01 Umxhuzulane wethontsi elinyibilikisiweyo
Nayiphi na into iya kuba notyekelo lokudilika ngenxa yomxhuzulane wayo. Kwi-welding flat, ubunzima be-droplet yensimbi etyhidiweyo ikhuthaza ukuguqulwa kwe-droplet etyhidiweyo. Nangona kunjalo, kwi-welding ethe nkqo kunye ne-overhead welding, ubunzima be-droplet etyhidiweyo ithintela ukutshintshwa kwe-droplet etyhidiweyo ukuya kwi-pool etyhidiweyo kwaye ibe ngumqobo.
02 Uxinzelelo lomphezulu
Njengolunye ulwelo, isinyithi solwelo sinoxinzelelo lomphezulu, oko kukuthi, xa kungekho mandla angaphandle, indawo engaphezulu yolwelo iya kuncitshiswa kwaye icuthelwe kwisangqa. Kwisinyithi solwelo, ukuxinana komphezulu kwenza intsimbi etyhidiweyo ibengqukuva.
Emva kokuba i-electrode metal inyibilika, isinyithi sayo solwelo asiwi ngokukhawuleza, kodwa senza i-droplet engqukuva ejingayo ekupheleni kwe-electrode phantsi kwesenzo soxinzelelo lomphezulu. Njengoko i-electrode iqhubeka nokunyibilika, umthamo wethontsi elityhidiweyo liyaqhubeka likhula de amandla asebenza kwithontsi elityhidiweyo adlule uxinzelelo phakathi kojongano lwethontsi elinyibilikisiweyo kunye nombindi wokuwelda, kwaye ithontsi elityhidiweyo liya kugqabhuka kumke kumbindi wokuwelda. kunye nokutshintshela echibini elityhidiweyo. Ke ngoko, ukuxinezeleka komphezulu akuhambisani notshintsho lwamathontsi atyhidiweyo kwi-welding ecaba.
Nangona kunjalo, ukunyanzeliswa komphezulu kunenzuzo ekugqithiseni amathontsi atyhidiweyo xa u-welding kwezinye iindawo ezifana ne-overhead welding. Okokuqala, isinyithi sechibi esityhidiweyo sijinga sijonge phantsi kwi-weld phantsi kwesenzo soxinzelelo lomphezulu kwaye akukho lula ukuvuza;
Okwesibini, xa ithontsi elinyibilikileyo elisekupheleni kwe-electrode lidibana nesinyithi sedama elinyibilikisiweyo, ithontsi elityhidiweyo liya kutsalelwa kwidama elityhidiweyo ngenxa yesenzo soxinzelelo lomphezulu lwedama elinyibilikisiweyo.
Okukhona uxinezeleko olungaphezulu komphezulu, kokukhona likhulu ithontsi elinyibilikisiweyo ekupheleni kondoqo we-welding. Ubungakanani boxinzelelo lomphezulu bunxulumene nezinto ezininzi. Ngokomzekelo, ubukhulu be-diameter ye-electrode, inkulu ukunyanzeliswa komphezulu we-droplet etyhidiweyo ekupheleni kwe-electrode;
Ukuphakama kweqondo lobushushu bentsimbi engamanzi, kokukhona kuncinci ukutsalwa komphezulu wayo. Ukongeza i-oxidizing gas (Ar-O2 Ar-CO2) kwigesi ekhuselayo kunokunciphisa kakhulu ukuxinana komphezulu wesinyithi solwelo, okulungele ukusekwa kwamasuntswana amahle atyhidiweyo ukuze adluliselwe echibini elityhidiweyo.
03 Amandla ombane wombane (amandla ombane wokufinyela)
Abachasi bayatsala, ke aba baqhubi babini batsala omnye komnye. Amandla atsala aba baqhubi babini abizwa ngokuba yi-electromagnetic force. Isalathiso sisuka ngaphandle ukuya ngaphakathi. Ubukhulu bamandla ombane we-electromagnetic bulinganiswe nemveliso yemisinga yabaqhubi ababini, oko kukuthi, ubukhulu be-current edlula kwi-conductor, ubukhulu be-electromagnetic force.
