1. Ukuthungwa okuhlukile kwesikhumba nombala, izindawo zokushisela
Isizathu 1 : Impahla yendawo ye-welding ihluke ezintweni zokuqala.
Izinyathelo ezihambisanayo: Sebenzisa intambo yokushisela ehambisana nesisekelo, okungcono ucingo olukhethekile olusetshenziswa ezigayweni zensimbi; okwesibili, wabona izinto ezivela kusisekelo; noma usebenzise i-universal welding wire.
Isizathu sesi-2 : Ukwelashwa kokushisa kwendawo ye-welding kuhluke kuleyo ndawo yokuqala, futhi isakhiwo siyashintsha.
Izinyathelo ezihambisanayo: Ukwelashwa kokushisa kwenziwa ngemuva kokushisela ukwenza isakhiwo sokusanhlamvu sihambisane; izingxenye ezibalulekile ziqhutshwa ngokuqinile ngokuya ngenqubo yokushisela yesitshalo sensimbi.
2. Imifantu kanye nokuguqulwa
Isizathu: Uma izingxenye zingaphansi kwe-argon arc welding, zishiswa kakhulu endaweni, okuholela emazingeni okushisa ahlukene ezindaweni ezahlukene zezingxenye futhi zikhiqize ukucindezeleka kwangaphakathi okushisayo; ngemva kokushisela, indawo eseduze nendawo yokushisela empeleni iyacinywa, futhi le ndawo inzima kakhulu futhi ijwayele ukuqhekeka.
Qaphela:
1. Indawo enkulu yokushisela, ingcindezi yangaphakathi ekhiqizwayo inkulu.
2 Ukuphakama kwekhabhoni kanye nokuqukethwe kwe-elementi ye-alloying, kuba kubi kakhulu ukushisela . Uma idlula u-0.4%, ukushisa kwangaphambi kwesikhathi kanye nokushisa kuyadingeka.
3. Ukuphakama kokuqina kwengxenye, kukhulu ukucindezeleka kwangaphakathi kwangaphakathi futhi kulula ukuqhekeka.
4. Uma umumo ubukhali, kuba lula ukuthi ingxenye iqhekeke.
Izinyathelo ezihambelanayo: Shisisa konke futhi wenze ukushisa ngemva kokushisela.
Qaphela:
Ukufakwa okukhulu, ukuze ugweme ukucindezeleka okubangelwa ukushisa kwangaphambili (ngisho noma ingxenye yonke ishisa ngaphambili, izinga lokushisa lengxenye livela ngaphandle kuya ngaphakathi, okungase kubangele ukucindezeleka kwangaphakathi) , Uma ushisa, gcina ukushisa okuphakathi kwesikhashana ngaphambi kokuyishisa futhi.
3. Imigodi yesihlabathi nama-pores
Isizathu 1 : Izinkinga zobuchwepheshe bokushisela, izikhala ekuqongeleleni amaphuzu we-weld.
Izinyathelo ezihambisanayo: Sebenzisa izinduku zokushisela ngangokunokwenzeka; Qaphela futhi ucophelele lapho ushisela.
Isizathu sesi-2 : Uma izingxenye ezine-nitrided zishiselwe, ama-molecule e-nitrogen ayahwamuka bese enza izimbotshana ngenxa yokushisisa.
Izinyathelo ezihambisanayo: ukushisela ngaphambi kwe-nitriding; Gcoba ungqimba lwe-nitride.
Isizathu sesi-3 : Kukhona ukungcola endaweni yokushisela futhi induku yokushisela ayomiswa njengoba kudingekile, okuholela ekukhiqizeni igesi ngesikhathi sokuncibilika.
Izinyathelo ezihambisanayo: Ngaphambi kokushisela, amafutha , ukugcoba , ukucubungula i-lubricant kanye nefilimu ye-oxide ebusweni be-weldment kumele kukhishwe; izinduku zokushisela kufanele zomiswe njengoba kudingeka.
4. Ukuncishiswa kokuqina kanye nokuhushulwa kwendawo
Isizathu: Ukushintsha kwezinga lokushisa ngesikhathi sokushisela kubangela ukwelashwa kokushisa ezingxenyeni, okuholela ekushintsheni kwezinto zezingxenye.
Izinyathelo ezihambisanayo: Landela inqubo yokushisela ehlinzekwa umphakeli wensimbi.
5. Okunye Ukusikisela
Ulwazi oluyisisekelo lokwelashwa kokushisa kwensimbi: 1. Uma insimbi ibhekene nokwelashwa kokushisa okufana ne-nitriding noma i-preheating welding jikelele, qaphela ukuthi izinga lokushisa akufanele lidlule izinga lokushisa lensimbi ngaphambi kokushiya imboni, ngaphandle kwalokho ukuqina kwensimbi kuzoncishiswa futhi ukuguqulwa kwezingxenye kuzobangelwa.
Ukushisa okuphelele kwe-P20 kunconywa inqubo evamile yokwelashwa kokushisa: ukushisa kuqala ku-350-450 degrees bese ushisela, ukufutheka cishe ngamadigri angu-550 (ukufaka isikhunta esibalulekile, inqubo yokwelapha ukushisa idinga ukulawulwa ngokuqinile ngokuvumelana nezincomo zomenzi).
Ukuze uvimbele izimbobo zesihlabathi eziphindaphindiwe ngesikhathi sokupholishwa ngemva kokushisela, umtshina we-welding flaw ungasetshenziswa ukuhlola kuqala ngemva kokushisela. Izindawo eziyinkinga zingambiwa bese zishiselwa ukugwema izimbobo zesihlabathi eziphindaphindiwe.
Ukushisela ithusi le-beryllium: Ithusi le-Beryllium lingenwa kalula yi-oxidation. Kumele ihlanganiswe ngokushesha ngemva kokuba ifilimu ye-oxide isusiwe ngebhulashi elibukhali noma i-sandblasting. Ukuqina kwendawo eshiselwe kanye nezindawo ezizungezile kuzokwehla. Uma ukuncipha kokuqina kungamukeleki, ukwelashwa kokushisa kabusha kuyadingeka.
Isikhathi sokuthumela: Jun-08-2025
