Dry elongation
Kutuluka kwa gasi L=[(10-12)d] L/mphindi
Utali wa waya wotuluka mphuno ya conductive ndi youma kutalika kwake. Chilinganizo chodziwika bwino ndi 10-15 kuwirikiza waya awiri L = (10-15) d. Muyezo ukakhala waukulu, umakhala wokulirapo pang'ono. Mafotokozedwe ake ndi ang'onoang'ono, ang'onoang'ono.
Kuwotcherera kowuma motalika kwambiri: Pamene kutalika kwa waya wowotcherera kumatalika kwambiri, kutentha kwa waya wowotcherera kumachulukira, kufulumira kusungunuka kwa waya wowotcherera, komwe kungapangitse waya wowotcherera mosavuta kuti aziphatikizana m'zigawo, kuwotcherera, kusungunuka kwakuya, ndi kuyaka kosakhazikika kwa arc. Panthawi imodzimodziyo, chitetezo cha gasi sichili chabwino.
Kutambasula kowuma kwakanthawi kochepa kwambiri: kosavuta kuwotcha mphuno ya conductive. Nthawi yomweyo, nozzle ya conductive ndiyosavuta kuyimitsa waya ikatentha. Splashes amakonda kutseka nozzle ndikusungunuka kwambiri.
Tebulo 1 Kufananiza ubale pakati pa kutalika kwapano ndi kowuma
| Welding panopa (A) | ≤200A | 200-350A | 350-500A |
| Kutalika kowuma (mm) | 10-15 mm | 15-20 mm | 20-25 mm |
Kutuluka kwa gasi
Kutuluka kwa gasi L=[(10-12)d] L/mphindi
Kukula kwambiri: kumayambitsa chipwirikiti, kuchititsa kuti mpweya ulowe ndi ma pores, makamaka pazinthu zomwe sizimva mpweya (monga ma aloyi a aluminiyamu, ma aloyi a magnesium, ndi zina zotero, zomwe nthawi zambiri zimakhala ma pores amkati).
Zing'onozing'ono kwambiri: chitetezo chochepa cha gasi (mutha kutchula malire, zomwe zikutanthauza kuti palibe mpweya woteteza, ndipo pores ngati zisa amawonekera mosavuta).
Kuthamanga kwa mphepo sikukhudzidwa pamene ≤2m/s.
Miyezo iyenera kutengedwa ngati liwiro la mphepo lili ≥2m/s.
① Wonjezerani kuchuluka kwa gasi.
② Sangalalani ndi mphepo.
Chidziwitso: Kutuluka kwa mpweya kumachitika, mabowo a mpweya amawonekera pa weld. Malo otsetsereka a mpweya ayenera kuyendetsedwa ndipo sangathe kuwonjezeredwa ndi kuwonjezereka kwa kayendedwe kake. Palibe njira yokonzera mabowo a mpweya popanda kuwachotsa. Idzangowonjezera welded. zambiri.
Mphamvu ya Arc
Pamene makulidwe osiyanasiyana a mbale, malo osiyanasiyana, mafotokozedwe osiyanasiyana, ndi mawaya owotcherera osiyanasiyana, mphamvu zosiyanasiyana za arc zimasankhidwa.
Chachikulu kwambiri: arc yolimba, kuwaza kwakukulu.
Chaching'ono kwambiri: arc yofewa, kuwomba pang'ono.
Mphamvu yokakamiza
Wothina kwambiri: Waya wowotcherera ndi wopunduka, mawaya amadyetsedwa osakhazikika, ndipo ndikosavuta kuyambitsa kuyimitsidwa kwa waya ndikuwonjezera kuphulika.
Womasuka kwambiri: Waya wowotcherera amatsetsereka, waya amatumizidwa pang'onopang'ono, kuwotcherera kwake kumakhala kosakhazikika, komanso kumayambitsa kuwotcherera.
