Cov saw hlau yog ib qho tseem ceeb hauv ntau yam kev siv hauv kev lag luam thiab tshuab, suav nrog kev tsim tsheb, kev tsim khoom thiab kev ua liaj ua teb. Lawv siv los xa hluav taws xob thiab thauj cov ntaub ntawv kom zoo. Txawm li cas los xij, cov ntaub ntawv siv hauv cov saw hlau tuaj yeem muaj kev cuam tshuam loj rau ib puag ncig. Kev nkag siab txog kev cuam tshuam ib puag ncig ntawm cov ntaub ntawv saw hlau yog qhov tseem ceeb rau kev txiav txim siab txog kev siv thiab pov tseg.
Cov khoom siv feem ntau siv rau cov saw hlau yog hlau, hlau tsis xeb, thiab hlau carbon. Txij li thaum rho cov khoom siv raw mus rau cov txheej txheem tsim khoom thiab pov tseg zaum kawg, txhua yam khoom siv muaj nws qhov cuam tshuam rau ib puag ncig.
Hlau yog cov khoom siv dav tshaj plaws hauv cov saw hlau thiab feem ntau yog ua los ntawm cov hlau ore thiab thee. Kev rho tawm cov khoom siv raw no cuam tshuam nrog kev siv hluav taws xob ntau thiab kev cuam tshuam ib puag ncig. Cov txheej txheem ntawm kev smelting hlau ore los tsim hlau kuj tso tawm cov pa roj carbon dioxide thiab lwm yam pa roj av rau hauv huab cua, ua rau muaj kev hloov pauv huab cua. Tsis tas li ntawd, kev tsim hlau cuam tshuam nrog kev siv ntau yam tshuaj lom neeg thiab tsim cov khib nyiab uas tuaj yeem ua rau dej thiab av qias neeg.
Cov hlau tsis xeb yog cov hlau sib xyaw uas tiv taus xeb uas muaj chromium, nickel thiab lwm yam khoom. Txawm hais tias cov hlau tsis xeb muaj lub zog thiab lub neej ntev, kev rho tawm thiab kev ua cov khoom siv raw, tshwj xeeb tshaj yog chromium thiab nickel, tuaj yeem muaj kev cuam tshuam tsis zoo rau ib puag ncig. Kev khawb thiab kev ua kom huv ntawm cov hlau no tuaj yeem ua rau puas tsuaj rau qhov chaw nyob, kev puas tsuaj ntawm av thiab kev ua qias tuaj ntawm dej. Tsis tas li ntawd, kev tsim cov hlau tsis xeb xav tau kev siv zog ntau, ua rau muaj cov pa roj carbon thiab kev siv cov peev txheej tsawg.
Cov hlau carbon yog lwm yam khoom siv uas pom muaj nyob rau hauv cov saw hlau thiab feem ntau yog ua los ntawm hlau thiab carbon. Kev tsim cov hlau carbon muaj cov teeb meem ib puag ncig zoo ib yam li cov hlau ib txwm muaj, suav nrog kev khawb hlau thiab thee, thiab kev tso tawm cov pa roj av thaum lub sijhawm tsim khoom. Tsis tas li ntawd, cov pa roj carbon hauv cov hlau carbon ua rau nws yooj yim rau xeb, uas tuaj yeem ua rau hnav thiab hloov pauv ua ntej lub sijhawm, cuam tshuam ntxiv rau ib puag ncig.
Nyob rau xyoo tas los no, muaj kev txaus siab ntau ntxiv rau kev tshawb nrhiav lwm cov khoom siv rau cov saw hlau uas tuaj yeem txhim kho kev ua haujlwm ib puag ncig. Ib qho khoom siv zoo li no yog yas, uas muaj peev xwm txo qhov cuam tshuam rau ib puag ncig ntawm cov saw hlau. Cov saw hlau yas tuaj yeem ua los ntawm cov khoom siv rov ua dua tshiab, txo qhov xav tau cov khoom siv tshiab thiab xa cov khib nyiab los ntawm cov chaw pov tseg. Tsis tas li ntawd, cov saw hlau yas yog lub teeb yuag, tiv taus xeb, thiab xav tau lub zog tsawg dua los tsim dua li cov saw hlau.
