(1) Qhov zoo ntawm electrode arc vuam yog tias cov khoom siv yooj yim, hnav thiab hloov tau yooj yim rau kev khiav lag luam. Nws tuaj yeem tsim nyog rau vuam luv seams hauv kev saib xyuas thiab sib dhos, tshwj xeeb tshaj yog rau vuam hauv qhov nyuaj-rau-mus txog. Qhov tsis zoo yog tias nws yuav tsum tau ua haujlwm siab rau kev ua haujlwm welder, tus nqi siab welder kev cob qhia, kev ua haujlwm tsis zoo, kev ua haujlwm tsawg, thiab tsis haum rau vuam tshwj xeeb hlau thiab nyias daim hlau. Vuam pas nrig arc vuam nrog sib txuas vuam pas nrig tuaj yeem tsim nyog rau kev vuam ntawm feem ntau cov pa roj carbon steel, stainless hlau, cam khwb cia hlau, tooj liab, txhuas, npib tsib xee thiab lawv cov alloys.
(2) Submerged arc welding tuaj yeem siv qhov tam sim no loj dua. Nyob rau hauv qhov kev txiav txim ntawm arc tshav kub, ib feem ntawm cov flux melts rau hauv slag thiab undergoes ib cov kua metallurgical cov tshuaj tiv thaiv nrog cov kua hlau. Lwm qhov ntawm cov slag ntab rau saum npoo ntawm lub pas dej hlau molten. Ntawm qhov tod tes, nws tuaj yeem tiv thaiv cov hlau vuam, tiv thaiv cov pa phem, thiab ua rau lub cev thiab tshuaj lom neeg nrog cov hlau molten, txhim kho cov muaj pes tsawg leeg thiab kev ua haujlwm ntawm cov hlau vuam; ntawm qhov tod tes, nws kuj tseem tuaj yeem ua rau cov weld Cov seamed hlau txias maj mam kom tsis txhob muaj qhov tsis xws luag xws li tawg thiab pores. Piv nrog electrode arc vuam, nws qhov zoo yog cov vuam zoo, vuam ceev ceev thiab ua haujlwm zoo. Yog li ntawd, nws yog tshwj xeeb tshaj yog haum rau welding ntawm ncaj seams thiab circumferential seams ntawm loj workpieces, thiab mechanized welding feem ntau yog siv. Qhov tsis zoo yog tias nws feem ntau tsuas yog tsim rau vuam tiaj seams thiab ces kaum seams. Vuam nyob rau hauv lwm txoj hauj lwm yuav tsum tau tshwj xeeb pab kiag li lawm los xyuas kom meej tias cov flux npog lub weld cheeb tsam thiab tiv thaiv lub to ntawm lub molten pas dej ua ke hlau; lub arc thiab zawj tsis tuaj yeem pom ncaj qha thaum vuam. Tus txheeb ze txoj hauj lwm ntawm lub vuam seam yuav tsum tau ib tug tsis siv neeg vuam seam mus txog qhovtwg system los xyuas kom meej tias lub vuam torch yog raws li nyob rau hauv lub vuam seam yam tsis muaj vuam sib txawv; Thaum qhov tam sim no loj dua, qhov hluav taws xob siv hluav taws xob ntawm lub arc yog siab dua. Thaum qhov tam sim no tsawg dua 100A, qhov arc stability tsis zoo thiab tsis haum rau vuam. Nyias qhov tsawg dua 1 hli tuab. Submerged arc vuam tau dav siv rau vuam cov hlau, cov hlau tsis tshua muaj hlau thiab stainless hlau. Vim tias slag tuaj yeem txo qhov txias ntawm qhov sib koom ua ke, qee qhov muaj zog steel hlau thiab cov pa roj carbon siab kuj tuaj yeem welded los ntawm submerged arc vuam.
(3) Gas tungsten arc welding tuaj yeem tswj cov khoom siv hluav taws xob zoo heev, yog li nws yog ib txoj hauv kev zoo rau kev sib koom ua ke nyias daim hlau thiab primer vuam. Txoj kev no tuaj yeem siv rau vuam yuav luag txhua cov hlau, tshwj xeeb tshaj yog rau cov hlau vuam qhuav xws li txhuas thiab magnesium uas tuaj yeem tsim cov oxides refractory, nrog rau cov hlau nquag xws li titanium thiab berkelium. Txoj kev vuam no muaj vuam zoo, tab sis txawv ntawm lwm txoj kev vuam arc. Piv nrog rau vuam, nws cov vuam ceev qeeb qeeb, cov nqi tsim khoom yog siab, nws cuam tshuam zoo heev los ntawm cov huab cua nyob ib puag ncig, thiab nws tsis haum rau kev ua haujlwm sab nraum zoov.
