Intshayelelo
Kwimveliso yesinyithi kunye nemveliso yokuvelisa, iI-MFDC (i-Medium Frequency Direct Direct yangoku) i-spot weldersisixhobo esiyimfuneko sokujoyina amacandelo esinyithi ngenxa yokusebenza kwayo okuphezulu kunye nokusebenza okuchanekileyo kwe-welding. Njengenxalenye engundoqo ye-spot welder, ukusebenza kwe-electrode kunye nomgangatho ochaphazela ngokuthe ngqo iziphumo ze-welding kunye nokusebenza kakuhle kwemveliso. Ke, zeziphi iimfuno eziphambiliMFDC indawo yokuweldaii-electrodes? Eli nqaku liza kubonelela ngo{0}}uphononongo olunzulu ukusuka kwimilinganiselo emininzi.
- Ukukhethwa kwezinto eziphathekayo kunye noKuhlala ixesha elide
Okokuqala, ukukhetha izinto ze-electrode kubalulekile. Kuba i-electrode iphantsi kobushushu obuphezulu, uxinzelelo oluphezulu, kunye nokukhukuliseka rhoqo kwe-arc ngexesha lenkqubo ye-welding, izinto eziphathekayo kufuneka zibe ne-conductivity elungileyo yombane, indawo yokunyibilika ephezulu, kunye nokuzinza okugqwesileyo kwe-thermal. Izinto eziqhelekileyo ze-electrode ziquka ii-alloys zethusi kunye ne-chromium zirconium yobhedu. Ezi zixhobo azidlulisi ngokufanelekileyo kuphela i-welding current kodwa zigcina ubomi obude benkonzo phantsi kweemeko zokusebenza ezinzima.
- Ukuchaneka koMda kunye noYilo lweMilo
Ukuchaneka komlinganiselo we-electrode kuchaphazela ngokuthe ngqo umgangatho we-welded joint. Electrodes forAbashiseli bamabala beMFDCkufuneka kusetyenzwe ngokungqongqo ngokweemfuno zoyilo ukuqinisekisa ukuchaneka kweeparamitha ezinje ngobubanzi, ubude, kunye netaper. Ngaxeshanye, uyilo lokumila kwe-electrode kufuneka luphuculwe ngokusekwe kwiimfuno ze-welding, ezifana nokwamkela i-engile ye-taper efanelekileyo ukuphucula usasazo lwangoku kunye nokunciphisa iziphene ezifana ne-welding spatter kunye ne-craters.
- Ukuqhuba koMbane kunye ne-Thermal Conductivity
Ukuqhuba kakuhle kombane yenye yeemfuno ezisisiseko zee-electrode. I-electrodes ephezulu kakhulu iqinisekisa ukuba i-welding current ihanjiswa ngokukhawuleza kwaye ngokulinganayo kwindawo ye-welding, ngaloo ndlela iphucula ukusebenza kakuhle kunye nomgangatho. Ukongezelela, i-electrodes kufuneka ibe ne-conductivity efanelekileyo ye-thermal yokuchitha ukushisa okwenziwa ngexesha lenkqubo ye-welding ngexesha elifanelekileyo, ukukhusela ukushisa, ukuguqulwa, okanye umonakalo.
- Nxiba ukuxhathisa kunye nokuNxina nokuMhlwa
Ngexesha lemisebenzi yokuwelda ixesha elide, umphezulu we-electrode uphantsi kokhukuliseko lwe-arc kunye neempembelelo ezivela kumathontsi entsimbi, ke kufuneka ube nokunganyangeki okuphezulu. Ngelo xesha, ekubeni i-welding environment ingaba ne-corrosive gases okanye i-liquids, i-electrode kufuneka ibe ne-corrosion resistance resistance ukuze kuqinisekiswe ukusebenza okuzinzileyo phantsi kweemeko ezinzima.
- UkuLula koTshintsho kunye nokuGcina
Ukwandisa ukusebenza kakuhle kwemveliso kunye nokunciphisa iindleko zokugcina, uyilo lweMFDC indawo yokuweldai-electrodes kufuneka iququzelele ukutshintshwa kunye nokugcinwa lula. Oku kubandakanya ukwamkela iindlela zoqhagamshelo ezisemgangathweni, ukubonelela ngezixhobo ezifanelekileyo zokuqhawula, kunye nokubonelela ngezikhokelo zogcino oluneenkcukacha. Ngaphezu koko, umjikelo wokutshintshwa kwe-electrode kufuneka usekwe ngokufanelekileyo ngokusekelwe kwiimeko ezichanekileyo zesicelo ukuqinisekisa umgangatho ozinzileyo we-welding kunye nokwandisa ukusebenza kakuhle kwemveliso.
Isishwankathelo, ii-electrode ze-welder ze-MFDC kufuneka zihlangabezane neemfuno ezininzi, kubandakanywa ukuqina kwemathiriyeli, ukuchaneka komdanso, ukuhanjiswa kakuhle, ukunxitywa kunye nokuxhathisa umhlwa, kunye nokulula kokutshintshwa kunye nokugcinwa. Njengeengcali zokuthengisa kunye nokukhuthaza, kufuneka siqonde ngokunzulu ezi ngongoma zobugcisa kwaye sigxininise ukubaluleka komgangatho we-electrode kwimiphumo ye-welding ngexesha lokunyusa, ukunceda abathengi bakhethe izisombululo ezifanelekileyo kunye nezisebenzayo ze-welding.
