I-electrode ngokuyintloko yintambo yesinyithi egqunywe ngentsimbi kwaye kufuneka yenziwe ngezinto ezifana neempawu kunye nokwakheka kwesinyithi esidityanisiweyo, kwaye kukho izinto ezininzi ezichaphazela ukukhetha i-electrode efanelekileyo kwiprojekthi yakho ethile.
Nangona ii-electrode ze-arc zesinyithi ezikhuselweyo (SMAW) okanye "ezinamathelayo" zinokusetyenziswa kwaye zibe yinxalenye ye-weld, ezinye ii-electrode (ezifana nezo zisetyenziselwa i-TIG welding) azisetyenziswa, oko kuthetha ukuba azinyibiliki kwaye zibe yinxalenye ye-weld. Ukwahlulwa komthungo, kwezi meko, ukusetyenziswa kwe-electrode kuyafuneka.
Thina apha e-Eng-weld siyazi ukuba ukukhetha i-electrode efanelekileyo kubalulekile ekuqiniseni amandla okuwelda, umgangatho wokuwelda, ukunciphisa ukuchitheka kunye nokucoca.
Ii-electrode ze-cellulose zii-electrode zokuwelda ezigqunywe nge-sheath equlethe izinto eziphilayo. Ngokwesiqhelo malunga ne-30% yobunzima be-coating yi-cellulose, kodwa kwezinye iindawo zehlabathi i-cellulose kunye nomgubo womthi zingongezwa kwi-coating ukunciphisa umxholo we-cellulose ococekileyo.
Iikhompawundi ezahlukeneyo ze-organic kwi-electrodes ziya kubola kwi-arc ukuze zenze i-carbon dioxide, i-carbon monoxide kunye ne-hydrogen, zonke ezo zinto zonyusa i-voltage ngaphakathi kwi-arc, nto leyo ebangela i-arc enamandla nanzima. Ngoko ke, ii-electrode ze-cellulose zinokungena nzulu ukuya kuthi ga kwi-70% kunee-electrode ezihambelanayo ezine-current rating efanayo.
Ngokwesiqhelo yenziwa ngengubo ebhityileyo okanye ephakathi, nangona oku kuvelisa i-slag enokususwa emva kokuba inkqubo yokudibanisa igqityiwe, oku kunokubangela ilahleko enkulu yokuchitha. Nangona kunjalo, amandla okudibanisa ezantsi ngokuthe nkqo kunye nokukwazi ukungena kwale electrode kulungile kakhulu ngenxa yokuzaliswa kwesithuba kwingubo.
I-electrode ye-hydrogen ephantsi ngokusisiseko yi-gas shielded arc welding (SMAW) enokutyiwa enomxholo wamanzi ongaphantsi kwe-0.6% xa kuthelekiswa nomxholo wamanzi we-4-6% we-cellulosic electrodes.
Ngokwesiqhelo, ii-electrode ze-hydrogen ezisezantsi ezifana ne-electrode yentonga ye-E7018 zibonelela abasebenzisi nge-spatter ephantsi kunye ne-arc egudileyo, ezinzileyo nethuleyo. Ezi mpawu zenza ezi electrode zibe lukhetho oluhle kakhulu kubawelda abanamava kunye nabaqalayo. Iimpawu zezi electrode zesinyithi zokuzalisa zibonelela umwelda ngolawulo oluhle lwe-arc kwaye zinciphisa imfuneko yokucoca emva kokuwelda.
Ngokungafaniyo nezinye ii-electrode ezifana ne-E6010 okanye i-E6011, ii-electrode ze-hydrogen eziphantsi zibonelela ngokubeka okuphezulu kunye namazinga okungena, okuvumela umthungi ukuba ongeze isinyithi esingakumbi kwijoyinti nangaliphi na ixesha, okuphucula amandla okuthungwa kunye nokuphepha iziphene zokuthungwa ezifana nokungabikho kokungena.
Ngokubanzi, ii-electrode zentsimbi ethambileyo zibonelela nge-arc ezolileyo nezinzileyo enokungena okuncinci, nto leyo eyenza ukuba zilungele ukunqumla imingxunya ebanzi kunye nokusetyenziswa kwephepha elincinci. Nangona kunjalo, kukho iintlobo ezahlukeneyo zee-electrode zentsimbi ethambileyo, nganye ineempawu ezahlukeneyo kwaye ngaloo ndlela ifanelekile ngakumbi kwizicelo ezahlukeneyo.
Umzekelo, i-grade 6013 yi-electrode yentsimbi ethambileyo esetyenziselwa injongo eqhelekileyo enika ukungena nzulu ngelixa igcina i-arc egudileyo nezinzileyo. I-arc kulula ukuyivuselela, umthungo wokuwelda umhle, ukuchitheka kuncinci, i-slag kulula ukuyilawula, ifanelekile ukuwelda ngokuthe nkqo.
