Dry elongation
Gudun iskar gas L=[(10-12)d] L/min
Tsawon waya protruding conductive bututun ƙarfe ne bushe elongation tsawon. Mahimman ƙididdiga na gaba ɗaya shine sau 10-15 da diamita na waya L = (10-15) d. Lokacin da ma'aunin ya yi girma, ya ɗan fi girma. Bayanin ƙayyadaddun ƙanƙara ne, ɗan ƙarami kaɗan.
Busasshiyar mikewa da tsayi: Lokacin da tsawon wayan walda ya yi tsayi da yawa, mafi girman zafin juriya na wayar walda, saurin narkewar wayar walda, wanda zai iya haifar da waldawar cikin sauƙi cikin sassa, fantsama, zurfin narkewa, da konewar baka mara tsayayye. A lokaci guda, tasirin kariyar gas ba shi da kyau.
Busassun mikewa ya yi gajere: mai sauƙin ƙone bututun ƙarfe. A lokaci guda, bututun ƙarfe yana da sauƙi don matsa waya lokacin da ya yi zafi. Fashewa yakan toshe bututun ƙarfe kuma yana narkewa sosai.
Tebur 1 Daidaita dangantaka tsakanin tsawo na yanzu da bushewa
| Welding halin yanzu (A) | ≤200A | 200-350A | 350-500A |
| Dry elongation (mm) | 10-15 mm | 15-20 mm | 20-25 mm |
Gudun iskar gas
Gudun iskar gas L=[(10-12)d] L/min
Ya fi girma: yana haifar da tashin hankali, yana haifar da kutsewar iska da pores, musamman ga kayan da ke da iskar gas (kamar alloys na aluminum, gami da magnesium, da sauransu, waɗanda gabaɗaya pores ne na ciki)
Ƙananan ƙanƙara: ƙarancin kariya na iskar gas (zaka iya komawa zuwa yanayin ƙayyadaddun ƙayyadaddun, wanda ke nufin babu iskar gas mai kariya, kuma pores masu siffar zuma suna da wuya su bayyana).
Gudun iskar ba ya shafar lokacin ≤2m/s.
Ya kamata a ɗauki matakan lokacin da iska ta kasance ≥2m/s.
① Ƙara yawan iskar gas.
② Ɗauki matakan hana iska.
Lura: Lokacin da ɗigon iska ya faru, ramukan iska zasu bayyana akan walda. Dole ne a kula da wurin zubar da iska kuma ba za a iya ƙarawa ta hanyar ƙara yawan kwarara ba. Babu yadda za a gyara ramukan iska ba tare da cire su ba. Za a ƙara welded ne kawai. da yawa.
Karfin Arc
Lokacin da kauri daban-daban na faranti, matsayi daban-daban, ƙayyadaddun ƙayyadaddun bayanai, da wayoyi na walda daban-daban, an zaɓi ƙarfin baka daban-daban.
Ya fi girma: baka mai wuya, babban fantsama.
Ƙananan ƙanƙara: baka mai laushi, ƙaramin fantsama.
Ƙarfin matsi
Maƙarƙashiya sosai: Wayar walda ta lalace, ciyarwar waya ba ta da ƙarfi, kuma yana da sauƙin haifar da cunkoson waya da ƙara fantsama.
Sako da yawa: Wayar walda tana zamewa, ana aika wayar a hankali, waldar ba ta da ƙarfi, kuma hakan zai haifar da fantsama.
A halin yanzu, ƙarfin lantarki
Ƙa'idar dabara don dangantaka tsakanin halin yanzu da ƙarfin lantarki na waldi mai kariya: U = 14 + 0.05I ± 2
Ya kamata a zaba halin yanzu na walda daidai bisa kauri na kayan tushe, nau'in haɗin gwiwa da diamita na waya. A lokacin gajeren kewayawa, yi ƙoƙarin zaɓar ƙaramin halin yanzu yayin tabbatar da shigar ciki, saboda lokacin da na yanzu ya yi girma sosai, yana da sauƙi don haifar da tafkin narke don mirgina, ba wai kawai ya fashe babba ba, amma gyare-gyaren kuma yana da rauni sosai.
Wutar walda dole ne ta samar da kyakkyawan daidaituwa tare da na yanzu. Wutar walda ta yi tsayi da yawa ko ƙasa da ƙasa, wanda zai haifar da fantsama. Ya kamata wutar lantarki ta walda ta haɓaka tare da haɓaka ƙarfin walda kuma ya kamata ya ragu tare da raguwar walƙiyar halin yanzu. Mafi kyawun ƙarfin walda yana gabaɗaya tsakanin 1-2V, don haka ƙarfin walda ya kamata a cire shi a hankali.
Halin halin yanzu yana da girma da yawa: tsayin baka yana da gajeren gajere, fantsama yana da girma, jin daɗin hannun sama, sauran tsayin daka ya yi yawa, kuma bangarorin biyu ba su da kyau sosai.
Wutar lantarki ya yi tsayi da yawa: baka yana da tsayi, fantsama ya ɗan fi girma, na yanzu ba shi da kwanciyar hankali, ragowar tsayin da ya rage ya yi ƙanƙanta, walda ɗin yana da faɗi, kuma baƙar yana ƙonewa cikin sauƙi.
Sakamakon saurin walda da sauri akan walda
Gudun waldawa yana da tasiri mai mahimmanci akan ingancin ciki da bayyanar weld. Lokacin da ƙarfin lantarki na yanzu ya kasance akai:
Gudun walda yana da sauri sosai: zurfin narkewar, faɗin narkewar, da sauran tsayin da aka rage, ana yin ƙulli ko ƙulli na walda, kuma yatsun kafa suna cizon nama. Lokacin da saurin walda ya yi sauri, tasirin kariyar iskar gas zai lalace kuma ana samun sauƙi cikin sauƙi.
A lokaci guda kuma, za a ƙara saurin sanyi na ƙarfe na walda yadda ya kamata, ta yadda za a rage robobi da taurin ƙarfen walda. Hakanan zai sa gefen ya bayyana a tsakiyar walda, wanda zai haifar da ƙarancin gyare-gyare.
Gudun walda yana da jinkirin gaske: narkakkar tafkin ya zama babba, dutsen walda ya zama faffaɗa, kuma yatsun walda suna ambaliya. Ana fitar da iskar gas a cikin tafkin narkakkar cikin sauƙi saboda saurin walda. Tsarin ƙarfe na walda yana da kauri ko ƙone ta saboda zafi.
Lokacin zabar sigogi na walda, ya kamata a bi yanayin da ke gaba: weld yana da kyau a bayyanar kuma ba shi da lahani kamar ƙonewa ta hanyar, raguwa, pores, fasa, da dai sauransu. Ana sarrafa zurfin narkewa a cikin kewayon da ya dace. Tsarin walda ya tsaya tsayin daka kuma fantsama kadan ne. An yi wani sauti mai tsatsa yayin walda. A lokaci guda, ya kamata a cimma mafi girman yawan aiki.
Lokacin aikawa: Maris-10-2025