Cov ntawv xov xwm crankshaft (suav nrog cov ntawv xov xwm tseem ceeb thiab cov ntawv xov xwm txuas) yog cov khoom tseem ceeb rau kev xa lub zog cav. Raws li cov kev cai ntawm lub teb chaws tus qauv GB / T 24595-2020, qhov nyuaj ntawm cov hlau siv rau crankshafts yuav tsum tau tswj hwm nruj tom qab quenching thiab tempering. Ob qho tib si hauv tsev thiab thoob ntiaj teb kev lag luam tsheb muaj cov qauv yuav tsum tau ua kom meej rau qhov nyuaj ntawm crankshaft journals, thiab kev kuaj qhov nyuaj yog ib qho txheej txheem tseem ceeb ua ntej cov khoom tawm hauv lub Hoobkas.
Raws li GB / T 24595-2020 Cov Hlau Tuav rau Tsheb Crankshafts thiab Camshafts, qhov nyuaj ntawm cov ntawv xov xwm crankshaft yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm HB 220-280 tom qab quenching thiab tempering.
Tus qauv ASTM A1085 (muab los ntawm American Society for Testing and Materials, ASTM) hais tias qhov nyuaj ntawm cov ntawv xov xwm txuas rau cov neeg caij tsheb crankshafts yuav tsum yog ≥ HRC 28 (sib raug rau HB 270).
Txawm yog los ntawm sab kev tsim khoom hauv kev zam cov nqi rov ua dua thiab tiv thaiv lub koob npe zoo, sab neeg siv hauv kev tiv thaiv lub cav luv luv thiab kev pheej hmoo ntawm kev ua tsis tiav, lossis sab tom qab muag hauv kev zam kev raug mob kev nyab xeeb, nws yog qhov tseem ceeb kom txwv tsis pub cov khoom tsis zoo nkag mus rau hauv kev ua lag luam thiab ua qhov kev sim qhov nyuaj ntawm lub crankshaft raws li cov qauv.
Lub Rockwell hardness tester tshwj xeeb rau crankshafts tsim los ntawm peb lub tuam txhab ua tiav cov haujlwm tsis siv neeg xws li kev txav mus los ntawm lub crankshaft workbench, kev sim, thiab kev xa cov ntaub ntawv. Nws tuaj yeem ua tiav Rockwell hardness test (piv txwv li, HRC) ntawm cov txheej tawv ntawm ntau qhov ntawm crankshaft.
Nws siv lub kaw lus tswj hwm hluav taws xob kaw rau kev thauj khoom thiab kev sim, lub tshuab sim no yog ua tiav tag nrho nrog ib lub pob (mus cuag cov khoom ua haujlwm, thov kev thauj khoom, tswj kev thauj khoom, nyeem ntawv, thiab tso tawm cov khoom ua haujlwm yog ua tiav, tshem tawm tib neeg qhov yuam kev).
Lub kaw lus clamping ntawm lub crankshaft muab kev txav mus los pem hauv ntej thiab rov qab yam tsis siv neeg thiab siv tes, nrog rau kev xaiv sab laug, sab xis, thiab nce thiab nqis, uas tso cai rau kev ntsuas qhov chaw ntawm lub crankshaft.
Ib qho xauv qhov chaw crankshaft xaiv tau muab kev yooj yim xauv nws tus kheej, tshem tawm qhov kev pheej hmoo ntawm kev poob ntawm workpiece thaum lub sijhawm ntsuas.
Lub sijhawm tshaj tawm: Lub Kaum Hli-13-2025
