Hauv cov teb chaws muaj kev lag luam uas muaj kev lag luam tsim khoom siv siab heev, kwv yees li 50% ntawm tag nrho cov txiaj ntsig tso tawm los ntawm cov tuam txhab cuam tshuam nrog kev vuam. Txhawm rau txhim kho kev sib tw ua lag luam, cov chaw tsim khoom xav tau kev ua haujlwm zoo dua thiab cov nqi khoom qis dua. Txhawm rau txhim kho kev ua haujlwm vuam, ntau txoj hauv kev xws li siv cov txheej txheem vuam zoo kawg nkaus,kev sib xyaw ua ke vuam, ntau txoj hlua lossis ntau txoj hlua vuam, thiab cov xov hlau vuam zoo dua tuaj yeem siv tau. Cov txheej txheem vuam siab heev no tau txhim kho kev ua haujlwm vuam ntau lawm, tau txais kev siv dav, thiab ua rau muaj kev pab tseem ceeb raukev txhim kho thev naus laus zis vuam.

Nkag mus rau xyoo pua 21st, nrog rau kev txhim kho sai ntawm kev tshawb fawb thiab thev naus laus zis, kev vuam ua haujlwm siab tau txais kev saib xyuas ntau ntxiv thiab tau dhau los ua qhov kev txhim kho hauv kev tshawb fawb thiab kev siv thev naus laus zis vuam hauv tsev thiab thoob ntiaj teb. Yav dhau los, hauv kev vuam ua haujlwm siab, kev txhim kho hauv cov ntaub ntawv vuam yog qhov tseem ceeb. Nyob rau hauv xyoo tas los no, kev txhim kho ntawm kev siv tshuab vuam tau txhawb nqa kev txhim kho ntawm cov thev naus laus zis vuam ua haujlwm siab, thiab kev vuam ceev lossiskev vuam uas muaj kev tso tawm sai saitau dhau los ua qhov kev coj ua yav tom ntej. Qhov hu ua "kev siv tshuab vuam ua haujlwm siab" feem ntau yog hais txog kev sib sau ua ke ntawm cov thev naus laus zis xws li kev vuam ceev ceev, kev vuam ceev ceev, thiab kev vuam ua haujlwm siab.

(1) Cov Kev Qhia Txog Kev Txhim Kho Kev Ua Haujlwm Vuam

Kev txhim kho kev tsim khoom vuam muaj ob yam: ib qho yog kev vuam ceev ceev uas tsom mus rau kev ua kom cov khoom siv vuam yaj sai dua, uas yuav tsum tau yaj ntau cov khoom siv vuam ib zaug, feem ntau yog siv rau kev vuam phaj tuab, nrog rau tus nqi tso tawm txog li 30 kg / h; qhov thib ob yog kev vuam ceev ceev uas tsom mus rau kev ua kom qhov ceev vuam ceev, uas nws qhov pib tseem ceeb yog ua kom tam sim no vuam sai dua thaum ua kom qhov ceev vuam ceev kom tswj tau qhov cua sov vuam tsis hloov pauv, feem ntau yog siv rau kev vuam phaj nyias, nrog qhov ceev vuam ceev txog li 3-8 npaug ntawm kev vuam CO₂ roj tiv thaiv.

Los ntawm kev tshawb fawb thiab kev txhim kho thiab kev tsim khoom tam sim no, muaj cov hauv qab no los txhim kho kev ua haujlwm ntawm kev vuam:

• Txhim kho qhov ceev tshaj plaws ntawm cov hlau yaj los ntawm kev sib xyaw ua ke ntawm cov pa roj tiv thaiv kom nce qhov nrawm ntawm kev vuam.
• Siv cov khoom siv cua sov sib xyaw los txhim kho kev vuam zoo, xws li laser-arc hybrid welding, laser-plasma arc hybrid welding, thiab lwm yam.
• Txais yuav ntau txoj hlua khi los yog kub-hlau pub kom txhim kho kev vuam zoo, xws li twin-wire (lossis ntau txoj hlua) roj shielded welding, multi-wire submerged arc welding, hot-wire roj shielded welding, thiab lwm yam.
• Siv cov khoom siv tshuaj lom neeg tshwj xeeb ntawm cov ntsiab lus nquag los txhim kho lub peev xwm nkag mus rau hauv arc, txo qhov loj me ntawm qhov vuam, thiab txhim kho kev ua haujlwm vuam zoo, xws li A-TIG vuam, A-Laser txheej txheem, thiab lwm yam.
• Txo qhov loj ntawm qhov zawj kom txo qhov chaw vuam thiab txo cov hlau uas tso rau, xws li kev vuam qhov nqaim.
• Txais yuav cov qauv tsim tawm tshwj xeeb ntawm cov khoom siv fais fab vuam kom ua rau qhov ceev vuam ceev dua.

