Flash butt welding inzira inoshandiswa zvakanyanya mumaindasitiri ekugadzira nekuvaka ekubatanidza simbi. Inosanganisira kushandiswa kwepamusoro-soro uye kudzvinyirira kugadzira chisungo chakasimba, chinogara pakati pezvidimbu zviviri zvesimbi. Chimwe chinhu chakakosha cheiyo flash butt welding process ndeye preheating, iyo inoita basa rakakosha mukuwana akabudirira welds. Muchikamu chino, tichaongorora kukosha kwepreheating nemigumisiro yaro pahutano uye kuvimbika kwe flash butt welds.
Preheating ndiyo nzira yekusimudza tembiricha yezvinhu zvinosungirirwa pamberi pekushanda chaiko. Zvinowanzoitwa uchishandisa induction kupisa, gasi moto, kana kuramba kudziyisa nzira. Chinangwa chekutanga chekupisa muflash butt welding ndechekudzikisa kushushikana kwekupisa uye kusiyana kwekushisa kunogona kuitika panguva yewelding.
- Kuderedza Stress: Preheating inobatsira kuderedza kushushikana kwemukati mune izvo zviri kugadzirwa. Kana masimbi akakurumidza kupisa panguva yewelding, anowedzera, uye sezvaanotonhora pasi, anobvumirana. Uku kukurumidza kuwedzera uye kuputika kunogona kuguma nekusarira kunetseka mukati mejoini yakasungwa. Preheating inobvumira kushanduka kwekushisa zvishoma nezvishoma, kuderedza njodzi yekuputika uye kukanganisa muzvidimbu zvakasungwa.
- Yakavandudzwa Kuyerera Kwezvinhu: Munguva yeflash butt welding, zvigadzirwa zvinoiswa pasi pekumanikidzwa kwakanyanya uye zvazvino, zvichiita kuti zvive zvakanyanya kuumbwa. Preheating inopfavisa zvinhu, zvichiita kuti zvive zvakanyanya ductile uye kukurudzira zviri nani kuyerera kwezvinhu. Uku kuyerera kwezvinhu kwakagadziridzwa kunovimbisa kuti simbi dzinobatana pamwe chete zvakanaka, zvichigadzira chisungo chakasimba uye chakavimbika.
- Yakaderedzwa Kuoma uye Kuoma: Kukurumidza kutonhora mushure mekuputika kunogona kutungamirira kukugadzirwa kwezvakaoma uye brittle microstructures mumusanganiswa welded. Preheating inononoka kutonhora, zvichibvumira kuumbwa kwezvinyoro uye zvakanyanya ductile microstructures. Izvi, zvakare, zvinowedzera kuoma kwese uye ductility ye weld, kuderedza njodzi yekutsemuka nekutadza.
- Corrosion Resistance: Preheating inogona zvakare kuve nemhedzisiro yakanaka pakupokana kwekuora kwejoini rakasungwa. Nekusimudzira kuumbwa kweimwe yunifomu uye isina brittle weld, preheating inobatsira kuderedza kubatwa kwejoint kune ngura uye mamwe maitiro ekuora kwezvinhu.
Mukupedzisa, preheating inhanho yakakosha mu flash butt welding, sezvo ichibatsira kune iyo yese mhando uye kutendeseka kweiyo weld. Nekudzikisa kushushikana kwemukati, kuvandudza kuyerera kwezvinhu, kuderedza kuomarara uye brittleness, uye kuwedzera kusadzivirirwa kwekuora, preheating inovimbisa kuti iyo welded joint inosangana nezvinodiwa mashandiro uye kusimba kwemaitiro. Welders uye vagadziri vanofanira kunyatsofunga preheating paramita kuti vabudirire flash butt welds mune akasiyana maapplication.
Nguva yekutumira: Oct-27-2023
