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 bemibhobho ye-microstructural, efana ne-anomalies yomda weenkozo, izigaba ze-intermetallic, okanye ulwahlulo lwe-weld metal. Uvavanyo lweMicroscopic lubonelela ngokuqonda kwiimpawu ze-weld metallurgical kunye nempembelelo yayo enokubakho kwiimpawu zoomatshini.
- IiNdlela zokuSebenza zoVavanyo olungonakalisi (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 lwe-macroscopic kunye ne-microscopic, iindlela zokuvavanya ezingonakalisi, kunye novavanyo lomatshini, abaqhubi banokuvavanya ngokucokisekileyo ukuthembeka kwe-weld, babone iziphene, kwaye bavavanye iimpawu zayo zoomatshini. 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
