Ukwandiswa okomileyo
Ukuhamba kwegesi L=[(10-12)d] L/min
Ubude bombhobho oqhubayo wentambo bubude bokunwebeka okomileyo. Ifomula eqhelekileyo ye-empirical iphindwe ka-10-15 ubukhulu bombhobho wentambo L = (10-15) d. Xa umgangatho umkhulu, uba mkhulu kancinci. Inkcazo incinci, incinci kancinci.
Ukolula okomileyo kude kakhulu: Xa ubude bentambo yokuwelda bukhula kakhulu, kokukhona ubushushu bokumelana kwentambo yokuwelda bukhula, kokukhona isantya sokunyibilika kwentambo yokuwelda sikhawuleza, nto leyo enokubangela ukuba intambo yokuwelda idibane ibe ngamacandelo, itshise, inyibilike ubunzulu, kwaye itshise i-arc engaguqukiyo. Kwangaxeshanye, isiphumo sokukhusela igesi asilunganga.
Ulusu olomileyo lufutshane kakhulu: kulula ukulutshisa ulwelo oluqhuba umoya. Kwangaxeshanye, ulwelo oluqhuba umoya kulula ukulubamba ucingo xa lushushu. Ama-splash adla ngokuyivala ulwelo aze anyibilike kakhulu.
Itheyibhile 1 Ulwalamano oluhambelanayo phakathi kobude bangoku nobomileyo
| Umsinga wokuwelda (A) | ≤200A | 200-350A | 350-500A |
| Ukwandiswa okomileyo (mm) | 10-15mm | 15-20mm | 20-25mm |
Ukuhamba kwegesi
Ukuhamba kwegesi L=[(10-12)d] L/min
Inkulu kakhulu: idala i-turbulence, nto leyo ebangela ukungena komoya kunye nee-pores, ingakumbi kwizinto ezichaphazeleka yigesi (ezifana nee-aluminium alloys, ii-magnesium alloys, njl.njl., ezihlala ziyi-internal pores)
Incinci kakhulu: ukhuseleko olubi lwegesi (ungabhekisa kwiimeko ezilinganiselweyo, oko kuthetha ukuba akukho gesi ikhuselayo, kwaye iimbobo ezimile okwehoneycomb zidla ngokubonakala).
Isantya somoya asichaphazeleki xa singaphezulu kwe-≤2m/s.
Amanyathelo kufuneka athathwe xa isantya somoya singaphezulu kwe-2m/s.
① Nyusa izinga lokuhamba kwegesi.
② Thatha amanyathelo okumelana nomoya.
Qaphela: Xa kuphuma umoya ovuzayo, kuza kuvela imingxunya yomoya kwi-weld. Indawo yokuvuza komoya kufuneka iphathwe kwaye ayinakongezwa ngokunyusa izinga lokuhamba kwamanzi. Akukho ndlela yokulungisa imingxunya yomoya ngaphandle kokuyisusa. Iya kuba yi-weld ngakumbi.
Amandla e-Arc
Xa ubukhulu beepleyiti ezahlukeneyo, iindawo ezahlukeneyo, iinkcukacha ezahlukeneyo, kunye neengcingo ezahlukeneyo zokuwelda, kukhethwa amandla ahlukeneyo ee-arc.
Inkulu kakhulu: i-arc eqinileyo, i-splash enkulu.
Incinci kakhulu: i-arc ethambileyo, i-sprash encinci.
Amandla oxinzelelo
Iqine kakhulu: Intambo yokuwelda ayilunganga, indlela esetyenziswa ngayo intambo ayizinzanga, kwaye kulula ukubangela ukuxinana kweentambo kunye nokwandisa ukuchaphaza.
Ikhululekile kakhulu: Intambo yokuwelda iyatyibilika, intambo ithunyelwa kancinci, intambo yokuwelda ayizinzanga, kwaye iya kubangela ukutshiza.
