1. Arc welding
Arc welding yog tam sim no txoj kev siv vuam siv ntau tshaj plaws. Nws muaj xws li: tes arc welding, submerged arc vuam, tungsten roj shielded arc welding, plasma arc welding, thiab roj hlau arc welding. Feem ntau cov hlua arc yog ua raws li cov hluav taws xob ntawm cov hlwv ntawm cov electrode thiab cov workpiece. Thaum txoj kev sib koom ua ke, lub cav hlau yuav siv los yog siv tsis tau. Thaum cov electrode siv yog xaim hlau xaim thaum lub vuam txheej, nws hu ua voj vuam welding, xws li tes kov welding, submerged arc vuam, roj shielded arc vuam, tubular hlau arc vuam, thiab lwm yam .; cov electrode siv tsis tau yaj thaum lub vuam txheej txheem. Thaum siv tus pas nrig lossis lub tungsten pas, nws yog hu ua non-melting arc welding, xws li tungsten argon arc vuam, plasma arc welding, thiab li ntawm.
2. Ntxuav tes Arc welding
Txhais tes arc vuam yog ib qho ntawm qhov qub tshaj plaws thiab feem ntau plhom siv welding txoj hauv ntau txoj kev siv welding. Nws yog ib qho electrode coated nrog ib txheej txheej electrode thiab ib lub cav hlau muab tub lim. Lub nraub qaum yog hlawv ntawm qhov kawg ntawm lub electrode thiab qhov chaw ntawm lub workpiece tau welded. Ntawm qhov one hand, lub txheej yuav ua kom muaj roj los tiv thaiv lub pob hauv qab ntawm cov cua sov, thiab ntawm qhov tod tes, nws tuaj yeem tsim cov cag npog ntawm lub pas dej ua ke kom tsis txhob muaj kev cuam tshuam ntawm cov hlau uas muaj cov pa roj ib ncig . Lub luag haujlwm tseem ceeb tshaj ntawm cov slag yog tsim cov tshuaj ua muaj zog nrog cov hlau los yog ntxiv rau cov khoom sib txig ua kom txhim kho cov khoom hluav taws xob. Cov khoom siv tes kov khoom siv tes ua yooj yim, lub teeb thiab yoog raws. Nws tuaj yeem siv rau txoj hlua ntawm luv nruab nrab ntawm kev tu vaj tse thiab kev sib txoos, tshwj xeeb tshaj yog rau kev vuam hauv cov cheeb tsam uas muaj chaw ncav cuag. Tes caj dab txuas nrog cov electrode coj los siv tau rau feem ntau muaj cov hlau, cov hlau tsis muaj steel, cam khwb cia hlau, copper txhuas, npib tsib xees thiab lawv cov txhauv.
3. Submerged arc welding
Submerged arc welding yog ib lub xaim uas tau siv tas li ib qho electrode thiab ib lub cav hlau. Thaum welding, ib txheej ntawm cov nplaum nplaum yog siv rau ntawm qhov chaw khi, thiab cov hlab arc nyob rau hauv cov lus nplaum nplaum rau qhov xaus ntawm cov hlau thiab cov ntaub ntawv hauv zos los ua ib qho txuas. Nyob rau hauv qhov kev txiav txim ntawm cov hluav taws xob sov, lub sab saud ntawm lub pob zeb ua rau cov tawv nqaij qis thiab muaj qhov sib xyaw metallurgical nrog cov kua ua kua. Lub cag ntub zaws ntawm lub pas dej hlau, uas muaj peev xwm tiv thaiv cov hlau, ua kom tsis muaj huab cua phem, thiab ua kom muaj lub cev thiab tshuaj muaj zog nrog lub tshuab hlau los txhim kho cov hlau thiab kev ua haujlwm. Ntawm qhov tod tes, lub weld hlau yuav ua tau. Maj mam ya. Submerged arc vuam siv tau vuam siv loj dua. Muab piv nrog tes arc welding, nws qhov loj tshaj plaws yog qhov zoo qhov zoo thiab kev siab vuam ceev. Yog li ntawd, nws yog tshwj xeeb yog tsim rau welding ncaj seams ntawm loj workpieces. Thiab feem ntau siv cov khoom siv vuam vias. Submerged arc welding tau dav siv nyob rau hauv welding ntawm carbon hlau, qes alloy structural hlau thiab stainless hlau. Txij li thaum slag tuaj yeem txo qhov sib tw ua ke, muaj qee qhov muaj zog cov kab hlau, cov pa roj carbon ntau, thiab lwm yam.
4. Tungsten roj thaiv tawm arc welding
Qhov no nws yog ib qho uas tsis yog-melting gas shielded arc welding uas siv ib qho tawm ntawm cov hluav taws xob hauv tshuab hluav taws xob thiab lub tshuab ua hauj lwm kom yaj hlau ua lub voj. Thaum welding tus txheej txheem, lub tungsten tsis yaj thiab ua nkaus xwb raws li hluav taws xob. Nyob rau tib lub sijhawm, argon los yog helium yog noj los ntawm lub taub hau ntawm lub tsau rau kev tiv thaiv. Lwm cov hlau ntxiv tau ntxiv raws li xav tau. Thoob ntiaj teb hu ua TIG vuam. Tungsten roj tiv thaiv arc soldering yog ib txoj hauv kev zoo mus txuas rau nyias hlau thiab primer vim tias nws tswj kev tswj cov cua sov tuaj. Txoj kev no siv tau rau txhua qhov sib txuas hlau, tshwj xeeb tshaj yog rau cov vuam txhuas, magnesium, hlau uas ua rau cov hluav taws xob oxide, thiab cov hlau reactive xws li titanium thiab zirconium. Txoj kev siv welding no muaj kev sib tw zoo, tiam sis nws txoj kev vuam voj qeeb qeeb dua lwm txoj hlua caj dab.
5. Plasma arc welding
Plasma arc welding kuj yog ib qho siv tau cov hlua caj dab arc. Nws siv ib qho kev nruj ntawm lub tshuab electrode thiab cov haujlwm workpiece (hu ua ib qho kev xa mus rau tom qab) kom ua tiav qhov khoom. Cov electrodes siv feem ntau yog tungsten. Plasma roj uas tsim cov plasma arc tuaj yeem ua argon, nitrogen, helium los yog sib xyaw ntawm ob qho tib si. Nws kuj muaj kev tiv thaiv los ntawm kev siv roj los ntawm lub taub yas. Muab ntxhiab hlau muab ntxiv rau thaum lub welding los yog tsis muaj hlau. Hauv plasma arc vuam, qhov muaj peev xwm ntawm arc muaj zog vim yog qhov ncaj ntawm lub arc thiab qhov siab zog ceev. Lub qhov me me tau tshwm sim los ntawm plasma arc welding yuav siv rau qhov tsis-grooving ntawm cov hlau feem ntau nyob hauv ib yam tuab tuab, thiab kev nkag mus rau qhov sib txuas thiab kev sib koom ua ke yuav tsum muaj. Yog li ntawd, plasma arc welding muaj cov khoom tsim tau zoo thiab zoo txuas zoo. Txawm li cas los xij, plasma arc vuam cov khoom siv (nrog rau cov tsis muaj cav) yog qhov nyuaj thiab yuav tsum tau tswj kev tswj cov vuam tsis tau. Feem ntau cov hlau uas txuas tau los ntawm cov roj av tungsten thaiv cov hlua khiab pob zeb yuav ua rau cov ntshav plhaws. Hauv kev sib piv, rau cov hlau tsis tshua muaj hlau hnyav 1 hli lossis tsawg, plasma arc vuam tau yooj yim tau.
