Intsimbi yegalvanized isetyenziswa kakhulu kwimizi-mveliso yeemoto kunye nezixhobo zasekhaya ngenxa yokumelana nokugqwesa kwayo okugqwesileyo. Nangona kunjalo, ukugquma kwe-zinc kwintsimbi ye-galvanized kunika imingeni ekhethekileyo ngexesha le-welding. Abaninzi bayazibuza: ngaba umatshini wokuwelda ungabambisa intsimbi? Impendulo nguewe! Ayinakuphela nje ukuxhathisa oomatshini bokuwelda ukuwelda intsimbi, kodwa bajongana ngokusebenzayo nemiba ye-welding eqhelekileyo efana ne-porosity kunye nokutshiza, ibenze bahambe{2}}kwizixhobo zokuwelda intsimbi.
Imingeni yeNtsimbi yokuWelding
Owona mceli mngeni uphambili ekudibaniseni intsimbi enezinki ukwizinc. I-Zinc ineqondo eliphantsi lokubilisa (malunga ne-907 degree), nto leyo eyenza ukuba ibe ngumphunga ngexesha le-welding. Lo mphunga unokukhokelela ekwakhiweni kweepokotho zegesi (i-porosity), i-welds ebuthakathaka, kunye nesiphumo esibi se-welding. Iindlela zokuwelda zesiNtu zihlala zisokola koku, okukhokelela ekwandeni kweziphene kunye nokuncipha kwamandla okudibanisa.
Nangona kunjalo, ukuchasana noomatshini bokuwelda, kubandakanyaUmatshini wokuwelda wokugcina amandla , ziyilelwe ngokukodwa ukoyisa le miba. Aba matshini banikezela ngolawulo oluchanekileyo kwiiparamitha ze-welding, ezivumela ukuba zikwazi ukujongana nemingeni eyenziwa yintsimbi edibeneyo ngokufanelekileyo.
Umtshini we-Resistance Welding uyisombulula njani iNgxaki yeSimbi eGalvanized?
Oomatshini bokuwelda basebenzisa amanyathelo amathathu-inkqubo{1}}yokuqala, ukuwelda, kunye nokufudumeza{2}}ukulawula umaleko we-zinc kwintsimbi ekhandisiweyo. Nantsi indlela esebenza ngayo:
- Preheating Stage: Umatshini we-welding usebenzisa i-current encinci ukutshisa ngobumnene i-zinc layer, ibangele ukuba ikhuphe ngaphandle kokudala ukubunjwa kwegesi okanye i-splattering. Eli nyathelo linciphisa umngcipheko we-porosity.
- Inqanaba eliphambili le-Welding: Umatshini we-welding ke usebenzisa i-current ephezulu ukuqhuba i-weld engundoqo. Ngeli nqanaba, intsalela ye-zinc layer incinci, iqinisekisa i-welds eqinile, ecocekileyo.
- Inqanaba lokuthomalalisa: Ekugqibeleni, umatshini usebenzisa umbane ophantsi ngexesha lenqanaba lokufudumala ukukhulula nayiphi na ingcinezelo eyenziwe ngexesha lenkqubo ye-welding. Eli nyathelo linceda ukuphucula umgangatho jikelele kunye namandla e-weld.
Ngokulawula ngononophelo ukuhamba kwangoku kunye nexesha le-welding, umatshini we-Welding yokugcina amandla iqinisekisa ukuba i-zinc layer iphathwa ngokufanelekileyo, ivumela i-weld ecocekileyo neyithembekileyo kwintsimbi ye-galvanized.
Izinto eziluncedo eziPhambili zoKuxhathisa oomatshini bokuwelda beNtsimbi yeGalvanized
Oomatshini bokuwelda bokumelana balungele ukuwelda intsimbi eyenziwe ngesinyithi ngenxa yeempawu zabo eziphambili kunye nobuchule bokulawula:
- Ulawulo lwangoku oluchanekileyo: I-welding current inokulungiswa ngaphakathi koluhlu olubanzi ukuze ihambelane nobukhulu kunye neempawu zentsimbi. Ngokomzekelo, xa i-welding 1.0mm insimbi ye-galvanized, umatshini we-welding ngokuqhelekileyo usebenzisa i-preheat current ye-150A ye-5ms, ilandelwa yi-welding current ye-280A ye-10ms. Oku kuqinisekisa i-weld ekhuselekileyo necocekileyo, kunye nokutshiza okuncinci kunye ne-porosity.
