Lub crankshaft yog lub ntsiab rotating ib feem ntawm lub cav thiab qhov tseem ceeb tshaj plaws ntawm lub cav. Raws li kev quab yuam thiab thauj khoom nws dais, lub crankshaft yuav tsum muaj lub zog txaus thiab rigidity, thiab qhov chaw ntawm cov ntawv xov xwm yuav tsum hnav-tiv taus, ua haujlwm sib npaug, thiab muaj kev sib npaug zoo.

Kev kho nitriding

Vim yog qhov tseem ceeb ntawm lub crankshaft, kev kho cua sov ntawm lub crankshaft muaj kev cai nruj heev rau deformation. Rau loj-tsim crankshafts, ion nitriding tshav kub kho feem ntau yog siv los txhim kho cov khoom zoo. Rau cov pa roj carbon steel lossis cam khwb cia hlau lossis cov hlau tsis tshua muaj hlau, tib neeg feem ntau siv ion soft nitriding (tsawg kub carbon, nitrocarburizing) technology. Ntau qhov kev coj ua tau pom tias qhov nyuaj thiab nkag mus ntawm nitrided txheej muaj kev sib raug zoo nrog qhov kub thiab txias, lub sijhawm thiab concentration. Kev tswj qhov kub thiab txias ntawm ion soft nitriding yuav tsum siab tshaj 540 ℃ thiab qis dua qhov kub ntawm kev laus, thiab cov cua kub tsim nyog yuav tsum raug xaiv raws li cov kev cai tshwj xeeb ntawm cov khoom.

Kev kho cua sov ion nitriding muaj me me deformation, uas tuaj yeem ua kom muaj qhov deformation zoo. Cov txheej dawb thiab ci ntsa iab thiab txheej txheej permeated yog qhov sib xws, lub thickness ntawm cov txheej permeated yog tswj tau, lub voj voog kho yog luv, thiab kev ua haujlwm siab. Tam sim no, ion nitriding rauv ua los ntawm peb lub tuam txhab tau ua tiav cov khoom loj ntawm crankshafts, thiab cov nitriding zoo siab, uas tau txais zoo los ntawm cov neeg siv khoom.