1. Kev xaiv raug ntawm vuam tsis
(1) Vuam tam sim no thiab arc voltage Nyob rau hauv CO2 roj shielded vuam, rau txhua txoj kab uas hla ntawm vuam hlau, muaj ib co kev cai lij choj ntawm tus nqi spatter thiab vuam tam sim no. Nyob rau hauv luv luv-circuit hloov chaw ntawm me me tam sim no, qhov vuam spatter tus nqi yog me me. Tom qab nkag mus rau thaj tsam zoo ntawm kev hloov pauv ntawm qhov siab tam sim no, qhov vuam spatter tus nqi kuj yog me me, thiab qhov vuam spatter tus nqi yog qhov loj tshaj plaws nyob rau hauv nruab nrab cheeb tsam. Siv ib lub xaim nrog txoj kab uas hla ntawm 1.2 hli ua piv txwv, thaum lub vuam tam sim no tsawg dua 150A lossis ntau dua 300A, qhov vuam spatter me me, thiab nruab nrab ntawm ob, qhov vuam spatter yog loj. Thaum xaiv qhov vuam tam sim no, qhov chaw vuam tam sim no nrog qhov siab vuam spatter tus nqi yuav tsum tau zam kom ntau li ntau tau, thiab qhov tsim nyog arc voltage yuav tsum tau sib phim tom qab vuam tam sim no.
(2) Vuam hlau txuas ntev: Lub vuam hlau txuas ntxiv ntev (piv txwv li qhuav elongation) kuj muaj qhov cuam tshuam rau qhov vuam spatter. Qhov ntev ntawm vuam hlau txuas ntxiv ntev yog, qhov loj dua qhov vuam spatter yog. Piv txwv li, rau ib tug hlau nrog ib txoj kab uas hla ntawm 1.2 hli, thaum lub vuam tam sim no yog 280A, thaum lub extension ntev ntawm cov hlau nce los ntawm 20mm mus rau 30mm, tus nqi ntawm vuam spatter nce li ntawm 5%. Yog li ntawd, nws yuav tsum tau hais tias qhov ntev ntawm lub vuam hlau yuav tsum tau luv luv
2. Txhim kho qhov vuam fais fab
Qhov ua rau ntawm cov txaws hauv CO2 roj shielded vuam yog tsuas yog nyob rau hauv lub kawg theem ntawm lub luv luv-circuit hloov, vim lub ntse nce ntawm lub short-circuit tam sim no, cov kua choj hlau yog sai rhuab, ua rau kub tsub zuj zuj, thiab thaum kawg, cov kua choj bursts tsim splashes. Xav txog qhov kev txhim kho ntawm lub vuam fais fab, txoj hauv kev xws li kev sib txuas ntawm cov reactors thiab resistors, tam sim no hloov, thiab tam sim no waveform tswj nyob rau hauv lub vuam Circuit Court yog siv los txo qhov tawg tam sim no ntawm cov kua choj thiab yog li txo qhov vuam spatter. Tam sim no, thyristor-hom yoj-tswj CO2 roj shielded vuam tshuab thiab inverter-hom transistor-hom yoj-tswj CO2 roj shielded vuam tshuab tau siv, thiab tau ua tiav kev ua tiav ntawm kev txo qis ntawm CO2 roj shielded vuam.
3. Ntxiv argon (Ar) rau cov roj CO2:
Tom qab ntxiv qee cov roj argon rau CO2 roj, lub cev thiab tshuaj lom neeg ntawm CO2 roj tau hloov. Nrog rau qhov nce ntawm argon gas piv, qhov vuam spatter maj mam txo, thiab qhov tseem ceeb tshaj plaws ntawm kev hloov pauv ntawm qhov tawg yog thaum lub particle txoj kab uas hla yog ntau dua 0.8mm spatter, tab sis muaj me ntsis cuam tshuam rau spatter nrog particle inch tsawg dua 0.8mm.
Tsis tas li ntawd, kev siv cov roj sib xyaw ua ke uas tiv thaiv argon ntxiv rau CO2 roj kuj tuaj yeem txhim kho qhov tsim vuam. Cov nyhuv ntawm kev ntxiv argon rau CO2 roj ntawm cov vuam nkag, fusion dav thiab seem qhov siab, nrog cov argon hauv CO2 roj. Raws li cov ntsiab lus roj nce ntxiv, qhov nkag mus tob zuj zus, qhov dav fusion nce, thiab qhov siab qhov vuam txo qis.
4. Siv tsis tshua muaj spatter vuam hlau
Rau cov khoom siv hlau, ntawm qhov chaw ntawm kev ua kom lub zog ntawm cov khoom sib koom ua ke, txo cov ntsiab lus ntawm cov pa roj carbon ntau li ntau tau, thiab tsim nyog ua kom cov alloying ntsiab xws li titanium thiab txhuas tuaj yeem txo qhov vuam spatter.
Tsis tas li ntawd, kev siv flux-cored hlau CO2 roj shielded vuam tuaj yeem txo qhov vuam spatter, thiab vuam spatter ua los ntawm flux-cored vuam hlau yog li ntawm 1/3 ntawm cov khoom siv-cored vuam hlau.
5. Kev tswj ntawm vuam lub kaum sab xis:
Thaum lub vuam teeb yog perpendicular rau lub vuam, qhov tsawg kawg nkaus ntawm vuam spatter yog tsim, thiab ntau dua lub kaum sab xis ntawm inclination, qhov ntau spatter. Thaum vuam, lub inclination lub kaum sab xis ntawm vuam vuam yuav tsum tsis pub tshaj 20º.
Post lub sij hawm: Jun-22-2022