Xa sidibanisa, sinokujonga i-welding wire kunye ne-droplet ye-liquid ekupheleni kocingo lwe-welding njengoko yenziwe ngabaqhubi abaninzi abaphetheyo ngoku.
Ngale ndlela, ngokomgaqo okhankanywe ngasentla we-electromagnetic effect, akukho nzima ukuqonda ukuba i-welding wire kunye ne-droplet nazo ziphantsi kwe-radial contraction forces ukusuka macala onke ukuya embindini, ngoko kuthiwa yi-electromagnetic compression force.
I-electromagnetic compression force yenza ukuba i-cross-section ye-welding rod ithande ukushwabana. I-electromagnetic compression force ayinayo impembelelo kwindawo eqinileyo yentonga ye-welding, kodwa inempembelelo enkulu kwintsimbi engamanzi ekupheleni kwentonga ye-welding, ibangela ukuba i-droplet yenze ngokukhawuleza.
Kwidrophu yentsimbi engqukuva, amandla ombane asebenza ngokuthe nkqo kumphezulu wawo. Indawo enoxinano olukhulu lwangoku iya kuba yidayamitha encinci yedropha, eya kuba yindawo apho amandla oxinzelelo lwe-electromagnetic asebenza kakhulu.
Ke ngoko, njengoko intamo ngokuthe ngcembe iyancipha, ukuxinana kwangoku kuyanda, kwaye amandla oxinzelelo lwe-electromagnetic nawo ayanda, nto leyo ebangela ukuba idroplet etyhidiweyo ihlukane ngokukhawuleza ukusuka ekupheleni kwe-electrode kunye nokutshintshela kwidama elityhidiweyo. Oku kuqinisekisa ukuba i-droplet etyhidiweyo inokutshintshela ngokutyibilikayo ekunyibilikeni nakweyiphi na indawo.
Izixhobo zokuwelda iXinfa zineempawu zomgangatho ophezulu kunye nexabiso eliphantsi. Ngeenkcukacha, nceda undwendwele:Abavelisi beWelding & Cutting-China Welding & Cutting Factory & Suppliers (xinfatools.com)
Kwiimeko ezimbini ze-welding ephantsi yangoku kunye ne-welding, impembelelo ye-electromagnetic compression force kwi-droplet transition yahlukile. Xa i-welding yangoku iphantsi, amandla e-electromagnetic amancinci. Ngeli xesha, isinyithi se-liquid ekupheleni kocingo lwe-welding ikakhulu sichatshazelwa yimikhosi emibini, enye i-tension surface kunye ne-gravity.
Ngoko ke, njengoko ucingo lwe-welding luqhubeka lunyibilika, umthamo we-droplet ye-liquid exhonywe ekupheleni kwentambo ye-welding iyaqhubeka ikhula. Xa umthamo unyuka ukuya kumlinganiselo othile kwaye ubunzima bawo bukwanele ukunqoba ukunyanzeliswa komphezulu, i-droplet iya kuhlukana nentambo ye-welding kwaye iwele kwi-pool etyhidiweyo phantsi kwesenzo sobunzima.
Kule meko, ubukhulu be-droplet buhlala bukhulu. Xa i-droplet enkulu kangaka idlula kwi-gap ye-arc, i-arc ihlala ifutshane-ijikelezwe, ibangele ukutshiza okukhulu, kwaye ukuvutha kwe-arc kungazinzi kakhulu. Xa i-welding yangoku inkulu, i-electromagnetic compression force inkulu.
Ngokwahlukileyo koko, indima yomxhuzulane incinci kakhulu. Ithontsi yolwelo ikakhulu itshintshela kwidama elinyibilikisiweyo elinamathontsi amancinci phantsi kwentshukumo yamandla ombane wombane, kwaye umkhombandlela womelele. Nokuba yeyiphi na indawo yewelding ecaba okanye i-overhead welding, i-droplet metal isoloko itshintsha ukusuka kwi-welding wire ukuya kwi-axis etyhidiweyo ecaleni kwe-arc axis phantsi kwesenzo samandla oxinzelelo lwemagnethi.
