Tej roj rau Fiber Laser tej tshuab
Nqaj-tse laser yog teem los ntawm lub lens nyob rau hauv tej taub hau thiab qhia mus rau tus workpieces yog ib tug nozzle. Lub tej roj thiab faib los ntawm no nozzle. Nyob rau daim ntawv thov, pa, nitrogen los yog cua compressed yog siv lub tej roj. Nitrogen tej nta: Lub ntsiab zoo ntawm tej nitrogen yog txiav siab zoo, lug siv nyob rau hauv tej ua, tiam sis nws disadvantage yog muaj nqi. 1) tej zoo Raws li siv roj ntu, laser tej cav yuav tau muab faib ua pa nitrogen ob txoj kev txiav. Cov pa yog koom tes nrog combustion thaum tej pa, thiab lub melting point yog ze rau ntawm tus taw tes kub. Kub ua tau kom ib yam mob loj heev tshwm sim, yeej tsis tau lees tias du seem; kuj tsis muaj, nws slit dav, cross-section twill, roughness deg thiab vuam slag zoo tsis xws luag yog tug nrog oxidation Event, tsam tshav kub muaj cuam tshuam dab tsi, qhov zoo tshaj tej. Nitrogen tej ntaub khi laser zog melting, nitrogen tshuab tawm qhov hlais thiab tsis txhob tshwm sim tej tshuaj lom neeg. Qhov kub ntawm lub melting point hauv cheeb tsam no kuj tsawg, cov nitrogen cua txias, kev tiv thaiv, cov tshuaj tiv thaiv yog tej ruaj khov, teeb, zoo. Cross-section du, deg roughness tsawg tsawg, thiab tsis muaj oxide txheej. (2) txiav nqi Tus nqi uas siab purity nitrogen peb lub sij hawm ntawd yog ntawm cov pa kub purity. Piv txwv li, tej 2 hli stainless tuab hlau phaj, tus pa yuav tsum siab 4 * 105Pa, pa ya noj 2.3m3 / h, nitrogen yuav coj mus rau 14 (1 ~ 4) * 105Pa, xav tau kev pab cov pa nitrogen * 105Pa, 15.2m3 / h. Laser tej cav thiab tej nitrogen kom muaj zog, ib coj ua kom neeg zog noj. Qhov ntau ntxiv ntawm nitrogen tej pa tej tshaj 15 lub sij hawm. (3) ua ntau yam Pab tau cov pa combustion tsub kom sab nraud thiab tsub kom lub thickness ntawm qhov ntuag. Qhov kom zoo dua yog tsis tshua muaj nqi, mas siv nyob rau hauv cov hlau. Nitrogen tsis pab combustion, lub melting tsam kub yog luv, tsim kev xyuas txog txhuas, dag, thiab lwm yam ntaub ntawv uas tsis muaj point melting. Laser tej tshuab Nitrogen thaiv hlais yog tsis oxidized, tseem siv tau rau lub oxidation ntawm stainless hlau tej, ua saib cov ntaub ntawv hauv qab no.