Ua cov khoom tseem ceeb, lub tog raj kheej lub cav thiab lub taub hau lub tog raj kheej yuav tsum tiv taus qhov kub thiab txias siab, xyuas kom meej tias muaj kev sib khi zoo, thiab muab kev sib dhos zoo. Lawv cov ntsuas kev siv tshuab, suav nrog kev sim qhov nyuaj thiab kev sim qhov tseeb ntawm qhov ntev, txhua yam yuav tsum tau tswj hwm nruj siv cov khoom siv raug. Kev sim qhov nyuaj ntawm lub tog raj kheej thiab lub taub hau feem ntau yog siv los ntsuas cov khoom siv kho tshuab ntawm cov ntaub ntawv, xyuas kom meej tias lawv ua tau raws li cov qauv tsim.
Cov cuab yeej ntsuas qhov nyuaj Rockwell yog qhov tsim nyog rau kev tshuaj xyuas qhov nyuaj ntawm cov chaw loj, tiaj tus xws li lub dav hlau thaiv lub tog raj kheej (piv txwv li, lub taub hau sib txuas ntawm lub tog raj kheej, hauv qab ntawm lub tog raj kheej) thiab lub ntsej muag qhov kawg ntawm lub crankshaft. Rau kev tshuaj xyuas zoo hauv online hauv cov kab ntau lawm, cov kev cai kuaj tshwj xeeb tuaj yeem muab tau. Cov cuab yeej ntsuas qhov nyuaj Rockwell tsis siv neeg tag nrho tuaj yeem koom ua ke nrog cov kab ntau lawm kom ua tiav kev ua haujlwm tsis muaj neeg tsav tsheb, muaj kev ua haujlwm zoo thiab cov txiaj ntsig ruaj khov. Txoj kev kuaj no yog qhov siv ntau tshaj plaws hauv kev tsim khoom loj ntawm cov khoom siv tsheb thiab ua raws li ISO 6508 thiab ASTM E18 cov qauv.
Cov cuab yeej ntsuas qhov nyuaj ntawm Brinell siv tau rau kev ntsuas qhov nyuaj ntawm cov khoom seem ntawm lub tog raj kheej thiab cov khoom uas muaj phab ntsa tuab (piv txwv li, cov phab ntsa sab nraud ntawm lub tog raj kheej), thiab tshwj xeeb tshaj yog rau kev ntsuam xyuas qhov zoo ntawm kev ua cov khoom seem thiab kev kho cua sov ntawm cov khoom seem ntawm cov khoom seem ntawm lub tog raj kheej. Yuav tsum nco ntsoov tias kev ntsuas Brinell tawm cov qhov loj, yog li nws yuav tsum tsis txhob ua rau cov khoom puas yooj yim xws li cov khoom seem sab hauv ntawm phab ntsa ntawm lub tog raj kheej thiab cov khoom seem uas raug tshuab ua kom raug.
Cov Vickers hardness testers yog tsim rau kev sim qhov nyuaj ntawm cov khoom nyias-phab ntsa ntawm cov txhuas alloy lub tog raj kheej blocks, lub tog raj kheej liner sab hauv (kom tsis txhob ua rau puas tsuaj rau cov nplaim sealing), nrog rau kev sim qhov nyuaj ntawm cov txheej kho cua sov thiab cov txheej txheej (piv txwv li, cov txheej nitrided, cov txheej quenched) ntawm cov nplaim lub tog raj kheej block. Txoj kev sim no ua tau raws li qhov xav tau kev sim precision ntawm aerospace thiab high-end automotive engines, thiab ua raws li ISO 6507 thiab ASTM E92 cov qauv.
Raws li cov thooj voos kheej kheej thiab cov taub hau thooj voos kheej kheej ua los ntawm cov ntaub ntawv sib txawv, cov nplai tawv hauv qab no tuaj yeem siv tau:
| Cheebtsam | Cov Khoom Siv Sib Xws | Qhov Hardness Reference Range (HB/HV/HRC) | Lub Hom Phiaj Xeem Tseem Ceeb |
| Cam khwb cia hlau lub tog raj kheej thaiv | HT250/HT300 (Grey Cast Iron), Vermicular Graphite Iron | 180-240HB20-28HRC | Xyuas kom tsis txhob hnav thiab tsis yooj yim deformation |
| Aluminium Alloy Lub Tog Raj Kheej Thaiv | A356 + T6, AlSi11Cu2Mg | 85-130 HB90-140 HV 15-25 HRC | Lub zog sib npaug thiab kev siv tshuab tau zoo |
| Lub Taub Hau Lub Tog Raj Kheej Hlau Cam Khwb Cia | HT200/HT250, Hlau Ductile | 170-220 HB18-26 HRC | Tiv taus qhov kub siab thiab xyuas kom meej tias qhov chaw sealing nruj |
| Lub Taub Hau Kheej Kheej Aluminium Alloy | A356 + T7, AlSi12Cu1Mg1Ni | 75-110 HB80-120 HV 12-20 HRC | Sib npaug ntawm cov khoom sib dua, kev tso cua sov thiab lub zog ntawm cov qauv |
Rau ntau yam kev xav tau ntawm kev sim ntawm lub cav lub tog raj kheej, Laizhou Laihua tuaj yeem muab cov kev daws teeb meem raws li cov khoom tshwj xeeb. Qhov no suav nrog cov qauv txheem, cov qauv tshwj xeeb ntawm tag nrho cov Rockwell, Brinell, thiab Vickers hardness testers, nrog rau kev tsim cov khoom siv tshwj xeeb uas tsim rau cov khoom - txhua yam tsom mus rau kev txhim kho kev ua tau zoo ntawm kev sim thiab kev ntsuas qhov tseeb.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-04-2025
