Ama-electrode esisekelo se-nickelimelela isigaba esikhethekile sezinto ezisetshenziswayo zokushisela ezenzelwe ukuhlanganisa ama-alloy asebenza kahle kakhulu kanye nezinsimbi ezingafani. Uhlobo lwe-Ni327-3 (AWS A5.11 ENiCrMo-3) lune-hydrogen sodium coating ephansi futhi lusebenza ku-DCEP (Direct Current Electrode Positive) polarity. Le electrode ikhiqiza insimbi egciniwe enobulukhuni obukhethekile, ukuqina, kanye nokumelana nokuqhekeka, igcina amandla aphezulu kanye nokumelana nokugqwala okuphezulu kokubili ekamelweni kanye namazinga okushisa aphezulu. Ukwakheka kwayo kwamakhemikhali kuqinisekisa ukusebenza okuthembekile ezindaweni ezidinga kakhulu lapho ama-electrode ajwayelekile engahluleka khona.
Izakhiwo zensimbi zala ma-electrode ziwenza afaneleke kakhulu ekushiseleni ama-alloy e-nickel-chromium-molybdenum. Insimbi efakiwe ngokuvamile iqukethe cishe i-nickel engu-55%, i-chromium engu-20-23%, kanye ne-molybdenum engu-8-10%, okudala isakhiwo esincane esiqinile esimelana nezinhlobo ezahlukene zokugqwala okuhlanganisa ukuqhekeka kwemigodi kanye nokugqwala kokucindezeleka. Izakhiwo zemishini zifaka phakathi amandla okudonsa adlula i-760 MPa kanye namazinga okunwebeka angaphezu kuka-27%, okuqinisekisa kokubili amandla kanye nokuguquguquka kwejoyinti elishisiwe.
Izicelo zezimboni zeAma-electrode esisekelo se-nickelZihlanganisa imikhakha eminingi okuhlanganisa ukucubungula amakhemikhali, ukukhiqizwa kwamandla, kanye nobunjiniyela basolwandle. Zisetshenziswa kakhulu ekushiseni izingxenye ezibalulekile njenge-reactors, i-heat exchangers, kanye nezinhlelo zamapayipi ezisebenza ngaphansi kwamazinga okushisa aphezulu kanye nezimo ezigqwalisayo. Ama-electrode abonisa ukusebenza kahle okukhethekile ekuhlanganiseni izinsimbi ezingafani kanye nokushiseni okumboziwe ezindaweni zensimbi yekhabhoni, okunikeza izinzuzo zezomnotho kanye nezobuchwepheshe ekwakhiweni nasekulungisweni kwemishini.
Amasu okuphatha kahle kanye nokushisela abalulekile ukuze kusebenze kahle lawa ma-electrode. Ukomisa ngaphambi kokushisa ku-300°Kunconywa ukuthi kusetshenziswe i-C imizuzu engama-60 ukuze kuqedwe umswakama futhi kuvinjelwe izinkinga ezihlobene ne-hydrogen. Abasebenzi kufanele bagcine ubude obufushane be-arc kanye nokufakwa kokushisa okulingene ukuze kulondolozwe izici zensimbi efakiwe. Amazinga okushisa aphakathi kufanele alawulwe ngaphansi kwama-150°C, kanye nokuhlanza ngokuphelele phakathi kokudlula kuyadingeka ukuqinisekisa ukuthi ama-weld angenasici futhi amelana nokugqwala kahle.
Ama-electrode esisekelo se-nickelinikeza izixazululo ezibalulekile zezicelo zokushisela eziyinselele kuzo zonke izimboni. Uhlobo lwe-Ni327-3, oluhlangabezana nezincazelo ze-AWS ENiCrMo-3, lunikeza ukusebenza okuthembekile ngokuhlanganiswa kwalo okulinganiselayo kwezakhiwo zemishini kanye nokumelana nokugqwala. Lawa ma-electrode ayaqhubeka nokusebenza njengezingxenye ezibalulekile ekugcinweni nasekwakheni imishini yezimboni esebenza ngaphansi kwezimo zemvelo ezimbi kakhulu.
Isikhathi sokuthunyelwe: Septhemba-09-2025