Kev paub yooj yim: Hlau Hlau thiab Hlau hlau
Hlau hlau feem ntau ua los ntawm cov hlau, ib qho tseem mos thiab cov hlau muag heev. Nws yog lub npe hu rau nws txoj kev ua tau zoo thiab yooj yim ntawm kev ua, ua rau nws haum rau ntau yam siv, suav nrog kev ua kom muaj kev kub ntxhov thiab kho kom zoo nkauj. Txawm li cas los xij, cov hlau xaim hlau yog nquag mus xeb thiab xeb, uas txwv nws lub zog thiab lub neej nyob rau ib puag ncig.
Ntawm qhov tod tes, steel hlau yog ib qho alloy feem ntau tsim ntawm cov hlau thiab carbon. Qhov sib ntxiv ntawm cov pa roj carbon txhim kho lub zog, hardness, thiab tshaj tag nrho cov kav dej ntawm cov hlau xaim. Raws li nws cov ntsiab lus carbon, hlau xaim tuaj yeem yog cais ntxiv rau ntau hom, nrog cov pa roj carbon hlau yog cov feem ntau siv. Hom hlau no tshwj xeeb rau kev lag luam ntau tensile lub zog thiab hnav tsis kam, xws li ntsia hlau.
Carbon Hlau Hlau: Thawj qhov kev xaiv rau cov ntsia hlau ua
Hauv cov ntsia hlau tsim kev lag luam, carbon hlau yog cov khoom uas nyiam tshaj plaws vim nws cov khoom siv zoo tshaj. Carbon Hlau Hlau Sib txuas lub zog thiab hloov tau yooj yim, ua kom cov tawv nqaij sab nraud uas tsis muaj khoov lossis tawg. Tsis tas li ntawd, cov hlau xaim hlau yog tau yooj yim rau cov duab thiab tuaj yeem ua rau hauv ntau hom ntsia hlau, los ntawm cov ntsia hlau tshwj xeeb rau cov fasteners tshwj xeeb.
Cov txheej txheem ntawm ua rau tes los ntawm carbon hlau xaim muaj ntau kauj ruam, suav nrog kev txiav, thiab ua tiav. Ib kauj ruam tseem ceeb yog qhov annealing ntawm cov hlau. Annealing yog lub tshav kub kho txheej txheem uas cuam tshuam nrog cua sov cov hlau xaim rau ib qho kub thiab txias thiab maj mam txias nws. Cov txheej txheem no pab tshem tawm sab hauv kev ntxhov siab, txhim kho ductility, thiab txhim kho kom tau tag nrho lub tshuab hluav taws xob tag nrho ntawm cov hlau. Annealed Carbon Hlau yog qhov tseem ceeb rau tus ntsia hlau tsim vim tias nws tau ua tiav cov duab thiab txo qhov kev pheej hmoo ntawm kev tawg thaum lub sijhawm tsim khoom.
Qhov tseem ceeb ntawm annealing hauv steel hlau ntau lawm
Annealing tsis yog tsuas yog qhov tseem ceeb rau kev txhim kho cov pa roj carbon hlau, tab sis nws tseem ua lub luag haujlwm tseem ceeb hauv kev paub qhov txawv carbon hlau los ntawm hlau hlau. Thaum hlau hlau yooj yim rau cov txheej txheem, nws lub zog thiab tawv yog nyob deb dua rau cov hlau xaim hlau. Annealing tuaj yeem txhim kho kev ua tau zoo ntawm cov hlau xaim, ua rau nws haum rau cov ntawv thov ntsia hlau.
Tsis tas li ntawd, cov txheej txheem anealing txhim kho cov corrosion tsis kam ntawm Carbon Hlau Hlau. Los tswj cov microstructure ntawm cov xaim hluav taws xob ntawm cov xaim, cov chaw tsim khoom tuaj yeem tsim cov khoom lag luam uas tsis tshua muaj xeb, yog li txuas ntxiv rau lub neej ntawm cov ntsia hlau ua los ntawm nws. Qhov no yog qhov tshwj xeeb tshaj yog hauv kev tsim kho thiab sab nraum zoov cov ntawv thov, qhov twg raug rau cov chaw noo noo yog qhov tsis muaj peev xwm.
Hauv kev xaus
Hauv cov ntsiab lus, qhov sib txawv ntawm hlau hlau thiab hlau xaim yog qhov tseem ceeb, tshwj xeeb tshaj yog hauv cov ntawv thov kev lag luam xws li ntsia thawv tsim. Carbon Hlau Hlau Muaj lub zog siab dua thiab lub siab ntev, ua rau nws xaiv qhov xav tau zoo tshaj plaws rau cov tuam ntxhab. Annealing ntxiv ua kom zoo dua cov khoom ntawm cov roj carbon hlau xaim, ua rau nws cov khoom siv zoo rau kev tsim cov siab ntawm nrog ntau yam kev mob ib puag ncig. Nkag siab cov kev sib txawv no tsis pab cov tuam txhab xaiv cov khoom tsim nyog tab sis kuj ua kom cov neeg siv khoom tau txais cov khoom uas tau raws li lawv qhov kev xav tau.