Tam sim no, lub ntsiab lus thoob ntiaj teb ntawmKev siv roj ua haujlwm siab (MAG) vuam hlau(saib DVS-No.0909-1) yog: rau cov hlau uas muaj txoj kab uas hla 1.2 hli, MAG vuam nrog qhov ceev pub hlau tshaj 15m / feeb lossis tus nqi tso tawm ntau dua 8kg / teev hu ua kev vuam MAG ua haujlwm siab. Qhov ua haujlwm tso tawm ntawm qee qhov kev vuam MAG ua haujlwm siab tuaj yeem ncav cuag 20kg / teev.

(2) Cov Khoom Siv Vuam MAG Zoo Tshaj Plaws

Tam sim no, ntawm cov hau kev los txhim kho qhov ua tau zoo ntawm MAG vuam, qhov siv dav dav yog hloov cov xov hlau khov kho nrog cov xov hlau flux-cored rau kev vuam. Kev siv cov xov hlau-cored nrog hmoov hlau tuaj yeem ua rau qhov ua tau zoo ntawm kev tso hlau ntau dua 50% piv rau cov xov hlau khov kho. Tsis tas li ntawd, kev kho cov roj tiv thaiv tuaj yeem txhim kho qhov ua tau zoo ntawm cov xov hlau.

• Cov xov hlau khov kho yog tsim rau cov kab uas muaj li ntawm 1.0-1.2 hli. Cov xov hlau nyias dhau lawm nyuaj rau hloov kho rau kev pub cov xov hlau ceev ceev vim tsis ruaj khov; thaum cov xov hlau uas muaj kab uas loj dua 1.2 hli tsis yooj yim los tsim cov arc hloov pauv ruaj khov txawm tias muaj hluav taws xob ntau.
• Cov xov hlau flux-cored tuaj yeem siv cov txoj kab uas hla ntawm 1.2-1.6 hli. Ob qho tib si hlau-cored thiab slag-forming flux-cored xov hlau tuaj yeem ua tiav qhov kev vuam MAG zoo nrog cov txheej txheem vuam loj. Tshwj xeeb tshaj yog rau cov xov hlau-cored, vim tias qhov siab ntawm cov hmoov hlau (txog li 45%), thaum siv 1.6 hli txoj kab uas hla hlau-cored xov hlau nrog cov txheej txheem vuam ntawm 380A vuam tam sim no thiab 38V vuam voltage, cov xov hlau yaj tuaj yeem ncav cuag 9.6kg / teev.

Qhov kev hloov pauv ntawm cov hlau-cored hlau zoo ib yam li cov hlau khov. Cov hlau flux-cored tuaj yeem vuam ua daim ntawv ntawm kev txau tshuaj thiab kev hloov pauv luv luv ceev, tab sis tsis tuaj yeem tsim kev hloov pauv arc tig. Qhov ceev tshaj plaws ntawm cov hlau rutile flux-cored hlau tuaj yeem ncav cuag 30m / feeb, thiab qhov txwv siab tshaj plaws ntawm qhov ceev ntawm cov hlau flux-cored hlau yooj yim yog li 45m / feeb, nrog rau cov hlau yaj txog li 20kg / teev.

(3) Hom Kev Hloov Cov Dej Ntswg Hauv Kev Vuam MAG Uas Muaj Kev Ua Haujlwm Zoo

Hauv kev vuam MAG ib txwm muaj, thaum lub zog vuam nce ntxiv, daim ntawv hloov pauv ntawm cov dej ntws hloov pauv los ntawm kev hloov pauv luv luv, kev hloov pauv globular mus rau kev hloov pauv tsuag. Raws li lub hauv paus ntawm kev ua kom muaj kev sib txuas zoo, qhov txwv tam sim no rau kev hloov pauv dej ntws yog li 400A.

