1. Mfundo ya ndondomeko
Electrode arc welding ndi njira yowotcherera ya arc pogwiritsa ntchito ndodo yowotcherera pamanja.Chizindikiro cha E cha kuwotcherera arc ya electrode ndi nambala 111.
Njira yowotcherera ya electrode arc kuwotcherera: powotcherera, ndodo yowotcherera imakumana ndi chogwirira ntchito nthawi yomweyo itatha dera lalifupi, ndikuyatsa arc.Kutentha kwapamwamba kwa arc kumasungunula pang'ono electrode ndi workpiece, ndi kusintha kwapakati kosungunuka kupita kumalo osungunuka pang'ono kusungunuka ngati dontho losungunuka, lomwe limasakanikirana kuti likhale dziwe losungunuka.The kuwotcherera ma elekitirodi flux kumapanga kuchuluka kwa mpweya ndi madzi slag pa ndondomeko kusungunuka, ndi mpweya opangidwa amadzaza arc ndi malo ozungulira dziwe losungunuka, akugwira ntchito kudzipatula mlengalenga kuteteza madzi zitsulo.Kachulukidwe kamadzi kamadzimadzi ndi kakang'ono, mu dziwe losungunuka limayandama nthawi zonse, litakutidwa ndi zitsulo zamadzimadzi pamwamba, kuteteza gawo lachitsulo chamadzimadzi.Pa nthawi yomweyo, ndi flux khungu kusungunuka mpweya, slag ndi kusungunuka weld pachimake, workpiece angapo zochita zitsulo kuonetsetsa ntchito kuwotcherera anapanga.
2. Ubwino wa kuwotcherera arc electrode
1) Zida zosavuta, kukonza kosavuta.Makina owotcherera a AC ndi DC omwe amagwiritsidwa ntchito powotcherera ma elekitirodi ndi osavuta ndipo safuna zida zovuta zothandizira kuti agwiritse ntchito ndodo yowotcherera, ndipo amangofunika kukhala ndi zida zosavuta zothandizira.Makina owotcherera awa ndi osavuta pamapangidwe, otsika mtengo komanso osavuta kusamalira, komanso ndalama zogulira zida ndizochepa, chomwe ndi chimodzi mwa zifukwa zomwe zimagwirira ntchito.
2) Palibe chitetezo chothandizira gasi chomwe chimafunikira, ndodo yowotcherera sikuti imangopereka zitsulo zodzaza, komanso imatha kupanga mpweya woteteza kuteteza dziwe losungunuka ndi weld kuchokera ku okosijeni panthawi yowotcherera, ndipo imakhala ndi kukana kwamphamvu kwa mphepo.
3) Ntchito yosinthika komanso kusinthasintha kwamphamvu.Kuwotcherera kwa ndodo ndi koyenera kuwotcherera zidutswa zing'onozing'ono kapena magulu ang'onoang'ono azinthu, zazifupi komanso zosasinthika, zokhazikika m'malo ndi zina zowotcherera zomwe sizili zophweka kukwaniritsa kuwotcherera kwamakina.Kuwotcherera kungathe kuchitidwa kulikonse kumene ndodo yowotcherera ingathe kufika, ndi kupezeka kwabwino komanso ntchito yosinthika kwambiri.
4) Ntchito zosiyanasiyana, zoyenera kuwotcherera zitsulo zambiri zamafakitale ndi ma aloyi.Sankhani yoyenera kuwotcherera ndodo sangathe kuwotcherera mpweya zitsulo, otsika aloyi zitsulo, komanso mkulu aloyi zitsulo ndi zitsulo sanali ferrous;osati kuwotcherera chitsulo chomwecho, komanso akhoza kuwotcherera zitsulo zosiyana, komanso kuponya chitsulo kuwotcherera kukonza ndi zipangizo zosiyanasiyana zitsulo monga kuwotcherera pamwamba.
