Dab tsi yog Hardness ntawm Sintered Hlau?
May 13, 2026| ⚙️ Cov ntsiab lus tseem ceeb cuam tshuam rau hardness ntawm Sintered hlau
1. Cov khoom muaj pes tsawg leeg
• Base hlau:Lub hardness ntawm hlau-raws li sintered hlau feem ntau nyob ntawm 250-850 HV, thaum tooj liab-raws li sintered hlau feem ntau nyob ib ncig ntawm 50-200 HBW. Stainless hlau-raws li sintered hlau tuaj yeem ua tiav qhov hardness ntawm 300-500 HV.
• Alloying cov ntsiab lus:Ntxiv cov khoom sib xyaw xws li npib tsib xee, molybdenum, thiab chromium tuaj yeem txhim kho hardness. Piv txwv li, qhov nyuaj ntawm npib tsib xee-muaj hlau-raws li sintered hlau tuaj yeem nce ntau dua 30%.
• Cov ntsiab lus carbon:Hauv cov hlau-raws li sintered hlau, cov ntsiab lus carbon nce ntawm 0.2% mus rau 0.8%, thiab qhov nyuaj tuaj yeem nce los ntawm 200HV mus rau saum 600HV.
2. Sintering txheej txheem
• Sintering kub:Feem ntau, qhov siab dua qhov kub ntawm sintering, qhov ntau dua qhov diffusion ntawm cov hlau atoms, qhov ceev dua, thiab qhov hardness ntau dua. Piv txwv li, lub hardness ntawm hlau -raws li cov hmoov sintered ntawm 1100℃yog 15%-20% siab tshaj qhov sintered ntawm 1000 degree.
• Soaking lub sij hawm:Tsim nyog ncua sij hawm soaking pab txhim kho qhov ceev, tab sis dhau ntawm ib qho kev txwv, kev loj hlob ntawm cov nplej yuav tshwm sim, uas tuaj yeem ua rau txo qis hauv hardness.
• Txias tus nqi:Qhov txias txias sai tuaj yeem cuam tshuam cov qoob loo loj hlob thiab ua rau cov txheej txheem zoo dua, yog li ua kom tawv tawv. Lub hardness ntawm sintered hlau kho nrog quenching tuaj yeem txhim kho ntau dua 40%.
3. Tshaj tawm -txoj kev thev naus laus zis
• Kev kho cua sov:Cov txheej txheem xws li quenching thiab tempering tuaj yeem txhim kho qhov hardness ntawm sintered hlau. Piv txwv li, lub hardness ntawm hlau -raws li sintered hlau tuaj yeem ncav cuag 600-800 HV tom qab quenching.
• Kev kho deg:Cov txheej txheem xws li carburizing thiab nitriding tuaj yeem ua rau muaj zog ntawm qhov tawv nqaij thaum tuav cov tub ntxhais hardness, ua tau raws li qhov yuav tsum tau ua ntawm qee yam kev ua haujlwm tshwj xeeb.
📊 Common hardness ranges ntawm sintered hlau
| Hom khoom | Hardness Range | Daim ntawv thov Scenario |
| Hlau-raws li sintered hlau | 250-850 HV | Cov yam ntxwv ntawm cov khoom xws li iav, camshafts, bearings, thiab lwm yam |
| Copper raws li sintered hlau | 50-200 HWB | Hnav cov khoom tiv thaiv xws li lub tes tsho ncej thiab cov sliders |
| Stainless hlau sintered hlau | 300-500 HV | Corrosion resistant qhov chaw |
| Hard alloy sintered hlau | 80-90 HRA | Cov cuab yeej txiav, pwm, thiab lwm yam |
Nrog rau kev nkag siab tob txog cov yam ntxwv ntawm ntau yam sintered hlau cov ntaub ntawv, peb tuaj yeem ua raws cov qauv ntawm cov khoom siv thiab cov txheej txheem sintering raws li koj qhov kev ua haujlwm, thiab kho. hmoov metallurgy sintered hlau qhov chawuas muaj ob qho tib si kev ua tau zoo thiab tus nqi zoo. Los ntawm kev tsim qauv ua ntej mus rau kev tsim khoom loj nyob rau theem tom ntej, peb muab ib qho -tshem cov kev pabcuam rau koj. Txais tos nug nrog cov qauv thiab kos duab.