Kev ceev faj rau tig tooj liab screws
Thaum tig cov ntsia hlau tooj liab, nws yog ib qho tsim nyog yuav tsum paub tias cov ntsiab lus tooj liab ntawm cov tooj liab ntshiab nyob rau hauv ib txwm muaj yog 99.5 feem pua, thiab cov tawv tawv ntawm cov ntshiab tooj liab nyob rau hauv annealing feem ntau yog 35-45HB. Txhawm rau kom ntseeg tau tias kev ua haujlwm zoo ntawm cov ntsia hlau tooj liab, cov khoom hauv qab no yuav tsum raug sau tseg thaum ua cov ntsia hlau tooj liab.
Thaum tig cov ntsia hlau tooj liab, nws yog ib qho tsim nyog yuav tsum paub tias cov ntsiab lus tooj liab ntawm cov tooj liab ntshiab nyob rau hauv ib txwm muaj yog 99.5 feem pua, thiab cov tawv tawv ntawm cov ntshiab tooj liab nyob rau hauv annealing feem ntau yog 35-45HB. Txhawm rau kom ntseeg tau tias kev ua haujlwm zoo ntawm cov ntsia hlau tooj liab, cov khoom hauv qab no yuav tsum raug sau tseg thaum ua cov ntsia hlau tooj liab.
1. Nyob rau hauv cov txheej txheem ntawm machining, chips tej zaum yuav lo rau lub txiav ntug, cuam tshuam qhov zoo ntawm tooj liab ntsia hlau machining thiab lub neej kev pab cuam ntawm lub cuab tam.
2. Cov ntsia hlau tooj liab nto yog ib qho yooj yim los tsim cov dej zoo li waveform thiab suab nrov.
3. Lub expansion coefficient ntawm ntshiab tooj liab yog loj. Thaum txiav, deformation yuav tshwm sim vim qhov kub thiab txias, yog li nws yog ib qho nyuaj rau tus tswv qhov loj thiab qhov tseeb ntawm tooj liab ntsia hlau ua.
4. Yog hais tias cov khoom tooj liab muaj cov khoom txiav dawb xws li leej faj, lub tshuab ua haujlwm ntawm cov tooj liab yuav raug cuam tshuam. Lub toughness thiab plasticity ntawm tooj liab qhov chaw yog qhov loj, thiab deformation generated thaum txiav kuj loj. Yog li ntawd, lub cutter yuav tsum tau ntse, thiaj li hais tias cov txiav yuav smoother, qhov kub generated thaum txiav yuav me me, thiab deformation ntawm daim ntawv tooj liab yuav me dua.
Yog tias cov hmoov txhuas ntxiv rau tooj liab, machinability thiab txiav ceev yuav zoo dua. Muaj ntau ntau hom bronze nrog tsis zoo anisotropy, tab sis lub machinability ntawm txhuas bronze yog zoo heev.
Nyob rau hauv kev ua ntawm tooj liab qhov chaw, qhov ceev ntawm kev txiav ceev yog, qhov me me txiav quab yuam yog, yog li deformation ntawm tooj liab qhov chaw nyob rau hauv cov txheej txheem yuav kuj me me. Qhov saum npoo zoo ntawm tooj liab alloy yog qhov zoo heev, yog li tsis tas yuav tsum tau ua tiav ntxiv rau theem tom ntej. Qhov ceev ntawm kev txiav ceev yog, qhov zoo dua qhov zoo ntawm cov ntsia hlau tooj liab yog.