Haɗin bututu, inda sassa biyu ko fiye da haka ke amfani da haɗin haɗin haɗin gwiwa, ko kuma yana nufin sassa biyu ko fiye da aka haɗa ta hanyar haɗin gwiwar walda, gami da walda, yankin fusion da yankin da zafi ya shafa.

Yankin haɗin gwiwa welded

Bayan dacewa karfe da filler karfe narke da sauri sauri Youyi kafa bayan sanyaya da solidification.Weld daga tsarin simintin gyare-gyare na lu'ulu'u na ƙarfe na ruwa, ƙananan hatsi, rarrabuwa, ƙungiyar ba ta da yawa.Duk da haka, saboda kananan walda pool, da sauri sanyaya, m iko da sinadaran abun da ke ciki, carbon, sulfur, phosphorus ne low, amma kuma ta hanyar daidaita da sinadaran abun da ke ciki na weld alloying, ya ƙunshi wani adadin alloying abubuwa, don haka aikin karfen weld ba babbar matsala ba, saduwa da buƙatun aiki, musamman ƙarfi mai sauƙin isa.

Yankin Fusion

Yankin narkewa da wani yanki na canji tsakanin yankin mara narkewa.Chemical abun da ke ciki na Fusion zone m lokacin farin ciki nama yawanci m lokacin farin ciki taurare nama ko overheating nama.Ayyukan welded gidajen abinci sau da yawa mafi muni.Fusion zone da zafi shafi yankin na overheated yankin (ko quench zone) shi ne mafi munin na inji Properties na welded gidajen abinci na rauni sassa, zai tsanani tasiri ingancin welded gidajen abinci.

Yankin da zafi ya shafa

Ƙaƙƙarfan ƙananan zafin jiki mai zafi mai zafi yanki microstructure da kaddarorin da ya haifar da canje-canje a yankin.Low-carbon karfe zafi-shafi yankin za a iya raba overheated yankunan, da kuma wani ɓangare na lokaci mika mulki yankin normalizing yankin.

(1) Matsakaicin yankin zafin zafi na yankin superheat sama da 1100℃, ƙananan hatsi, har ma da nama mai zafi, wanda ake kira yankin superheat.Ductility da taurin sun ragu sosai yankin da ke da zafi sosai, yankin da zafi ya shafa shine mafi munin ɓangaren kayan aikin injiniya.

(2) Matsakaicin zafin jiki na dumama daga daidaita yankin yanki Ac3 zuwa 1100℃, da iska-sanyi walda hatsi samun karami bayan normalizing kungiyar da ake kira normalizing yankin.Better inji Properties na normalizing zone.

(3) wani ɓangare na matsakaicin matsakaicin yanayin canjin yanayin zafin jiki zuwa yanki daga Ac1 Ac3, kawai wani ɓangare na canjin lokaci na ƙungiyar, wanda ake kira yankin juzu'i na juzu'i.Wannan yanki na hatsin da bai yi daidai ba shima ba shi da kyau.A lokacin shigarwa waldi, waldi hanya mafi sau da yawa.Haɗin haɗin gwiwa mai zafi mai zafi mai zafi ne na matrix matrix mai zafi da kuma nau'in nau'in nau'in narkakken ƙarfe yayin ƙarfafa narkakkar nau'in.Dangane da microstructure da kaddarorin sassa daban-daban na welded gidajen abinci za a iya raba kashi uku.