- Digital Control Systems: Uninzi lwale mihla oomatshini be-welding beza bexhotyiswe ngeenkqubo zolawulo lwedijithali ezilungelelanisa ngokuzenzekelayo iiparamitha ngokusekelwe kubukhulu bezinto kunye nohlobo. Oku kuphelisa isidingo sokuhlengahlengiswa rhoqo kwezandla, okwenza inkqubo ye-welding isebenze kakuhle kwaye ihambelane.
- Ukuphuculwa koMgangatho weWeld: Ngokususa imingeni ehambelana ne-zinc layer, ukuxhathisa oomatshini be-welding baqinisekisa ukuba i-welds yomelele, igudileyo, kwaye iyathandeka. Oku kubenza bafaneleke ngokukodwa kwimizi-mveliso efuna{1}}umgangatho ophezulu we welds, njengokwenza iimoto kunye nokuveliswa kwezixhobo.
- Ukonyuka koMsebenzi: Ukuchaneka okunikezwa nguUmatshini wokuwelda wokugcina amandlayenza i-welding ekhawulezayo kwaye isebenze ngakumbi, enokunceda ukunciphisa amaxesha emveliso kunye nokwandisa imveliso. Oku kubaluleke ngakumbi-kwindawo yokwenziwa komthamo omkhulu apho isantya kunye nomgangatho zibalulekile zombini.
Iingcebiso zokuSebenza zokuWelding iNsimbi eGatiweyo
Ukufezekisa ezona ziphumo zibalaseleyo xa usebenzisa umatshini wokumelana nentsimbi yentsimbi, kukho izinto ezininzi ezibalulekileyo ekufuneka uzikhumbule:
- Coca uMphezulu: Phambi kwe-welding, kubalulekile ukuqinisekisa ukuba umphezulu wentsimbi ye-galvanized ucocekile. Nayiphi na ioli, i-rust, okanye i-contaminants inokuphazamisa inkqubo ye-welding kwaye ikhokelela kumalungu abuthathaka. Sebenzisa i-arhente yokucoca efanelekileyo ukususa nakuphi na ukungcola.
- Lungisa i-Electrode Pressure: Uxinzelelo olusetyenziswe yi-electrodes ye-welding kufuneka lulungiswe ngokucophelela. Uxinzelelo oluninzi lunokubangela ukuqhuma okukhulu kwe-zinc layer, ekhokelela kwiziphene. Ngokuchasene noko, uxinzelelo olungonelanga lunokubangela i-welds ebuthathaka. Uxinzelelo olufanelekileyo luqinisekisa uqhagamshelwano olufanelekileyo phakathi kwe-electrodes kunye nentsimbi ngaphandle kokubangela ukuqhuma kwe-zinc ngokugqithiseleyo.
- ULondolozo lwarhoqo: Ukugcinwa rhoqo komatshini wokuchasa, ngokukodwa i-electrodes, kubalulekile ukugcina ukusebenza kakuhle. Qinisekisa ukuba iingcebiso ze-electrode zicocekile kwaye zikhululekile kwi-buildup ukuphepha iziphumo ze-welding ezingahambelaniyo.
Isiphelo:
I-welder yendawo yokugcina ayinakukwazi nje ukukhwela isinyithi esinezinki, kodwa ikwabonelela ngesisombululo esisebenzayo kwimingeni eyenziwa yi-zinc layer. Ngolawulo oluchanekileyo lwangoku kunye nokukwazi ukulawula i-zinc vaporization, ukuxhathisa oomatshini be-welding baqinisekisa iintsimbi eziqinileyo, eziphakamileyo{1}eziphezulu. Ukuguquguquka kwazo, kudityaniswe neenkqubo zolawulo eziphucukileyo, kubenza babe lolona khetho lukhethwayo kumashishini afuna ukuwelda okuthembekileyo nokusebenzayo kwezixhobo ezenziwe ngamagalvanized.
Ubuchule bokusebenzisa oomatshini bokuwelda bentsimbi yesinyithi kubalulekile kubavelisi abafuna ukuphucula umgangatho wemveliso kunye nokusebenza kakuhle kwemveliso. Utyalo-mali kwiUmatshini wokuwelda wokugcina amandlakuthetha ukutyala imali kwisisombululo esithembekileyo,-esiphezulu sokuwelda intsimbi, uqinisekisa ukuba iinkqubo zakho zemveliso zihlala zigudile kwaye zinendleko{1}}esebenzayo.
