Emva kwenkqubo ye-welding kwi-weld spot welding, kubalulekile ukwenza uhlolo olucokisekileyo ukuvavanya umgangatho kunye nokunyaniseka kwe-weld joint.Eli nqaku libonelela ngamagqabantshintshi eendlela ezahlukeneyo zovavanyo ezisetyenziselwa ukuhlolwa kwe-post-weld kwi-weld spot welding, igxininisa ukubaluleka kwayo ekuhloleni ukusebenza kwe-weld.
- Uhlolo oluBonakalayo: Ukuhlola okubonwayo yeyona ndlela yokuqala nesisiseko yokuvavanya umgangatho wokuwelda kwamabala amandongomane.Ibandakanya uviwo olubonakalayo lwejoyinti ye-weld yezitenxo zomphezulu, njengokuqhekeka, i-porosity, i-spatter, okanye i-fusion engaphelelanga.Ukuhlolwa okubonakalayo kunceda ukuchonga naziphi na iziphene ezibonakalayo ezinokuchaphazela amandla kunye nokuthembeka kwe-weld.
- Uvavanyo lweMacroscopic: Uvavanyo lweMacroscopic lubandakanya ukujonga i-weld joint phantsi kokukhulisa okanye ngeso lenyama ukujonga ubume bayo kunye nejometri.Ivumela ukufunyanwa kweziphene ze-weld, kubandakanywa ukukhanya okugqithisileyo, ukungahambi kakuhle, ukubunjwa kwe-nugget engafanelekanga, okanye ukungena ngokwaneleyo.Uviwo lwe-macroscopic lunika ulwazi oluxabisekileyo malunga nomgangatho jikelele kunye nokubambelela kwiinkcukacha ze-welding.
- Uvavanyo lweMicroscopic: Uvavanyo lweMicroscopic lwenziwa ukuvavanya i-microstructure ye-weld zone.Ibandakanya ukulungiswa kweesampulu ze-metallographic, ezithi ke zihlolwe phantsi kwe-microscope.Obu buchule bunceda ukuchonga ubukho beziphene ze-microstructural, ezinje ngokungafaniyo komda weenkozo, izigaba ze-intermetallic, okanye ukwahlukaniswa kwentsimbi ye-weld.Uvavanyo lweMicroscopic lubonelela ngokuqonda kwiimpawu ze-weld metallurgical kunye nempembelelo yayo enokubakho kwiimpawu zoomatshini.
- Iindlela zoVavanyo olungaNciphisi (NDT): a.Uvavanyo lwe-Ultrasonic (UT): I-UT isebenzisa amaza omsindo aphezulu ukuze ihlole i-weld joint for defects yangaphakathi, njenge-voids, i-porosity, okanye ukungabikho kwe-fusion.Bubuchule obusetyenziswa ngokubanzi be-NDT obubonelela ngolwazi oluneenkcukacha malunga nolwakhiwo lwangaphakathi lwe-weld ngaphandle kokonakalisa isampulu.b.Uvavanyo lweRadiographic (RT): I-RT ibandakanya ukusetyenziswa kwe-X-rays okanye i-gamma ray ukuhlola i-weld joint for defects yangaphakathi.Iyakwazi ukubona iziphene, ezifana nokuqhekeka, ukufakwa, okanye ukudibanisa okungaphelelanga, ngokubamba i-radiation transmitted radiation kwifilimu ye-radiographic okanye i-digital detector.c.Uvavanyo lweMagnetic Particle (MPT): I-MPT isetyenziselwe ukufumanisa iziphene ezingaphezulu kunye nezikufutshane nomphezulu, njengokuqhekeka okanye ukungaqhubeki, kusetyenziswa imimandla yamagnetic kunye namasuntswana omagnetic.Le ndlela isebenza ngokukodwa kwizinto ze-ferromagnetic.
- Uvavanyo loomatshini: Uvavanyo lomatshini lwenziwa ukuvavanya iipropathi zoomatshini ze-welds zamantongomane.Uvavanyo oluqhelekileyo lubandakanya uvavanyo lokuqina, uvavanyo lokuqina, kunye novavanyo lokukhathala.Ezi mvavanyo zivavanya amandla e-weld, i-ductility, ubulukhuni, kunye nokumelana nokudinwa, ukunika ulwazi olubalulekileyo malunga nokusebenza kwayo phantsi kweemeko ezahlukeneyo zokulayisha.
Ukuhlolwa kwe-post-weld kubalulekile kwi-weld spot welding ukuqinisekisa umgangatho kunye nokuthembeka kwe-weld joint.Ngokusebenzisa uhlolo olubonakalayo, uvavanyo lwemacroscopic kunye ne-microscopic, iindlela zovavanyo ezingonakalisi, kunye novavanyo lomatshini, abaqhubi banokuvavanya ngokucokisekileyo ukuthembeka kwe-weld, babone iziphene, kwaye bavavanye iimpawu zayo zomatshini.Ezi ndlela zokuhlola zinceda ukuqinisekisa ukuba i-nut spot welds ihlangabezana nemigangatho efunekayo kunye neenkcukacha, igalelo kwiindibano ezidibeneyo ezikhuselekileyo nezizinzileyo.
Ixesha lokuposa: Jun-15-2023