Cov yam ntxwv ntawm kev vuam ntawm cov khoom siv hlau feem ntau [Carbon steel]

Kev vuam laser yog qhov tsim nyog rau kev vuam ntau yam khoom siv. Lub zog ceev ntawm laser thiab kev vuam ceev ua rau qhov vuam laser thiab thaj chaw cuam tshuam los ntawm cua sov me me heev. Cov tshuaj lom neeg ntawm qhov vuam tuaj yeem hloov kho raws li qhov xav tau sib txawv ntawm cov qauv vuam, thiab kev ua tau zoo tshaj plaws ntawm kev vuam tuaj yeem tau txais los ntawm kev tswj hwm cov xwm txheej vuam.

Cov hlau carbon

Cov hlau carbon tsawg thiab cov hlau alloy tsawg muaj peev xwm weld zoo, tab sis thaum siv laser welding, cov ntsiab lus carbon ntawm cov khoom (carbon sib npaug C) yuav tsum tsis txhob siab tshaj 0.25%.

Cov mis xam ntawm cov pa roj carbon sib npaug:

C = C% + Mn / 6% + Ni / 15% + Cr / 13% + Cu / 13% + Mo / 4%

Rau cov ntaub ntawv uas muaj cov pa roj carbon sib npaug ntau dua 0.3%, qhov sib txawv ntawm qhov vuam txias yuav nce ntxiv. Xav txog qee qhov kev ntswj ntawm qhov vuam hauv qhov tsim qauv yog qhov zoo rau kev txo qhov kev ntxhov siab seem thiab qhov sib txawv ntawm qhov sib txawv hauv qhov vuam thiab thaj chaw cuam tshuam los ntawm cua sov. Thaum cov ntaub ntawv uas muaj cov pa roj carbon sib npaug ntau dua 0.3% thiab cov ntaub ntawv uas muaj cov pa roj carbon sib npaug tsawg dua 0.3% raug vuam ua ke, qhov kev vuam bias yog qhov zoo rau kev txwv qhov kev hloov pauv martensite thiab txo qhov tsim ntawm cov kab nrib pleb. Thaum cov pa roj carbon sib npaug ntawm cov ntaub ntawv ntau dua 0.3%, kev txo qhov ceev ntawm kev quenching kuj tseem tuaj yeem txo qhov sib txawv ntawm qhov sib txawv.

Cov hlau galvanized, vim tias qhov kub ntawm cov zinc (903 ℃) qis dua qhov kub ntawm cov hlau yaj (1535 ℃), cov zinc evaporation hauv cov txheej txheem vuam ua rau muaj qhov loj hauv qhov vuam, yog li nws nyuaj rau siv laser vuam, tshwj xeeb tshaj yog nkag mus rau hauv vuam. Tam sim no muaj kev sim los teeb tsa 0.1 hli qhov sib txawv ntawm cov khoom siv sab saud thiab qis kom tso cov zinc vapor tawm ntawm qhov sib txawv. Tab sis nws nyuaj rau kev ua haujlwm qhov kev tshem tawm hauv kev tsim khoom tiag tiag.

Cov ntsiab lus ntawm sulfur thiab phosphorus muaj qee yam cuam tshuam rau qhov tawg ntawm vuam. Cov hlau uas muaj sulfur ntau dua 0.04% lossis phosphorus ntau dua 0.04% feem ntau yuav tawg thaum lub sijhawm vuam laser.

Qhov saum npoo ntawm cov hlau carbon vim nws cov ntsiab lus carbon ntawm cov hlau saum npoo yog siab, yooj yim los tsim cov kab nrib pleb thiab tawg hauv qhovtxheej carbon, feem ntau tsis haum rau laser vuam.