Ukukhetha izixhobo zokubonelela ngomgangatho ophezulu kunye nemveliso ekusebenzeni kwe-welding kudlula nje umthombo wamandla okanye umpu we-welding - izinto ezisetyenziswayo zidlala indima ebalulekileyo, ngokunjalo. Iingcebiso zoqhagamshelwano, ngokukodwa, zingenza umahluko omkhulu phakathi kokuqhuba inkqubo esebenzayo kunye nokunyusa ixesha lokuphumla ukulungisa iingxaki. Ukukhetha ingcebiso yoqhagamshelwano echanekileyo yomsebenzi kunokuchaphazela inzuzo yokusebenza kwe-welding.
Iingcebiso zoqhagamshelwano zinoxanduva lokudlulisa i-welding current kwi-wire njengoko idlula ukudala i-arc. Ngokufanelekileyo, ucingo kufuneka lutyhutyhe ngokuxhathisa okuncinci, ngelixa ugcina unxibelelwano lombane.
Iingcebiso zoqhagamshelwano zingenza umehluko omkhulu phakathi kokuqhuba inkqubo ye-welding esebenzayo kunye nokunyusa ixesha lokuphumla ukulungisa iingxaki, kwaye banokuchaphazela inzuzo yokusebenza kwe-welding.
Ngeso sizathu, kusoloko kubalulekile ukukhetha ingcebiso yoqhagamshelwano ekumgangatho ophezulu. Ngelixa ezi mveliso zinokuxabisa ngaphezulu kancinci kuneemveliso zodidi olungaphantsi, kukho ixabiso lexesha elide lokuchasa elo xabiso lokuthenga kwangaphambili.
Ngaphaya koko, iingcebiso zoqhagamshelwano ezikumgangatho ophezulu ziqhele ukwenziwa ngoomatshini ukuze kuqiniswe ukunyamezelana koomatshini, kudala uqhagamshelo olungcono lobushushu kunye nombane. Zisenokubonisa indawo egudileyo esembindini, ekhokelela ekukhuhlaneni okuncinci njengoko ucingo ludlula. Oko kuthetha ukutyiswa kocingo okungaguqukiyo ngokutsalwa kancinci, okuphelisa imiba enokubakho yobulunga.
Iingcebiso zoqhagamshelwano ezikumgangatho ophezulu nazo zinokunceda ukunciphisa ukutshisa (ukwenziwa kwe-weld ngaphakathi kwincam yoqhagamshelwano) kunye nokunceda ukukhusela i-arc ephosakeleyo ebangelwa ukungahambi kakuhle kombane. Bakwathanda ukuhlala ixesha elide.
Ukukhetha izinto ezifanelekileyo kunye nobukhulu bebhore
Iingcebiso zoqhagamshelwano ezisetyenziselwa i-semi-automatic MIG welding ngokuqhelekileyo zenziwe ngobhedu. Esi sixhobo sibonelela nge-thermal kunye ne-conductivity elungileyo yombane ukuvumela ukuhanjiswa kwangoku okuhambelanayo kwintambo, ngelixa lihlala lihlala ngokwaneleyo ukumelana nobushushu obuveliswa ngexesha lenkqubo ye-welding. I-robotic welding, ezinye iinkampani zikhetha ukusebenzisa iingcebiso ezinzima ze-chrome zirconium zoqhagamshelwano, njengoko ezi zinzima kunezobhedu kwaye zingcono ukumelana nokunyuka kwexesha le-arc yesicelo esizenzekelayo.
Kwiimeko ezininzi, ukusebenzisa ingcebiso yoqhagamshelwano ehambelana nobukhulu bocingo kukhokelela kwiziphumo ezilungileyo. Nangona kunjalo, xa ucingo lutyiswa kwigubu (umzekelo, ezo 500 pounds nangaphezulu) kunye/okanye xa usebenzisa ucingo oluqinileyo, incam yoqhagamshelwano enganeno ingaphucula ukusebenza kwewelding. Ngenxa yokuba ucingo oluvela kwigubu luthanda ukuphosa ngaphantsi, lutya ngencam yoqhagamshelwano ngoqhagamshelwano oluncinci okanye lungabikho - ukuba nebhore encinci ikhupha uxinzelelo olungakumbi kwintambo, idala ukuhanjiswa kombane okukhulu. Ukunciphisa ingcebiso yoqhagamshelwano, nangona kunjalo, kunokonyusa ukukhuhlane, okukhokelela ekutyaleni ucingo olugwenxa kwaye, ngokunokwenzeka, ukutshisa.
Ngokuchaseneyo, ukusebenzisa ingcebiso enkulu kunokunciphisa ukuhanjiswa kwangoku kunye nokunyusa amaqondo obushushu, nto leyo inokukhokelela ekutshisweni kocingo. Xa ungathandabuzi malunga nokukhetha ingcebiso yoqhakamshelwano yobungakanani obufanelekileyo, dibana nomvelisi othembekileyo osetyenziswayo okanye umthengisi welding.
Njengomsebenzi ogqwesileyo, soloko ujonga unxibelelwano phakathi kwencam yoqhagamshelwano kunye ne-gas diffuser ukuze uqiniseke ukuba ikhuselekile. Ngokufanelekileyo, uxhulumaniso olukhuselekileyo lunciphisa ukuxhathisa kombane okungakhokelela ekugqithiseni.
