Umbhobho woxinzelelo weld weld imbonakalo iimfuno ezisisiseko

Ngaphambi koxinzeleloumbhobhoukwenza uvavanyo olungonakalisi, uhlolo olubonakalayo lwerula yokuhlola i-weld kufuneka ihlangabezane neemfuno.Iimfuno jikelele zoxinzelelo umbhobho weld inkangeleko kunye nomgangatho womphezulu wamalungu adityanisiweyo zezi zilandelayo: ukuwelda kufuneka kujonge imilo elungileyo, ububanzi becala ngalinye bevel bevel eligqunywe 2mm ngokufanelekileyo.Ubude bomlenze we-Fillet weld kufuneka buhlangabezane neemfuno zoyilo, umgangatho wolawulo lwefom encinci kufuneka ibe yinguqu egudileyo.

Umphezulu odibeneyo odibeneyo awuvumeli ukuqhekeka, ukungabikho kokudibanisa, i-porosity, i-slag, i-spatter ikhona.Ubushushu boyilo lombhobho bungaphantsi kwama-29 degrees, ifan yomlawuli wentsimbi eqinileyo kunye nemibhobho yentsimbi yealloyi ithande ukuba ngumphezulu we weld enkulu, ngaphandle kwe-undercut.Umbhobho weld undercut ezinye izinto kufuneka zibe nkulu kunobunzulu be-0.5mm, ubude obuqhubekayo be-undercut akufunekanga budlule i-100mm, kwaye amacala omabini e-weld undercut akhule nge-10 yepesenti yobude be-weld iyonke.Umphezulu we-weld ungekho ngaphantsi kwendawo yombhobho.Ukuqiniswa kwe-weld, Kwaye akukho ngaphezu kwe-3mm, (ukuya kububanzi obuphezulu be-weld joints kwi-groove).Amalungu adityanisiweyo angalunganga kwicala lodonga lobungqimba akufunekanga adlule kwi-10% kwaye angabi ngaphezu kwe-2mm.

Kumphezulu wovavanyo olungonakalisi

Umbhobho wombhobho woxinzelelo ophezu komhlaba NDT umgaqo wokukhetha indlela: umbhobho wentsimbi omagnetic kufuneka usetyenziswe kuvavanyo lwamasuntswana omagnetic;intsimbi engeyiyo i-ferromagnetic kufuneka isetyenziswe kuvavanyo lokungena.Kukho ukuthambekela kokulibaziseka kokuqhekeka kwamalungu adibeneyo, umphezulu kufuneka ube novavanyo olungonakalisi lokupholisa emva kwe-welding ixesha elithile;ukutshisa ngokutsha ukuqhekezwa kokuqhekeka kwamalungu adityanisiweyo, umphezulu kufuneka ube kuvavanyo olungonakalisi kunye nonyango lobushushu be-post-weld kanye nganye.

Ukuhlolwa kwe-ray kunye novavanyo lwe-ultrasonic

Ukuhlolwa kwe-ray kunye novavanyo lwe-ultrasonic yeyona nto ekujoliswe kuyo yombhobho woxinzelelo odibeneyo we-butt kunye nokufakelwa kombhobho kumalungu e-butt.Iindlela ze-NDT ezikhethwe ngamaxwebhu oyilo.I-Titanium, i-aluminium kunye ne-aluminium alloy, i-alloys yobhedu kunye ne-copper, i-welded joints ukuze ibone i-nickel kunye ne-nickel alloys, kwaye kufuneka isetyenziswe kwiindlela zokubona ukukhanya kwe-radiation.Kukho umkhwa wokulibazisa iintanda ze-weld, ukuhlolwa kwayo kwe-ray kunye nokuhlolwa kwe-ultrasonic kufuneka kube ngexesha elithile lokupholisa emva kwe-welding.Xa intloko yefolda ngaphakathi kwe-casing ine-weld ye-girth, i-weld kufuneka isebenze i-100% yokufumanisa i-ray, imisebenzi efihliweyo inokuqhutywa emva kokudlula kuvavanyo loxinzelelo.Amakhonkco okuqiniswa okanye ipleyiti yokuthwala igutyungelwe ngamacandelo adibeneyo iya kuba yi-100% yokuhlolwa kwe-pipe-ray, emva kokudlula emva koko igubungele.Ukuhlolwa kwezibonelelo ze-welding ye-welding ephakathi, uvavanyo olungonakalisi kufuneka lwenziwe emva kokudlula ukuhlolwa okubonakalayo, i-radiography kunye novavanyo lwe-ultrasonic kufuneka lwenziwe emva komgangatho wovavanyo olungonakalisi, uvavanyo lwe-weld seam lunokuqhubeka emva kokuvavanya ukufaneleka.