Feem ntau, qhov chaw ua haujlwm lub caij nplooj ntoos hlav yuav tsum nqa yam kev tshawb fawb no. Cov laj thawj nraub qaum feem ntau siv cov dej txias thaum caij nplooj ntoos hlav steel hlau coils. Qhov zoo dua yog hais tias tus nqi yog tsawg, lub hooks yog yooj yim rau daim ntawv, thiab hooks yuav tsum tsis tau generated thaum siv. Qaug zog tawg, qhov tsis zoo yog qhov tsis muaj peev xwm ua kom tsis muaj zog. Nrog rau kev paub txog science thiab technology, ntau tus neeg kho tshuab yuav tsum muaj siab thiab siab dua qub mus rau lub zog ntawm qhov nro springs, yuam cov caij nplooj ntoo hlav siv roj quenched thiab tempered steel xov hlau nrog zoo dua qub mus so. Txawm li cas los, cov roj quenched thiab tempered caij nplooj ntoos hlav steel hlau muaj pluag torsion zog thiab yog yooj yim tawg ntawm lub bending ntawm sib ntsib. Tus sau kev tshawb fawb ntawm txoj hlua khoov thaum lub sij hawm ua lub caij nrawm los ntawm cov roj quenching thiab tempering caij nplooj ntoos hlav steel hlau.
Kev cog qoob loo
Ua ntej, kuaj cov ntaub ntawv thiab cov hau kev
Qhov kev ntsuam xyuas siv φ5.5 hli 60Si2MnA kub kub xaim hlau rods tom qab pickling, phosphating, daim duab, roj quenching thiab tempering kub kho tau ntawm φ3.3 hli roj quenched thiab tempered caij nplooj ntoos hlav steel hlau khoom. Lub zog tensile ntawm 1 750 ~ 1 780 MPa, thaj tsam ntawm qhov kev sib tw ntawm 45% mus rau 51%, rov qab 13 txog 15 zaug. Cov qauv hauv metallographic yog tempered troostite uas tsis muaj decarburization ntawm qhov chaw.
Qhov ob, qhov kev xeem tau
1. Caij nplooj ntoos hlav coiling system
Ib qho tag nrho ntawm 90,186 nro springs tau ntsuam xyuas. Ntawm lawv, 90,021 ib txwm muaj zog nrawm tshaj plaws pom tau tias yuav tsum ua raws li tus qauv tsim nyog. Tsuas 98 lub tsho pom muaj tawg thiab 67 raug tawg. Nws tau pom tias tawg thiab kab nrib pleb hauv qhov nro springs tau tsim ntawm cov khoov ntawm cov hooks.
2. Txhaum kev ntsuam xyuas
Puas tsuaj macroscopic tsos
Lub cev zoo ntawm qhov nro qoj rub tawm qhov chaw sib tsoo, muaj cov cuab yeej khau khiab, tsaus nti gray xim, thiab khawb ntawm qhov khoov ntawm qhov sib txuas nos yog obviously distorted, uas qhia tau hais tias muaj ib qho chaw hauv zos torsional deformation nyob rau hauv lub xaim. Cov tsos ntawm qhov tawg ntsa ntawm qhov chaw ntawm lub tsho ntawm lub nro tsho thiab cov nplaim sab hauv ntawm qhov chaw tawg ntawm qhov laj thawj ntawm lub nrawm thaum pom tau hais tias muaj ib qho hlua khov ua los ntawm khawb ntawm sab hauv lub caij nplooj ntoo hlav , thiab muaj ntau ntau cov kab nrib pleb ntawm cov xim dawb.