Kwelinye icala, i-electrode ye-arc ye-7018 yi-electrode yentsimbi ethambileyo eyenzelwe ukuwelda izinto zentsimbi yekhabhoni enamandla aphezulu. Le electrode idla ngokusetyenziselwa ukuwelda ngokwesakhiwo ngenxa yokumelana nokuqhekeka kwe-weld. Kodwa oku kudala i-slag eninzi, engafanelekanga ukuwelda ngokuthe nkqo.
I-electrode yokugqibela yentsimbi ethambileyo esiza kuyibona yi-6011. Le electrode enzulu eguquguqukayo inika i-arc egudileyo nezinzileyo xa kudityaniswa intsimbi ethambileyo egalelweyo kunye nezinye iintsimbi eziphantsi kwe-alloy. Ukwaleka kwayo kudala i-arc enamandla yokungena ngokunzulu, kwaye umaleko we-slag ubhityile kwaye kulula ukuwususa.
Njengamanye ama-electrode esiwabonileyo apha ngasentla, ama-electrode entsimbi engagqwaliyo aza kwiindidi ezahlukeneyo, nganye yahlukile kancinci kweyangaphambili.
Apha sijonga iintlobo ezintathu ezahlukeneyo zee-electrode zentsimbi engagqwaliyo, ezingama-308, ezingama-309 kunye nezingama-316, kunye nexesha lokusebenzisa zona.
Ukuba usebenzisa ii-grades 301, 302, 304, 305 kunye nee-casting alloys CF-3 kunye ne-CF8, sicebisa ukuba usebenzise i-308L, kuquka ii-electrodes ze-ER308LSi. Ezi electrodes zentsimbi engagqwaliyo zilungele ii-austenitic stainless steels, kodwa kwizicelo ezinje ngokuvelisa umbane, sicebisa i-electrode ye-308H njengoko le electrode yekhabhoni ephezulu inika ukumelana okungcono kokuqhekeka kumaqondo obushushu aphezulu.
Xa udibanisa intsimbi ethambileyo okanye ii-alloys zentsimbi ethambileyo kwintsimbi engatyiwayo, sebenzisa i-309L, kuquka i-ER309LSi. Oku kuyasebenza nasekudibaniseni iintsimbi ezahlukeneyo ezingatyiwayo ezifana nentsimbi engatyiwayo ye-409 okanye ye-304L. Ukongeza koku, kufuneka zisetyenziswe ukubopha iintsimbi ezisisiseko ze-309.
Xa kusetyenziswa iintsimbi ezisisiseko eziyi-316L kunye ne-316 kunye ne-CF-8m kunye ne-CF-3M, yi-316L kuphela ekufuneka isetyenziswe njengentsimbi yokuzalisa, kuquka ne-ER317LSi.
Ezinye izicelo ze-308L zinokuthatha indawo ye-309L njengentsimbi yokuzalisa kuba azidingi i-molybdenum ngokungafaniyo nezicelo ze-316 okanye ze-316L ezifuna i-molybdenum ngoko ke awunakutshintsha i-309 nge-316.
Njengoko sibonile ngasentla, kukho iintlobo ngeentlobo zee-electrode ezikhoyo. Nganye kuzo ineempawu ezahluke kancinci kwaye ngenxa yoko yahlukile kancinci kwaye ineempawu ezizodwa. Xa kusenziwa nawuphi na umsebenzi wokulungisa nokulungisa, kufuneka kuthathwe ingqalelo ukuqinisekisa ukuba ii-electrode ezisetyenzisiweyo zineempawu ezifunekayo.
Okokuqala, misela ukuba loluphi uhlobo lwesinyithi oza kululungisa okanye ukululungisa. Emva koko kufuneka uthathe isigqibo sokuba ufuna i-electrode eqhelekileyo okanye i-electrode eneempawu ezikhethekileyo. Wakuba unalo lonke olu lwazi ungaqala ukunyibilikisa, ukuba awusebenzisi kwaye usebenzise ii-electrode ezingalunganga, i-solder yakho iya kusilela okanye ungatshisa nje isinyithi osebenza ngaso.
Журнал Uveliso & nobuNjineli, сокращенно MEM, является ведущим инженерным журналом спектр отраслевых новостей, таких как: контрактное производство, 3D-печать, структурное и гражданское строителькарокаство, автомоников, техника, морская техника. IMagazini yeManufacturing & Engineering, i-MEM ngamafutshane, yimagazini yobunjineli ehamba phambili e-UK kunye nomthombo weendaba zokuvelisa ezigubungela uluhlu olubanzi lweendaba zoshishino ezifana nokuveliswa kwezivumelwano, ukuprinta kwe-3D, ubunjineli bezakhiwo kunye nobokwakha, iimoto, i-aerospace, kunye ne-marine., Ukwakhiwa koololiwe, uyilo lwemizi-mveliso, uyilo lweCAD kunye noyilo olucwangcisiweyo.