Ngexesha le-welding, ukuxinana kwangoku kwi-electrode okanye ucingo ngokuqhelekileyo kukhulu, ngoko ke amandla e-electromagnetic angamandla amakhulu akhuthaza ukutshintshwa kwe-droplet etyhidiweyo ngexesha le-welding. Xa kusetyenziswa intonga yokukhusela igesi, ubukhulu be-droplet etyhidiweyo ilawulwa ngokulungelelanisa ubuninzi be-welding current, eyona ndlela iphambili yeteknoloji.
I-Welding ngamandla ombane ojikeleze i-arc. Ukongeza kwezi ziphumo zikhankanywe ngasentla, kunokuvelisa enye i-force, eyona nto inamandla okwenziwa ngokusasazwa okungafaniyo kwamandla ombane.
Ngenxa yokuba ingxinano yangoku yentsimbi ye-electrode inkulu kunoxinaniso lwe-weldment, amandla emagnethi aveliswa kwi-electrode makhulu kunomfutho wemagnethi owenziwe kwiweldment, ngoko ke amandla entsimi aveliswa ecaleni kwendlela yobude be-electrode. .
Isalathiso saso sisuka kwindawo enomfutho wemagnethi ephezulu (i-electrode) ukuya kwindawo ene-low magnetic field intensity (weldment), ngoko ke kungakhathaliseki ukuba yintoni na indawo ye-weld, isoloko inceda ekutshintsheni ukunyibilika. ithontsi ukuya echibini elityhidiweyo.
04 Uxinzelelo lwepali (amandla endawo)
Iinqununu ezihlawulisiweyo kwi-arc ye-welding ziyi-electrons kunye nee-ion ezintle. Ngenxa yesenzo sentsimi yombane, umgca we-electron uhambela kwi-anode kunye neeoni ezilungileyo zihamba ukuya kwi-cathode. Ezi ngqungquthela ezihlawulisiweyo zingqubana kunye neendawo ezikhanyayo kwiipali ezimbini kwaye zenziwe.
Xa i-DC ixhunyiwe ngokufanelekileyo, uxinzelelo lwee-ion ezichanekileyo zithintela ukutshintshwa kwe-droplet etyhidiweyo. Xa i-DC idityaniswe umva, luxinzelelo lwee-electron oluthintela ukutshintshwa kwe-droplet etyhidiweyo. Ekubeni ubunzima bee-ion ezintle bukhulu kunobo bee-electron, uxinzelelo lwe-ion flow flow likhulu kunolo lwe-electron flow.
Ngoko ke, kulula ukuvelisa inguqu ye-particle emihle xa uxhulumaniso lwe-reverse luxhunyiwe, kodwa akulula xa uxhulumaniso oluhle luxhunyiwe. Oku kungenxa yoxinzelelo lweepali ezahlukeneyo.
05 Amandla okuvuthuza kwerhasi (amandla okuhamba kweplasma)
Kwi-welding ye-arc ye-manual, ukunyibilika kwe-electrode coating lags kancinane emva kokunyibilika kwe-welding core, okwenza icandelo elincinci "lomkhono wexilongo" omile ongekanyibiliki ekupheleni kwengubo.
Kukho inani elikhulu legesi eliveliswa ngokuchithwa kwe-coating gasifier kunye ne-CO gas eyenziwa yi-oxidation yezinto zekhabhoni kwi-welding core kwi-casing. Ezi gesi zanda ngokukhawuleza ngenxa yokufudunyezwa kubushushu obuphezulu, kwaye zigxalathelana ngakwicala lebhokisi elinganyibilikiyo ngendlela ethe ngqo (ethe tye) nezizinzileyo, zivuthela amathontsi atyhidiweyo kwidama elityhidiweyo. Kungakhathaliseki ukuba indawo ye-weld injani na, lo moya uya kuba luncedo ekutshintsheni kwesinyithi esityhidiweyo.
Ixesha lokuposa: Aug-20-2024