Ukuqonda ikhefu lengcebiso yoqhagamshelwano
I-recess yengcebiso yoqhagamshelwano ibhekiselele kwindawo yencam yoqhagamshelwano ngaphakathi kwi-nozzle kwaye yinto ebalulekileyo echaphazela umgangatho we-weld, imveliso kunye neendleko ekusebenzeni kwe-welding. Ngokukodwa, i-recess yengcebiso echanekileyo inokunciphisa ithuba lokutshiza okugqithisileyo, i-porosity kunye nokutshisa okanye ukulwa nezinto ezibhityileyo. Isenokunceda ukunciphisa ubushushu obukhazimlayo obunokubangela ukusilela kwencam yoqhagamshelwano.
Incam yencam yoqhagamshelwano ichaphazela ngokuthe ngqo ukuncamathela kocingo, okukwabizwa ngokuba kukwandiswa kwe-electrode. Okukhona ikhefu lilikhulu, kokukhona i-sticker ithatha ixesha elide kwaye iphezulu yombane. Ngenxa yoko, oku kwenza i-arc ingazinzi kancinci. Ngeso sizathu, eyona ntambo yokuncamathelayo yeyona imfutshane kakhulu evumelekileyo kwisicelo; ibonelela nge-arc ezinzileyo kunye nokungena okungcono kwe-low-voltage. Izikhundla zengcebiso yoqhagamshelwano yi-1/4-intshi yekhefu, i-1/8-intshi yokuphuma, igungxu kunye ne-1/8-intshi yolwandiso. Jonga kuMfanekiso 1 ngezicelo ezicetyiswayo kwisicelo ngasinye.
| Ikhefu / Ukwandiswa | Amperage | I-wire Stick-Out | Inkqubo | Amanqaku |
| 1/4-ngaphakathi. Ikhefu | > 200 | 1/2 - 3/4in. | Ukutshiza, i-high-current pulse | I-Metal-coreed wired, i-spray transfer, i-argon-rich exutywe igesi edibeneyo |
| 1/8-ngaphakathi. Ikhefu | > 200 | 1/2 - 3/4in. | Ukutshiza, i-high-current pulse | I-Metal-coreed wired, i-spray transfer, i-argon-rich exutywe igesi edibeneyo |
| Gubha | <200 | 1/4 - 1/2in. | Ixesha elifutshane, i-low-current pulse | Uxinzelelo lwe-argon ephantsi okanye i-100 yepesenti ye-CO2 |
| 1/8-ngaphakathi. Ulwandiso | <200 | 1/4 ngaphakathi. | Ixesha elifutshane, i-low-current pulse | Amalungu anzima ukufikelela |
Ukwandisa ubomi bengcebiso yoqhagamshelwano
Ukungaphumeleli kwengcebiso yoqhagamshelwano kunokukhokelela kwiimpembelelo ezininzi, kubandakanywa ukutshisa, ukunxitywa koomatshini kunye nombane, ubuchule bokusebenzisa i-welding engafanelekanga (umzekelo, ukuhluka kwe-angle yompu kunye ne-tip-to-work-distance [CTWD]), kunye nobushushu obuvela kwi imathiriyeli esisiseko, exhaphakileyo ekufikeleleni ngokungqongqo kwi-weld joints okanye kwiindawo ezivaliweyo.
Umgangatho wocingo olusetyenziswayo unokuchaphazela ubomi bonxibelelwano. Ucingo olukumgangatho ophantsi luhlala lune-cast engafunekiyo okanye i-helix enokubangela ukuba isondle ngokungahambi kakuhle. Oko kunokuthintela ucingo kunye nengcebiso yoqhagamshelwano ekuxhumaneni ngokufanelekileyo ngebhore, ngenxa yoko kubangele ukuhanjiswa okuphantsi kunye nokumelana nombane ophezulu. Le miba inokukhokelela ekungaphumelelini kwengcebiso yoqhagamshelwano kwangaphambi kwexesha ngenxa yobushushu obugqithisileyo, kunye nomgangatho ombi we-arc. Ukwandisa ubomi bamacebiso oqhagamshelwano, qwalasela oku kulandelayo:
• Sebenzisa iiroli ezifanelekileyo zokuqhuba ukuqinisekisa ukuba utyalo ngocingo olugudileyo.
• Yandisa isantya sokutya kweengcingo kunye nokwandisa i-CTWD ukunciphisa ukutsha.
• Khetha iingcebiso zoqhagamshelwano ezinomphezulu ogudileyo ukuthintela ukukrazuka kocingo.
• Sika i-MIG gun liner ibe kubude obuchanekileyo ukuze ucingo lungene kakuhle.
• Amaqondo asezantsi obushushu bokusebenza, ukuba kunokwenzeka, ukunciphisa ukuguga kombane.
• Sebenzisa iintambo zombane ezimfutshane xa kunokwenzeka ukufumana ukutya okugudileyo. Ukuba iintambo zamandla ezinde ziyimfuneko, zama ukunciphisa i-loops kuzo ukukhusela i-kinking.
Kwezinye iimeko, kunokuba lunqweneleka ukuguqula umpu we-MIG owenziwe ngamanzi ukuze uncede ukugcina izinto ezisetyenziswayo zangaphambili, kubandakanywa nesicatshulwa soqhagamshelwano, ukupholisa kunye nokusebenza ixesha elide.
Iinkampani kufuneka kwakhona zithathele ingqalelo ukulandelela ukusetyenziswa kweengcebiso zoqhagamshelwano, ziqaphele utshintsho olugqithisileyo kunye nokujongana ngokufanelekileyo kunye nezinye izilumkiso ezicetyiswayo. Ukujongana neli xesha lokuphumla kwakamsinya kunokuba mva kunokuya kude ekuncedeni iinkampani zinciphise iindleko ezingeyomfuneko kuluhlu lweempahla, ngelixa zikwaphucula umgangatho kunye nemveliso.
Ixesha lokuposa: Jan-04-2023
