Welding inzira yekuti zvinhu zvezvishandiso zvinosungirirwa (zvakafanana kana zvakasiyana) zvinosanganiswa nekudziya kana kudzvanywa kana zvese zviri zviviri, uye zvine kana zvisina kuzadza zvinhu, kuitira kuti zvinhu zvezvishandiso zvinosungirirwa pakati peatomu kuita kubatana.Saka ndeapi mapoinzi akakosha uye chiziviso cheStainless steel welding?
Ndeipi electrode inoshandiswa kugadzira simbi isina tsvina?
1.Stainless steel electrodes inogona kugoverwa kuva chromium Stainless steel electrodes uye chromium-nickel Stainless steel electrodes.Aya emhando mbiri idzi dzemagetsi anosangana nechiyero chenyika achaongororwa zvinoenderana nechiyero chenyika GB/T983-2012.
2.Chromium simbi isina tsvina ine imwe corrosion resistance (oxidizing acid, organic acid, cavitation) kupisa kupisa uye kusagadzikana kwemarara.Inowanzo kusarudzwa semidziyo yemidziyo yemagetsi chiteshi, indasitiri yemakemikari, petroleum uye zvichingodaro.Nekudaro, iyo weld kugona kwechromium simbi isina simbi kazhinji haina kunaka, uye inofanirwa kungwarira kubhadhara kune welding process, kupisa mamiriro ekurapa uye kusarudzwa kweakakodzera welding electrodes.
3.Chromium-nickel Stainless steel electrodes ine yakanaka corrosion resistance uye oxidation resistance, uye inoshandiswa zvakanyanya mumakemikari, fetiraiza, petroleum, uye kugadzira michina yekurapa.Kuti udzivise kuparara kwe intergranular nekuda kwekupisa, welding ikozvino haifaniri kunge yakakura, iyo inenge 20% pasi peiyo carbon steel electrodes. Iyo arc haifaniri kunge yakareba, iyo interlayers inotonhodzwa nokukurumidza, yakamanikana bead welding is zvakakodzera.
Stainless Simbi Welding Points uye Chiziviso
Iyo magetsi emagetsi ane vertical ekunze maitiro anogamuchirwa, uye iyo yakanaka polarity inoshandiswa kuDC (waya yewelding yakabatana nedanda rakashata)
1.Iyo inowanzokodzera kune welding yakaonda ndiro simbi pazasi 6mm.Iyo ine hunhu hweakanakisa welding chimiro uye diki welding deformation.
2.Gasi rinodzivirira ndiro argon nekuchena kwe99.99%.Kana iyo welding ikozvino iri 50 ~ 150A, kuyerera kwe argon gasi iri 8 ~ 10L / min, kana ikozvino iri 150 ~ 250A, kuyerera kwe argon gasi ndeye 12 ~ 15L / min.
3.Kureba kwekureba kwe tungsten electrode kubva mumuromo wegesi zviri nani 4 ~ 5mm.Iyo 2 ~ 3mm munzvimbo dzisina kudzivirirwa kwakashata senge fillet welding, uye 5 ~ 6mm munzvimbo dzine slot yakadzika.Nhambwe kubva pamuromo kuenda kubasa kazhinji haipfuuri 15mm.
4. Kuti udzivise welding porosity, kana pane ngura uye mavara emafuta pazvikamu zvekushongedza, inofanira kucheneswa.
5. The welding arc kureba zviri nani 2 ~ 4mm kana welding zvakajairika simbi, uye 1 ~ 3mm kana welding Stainless simbi.Kana yakarebesa, mhedzisiro yekudzivirira haizove yakanaka.
6. Kana butt-bottoming, kuitira kudzivirira kumashure kwepasi weld bead kubva kune oxidized, kumashure kunodawo kuchengetedzwa negesi.
7. Kuitira kuti argon gasi richengetedze zvakanaka dziva rekuputira uye kufambisa basa rekuisa, mutsara wepakati we tungsten electrode uye workpiece panzvimbo yewelding inofanirwa kuchengetedza kona ye80 ~ 85 °, uye kona iri pakati pe. filler wire uye pamusoro pe workpiece inofanira kuva duku sezvinobvira.Kazhinji, inenge 10 °.
8. Windproof uye mhepo.Pane mhepo, ndapota tora matanho ekuvhara mambure, uye tora matanho akakodzera ekufemesa mumba.
Nguva yekutumira: Kubvumbi-26-2023