Views: 0 Mutsari: Muhleri wa sayiti Ku kandziyisa nkarhi: 2025-02-25 Masungulo: Ndhawu
Porosity eka tiphayiphi leti weldiweke ta nsimbi leyi nga riki na swilo swo bola .
Porosity eka tiphayiphi ta stainless steel welded yivula ti voids leti vumbekaka eka weld seam hi nkarhi wa welding process loko gasi yi tsandzeka ku baleka hi nkarhi. Kuva kona ka porosity swinga khumba swinene khwalithi ya welded pipe. Xosungula, porosity yi hunguta matimba na ku tiya ka weld seam. Porosity yihunguta ndzhawu leyi tirhaka ya load-bearing ya weld, leswi endlaka leswaku yiva na ntolovelo wo pandzeka loko yi endliwa matimba yale handle. Ku tlula kwalaho, xivumbeko xa nsimbi lexi rhendzeleke porosity xingava na ntshikelelo wa ntshikelelo hikokwalaho ka vukona bya ti voids leti, leswi yaka emahlweni swi tsanisa matimba na ku tiya ka weld.
Xavumbirhi, porosity yinga khumba ku pfariwa ka weld. Eka switirhisiwa laha ku lavekaka ku pfariwa ka le henhla, ku fana na le ka tifemeni ta tikhemikhali ta petroliyamu na swa le mpfhukeni, porosity eka weld seam yi nga endla leswaku ku va na ku khuluka ka swihangalasamahungu, leswi nga vangaka makhombo lamakulu ya vuhlayiseki.
Xohetelela, porosity yi khumba khwalithi ya aesthetic ya weld. Surface porosity yinga endla leswaku weld surface yinga ringani, leswi khumbhaka hindlela yo biha xivumbeko xa xiendliwa xikan’we naku hunguta mphikizano wa xona wa makete.
Swivangelo swa porosity eka tiphayiphi leti weldiweke ta nsimbi leyi nga riki na swilo swo bola .
Ku basisiwa lokunga fanelangiki ka surface ya base material
Loko base material surface yiri na thyaka rofana na oyili, rust, mati ya swivati, kumbe oxide scale, thyaka leri ringa bola naku humesa gasi hi nkarhi wa welding, leswi engetelaka ku koteka ka porosity formation eka weld.
Vuyelo bya ti parameters ta welding
welding current, voltage, na welding speed i swilo swa nkoka leswi khumbhaka ku tumbuluxiwa ka porosity. Loko rivilo ra welding ri nonoka swinene naswona current yiri e henhla swinene, molten pool yita hisa ngopfu, leswi engetelaka solubility ya tigasi. Hambiswiritano, hi nkarhi wa ku kufumela, gasi leyi yi nga ha baleka hi nkarhi, leswi endlaka leswaku ku va ni porosity. Hi tlhelo rin’wana, loko rivilo ro welda ri hatlisa swinene naswona current yiri ehansi swinene, mahiselo ya pool lawa ya n’okiweke yatava yari ehansi swinene, leswi endlaka leswaku kuva na ku olova na ku tika ka ku baleka ka gasi.
Mimpimo yo sivela ya porosity eka tiphayiphi leti weldiweke ta nsimbi leyi nga riki na swilo swo bola .
Loko kungase welda, vuandlalo bya base material byifanele ku basisiwa kahle leswaku kuta susiwa mafurha, rust, ndzhongho, oxide scale, na thyaka rin’wana. Ku engetela kwalaho, i swa nkoka ku hlawula current leyi faneleke yo welda, voltage, na rivilo ra welding. Ku tiyisisa khwalithi yale henhla ya welding, current leyintsongo ya welding na voltage swifanele ku hlawuriwa laha swinga kotekaka, loko hindlela leyi faneleke swihunguta rivilo ra welding kuva swipfumelela nkarhi lowu ringaneleke leswaku gasi yi baleka, hindlela yaleyo swisivela ku endliwa ka porosity hindlela leyinene.