Lwm txoj kev xaiv zoo yog kev siv cov khoom siv bio-based, xws li bioplastics, hauv kev tsim cov saw hlau roller. Bioplastics yog los ntawm cov khoom siv rov ua dua tshiab xws li pob kws hmoov txhuv nplej siab, qab zib cane lossis cellulose thiab yog lwm txoj hauv kev ruaj khov dua li cov yas ib txwm muaj. Kev tsim cov bioplastics feem ntau muaj cov pa roj carbon tsawg dua thiab muaj kev cuam tshuam me dua rau ib puag ncig dua li cov yas roj av.
Ntxiv mus, kev nce qib hauv cov ntaub ntawv sib xyaw xws li cov polymers carbon fiber reinforced muab lub peev xwm los txhim kho kev ua haujlwm ib puag ncig ntawm cov saw hlau. Cov ntaub ntawv no yog lub teeb yuag, ruaj khov thiab muaj qhov sib piv ntawm lub zog-rau-qhov hnyav, txo cov kev siv hluav taws xob thaum lub sijhawm ua haujlwm thiab txo qhov xav tau hloov pauv ntau zaus.
Ntxiv rau kev tshawb nrhiav lwm cov ntaub ntawv, kev tsim thiab kev saib xyuas ntawm cov saw hlau kuj tseem cuam tshuam rau nws qhov cuam tshuam rau ib puag ncig. Kev siv roj nplua nyeem thiab kev saib xyuas kom zoo tuaj yeem ua rau lub neej ua haujlwm ntawm cov saw hlau ntev dua, txo qhov zaus hloov pauv thiab qhov cuam tshuam rau ib puag ncig. Tsis tas li ntawd, kev tsim cov qauv saw hlau zoo dua thiab ruaj khov dua tuaj yeem pab txuag cov peev txheej thiab txo cov khib nyiab.
Thaum cov saw hlau siv tas lawm, kev pov tseg thiab kev siv dua tshiab kom zoo yog qhov tseem ceeb heev rau kev txo qhov cuam tshuam rau ib puag ncig. Kev siv cov saw hlau rov qab los pab txuag cov khoom siv ntuj tsim thiab txo cov zog uas yuav tsum tau siv los ua cov saw hlau tshiab. Ntxiv mus, kev siv cov yas thiab cov saw hlau uas siv los ua cov khoom siv bio-based tuaj yeem pab txhawb rau kev lag luam ncig, uas tso cai rau cov khoom siv rov siv dua thiab siv dua, yog li txo qhov kev cuam tshuam rau ib puag ncig.
Hauv kev xaus lus, cov ntaub ntawv siv rau hauv cov saw hlau muaj kev cuam tshuam loj heev rau ib puag ncig txij li kev rho tawm thiab kev tsim khoom mus rau kev pov tseg zaum kawg. Txawm hais tias cov ntaub ntawv ib txwm muaj xws li hlau thiab hlau tsis xeb tau ntev los ua cov ntaub ntawv xaiv rau kev tsim cov saw hlau, muaj qhov xav tau ntau ntxiv los tshawb nrhiav lwm cov ntaub ntawv uas tuaj yeem txhim kho kev ua tau zoo ib puag ncig. Los ntawm kev xav txog kev cuam tshuam ib puag ncig ntawm cov ntaub ntawv saw hlau thiab kev siv cov kev xaiv ruaj khov, cov lag luam tuaj yeem txo lawv cov cim ecological thiab pab txhawb rau yav tom ntej ntsuab dua.
Lub sijhawm tshaj tawm: Lub Xya Hli-19-2024