1. Kusankhidwa kolondola kwa magawo owotcherera
(1) kuwotcherera panopa ndi arc voteji Mu CO2 mpweya kutetezedwa kuwotcherera, pa m'mimba mwake uliwonse wa waya kuwotcherera, pali lamulo linalake pakati pa sipitter mlingo ndi kuwotcherera panopa. Mu gawo lalifupi losinthira laling'ono laposachedwa, kuchuluka kwa siponji yowotcherera kumakhala kochepa. Pambuyo polowa mu zone yabwino tinthu kusintha mkulu panopa, kuwotcherera spatter mlingo ndi yaing'ono, ndi kuwotcherera spatter mlingo ndi waukulu kwambiri pakati zone. Kutenga waya ndi awiri a 1.2 mamilimita mwachitsanzo, pamene kuwotcherera panopa zosakwana 150A kapena kuposa 300A, kuwotcherera sipatha ndi yaing'ono, ndi pakati pa awiriwo, kuwotcherera sipatha ndi lalikulu. Posankha kuwotcherera pakali pano, malo owotcherera omwe ali ndi kuchuluka kwa kuwotcherera kwa spatter ayenera kupewedwa momwe angathere, ndipo mphamvu ya arc yoyenera iyenera kufananizidwa pambuyo poti kuwotcherera kwatsimikizika.
(2) Wowotcherera waya utali wautali: The kuwotcherera waya kutambasuka kutalika (ie youma elongation) alinso ndi mphamvu pa kuwotcherera sipatha. Utali wotalikirapo waya wowotcherera umakhala wokulirapo, sipatter yowotcherera imakulirakulira. Mwachitsanzo, kwa waya ndi awiri a 1.2mm, pamene kuwotcherera panopa ndi 280A, pamene utali wautali wa waya ukuwonjezeka kuchokera 20mm kuti 30mm, kuchuluka kwa kuwotcherera sipotera ukuwonjezeka pafupifupi 5%. Chifukwa chake, ndikofunikira kuti kutalika kwa waya wowotcherera kufupikitsidwe
2. Sinthani gwero la mphamvu zowotcherera
Chifukwa cha splash mu CO2 mpweya wotetezedwa kuwotcherera makamaka mu gawo lomaliza la kusintha kwachidule, chifukwa cha kuwonjezereka kwafupipafupi kwamakono, zitsulo za mlatho wamadzimadzi zimatenthedwa mofulumira, zomwe zimapangitsa kuti kutentha kuwonongeke, ndipo pamapeto pake, mlatho wamadzimadzi umaphulika kuti upange splashes. Poganizira kusintha kwa gwero kuwotcherera mphamvu, njira monga mndandanda kugwirizana riyakitala ndi resistors, kusintha panopa, ndi ulamuliro panopa waveform mu dera kuwotcherera zimagwiritsa ntchito kuchepetsa kuphulika panopa wa madzi mlatho motero kuchepetsa kuwotcherera sipatha. Pakali pano, makina owotcherera amtundu wa thyristor-mtundu wa CO2 otetezedwa ndi makina owotcherera amtundu wa transistor-mtundu wa transistor-mtundu woyendetsedwa ndi mpweya wa CO2 agwiritsidwa ntchito, ndipo apeza bwino pakuchepetsa kuwotcherera kwa mpweya wa CO2 wotetezedwa.
3. Onjezani argon (Ar) ku mpweya wa CO2:
Pambuyo powonjezera kuchuluka kwa gasi wa argon ku mpweya wa CO2, zinthu zakuthupi ndi zamankhwala za mpweya wa CO2 zidasinthidwa. Ndi kuwonjezeka kwa chiŵerengero cha mpweya wa argon, kuwotcherera spotter pang'onopang'ono kunachepa, ndipo kusintha kwakukulu kwa sipatter kutayika kunali pamene tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono ta 0.8mm sipatter, koma zimakhala ndi zotsatira zochepa pa sipatter ndi tinthu tating'onoting'ono zosakwana 0.8mm.
Kuphatikiza apo, kugwiritsa ntchito kuwotcherera kotetezedwa kwa gasi komwe argon amawonjezedwa ku mpweya wa CO2 kumathanso kusintha mapangidwe ake. Zotsatira za kuwonjezera argon ku mpweya wa CO2 pa malowedwe a weld, m'lifupi mwake ndi kutalika kotsalira, ndi argon mu mpweya wa CO2. Kuchuluka kwa mpweya kumawonjezeka, kuya kwake kumachepa, kukula kwa maphatikizidwe kumawonjezeka, ndipo kutalika kwa weld kumachepa.
4. Gwiritsani ntchito waya wowotcherera wa spatter otsika
Kwa waya wolimba, pamawonekedwe owonetsetsa kuti mawotchi amapangidwa ndi olowa, kuchepetsa zomwe zili mu kaboni momwe zingathere, komanso moyenerera kuwonjezera zinthu za alloying monga titaniyamu ndi aluminiyamu kumatha kuchepetsa kuwotcherera sipatha.
Kuphatikiza apo, kugwiritsa ntchito waya wotchingidwa ndi mpweya wa CO2 wotchingidwa ndi mpweya kumatha kuchepetsa kuwotcherera spotter, ndipo chopaka chowotcherera chomwe chimapangidwa ndi waya wowotcherera wopangidwa ndi flux-cored ndi pafupifupi 1/3 ya waya wowotcherera wokhazikika.
5. Kuwongolera kwa ngodya yowotcherera tochi:
Pamene kuwotcherera nyali ndi perpendicular kwa kuwotcherera, osachepera kuchuluka kwa kuwotcherera sipatter amapangidwa, ndipo wamkulu ngodya ndingaliro, m'pamenenso sipatter. Pamene kuwotcherera, mbali yokhotakhota ya nyali yowotcherera sayenera kupitirira 20º.
Nthawi yotumiza: Jun-22-2022