Hauv kev vuam MAG uas muaj qhov siab, los ntawm kev siv cov khoom siv lub cev ntawm ntau cov pa roj tiv thaiv thiab ua kom cov hlau txuas ntxiv zoo, qhov ceev ntawm cov hlau yaj tuaj yeem nce ntxiv hauv qhov siab thiab qhov hluav taws xob siab ntawm kev vuam MAG tsis zoo, thiab tib lub sijhawm, cov qauv hloov pauv dej kuj hloov pauv tseem ceeb. Nws cov ntawv yooj yim yog: kev hloov pauv tshuaj tsuag ib txwm muaj, kev hloov pauv luv luv ceev, kev hloov pauv tshuaj tsuag tig, thiab kev hloov pauv tshuaj tsuag ceev.

• Kev hloov pauv tshuaj tsuag ib txwm muaj: Nyob rau hauv lub teb ntawmkev vuam ceev ceev, qhov ceev ntawm kev pub hlau ntawm kev txau hloov pauv arc yog nyob rau hauv qhov ntau ntawm 15-20m / min.
• Kev hloov pauv luv luv ntawm high-speed arc: Kev hloov pauv luv luv ceev ceev tau los ntawm kev txo qhov hluav taws xob vuam thiab nce qhov ntev qhuav hauv qhov ceev pub hlau ntawm 15-20m / feeb. Vim yog qhov nce ntawm qhov ntev qhuav mus rau 40mm, qhov kawg ntawm cov hlau mos thiab pib tig, nrog qhov offset ntawm 1-2mm ntawm lub hlau axis. Qhov kawg ntawm cov hlau tig tsim cov kev hloov pauv luv luv tsis tu ncua ntawm ob sab ntawm qhov vuam.
• Kev hloov pauv tshuaj tsuag tig: Thaum lub xov hlau kawg raug ua kom mos los ntawm cov hluav taws xob siab thiab raug lub zog arc cuam tshuam. Rau cov xov hlau uas muaj txoj kab uas hla 1-2 hli, qhov ceev ntawm kev pub xov hlau yuav tsum ncav cuag 25m / feeb lossis siab dua, thiab qhov sib npaug tsawg kawg nkaus vuam tam sim no yog li 450A. Tag nrho qhov sib txawv ntawm qhov kawg dawb ntawm cov xov hlau los ntawm txoj kab hlau yog ob peb millimeters, uas tuaj yeem pom nrog lub qhov muag liab qab thaum vuam.
• Kev kub ceev txau hloov pauv arc: Nws yog tus cwj pwm los ntawm kev hloov pauv ntawm cov tee dej axial, nrog rau kev pub hlau ceev tshaj 20m / feeb, thiab qhov loj ntawm cov tee dej yog kwv yees li sib npaug rau txoj kab uas hla ntawm cov hlau. Piv nrog rau kev hloov pauv ib zaug ntawm cov tee dej hauv lub arc, cov txheej txheem no muaj qhov zoo tshaj plaws. Cov txheej txheem sib cais cov tee dej rov ua dua tib yam, thiab lub teeb plasma nqaim, concentrated, thiab dazzling yog tus yam ntxwv ntawm kev hloov pauv ceev ceev. Thaum qhov kawg ntawm cov hlau mos muag nqis los, qhov ntev ntawm lub arc txo qis thiab lub plasma arc kem dav dua, thiab tom qab ntawd tus choj kua tau tsim ntawm cov tee dej molten thiab qhov kawg ntawm cov hlau. Tus choj kua tau raug nias tas li nyob rau hauv qhov kev ua ntawm lub zog electromagnetic contraction, ua rau lub arc dav dua. Thaum tus choj ntawm qhov kawg ntawm cov hlau thiab cov tee dej me me txaus, plasma tau tsim nyob ib puag ncig tus choj. Thaum lub sijhawm thaum tus choj tawg, qhov kev hloov pauv ceev ceev arc rov qab los, rov ua dua lub dav hlau plasma nqaim thiab concentrated. Rau kev hloov pauv ceev ceev arc, vim yog qhov tob tab sis nqaim nkag mus, lub hauv paus weld tsis tuaj yeem puv nrog cov hlau molten.