(4) Gases feem ntau siv rau hauv cov pa roj hlau arc vuam xws li argon, helium, carbon dioxide los yog sib tov ntawm cov roj no. Thaum argon thiab nitrogen siv los tiv thaiv roj, nws yog hu ua molten inert gas shielded welding (hu ua MIG vuam thoob ntiaj teb); Thaum siv cov roj inert thiab oxidizing roj (O2, CO2) los yog C02 thiab C02+ Thaum cov roj sib xyaw ntawm 02 yog cov roj tiv thaiv, nws tau sau npe hu ua melting tsis tshua muaj zog tiv thaiv vuam (xa mus rau raws li MAG vuam thoob ntiaj teb). Lub ntsiab kom zoo dua ntawm cov roj hlau arc vuam yog tias nws tuaj yeem yooj yim welding nyob rau hauv ntau txoj haujlwm, thiab nws kuj muaj qhov zoo ntawm vuam ceev ceev thiab ntau dua deposition tus nqi. MAG welding tuaj yeem siv rau kev vuam ntawm cov hlau tseem ceeb, suav nrog carbon steel thiab hlau alloy. MIG vuam yog tsim rau stainless hlau, txhuas, magnesium, tooj liab, titanium, zirconium thiab nickel alloys. Arc chaw vuam tuaj yeem ua tau siv txoj kev no.
(5) Flux cored arc vuam tuaj yeem suav hais tias yog hom roj hlau arc vuam. Lub vuam hlau siv yog flux-cored vuam hlau, thiab cov tub ntxhais ntawm vuam hlau yog ntim nrog hmoov ntawm ntau yam compositions. Thaum lub sij hawm vuam, cov roj tiv thaiv yog ntxiv, feem ntau yog CO2 roj, thiab cov hmoov yog decomposed los yog melted los ntawm tshav kub, uas plays lub luag hauj lwm ntawm generating roj thiab slag los tiv thaiv lub molten pas dej ua ke, infiltrating lub alloy, thiab stabilizing lub arc. Thaum flux-cored hlau arc vuam yog ua yam tsis muaj kev tiv thaiv ntxiv roj, nws yog hu ua self-shielded flux-cored hlau arc vuam. Nws siv cov roj uas tsim los ntawm kev sib cais ntawm cov hmoov ua cov roj tiv thaiv. Qhov kev hloov ntawm qhov ntev ntev ntawm cov vuam hlau nyob rau hauv txoj kev vuam no yuav tsis cuam tshuam rau kev tiv thaiv, thiab qhov kev hloov pauv tuaj yeem loj dua. Flux-cored hlau arc vuam muaj qhov zoo hauv qab no: vuam txheej txheem kev ua tau zoo thiab zoo nkauj vuam hlaws tsim; ceev deposition ceev thiab siab productivity, thiab muaj peev xwm nqa tawm tas li tsis siv neeg thiab semi-automatic vuam; cov txheej txheem hlau yog yooj yim kho, thiab tuaj yeem ua los ntawm ob qho tib si hlau sheath thiab flux core Cov txheej txheem kho cov tshuaj muaj pes tsawg leeg ntawm cov hlau tso; tsawg zog noj; tus nqi qis tag nrho. Qhov tsis zoo yog cov cuab yeej tsim khoom lag luam, cov txheej txheem kev lag luam siab rau kev tsim cov txheej txheem, kev cia siab rau cov kab hluav taws xob-cored vuam hlau, thiab cov vuam hlau tau yooj yim cuam tshuam los ntawm ya raws. Flux cored arc vuam tuaj yeem siv los txuas cov hlau feem ntau ntawm ntau cov tuab thiab cov pob qij txha.
(6) Downward welding yog txheej txheem qhia los ntawm txawv teb chaws uas tsim nyog rau cov kav dej txuas txuas txuas txuas. Nws yog hais txog txheej txheem txheej txheem uas lub arc raug ntaus rau saum cov yeeb nkab weld thiab welded downward. Downward welding muaj qhov zoo ntawm kev ua haujlwm siab thiab zoo vuam zoo.