I-voltage yangoku
Ifomula yobungqina yobudlelwane phakathi kwamandla angoku kunye ne-voltage ye-welding ekhusela igesi: U=14+0.05I±2
Umsinga wokuwelda kufuneka ukhethwe ngokuchanekileyo ngokusekelwe kubukhulu bezinto ezisisiseko, imo yokudibanisa kunye nobubanzi bentambo. Ngexesha lokutshintsha kwesekethe emfutshane, zama ukukhetha umsinga omncinci ngelixa uqinisekisa ukungena, kuba xa umsinga umkhulu kakhulu, kulula ukubangela ukuba ichibi lokunyibilika liqengqeleke, aligcini nje ngokutshiza likhulu, kodwa nokubumba kukwabimbi kakhulu.
I-voltage yokuwelda kufuneka yenze ulungelelwaniso oluhle kunye nomsinga. I-voltage yokuwelda iphezulu kakhulu okanye iphantsi kakhulu, nto leyo eya kubangela ukutshiza. I-voltage yokuwelda kufuneka inyuke ngokonyuka komsinga wokuwelda kwaye kufuneka yehle ngokokwehla komsinga wokuwelda. I-voltage efanelekileyo yokuwelda ngokubanzi iphakathi kwe-1-2V, ngoko ke i-voltage yokuwelda kufuneka ilungiswe ngononophelo.
Umsinga mkhulu kakhulu: ubude be-arc bufutshane, i-splash inkulu, imvakalelo yesandla esiphezulu, ukuphakama okuseleyo mkhulu kakhulu, kwaye amacala omabini awadibani kakuhle.
I-voltage iphezulu kakhulu: i-arc inde, i-sprash inkulu kancinci, i-current ayizinzanga, ukuphakama okuseleyo kuncinci kakhulu, i-welding ibanzi, kwaye i-arc itsha lula.
Imiphumo yesantya esikhawulezayo sokuwelda ekuwelding
Isantya sokudibanisa sinempembelelo ebalulekileyo kumgangatho wangaphakathi kunye nenkangeleko ye-weld. Xa i-voltage yangoku ingaguquki:
Isantya sokudibanisa sikhawuleza kakhulu: ubunzulu bokunyibilika, ububanzi bokunyibilika, kunye nokuphakama okushiyekileyo kuyancitshiswa, kwenze i-convex okanye i-hump welding bead, kwaye iinzwane ziluma inyama. Xa isantya sokudibanisa sikhawuleza kakhulu, isiphumo sokukhusela igesi siya konakala kwaye ii-pores ziveliswa lula.
Kwangaxeshanye, isantya sokupholisa sentsimbi yokuwelda siya kukhawuleziswa ngokufanelekileyo, ngaloo ndlela kunciphisa ukuqina kwentsimbi yokuwelda. Kuya kubangela ukuba kuvele umphetho phakathi kwentsimbi yokuwelda, nto leyo ebangela ukuba i-molding ibe mbi.
Isantya sokudibanisa sicotha kakhulu: ichibi elinyibilikisiweyo liba likhulu, intsimbi yokudibanisa iba banzi, kwaye iinzwane zokudibanisa ziyaphuphuma. Igesi echibini elinyibilikisiweyo ikhutshwa lula ngenxa yesantya sokudibanisa esicothayo. Ulwakhiwo lwesinyithi lwe-weld lutyebile okanye lutshiswe ngenxa yobushushu obuphezulu.
Xa ukhetha iiparameter zokuwelda, kufuneka kulandelwe le miqathango ilandelayo: i-weld intle ngenkangeleko kwaye ayinaziphene ezifana nokutsha, ukunqunyulwa, iimbobo, imifantu, njl. Ubunzulu bokunyibilika bulawulwa ngaphakathi koluhlu olufanelekileyo. Inkqubo yokuwelda izinzile kwaye ukutshiza kuncinci. Bekukho isandi sokurhashaza ngexesha lokuwelda. Kwangaxeshanye, kufuneka kufezekiswe imveliso ephezulu.
Ixesha leposi: Matshi-10-2025