Kev kho cua sov yog qhov tseem ceeb tshaj plaws hauv kev tsim cov ntsia hlau.
Thaum cov hlau ua, lub taub hau txias, xov dov, thiab electroplating tag nrho cuam tshuam rau qhov kawg ntawm cov khoom zoo, kev kho cua sov ncaj qha txiav txim siab cov ntsia hlau cov khoom siv thiab kev pabcuam kev nyab xeeb. Nws yog cov txheej txheem tseem ceeb kom ntseeg tau tias siab - lub zog screws (xws li qib 8.8 thiab siab dua) muaj cov hardness txaus, toughness, tensile zog, thiab qaug zog. Yog tias kev kho cua sov ua tsis zoo, txawm tias muaj cov txheej txheem pib zoo tag nrho, cov khoom tiav yuav tseem tawg, ua tsis tiav, lossis ua rau muaj kev nyab xeeb thaum siv.
Kev sib piv ntawm lub luag haujlwm thiab qhov tseem ceeb ntawm txhua qhov txheej txheem:
Kev Siv Hlau: Muab cov khoom tsim nyog rau kev ua haujlwm tom ntej, tsom mus rau tshem tawm oxide nplai thiab txhim kho machinability. Kev ua tsis zoo tuaj yeem ua rau pwm hnav lossis tawg, tab sis tuaj yeem kho tau los ntawm kev rov ua dua.
Lub taub hau txias: Txiav txim siab qhov tseeb geometric ntawm cov ntsia hlau taub hau thiab shank, cuam tshuam rau kev siv cov khoom siv thiab pib lub zog. Nws qhov zoo dua yog nyob rau hauv kev ua haujlwm hardening kom muaj zog, tab sis nws qhov cuam tshuam rau qhov kawg tag nrho kev ua tau zoo yog txwv.
Xov dov (xov dov) cov ntaub ntawv xov los ntawm cov yas deformation, nce xov zog los ntawm 10% -30% thiab txuas lub neej qaug zog ntau dua 50%. Txawm hais tias tseem ceeb heev, nws tseem nyob ntawm cov khoom ntawm cov khoom siv hauv paus.
Kev kho cua sov (qhov tseem ceeb tshaj)
Lub hom phiaj: kom sib npaug hardness thiab toughness, tiv thaiv brittle puas.
Cov txheej txheem tseem ceeb: quenching + Tempering
Cov yam ntxwv cuam tshuam: Cov khoom siv raw muaj pes tsawg leeg, cua sov kub, txias npaum li cas, tswj kev ntxhov siab seem
Kev pheej hmoo yuav tshwm sim: Cov teeb meem xws li overheating, decarburization, thiab quenching tawg yuav ncaj qha ua rau batch scrapping lossis kev pabcuam tsis ua haujlwm.
Electroplating feem ntau muab kev tiv thaiv corrosion thiab ua kom zoo nkauj. Thaum nws cuam tshuam txog kev ua haujlwm ntev, nws tsis hloov lub hau ntswj load-cov kabmob muaj peev xwm.
