1. Lub zog siab thiab hardness
Carbon-Dominated Kev Ua Haujlwm: Cov ntsiab lus carbon (0. 1% ~ 1.2%) txiav txim siab ncaj qha thiab muaj zog. Quenching thiab kev kho tempering ua lub siab-hardness martensitic micenstructure.
Tsawg-carbon hom (piv txwv li, 410, 420): Hardness ncav cuag HRC 40 ~ 50, haum rau hnav-resistant Cheebtsam (piv txwv li, twj tso kua mis, li qub).
High-carbon hom (piv txwv li, 440c, zdp -189): Hardness ntau tshaj li HRC 60, zoo tagnrho rau high-end kev txiav tej twj high-endis pwm.
Ntxiv dag zog rau cov txheej txheem: Tiav lub zog ultraigh lub zog (tensile zog: 1800 ~ 2000 mpa) ntawm carbide nag lossis xws li, cr23C6) Thiab kev xiam oob qhab ntxiv dag zog.
2. Kev tswj hwm corrosion tsis kam
Chromium-raws li txheej: Cov ntsiab lus Chromium (12% ~ 18%) ua cov txheej txheem crbon oxide, tab sis cov pa roj av passivicity, tab sis cov pa hluav taws kub ua kom muaj kev txuag nyiaj ntau rau cov hlau tsis huv.
Me me corrosive ib puag ncig: Haum rau cov pa qhuav lossis dej khov (piv txwv li, 420 stainless hlau rau cutlery).
Qhov kev txwv tsis zoo ib puag ncig: Zam kev ntev ntev hauv Chlorides (Seasater) lossis cov kua qaub muaj zog. Cov Khaub Ncaws Tiv Thaiv (piv txwv li, cov roj chromium plating) lossis cov npoo qab yog txhim kho kom tsis kam.
3. Kev kho cua sov rhiab
Siab hardenability: Tag nrho Martensitic kev hloov pauv tau ua tiav los ntawm kev ua kom sai (roj / cua quenching), txawm tias hauv cov txheej txheem tuab (piv txwv li, turnine hniav).
Kev Kho Mob Tempering:
Tsawg-kub tempering (150 ~ 370 degree): Khaws cov hardness siab rau cov cuab yeej thiab bearings.
Kev Kub-Kub Kub (540 ~ 700 Degree): Txhim kho cov txheej txheem tawv rau cov txheej txheem (piv txwv li, cov ntaub ntawv tsav tsheb ciav hlau).
4. Magnetism
Khoom siv Ferromagnetic: Lub martensitic qauv sib nqus, ua rau nws haum rau cov khoom siv hluav taws xob (piv txwv li cov tsev nyob nyab xeeb, sensor. NCO TSEG: Magnetism yuav tsis muaj zog ntawm cov kub.
5. Machining Cov Cwj Pwm
Txias kev ua haujlwm cov nyom: Kev tawv hardness nce tawg kev pheej hmoo thaum lub sij hawm txias. Preheating lossis kub ua haujlwm (zam txim ntawm 800 ~ 1150 degree) feem ntau yuav tsum muaj.
Vuam nyuaj: Post-weld txias tawg tas yuav tsum:
Preheating (200 ~ 300 Degree)
Cov ntaub ntawv muab tub lim (piv txwv li, Aws E410 hluav taws xob)
Tom qab Weld qeeb cua txias lossis kev ntxhov siab npau taws
6. KUB KUB MUAJ TXUJ CI
Cov kev txwv kub siab: Lub sij hawm pabcuam kub ntev yuav tsum tsis pub tshaj 650 degree kom tsis txhob npau taws lossis oxidation (cov txheej txheem saum npoo av tau pom zoo).
Tsawg-kub brittleness: Qhov kev cuam tshuam nyuaj zuj zus ntau dua -50 degree, ua rau nws tsis haum rau ib puag ncig txias.
Cov Ntawv Thov Raug & Cov Khoom Sib Tw
| Ntiag tug | Cov Ntawv Thov | Cov qib qhia |
|---|---|---|
| UltraThog Hardness | Kev phais mob tuaj, cov cuab yeej precision | 440C, ZDP -189 |
| Hnav Tsis kam | BEARINGS, CHWJ / VALVE Cheebtsam | 420C, 440B |
| Nruab nrab corrosion + lub zog | Turbine yas, fasteners | 410, 416 |
| Biocompatibility | Orthopedic kev cog lus (tom qab kev hloov kho saum npoo) | 630 (17-4 pha pH) |
Cov kev txiav txim siab tseem ceeb
Cov khoom siv xaiv: Sib npaug hardness thiab corrosion tsis kam. High-carbon qhab nia (piv txwv li, 440c) yog qhov tsis haum rau lub sijhawm ntev.
Txheej Txheem Tswj: Kho kom muaj kev kho kom sov kub (quenching tus nqi, lub sijhawm npau taws (tseem ceeb heev kom tsis txhob muaj kev txhim kho corrosion lossis loj loj.
Martensitic Stainless Hlau muaj cov qauv "kev ua tau zoo" rau cov khoom siv khomob, thiab lwm yam kev lag luam los ntawm kev ua haujlwm kho mob, thiab raug nqi los ntawm kev ua haujlwm thiab cov txheej txheem ua kom zoo.