Sichuan Hirofu Tshwj xeeb Hlau tuam txhab yog ib qho ntawm cov neeg tsim khoom thiab cov chaw muag khoom ntawm SNCM431 JIS G4053 Hardened Hlau hauv Suav teb. Nrog ntau tshaj 20 xyoo kev paub, peb lub Hoobkas muaj cov khoom lag luam zoo hauv Suav teb nrog cov nqi sib tw. Txais tos tiv tauj peb rau kev pabcuam lag luam wholesale.
SNCM431 JIS G4053 HARDENED STEEL
SNCM431 yog qhov qis - alloy steel rau cov neeg siv tshuab, thiab mangy sncm431 Nws muaj lub zog siab, hnav zoo tiv taus, siab {{{}} lub zog kub, thiab muaj kuab zoo. Tom qab kev kho cua sov kom zoo, nws yog hlau ntawm cov qauv yog tsuas yog martensite thiab khaws cia Austenite, uas xaus rau kev cuam tshuam zoo.
SNCM431 Tshuaj Muaj Zog (JIS G4053 Txheem)
| Lub ntsiab | Cov ntsiab lus ntau (%) |
|---|---|
| Carbon (c) | 0.38–0.43 |
| Silicon (si) | 0.15–0.35 |
| Manganese (MN) | 0.60–0.90 |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.030 |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.030 |
| Chromium (cr) | 0.70–1.00 |
| Npib tsib caug (ni) | 1.60–2.00 |
| Molybdenum (mo) | 0.20–0.30 |
SNCM431 yog ib tus qauv Japanese Alloy (JIS), thaum 30Crnimo8 yog German / Din cov qauv hlau (feem ntau cais raws li "hardened thiab tempered steel").
Lub cev siv lub cev ntawm SNCM431 Hardened Hlau
Ntawm no yog cov ncauj lus kom ntxaws saib ntawm cov khoom siv lub cev ntawm SNCM431 (JIS G4053) Hardened Steel (nquag quenching thiab tempering), nthuav tawm hauv ib hom qauv:
| Ntiag tug | Tus nqi raug / Ntau Yam | Ib yam | Sau ntawv / piav qhia |
|---|---|---|---|
| Ceev | ~7.85 | g / cm³ | Cov qauv ntom rau feem ntau cov pa roj carbon thiab qis -} cov hlau almoy. |
| Melting taw tes | ~1420–1460 | tiv kis | Qhov ntsuas kub ntau yam ntawm cov hlau hloov los ntawm cov khoom ua kua. |
| Thermal conductivity | ~43–50 | W/m·K | Kev ua tshav kub kub ua kom haum, haum rau cov ntawv thov nrog cov thermal xav tau. |
| Coefficient ntawm thermal expansion (CTE) | 11.0–12.0×10⁻⁶ | Qib ⁻¹ (20-100 Qib) | Linear nthuav tawm tus nqi nrog qhov kub hloov; Raug rau tsawg -} cov hlau nplaum alloy. |
| Elastic modulus | ~205–210 | GPA | Txhav ntawm cov khoom; qhia tias tsis kam mus rau Elastic deformation. |
| Poisson tus piv | ~0.28–0.30 | - | Piv ntawm transverse quav rau axial strain nyob rau hauv elastic thauj khoom. |
| Hluav taws xob tiv thaiv hluav taws xob | ~0.20–0.30×10⁻⁶ | Ω·m | Hluav taws xob tiv thaiv hluav taws xob tiv thaiv, raug rau cov hlau alloy (siab dua li cov hlau ntshiab). |
Cov Khoom Siv Neeg Kho Tshuab (Hardened & Tempered Xeev)
(Nco tseg: cov khoom siv lub cev feem ntau txuas rau kev coj tus cwj pwm tom qab kev kho cua sov.)
| Ntiag tug | Cov nqi raug | Ib yam | Cov Qauv / Xeem Ntawv |
|---|---|---|---|
| Tensile lub zog (ulb) | Ntau dua los yog sib npaug rau 1080 | MPa | JIS G4053; Kuaj tom qab quenching thiab tempering. |
| Yield zog (σ0.2) | Ntau dua los yog sib npaug rau 930 | MPa | 0.2% offset tawm los; qhia tau qhov pib ntawm cov yas deformation. |
| Elongation (Δ5) | Ntau dua los yog sib npaug rau 10% | - | Feem pua elongation ntawm bacture; xav txog ductility. |
| Txo thaj chaw (ψ) | Ntau dua los yog sib npaug rau 45% | - | Feem pua txo nyob rau hauv Cross - ntu ntu; Kev ntsuas cov khoom muaj peev xwm yas ua kom muaj peev xwm. |
| Kev cuam tshuam cov tawv (k) | Ntau dua los yog sib npaug rau 60 | J / CM² | Charpy cuam tshuam kev ntsuas; tsis kam mus rau kev thauj khoom sai lossis poob siab. |
| Hardness (HB) | 280–340 | HB | Brinell hardness; Sib npaug ntawm kev hnav tsis kam thiab machinility tom qab pib tempering. |
| Qaug zog muaj zog | Ntau dua los yog sib npaug rau 500 | MPa | Kev ntsuas kev txwv nyob rau hauv cyclic chaw thau khoom (symmetrical ntxhov siab kev ntxhov siab mus). |
Cov yam ntxwv tseem ceeb & kev siv
(1high lub zog & tougning:
SNCM431 Cov Khoom Taw Qhia Zoo Tshaj Plaws Ntawmlub zog(los ntawm carbon thiab alloying ntsiab xws li ni, cr, mo) thiabkev muaj zog(Los ntawm kev kho cua sov kom zoo), ua rau nws haum siab rau high - Log Cheebtsam.
Piv txwv li cov ntawv thov: cov dav hlau cav, tsheb sib kis hauv hluav taws xob, hnyav {{} desise} lub luag haujlwm zog, thiab crankshmts.
(2Qhov lus teb tau zoo:
Yuav yog quenched thiab tempered kom tau txais kev tawv thiab muaj zog.
Cov txheej txheem kev kho cua sov:
Quenching: ~ 850-880 Qib (Roj lossis Dej Txias).
Tempering: ~ 500-650℃(nyob ntawm cov hardness thiab kev nruj me ntsis).
(3) Corrosion & Hnav Kuj:
Kev sib xyaw ua ke ntawm chromium (CR) thiab npib tsib (NI) muab cov kev txhim kho corrosion tsis kam, thaum molybdenum resistion, mo) txhim kho kev ua kom muaj kev npau taws.
(4) kev sib piv nrog lwm cov qib
SNCM431 vs . 30 crnimo8:
SNCM431 muaj cov pa roj carbon ntau dua (c) thiab npib tsib (ni)
30Crnimo8 (Din) yog qhov zoo rau kev hnyav {{{2} Lub luag haujlwm} Lub luag hauj lwm muaj zog (piv txwv li, cua tshuab hluav taws xob).
Cim npe nrov: SNCM431 JIS G4053 HARDENED STEEL, CHINA, tuam ntxhab, cov chaw muag khoom, Hoobkas