Zambiri Zokhudza Kuwotcherera Electrodes
Tianqiao kuwotcherera elekitirodi ndiye njira akatswiri
Ma elekitirodi owotcherera ndi ofunikira, ndipo ndikofunikira kuti wowotchera ndi ogwira nawo ntchito adziwe mtundu wanji woti agwiritse ntchito ntchito zosiyanasiyana.
Kodi ma elekitirodi owotcherera ndi chiyani?
Elekitirodi ndi waya wachitsulo wokutidwa, womwe umapangidwa ndi zinthu zofanana ndi zitsulo zomwe zimawotchedwa.Poyambira, pali ma electrode ogwiritsidwa ntchito komanso osagwiritsidwa ntchito.Mu chishango chachitsulo cha arc welding (SMAW) chomwe chimatchedwanso ndodo, ma electrode amatha kudyedwa, zomwe zikutanthauza kuti electrode imadyedwa panthawi yomwe imagwiritsidwa ntchito ndikusungunuka ndi weld.Mu Tungsten Inert Gas welding (TIG) maelekitirodi ndi osagwiritsidwa ntchito, choncho sasungunuka ndikukhala gawo la weld.Ndi Gas Metal Arc Welding (GMAW) kapena kuwotcherera kwa MIG, ma elekitirodi amadyetsedwa mawaya mosalekeza.2 Flux-cored arc welding imafuna kudyetsedwa kosalekeza kwa tubular electrode yokhala ndi flux.
Kodi kusankha maelekitirodi kuwotcherera?
Kusankha electrode kumatsimikiziridwa ndi zofunikira za ntchito yowotcherera.Izi zikuphatikizapo:
- Kulimba kwamakokedwe
- Ductility
- Kukana dzimbiri
- Chitsulo choyambira
- Weld udindo
- Polarity
- Panopa
Pali maelekitirodi opepuka komanso olemera.Maelekitirodi opaka kuwala amakhala ndi zokutira zopepuka zomwe zimagwiritsidwa ntchito popaka, kupopera mbewu mankhwalawa, kumiza, kuchapa, kupukuta, kapena kugwa.Ma electrodes olemera kwambiri amakutidwa ndi extrusion kapena kudontha.Pali mitundu itatu ikuluikulu ya zokutira zolemera: mineral, cellulose, kapena kuphatikiza ziwirizi.Zovala zolemera zimagwiritsidwa ntchito powotcherera chitsulo, zitsulo, ndi malo olimba.
Kodi manambala ndi zilembo zimatanthauza chiyani pa ndodo zowotcherera?
Bungwe la American Welding Society (AWS) lili ndi makina owerengera omwe amapereka zambiri za electrode inayake, monga momwe imagwiritsidwira ntchito bwino komanso momwe iyenera kugwiritsidwira ntchito kuti ikhale yogwira mtima kwambiri.
| Chiwerengero | Mtundu wa Coating | Welding Current |
| 0 | High cellulose sodium | DC+ |
| 1 | High cellulose potaziyamu | AC, DC+ kapena DC- |
| 2 | High titania sodium | AC, DC- |
| 3 | Mkulu wa titania potaziyamu | AC, DC+ |
| 4 | Iron ufa, titania | AC, DC+ kapena DC- |
| 5 | Low hydrogen sodium | DC+ |
| 6 | Low hydrogen potaziyamu | AC, DC+ |
| 7 | High iron oxide, potaziyamu ufa | AC, DC+ kapena DC- |
| 8 | Low hydrogen potaziyamu, chitsulo ufa | AC, DC+ kapena DC- |
"E" ikuwonetsa electrode yowotcherera ya arc.Manambala awiri oyamba a manambala 4 ndi manambala atatu oyamba a manambala 5 amayimira kulimba kwamphamvu.Mwachitsanzo, E6010 amatanthauza 60,000 pounds per square inch (PSI) tensile mphamvu ndi E10018 kutanthauza 100,000 psi tensile mphamvu.Nambala yotsatira mpaka yomaliza ikuwonetsa malo.Choncho, "1" imayimira ma elekitirodi a malo onse, "2" ya electrode ya lathyathyathya ndi yopingasa, ndipo "4" imayimira lathyathyathya, yopingasa, yoyimirira pansi ndi pamwamba.Nambala ziwiri zomaliza zimatchula mtundu wa zokutira ndi kuwotcherera panopa.4
| E | 60 | 1 | 10 |
| Electrode | Kulimba kwamakokedwe | Udindo | Mtundu wa Coating & Current |
Kudziwa mitundu yosiyanasiyana ya maelekitirodi ndi kugwiritsa ntchito kwawo kumathandiza kuti ntchito yowotcherera igwire bwino.Kuganizira kumaphatikizapo njira yowotcherera, zida zowotcherera, momwe zilili m'nyumba / panja, ndi malo owotcherera.Kuyeserera ndi mfuti zowotcherera ndi maelekitirodi kungakuthandizeni kudziwa kuti ndi ma elekitirodi ati omwe mungagwiritse ntchito powotcherera.
Nthawi yotumiza: Apr-01-2021