Cov saw hlau yog ib qho tseem ceeb hauv ntau yam kev siv hauv kev lag luam, suav nrog kev tsim khoom, kev ua liaj ua teb thiab kev siv tsheb. Tsim los kom xa hluav taws xob tau zoo thiab ntseeg tau, cov saw hlau no tseem ceeb rau kev ua haujlwm zoo ntawm cov khoom siv thiab tshuab. Txawm li cas los xij, txhawm rau kom ntseeg tau tias nws siv tau ntev thiab ua tau zoo, cov saw hlau yuav tsum tau ua kom sov kom ua rau lawv ruaj khov thiab muaj zog tshaj plaws.
Kev kho cua sov yog ib kauj ruam tseem ceeb hauv kev tsim cov saw hlau vim nws tuaj yeem txhim kho cov khoom siv kho tshuab ntawm cov saw hlau nrog rau nws txoj kev hnav thiab kev qaug zog. Los ntawm kev tswj cov saw hlau kom muaj kev tswj cua sov thiab txias, cov khoom siv microstructure tuaj yeem hloov pauv kom txhim kho qhov nyuaj, kev tawv thiab kev ua tau zoo tag nrho. Tsab xov xwm no yuav saib tob txog qhov tseem ceeb ntawm kev kho cua sov hauv kev ua kom cov saw hlau ruaj khov thiab ntau yam txheej txheem koom nrog hauv cov txheej txheem.
Lub hom phiaj tseem ceeb ntawm kev kho cua sov rau cov saw hlau yog kom ua tiav qhov sib npaug zoo ntawm cov khoom siv tawv thiab tawv. Qhov no ua tiav los ntawm kev tswj hwm cua sov thiab txias kom zoo uas tsim los hloov cov qauv me me ntawm qib atomic. Cov txheej txheem kho cua sov feem ntau rau cov saw hlau suav nrog quenching thiab tempering, carburizing thiab induction hardening.
Kev ua kom kub thiab ua kom sov yog ib txoj kev kho cua sov uas siv dav rau cov saw hlau. Nws ua kom cov saw hlau kub mus rau qhov kub tshwj xeeb thiab tom qab ntawd ua kom txias sai sai hauv cov khoom siv ua kom kub xws li roj lossis dej. Qhov txias sai no tsim cov qauv khov kho uas ua rau qhov tawv ntawm cov saw hlau thiab tiv taus kev hnav. Tom qab ntawd cov saw hlau raug ua kom sov los ntawm kev rov ua kom sov mus rau qhov kub qis dua, uas ua rau cov saw hlau tawv thiab txo qhov kev ntxhov siab sab hauv, yog li ua rau nws ruaj khov tag nrho.
Kev siv carburizing yog lwm txoj kev kho cua sov zoo rau cov saw hlau, tshwj xeeb tshaj yog rau cov ntawv thov uas xav tau qhov nyuaj ntawm qhov chaw thiab kev tiv thaiv kev hnav. Thaum lub sijhawm ua carburizing, cov saw hlau raug rau huab cua nplua nuj carbon ntawm qhov kub siab, tso cai rau cov pa roj carbon kom kis mus rau hauv txheej txheej ntawm cov khoom. Qhov no ua rau lub plhaub sab nraud tawv nrog lub hauv paus ruaj khov, muab kev tiv thaiv kev hnav thiab kev qaug zog zoo heev thaum tswj hwm lub zog tag nrho ntawm cov saw hlau.
Kev ua kom tawv induction yog ib txoj kev kho cua sov tshwj xeeb uas feem ntau siv los xaiv cov cheeb tsam tshwj xeeb ntawm cov saw hlau, xws li cov nplaim thauj khoom thiab cov ntsiab lus sib cuag. Hauv cov txheej txheem no, kev ua kom sov induction zaus siab yog siv los ua kom sov sai sai rau thaj chaw uas xav tau, uas tom qab ntawd raug tua kom ua tiav qhov tawv xav tau. Kev ua kom tawv induction tso cai rau kev tswj hwm qhov tob ntawm kev tua thiab txo qhov deformation, ua rau nws zoo tagnrho rau kev txhim kho qhov ruaj khov ntawm cov khoom tseem ceeb hauv cov saw hlau.
Ntxiv rau cov txheej txheem kho cua sov no, kev xaiv cov khoom siv ua lub luag haujlwm tseem ceeb hauv kev ua kom cov saw hlau ruaj khov. Cov hlau sib xyaw zoo, xws li 4140, 4340 thiab 8620, feem ntau siv los tsim cov saw hlau vim lawv qhov tawv thiab muaj zog zoo heev. Cov ntaub ntawv no zoo rau cov txheej txheem kho cua sov thiab muaj peev xwm ua tiav cov khoom siv kho tshuab xav tau, uas yog qhov tseem ceeb rau kev tiv taus cov xwm txheej ua haujlwm hnyav uas cov saw hlau ntsib.
Kev siv cua sov los kho kom cov saw hlau ua haujlwm tau ntev tshaj plaws tsis yog tsuas yog ua rau nws siv tau ntev xwb, tab sis kuj pab txhim kho kev ua haujlwm zoo thiab kev ntseeg siab ntawm cov tshuab uas siv. Cov saw hlau uas kho cua sov kom zoo muab kev tiv thaiv kev hnav, kev qaug zog thiab kev xeb zoo dua, txo qhov yuav tsum tau saib xyuas thiab lub sijhawm tsis ua haujlwm thaum ua kom muaj kev ua haujlwm zoo hauv cov chaw ua haujlwm nyuaj.
Hauv kev xaus lus, kev kho cua sov yog ib qho tseem ceeb hauv kev ua kom cov saw hlau ruaj khov. Los ntawm kev siv cov txheej txheem kho cua sov tshwj xeeb xws li tempering, carburizing, thiab induction quenching, cov khoom siv kho tshuab ntawm cov saw hlau tuaj yeem txhim kho tau zoo heev, yog li txhim kho qhov nyuaj, tawv, thiab hnav tsis kam. Ua ke nrog kev siv cov hlau alloy zoo, kev kho cua sov ua lub luag haujlwm tseem ceeb hauv kev ua kom lub neej kev pabcuam thiab kev ntseeg siab ntawm cov saw hlau hauv ntau yam kev siv hauv kev lag luam. Yog li ntawd, cov chaw tsim khoom thiab cov neeg siv kawg yuav tsum xub siv cov txheej txheem kho cua sov kom zoo tshaj plaws los ua kom zoo tshaj plaws thiab kev ruaj khov ntawm cov saw hlau hauv lawv cov tshuab thiab khoom siv.
Lub sijhawm tshaj tawm: Lub Xya Hli-22-2024