Qhov sib txawv ntawm kev txiav laser rau ntau yam khoom hlau (e {}, tooj}}}} g ., oxidation Kev nyiam), thiab kev sib txuam mechanism ntawm laser thiab cov khoom . hauv qab no yog cov ncauj lus kom ntxaws saib cov ntsiab lus:
Laser Txiav kev vam khom cov khoom siv txoj kev nqus ntawm lub zog laser, qhov twgxav txogCuam tshuam cuam tshuam rau lub zog siv hluav taws xob . rasers (wavelength} Cov hlau 1000nm) yog cov kev sib tw tseem ceeb sib txawv ntawm lub wavelength tam sim no:
Aluminium / Tooj: Nrog kev cuam tshuam zoo li 80% -95% (Txhuas ~ Coper ~}} nqus . Tsis muaj zog yuav ua rau "tsis muaj peev xwm pib txiav" lossis "tsis txaus ntseeg}"
Stainless hlau: Refleflivity yog ~ 30% -40% (Tsis muaj ib lub zog oxide), tsis muaj zog}}
Thermal ua haujlwm txiav txim siab npaum li cas tshav kub kis nyob rau hauv cov ntaub ntawv, cuam tshuam rau Molten dej tsim thiab txiav kev txuag hluav taws xob ua haujlwm thiab txiav kev txuag nyiaj txiag.
Aluminium / Tooj: Siab thermal conductivity (txhuas ~ tis, tooj liab ~ 401W / m txhaj rau kev ua kom muaj zog nrawm nrawm nrognce zog(los them rau kev poob kub) lossisUa kom nrawm txiav ceev(los txo cov sijhawm ua kom sov) {{{{}}} Piv txwv li 6000, thaum tib lub thickness tsuas yog xav tau 3M / min.
Stainless hlau: Tsis muaj thermal conductivity (~ 16-20W / maplcing huv sidle, tsawg dua los yog sib npaug ntawm cov molerting fais fab (li}} {{{9}.
Cov ntsiab lus melting txiav txim siab lub zog uas yuav tsum tau yaj cov khoom, thaum npau npau cov ntsiab lus cuam tshuam vaporization (uas xav tau ntxiv lub zog):
Tooj dawb: Melts ntawm ~ 660℃(qis) tab sis boils ntawm ~ 2467 degree), nex .}}}}}}}}}}}}}} burrs .
Tooj liab: Melts ntawm ~ 1085℃(siab dua) thiab boils ntawm ~ 2562℃(siab dua los yog muaj kev sib npaug zos)
Stainless hlau: Melts ntawm ~ 1500℃(siab) tab sis boils ntawm ~ 2750 qib uas yuav tsum muaj laser fais fab (e {}}}}}}}}}}} stainless hlau yog ntau dua 6000W nitrogen txiav) .
Oxidation khoom cuam tshuam cuam tshuam cuam tshuam rau kev xaiv roj thiab txiav qhov zoo:
Stainless hlau: Reacts nrog oxygen los tsim hlau oxide (} Txawm li cas los xij, oxi} Txawm le ca.
Aluminium / Tooj: Kev kub-kub oxidation cov ntaub ntawv refractory (e {}}}}Inert gases (nitrogen / Argon)yog li no yuav tsum tau tiv thaiv oxide tsim thiab tshuab tawm molten shag .
Hom (oxygen, nitrogen, huab cua thiab siab ntawm cov pab kev pab ncaj qha cuam tshuam txiav kev ua haujlwm:
| Khoom |
Pom zoo roj |
Lub tshuab |
| Stainless hlau |
Cov pa (nyiam) |
Oxidation tso tawm thaum tshav kub kub los txhim kho kev ua tau zoo; Txiav cov npoo yuav oxidize me ntsis (haum rau cov tsis-precision seem) . |
| |
Nitrogen |
Tsis muaj oxidation, uas ua rau ci, huv rau cov npoo (zoo tagnrho rau qhov ntsuas ntshav xws li kev kho mob lossis khoom noj +. |
| Txhuas / Txhuas Alloys |
Nitrogen / argon |
Tiv thaiv oxide zaj duab xis tsim thiab brows deb viscous slag (siab dua: 2 {} 0-3.0mpa yuav tsum tau). |
| Tooj Liab / Tooj Liab Alloys |
Nitrogen (siab siab) |
Tooj liab lub thawv loj heev yuav tsum tau muaj siab (ntau dua lossis sib npaug nrog 3, {0MPA) roj kom tshem tawm slag; Siab zog (ntau dua los yog sib npaug rau 6000W) yog qhov tseem ceeb. |
| Khoom |
Tuab (mm) |
Txiav ceev (m / min) |
Txiav Tau Zoo (Burrs / discoloration) |
Cov Ntawv Thov Pom Zoo |
| Stainless Hlau (304) |
10 |
0.8–1.2 |
Me ntsis oxidation nrog oxygen; tsis muaj oxidation nrog nitrogen |
Neeg Kho Tshuab Cov Txheej Txheem, Cov Hlab Ntshav Siab |
| Aluminium (5052) |
8 |
1.5–2.0 |
Tsis muaj oxidation, muaj peev xwm me burrs (kho roj siab) |
Automotive Cov tawv, Aerospace Cheebtsam |
| Ntshiab Tooj (T2) |
5 |
0.3–0.5 |
Tsis muaj oxidation, slag adhesion (siab tshaj plaws xav tau) |
Hluav Taws Xob Busbars, Cov Khoom Siv Hluav Taws Xob |
Qhov sib txawv ntawm kev txiav rau txhuas, tooj liab, thiab stainless hlau qia los ntawmCov Khoom Siv Kev Siv / Tshuaj Kho Khoom thiab Lawv Raug Nrog Laser Zog thiab Cov Khoom Siv Khoom Siv{{0. Cov tswv yim hloov kho (e . g., lub zog, roj kub) yog qhov tseem ceeb:
High-reflectivity aluminium / tooj yuav tsum muaj lub zog siab + inert roj + qhov kev tshem tawm kev nqaim qis;
Stainless hlau yuav rubavageage oxygen oxygen oxygen oxygen ua haujlwm lossis nitrogen rau oxide-dawb precision txiav .
Nkag siab cov ntsiab lus no ua rau cov txheej txheem ua haujlwm tsim kom zoo dua los txhim kho kev ua tau zoo thiab zoo .
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Tus sawv