3. kuipa kwa elekitirodi arc kuwotcherera
1) zowotcherera ukadaulo wogwiritsa ntchito zofunikira ndizokwera, ndalama zophunzitsira zowotcherera.kuwotcherera khalidwe la elekitirodi arc kuwotcherera kuwonjezera kusankha maelekitirodi oyenera kuwotcherera, kuwotcherera magawo ndondomeko ndi zipangizo kuwotcherera, makamaka ndi njira kuwotcherera ma welders ndi zinachitikira kuonetsetsa kuti kuwotcherera khalidwe ma elekitirodi Arc kuwotcherera kumlingo wina anatsimikiza ndi welders ntchito. njira.Chifukwa chake, owotcherera amafunika kuphunzitsidwa nthawi zambiri, ndalama zophunzitsira ndizokulu.
2) Kusauka kwa ntchito.Kuwotcherera kwa ndodo kumadalira pamanja ntchito zowotcherera ndi kuyang'ana maso kuti amalize ntchitoyi, kuchulukira kwa ntchito ya owotcherera.Ndipo nthawi zonse mu kutentha kutentha kuphika ndi poizoni utsi chilengedwe, ntchito zinthu ndi osauka, kotero kulimbikitsa ntchito chitetezo.
3) Kuchita bwino kwa kupanga kochepa.Welding ndodo arc kuwotcherera makamaka zimadalira ntchito pamanja, ndi kuwotcherera ndondomeko magawo kusankha osiyanasiyana ang'onoang'ono.Komanso, kuwotcherera elekitirodi ayenera kusinthidwa pafupipafupi, ndi kuwotcherera njira slag kuyeretsa kuyenera kuchitika pafupipafupi, poyerekeza ndi kuwotcherera basi, kuwotcherera zokolola ndi otsika.
4) Osagwiritsa ntchito zitsulo zapadera ndi kuwotcherera mbale woonda.Kwa zitsulo zogwira ntchito ndi zitsulo zosasungunuka, chifukwa zitsulozi zimakhudzidwa kwambiri ndi kuipitsidwa kwa okosijeni, chitetezo cha electrode sikokwanira kuti tipewe makutidwe ndi okosijeni azitsulo izi, chitetezo sichili bwino, khalidwe la kuwotcherera silikugwirizana ndi zofunikira. kotero simungagwiritse ntchito kuwotcherera arc electrode.Zitsulo zotsika zosungunuka ndi ma alloys ake sangathe kuwotcherera ndi kuwotcherera arc electrode chifukwa kutentha kwa arc ndikwambiri kwa iwo.
4. Ntchito zosiyanasiyana
1) Yogwiritsidwa ntchito pazowotcherera zonse, makulidwe a workpiece pamwamba pa 3mm
2) zitsulo zowotcherera: zitsulo zomwe zimatha kuwotcherera zimaphatikizapo chitsulo cha carbon, chitsulo chochepa cha aloyi, chitsulo chosapanga dzimbiri, chitsulo chosagwira kutentha, mkuwa ndi ma aloyi ake;zitsulo zomwe zingathe kuwotcherera koma zikhoza kutenthedwa, kutenthedwa pambuyo pake kapena zonsezi zimaphatikizapo chitsulo choponyedwa, chitsulo cholimba kwambiri, chitsulo chozimitsidwa, ndi zina zotero;zitsulo zotsika zosungunuka zomwe sizingathe kuwotcherera monga Zn/Pb/Sn ndi ma aloyi ake, zitsulo zosasungunuka monga Ti/Nb/Zr, ndi zina.
3) Mapangidwe abwino kwambiri azinthu ndi momwe amapangira: zinthu zomwe zimakhala ndi zovuta, zokhala ndi malo osiyanasiyana, zowotcherera zomwe sizimapangidwa mosavuta kapena zimangopanga zokha;zopangira zamtengo umodzi kapena zochepa zowotcherera ndi ma dipatimenti oyika kapena kukonza.
Nthawi yotumiza: Oct-27-2022