Vuam electrodes yog hlau hlau nrog ci ntawm cov tshuaj coatings. Tus pas nrig yog siv los txhawb nqa qhov vuam arc thiab muab cov hlau muab tub lim xav tau rau kev sib koom ua ke. Cov txheej tiv thaiv cov hlau los ntawm kev puas tsuaj, stabilizes lub arc, thiab txhim kho qhov vuam. Txoj kab uas hla ntawm cov hlau, tsawg dua txheej txheej, txiav txim siab qhov loj ntawm vuam pas nrig. Qhov no yog qhia nyob rau hauv feem ntawm ib nti xws li 3/32 ", 1/8", los yog 5/32." Qhov me me ntawm txoj kab uas hla txhais tau hais tias nws yuav tsum tau tam sim no tsawg thiab nws deposits ib tug me me ntawm muab tub lim hlau.
Hom ntawm lub hauv paus hlau yog welded, cov txheej txheem vuam thiab tshuab, thiab lwm yam kev mob txiav txim siab hom vuam electrode siv. Piv txwv li, cov pa roj carbon tsawg lossis "mild steel" yuav tsum muaj cov hlau me me vuam pas nrig. Vuam cam khwb cia hlau, txhuas los yog tooj dag yuav tsum tau sib txawv vuam rods thiab khoom siv.
Lub flux txheej ntawm cov electrodes txiav txim seb nws yuav ua li cas thaum lub sij hawm vuam txheej txheem. Qee cov txheej txheem kub hnyiab thiab cov hluav taws kub hnyiab ua rau cov pa taws thiab ua raws li daim ntaub thaiv nyob ib puag ncig lub vuam "pas dej", tiv thaiv nws los ntawm huab cua puag ncig nws. Ib feem ntawm cov flux melts thiab sib tov nrog cov hlau thiab ces ntab cov impurities rau saum npoo. Cov impurities no hu ua "slag." Lub weld tiav lawm yuav nkig thiab tsis muaj zog yog tias tsis yog rau qhov flux. Thaum lub welded sib koom yog txias, lub slag tuaj yeem raug tshem tawm. Ib tug chipping rauj thiab hlau txhuam yog siv los ntxuav thiab tshuaj xyuas qhov vuam.
Cov hlau-arc vuam electrodes tej zaum yuav muab ua pawg li liab qab electrodes, lub teeb coated electrodes, thiab shielded arc los yog hnyav coated electrodes. Hom siv nyob ntawm cov khoom tshwj xeeb uas yuav tsum tau muaj xws li: corrosion resistance, ductility, siab tensile zog, hom puag hlau yuav tsum tau welded; thiab txoj hauj lwm ntawm cov weld uas yog tiaj tus, kab rov tav, ntsug, lossis saum taub hau.
American Welding Society's (AWS) classification number series tau txais los ntawm kev lag luam vuam. Cov piv txwv qhia txog electrode hauv qab no yog rau steel arc-welding qws sau npe E6010:
· "E" qhia "electrode" rau hluav taws xob arc vuam
· Thawj ob (lossis peb nyob rau qee kis) tus lej (60) qhia lub zog tensile hauv ntau txhiab phaus ib square inch
· Qhov thib peb (lossis plaub hauv qee kis) tus lej (1) qhia txog txoj haujlwm ntawm vuam. Tus "O" qhia tias qhov kev faib tawm no tsis siv; "1" yog rau txhua txoj haujlwm; "2" yog rau txoj haujlwm tiaj tus thiab kab rov tav nkaus xwb; 3 yog rau txoj hauj lwm tiaj tus nkaus xwb
· Ob tug lej kawg ua ke (10) qhia txog hom txheej thiab hom kev siv hluav taws xob xav tau, 10 txheej txheej organic thiab DC tam sim no nrog rov qab polarity.
· Yog li ntawd, ib tug vuam pas nrig E6010 qhia "E" phau ntawv arc-welding electrode nrog (60) qhov tsawg kawg nkaus lub zog ntawm 60, 000 psi., uas yuav siv tau (1) nyob rau hauv txhua txoj hauj lwm thiab (10) DC rov qab polarity yuav tsum tau.