Masiku ano, voltage
Fomula yamphamvu yolumikizirana pakati papano ndi voteji ya welding yoteteza mpweya: U=14+0.05I±2
The kuwotcherera panopa ayenera kusankhidwa molondola potengera makulidwe a zinthu m'munsi, mawonekedwe olowa ndi awiri a waya. Panthawi yachidule chaching'ono, yesetsani kusankha kamphindi kakang'ono pamene mukuonetsetsa kuti mukulowa, chifukwa pamene panopa ndi yaikulu kwambiri, n'zosavuta kuchititsa kuti dziwe losungunula lidutse, osati kungowaza kwakukulu, koma kuumba kumakhalanso kosauka kwambiri.
Mpweya wowotcherera uyenera kupanga mgwirizano wabwino ndi wapano. Mphamvu yowotcherera ndiyokwera kwambiri kapena yotsika kwambiri, zomwe zingayambitse kuwotcherera. Mpweya wowotcherera uyenera kuwonjezeka ndi kuchuluka kwa kuwotcherera pakali pano ndipo uyenera kutsika ndi kuchepa kwa kuwotcherera pano. Mpweya wabwino kwambiri wowotcherera nthawi zambiri umakhala pakati pa 1-2V, kotero voteji yowotcherera iyenera kusinthidwa mosamala.
Pakalipano ndi yaikulu kwambiri: kutalika kwa arc ndi kochepa, kuphulika ndi kwakukulu, kumverera kwa dzanja lapamwamba, kutalika kotsalira ndi kwakukulu kwambiri, ndipo mbali ziwirizo sizimasakanikirana bwino.
Mpweya wothamanga ndi wokwera kwambiri: arc ndi yaitali, splash ndi yaikulu pang'ono, panopa ndi yosakhazikika, kutalika kotsalira ndi kochepa kwambiri, kuwotcherera ndi kwakukulu, ndipo arc imawotchedwa mosavuta.
Zotsatira za liwiro kuwotcherera mwachangu pa kuwotcherera
Kuthamanga kwa kuwotcherera kumakhudza kwambiri ubwino wa mkati ndi maonekedwe a weld. Pamene mphamvu yamagetsi imakhala yosasintha:
Kuthamanga kwa kuwotcherera kumathamanga kwambiri: kuya kwa kusungunuka, kusungunuka kwa m'lifupi, ndi kutalika kotsalira kumachepetsedwa, kupanga mkanda wowotcherera kapena hump, ndipo zala zimaluma thupi. Liwiro la kuwotcherera likakhala mwachangu kwambiri, mphamvu yoteteza mpweya imawonongeka ndipo pores amapangidwa mosavuta.
Pa nthawi yomweyi, kuzizira kwazitsulo zowotcherera kudzapititsidwa moyenerera, potero kuchepetsa pulasitiki ndi kulimba kwazitsulo zowotcherera. Zidzapangitsanso kuti m'mphepete muwoneke pakati pa kuwotcherera, zomwe zimapangitsa kuti asamangidwe bwino.
Liwiro la kuwotcherera ndilochedwa kwambiri: dziwe losungunuka limakhala lalikulu, mkanda wowotcherera umakhala wokulirapo, ndipo zala zowotcherera zikusefukira. Mpweya womwe uli mu dziwe losungunuka umatuluka mosavuta chifukwa cha liwiro lowotcherera pang'onopang'ono. Kapangidwe kachitsulo ka weld ndi wandiweyani kapena kuwotchedwa chifukwa cha kutenthedwa.
Posankha magawo owotcherera, zinthu zotsatirazi ziyenera kutsatiridwa: kuwotcherera ndi kokongola m'mawonekedwe ndipo alibe chilema monga kuwotcha, kutsika, pores, ming'alu, etc. Kusungunuka kwakuya kumayendetsedwa mkati mwa njira yoyenera. Njira yowotcherera imakhala yokhazikika ndipo kuwotcherera kumakhala kochepa. Kunamveka phokoso laphokoso powotcherera. Pa nthawi yomweyi, zokolola zapamwamba ziyenera kukwaniritsidwa.
Nthawi yotumiza: Mar-10-2025