1. Duban bayyanarkayan aikin gwiwar hannu: gabaɗaya, duban gani shine babbar hanyar.Ta hanyar dubawar bayyanar, an gano cewa lahanin bayyanar walda na kayan aikin bututun gwiwar hannu ana gano su ta gilashin ƙara girman sau 5-20 wani lokaci.Irin su undercut, porosity, weld dutsen dutse, fashe fashe, slag hadawa, walda shigar azzakari cikin farji, da dai sauransu The overall girma na weld kuma za a iya auna ta walda ganowa ko samfuri.

2. NDT don kayan haɗin gwiwar gwiwar hannu: duba lahani kamar haɗaɗɗen slag, ramin iska da fashe a cikin walda.Binciken X-ray shine amfani da X-ray don ɗaukar hotuna na walda, bisa ga mummunan hoto don sanin ko akwai lahani a cikin walda, lamba da nau'in lahani.A halin yanzu, ana amfani da gwajin X-ray, gwajin ultrasonic da gwajin maganadisu.Sannan bisa ga buƙatun fasaha na samfur, ƙayyade ko walda ya cancanta.A wannan lokacin, kalaman da aka nuna yana bayyana akan allon.Ta hanyar kwatantawa da gano waɗannan raƙuman ruwa da ke nunawa da raƙuman ruwa na yau da kullum, ana iya ƙayyade girman da wuri na lahani.Gwajin Ultrasonic ya fi sauƙi fiye da gwajin X-ray, don haka an yi amfani da shi sosai.Koyaya, gwajin ultrasonic ne kawai za'a iya yanke hukunci ta gogewar aiki kuma ba zai iya barin tushen dubawa ba.Lokacin da ultrasonic katako da aka daukar kwayar cutar zuwa karfe iska dubawa, zai ja da baya da kuma wuce ta cikin walda.Idan akwai lahani a cikin walda, za a nuna katako na ultrasonic a kan bincike da bear.Hakanan za'a iya amfani da duban magnetic don lahani na ciki da ƙananan fashe marasa zurfi daga saman walda.

3. Mechanical dukiya gwajin na gwiwar hannu kayan aiki: nondestructive gwaji iya samun muhimmi lahani na weld, amma ba zai iya bayyana inji Properties na karfe a zafi shafi yankin na weld.Wasu lokuta ana buƙatar gwaji mai ƙarfi, tasiri da lankwasawa don haɗaɗɗun welded.An yi waɗannan gwaje-gwajen akan jirgi.Ya kamata a yi wa farantin gwajin walda tare da kabu mai tsayi na Silinda don tabbatar da yanayin ginin iri ɗaya.Sannan an gwada kayan aikin injin farantin gwajin.A cikin samarwa mai amfani, kawai haɗin walda na sabon matakin ƙarfe ne aka gwada ta wannan yanayin.

4. Gwajin Hydrostatic da gwajin pneumatic na kayan aikin gwiwar hannu: don tasoshin matsa lamba da ake buƙatar rufewa, ana buƙatar gwajin hydrostatic da gwajin pneumatic don bincika hatimi da ƙarfin ɗaukar nauyi na welds.Hanyar ita ce allurar da kwantena a cikin matsa lamba na ruwa ko kuma sau 1.25-1.5 na aikin iskar gas (mafi yawan iska) na wani lokaci, sannan a bincika raguwar matsa lamba a cikin akwati, sannan a bincika ko akwai. shi ne wani yayyo sabon abu, don sanin ko walda ne m.