raug) | Qhov tseem ceeb |
|---|---|---|
| Lub zog tensile | 490 MPa (yam tsawg kawg nkaus) | Lub zog tensile yog qhov kev ntxhov siab tshaj plaws uas cov khoom siv tuaj yeem tiv thaiv thaum tab tom rub tawm lossis rub tawm ua ntej tawg. Stk490 lub zog tensile ntawm 490 mpa ua rau nws haum rau load-cov kabmob qauvk ua. |
| Paib lub zog | 325 MPa (yam tsawg kawg nkaus) | Tos lub zog yog qhov kev ntxhov siab uas cov khoom pib deform plastically. Ib qho txiaj ntsig lub zog ntawm 325 MPa kom cov hlau tuaj yeem tiv taus cov khoom tseem ceeb uas tsis muaj kev cuam tshuam loj. |
| Elongation | 20% - 25% | Kev ntsuas kev ntsuas Elongation qhov kev ntsuas ntawm cov khoom, lossis nws lub peev xwm los ncab ua ntej tawg. Stk490's elongation ntawm 20-25% qhia tau zoo formability thiab tawv. |
| Kev nyuaj | 140 - 180 hb | Hardness yog kev ntsuas ntawm cov khoom siv tiv thaiv kom deformation. Stk490 lub hardnerness kom nws muaj zog txaus rau cov qauv siv thaum seem machinable thiab weldable. |
| Kev Cuam Tshuam | Ntau dua los yog sib luag rau 27 j (ntawm 20 degree) | Qhov cuam tshuam cov khoom nruj ntsuas cov khoom siv lub peev xwm los nqus lub zog thaum thauj khoom sai sai. Stk490 lub toughness ua kom nws tuaj yeem tiv taus cov khoom siv thiab kev poob siab. |
Lub zog tensile thiab tawm tswv yim zog:Cov khoom siv no kom ntseeg tau tias Stk490 tuaj yeem tiv thaiv cov khoom tseem ceeb uas tsis muaj kev ua tsis tiav, ua rau nws zoo tagnrho rau cov ntawv thov kev tsim cov thav duab, txuas ntxiv.
Elongation:High elongation qhia tau zoo ductility, cia cov khoom siv los deform hauv kev ntxhov siab yam tsis muaj kev ntxhov siab. Qhov no yog qhov tseem ceeb rau cov qauv tsim kom zoo lossis cuam tshuam.
Hardness:Siv zog xob ua kom nruj cov khoom siv tau muaj zog txaus rau kev siv cov txheej txheem thaum seem ua haujlwm thiab weldable.
Kev Cuam Tshuam Cov:Stk490 lub peev xwm los nqus lub zog thaum thauj khoom tam sim no ua kom cov ntawv thov uas poob siab tsis kam yog qhov tseem ceeb.
Kev sib piv nrog lwm qib
- Stk400:Stk490 muaj lub zog siab dua thiab tawm lub zog ua piv rau STK400, ua rau nws haum ntau tsim nyog siv lub peev xwm ntau dua.
- Stk500:Thaum STK500 muaj lub zog siab dua, stk490 muab zoo dua weldability thiab formability, ua rau nws ntau ntxiv rau ntau yam qauv.
Qhov Zoo thiab Cov Ntawv Thov
Qhov Zoo
Lub zog siab:Nrog lub zog tensile ntawm tsawg kawg 490 MPa, STK490 yog qhov tsim nyog rau cov ntawv thov uas xav tau.
Zoo weldability:Cov tshuaj lom neeg tshuaj muaj pes tsawg leeg ua kom tau txais txiaj ntsig zoo weldability, pab txhawb kev yooj yim ntawm cov fabrication.
Ductility:Tsim nyog elongation Proderties tso cai rau deformation yam tsis muaj pob txha lov, ua kom muaj kev nyab xeeb hauv cov ntawv thov txheej txheem.
Nqi Them Nqi:Muab cov nyiaj sib npaug zoo ntawm kev ua tau zoo thiab tus nqi, ua nws txoj kev xaiv zoo rau ntau txoj kev lag luam.
Cov Ntawv Thov
Stk490 yog qhov dav nyob rau hauv:
Kev Tsim Kho:Rau lub tsev ua haujlwm, txuas hniav, thiab lwm yam khoom siv.
Automotive:Hauv chassis thiab cov qauv txheej txheem.
Machinery:Rau kev tsim cov tshuab thiab khoom siv.
Cov qauv dav dav:Hauv kev thov ntau yam engineering ntau xav tau lub zog muaj zog thiab kav ntev.
Stk490 nyob rau hauv JIS G3444 yog lub siab-zog, ntau yam steel hlau nrog cov kws kho tshuab hluav taws xob zoo thiab muaj kev sib raug zoo. Nws cov tshuaj lom neeg sib xyaw ua ke thiab kev xaiv muaj zog ua rau nws xaiv tau ntau yam ntawm cov ntawv thov kev tsim kho tau yam tsis muaj txiaj ntsig ntawm lub zog thiab kav ntev.
Cim npe nrov: JIS G3444 STK490 raj, Tuam Tshoj, cov chaw muag khoom, chaw tsim khoom, Hoobkas, nqi
