A lokacin waldawar fusion, ƙarƙashin aikin tushen zafin walda, ɓangaren ƙarfe na ruwa mai wani nau'in siffar geometric da aka samar akan walda ta narkakkarwar lantarki da ƙarfen tushe na ɗan lokaci shine narkakken tafkin.Bayan sanyaya, ya zama walda, don haka zazzabi na narkakken tafkin yana rinjayar ingancin walda kai tsaye.
Idan yawan zafin jiki na narkakkar tafki yana da girma, narkakken tafkin yana da girma, kuma ƙarfe na ƙarfe yana da ruwa mai kyau, yankin fusion yana da sauƙi don haɗawa;amma lokacin da zafin jiki ya yi yawa, narkakkar baƙin ƙarfe yana da sauƙin digo, kuma gefen baya na walda mai gefe ɗaya da kafawar fuska biyu yana da sauƙi a ƙone ta, ya haifar da kumbura, da siffa.Yana da wuyar sarrafawa, kuma filastik na haɗin gwiwa yana raguwa, kuma haɗin gwiwa yana da sauƙi don fashewa;idan zafin tafkin narkakkar ya yi ƙasa kaɗan, tafkin narkakkar ƙanƙanta ne, narkakken ƙarfen ya yi duhu, kuma ruwa ya yi rauni.Abu ne mai sauƙi don samar da lahani kamar shigar da bai cika ba, rashin haɗin kai, da haɗar slag.
Saboda haka, yadda ya kamata sarrafa zafin jiki na narkakken tafkin yana da matukar muhimmanci don tabbatar da tasirin walda da ingancin samfurin da aka gama.
Hoto na 1 Tianqiao walda
Zazzabi na narkakken tafkin yana da alaƙa da kusanci da walƙiyar halin yanzu, diamita na lantarki, hanyar sufuri, kusurwar lantarki, da lokacin ƙonewar baka.Ana ɗaukar matakan da ke biyowa don sarrafa yanayin zafi na narkakken tafkin bisa ga abubuwan da suka dace.
1. Welding halin yanzu da lantarki diamita
Wadannan bangarori guda biyu muhimman abubuwa ne na walda, kuma su biyun kuma suna da alaka maras rabuwa.A lokacin waldawar fusion, abin da ke gudana a baya ta hanyar walda ana kiransa walda halin yanzu.Diamita na lantarki yana nufin girman ɓangaren giciye na sandar ƙarfe mai filler.A cikin sauki sharuddan, ko waldi sanda za a iya yadda ya kamata narke ne m ta halin yanzu wuce.
Idan halin yanzu yana da ƙanƙanta, yana da wuya a fara baka, lantarki yana da sauƙi don mannewa da waldawa, ma'aunin kifi yana da kauri, kuma bangarorin biyu ba a haɗa su ba;idan na yanzu ya yi girma sosai, fantsama da hayaƙi yayin waldawa za su yi girma, wutar lantarki za ta yi ja, kuma saman narkakken tafkin zai yi haske sosai.Yana da sauƙi a ƙone ta hanyar da aka yanke;lokacin da halin yanzu ya dace, yana da sauƙi don ƙonewa kuma baka ya tsaya tsayin daka, fantsama ƙanƙanta ne, ana iya jin sautin ƙarar uniform, bangarorin biyu na kabu na walda a hankali canzawa zuwa kayan tushe, ma'aunin kifin saman yana da kyau sosai. bakin ciki, kuma waldi slag yana da sauki Kashe.Dangane da aikace-aikacensa, akwai alaƙa masu rikitarwa.
1.1 Zaɓi walƙiyar halin yanzu da diamita na lantarki bisa ga sarari matsayi na weld
A tsaye, a kwance da madaidaici, na yanzu ya yi daidai da na walda mai lebur, kuma na yanzu ya kamata ya zama kusan 10% karami fiye da na walda.
Hakazalika, a tsaye, a kwance, da madaidaici, diamita na lantarki yakan yi ƙasa da na walda mai lebur.Alal misali, a cikin lebur ɗin farantin da ya fi girma fiye da 12mm, ana amfani da wutar lantarki 5.0mm sau da yawa., Kuma kusan babu na'urar lantarki mai diamita na 5.0mm a tsaye, a kwance da madaidaici.
1.2 A waldi halin yanzu da lantarki diamita aka zaba bisa ga waldi matakin na waldi.
Alal misali, ga 12mm lebur farantin butt gidajen abinci, 3.2mmTianqiao lantarkiana amfani da su gabaɗaya don ƙasan Layer na walƙiya mai lebur, kuma walƙiyar halin yanzu shine 90-110A, da 4.0mmTianqiao lantarkiAna iya amfani dashi don cikawa da murfin murfin, kuma walƙiyar halin yanzu shine 160-175A.
Saboda haka, zaɓi mai ma'ana na halin yanzu na walda da diamita na lantarki na iya sarrafa yanayin zafi na narkakken tafkin cikin sauƙi, wanda shine tushen ingantaccen walƙiya.Idan walda halin yanzu ne ma kananan, da zafin jiki na waldi pool ne ma low, sa baka ya zama m, kuma workpiece iya ba za a welded ta.Idan walda halin yanzu ne ma high da kuma zafin jiki na narkakkar pool ne ma high, zai haifar da tsanani splashing da kwarara na narkakkar karfe, kuma ko da ƙone ta cikin workpiece samar da walda dutsen dutse.
Dangantaka tsakanin walda halin yanzu da diamita na lantarki da aka jera a kasa.Kuna iya yin zaɓi mai ma'ana dangane da gogewar ku ko halaye.Ba kwa buƙatar ƙayyade sigogi iri ɗaya kamar sauran, idan dai kuna jin ya dace kuma ku tabbatar da samuwar weld mai kyau.
2. sufuri na walda sanda
Thesandar waldaana ciyar da shi a cikin shugabanci na narkakkar tafkin tare da axis.Bayan an narke sandar walda, ana iya ci gaba da kiyaye tsawon baka.Don haka ana buƙatar saurin sandar walda a cikin alƙawarin narkakken tafkin ya zama daidai da saurin narkewar sandar walda.
Idan saurin ciyarwar na'urar ya yi ƙasa da saurin narkewar wutar lantarki, tsayin baka zai ƙaru a hankali, yana haifar da katsewar baka;idan gudun ciyarwar na'urar ta yi sauri, za a gajarta tsayin baka da sauri, kuma ƙarshen na'urar za ta zama gajeriyar kewayawa a cikin hulɗa da walda.Kashe baka.
Hoto na 2 Tianqiao walda
3. kusurwar bayarwa da matsayi na ciyarwa
A lokacin waldi, kusurwar na'urar ya kamata ya canza tare da matsayi na waldi, kuma ko da yaushe kiyaye yanayin zafi na narkakken tafkin a ɓangarorin biyu na m baki dace.Idan zafin jiki ya yi yawa, zai haifar da konewa, kuma idan ya yi ƙasa sosai, zai haifar da yanayin rashin isashen shiga da haɗuwa.Lokacin da kusurwar da ke tsakanin wutar lantarki da jagorancin waldawa ya kasance digiri 90, arc yana mai da hankali kuma yanayin zafi na narkakken tafkin yana da girma;
Idan kusurwar ya zama karami, za a tarwatsa baka kuma zafin narkakken tafkin zai yi ƙasa.Alal misali, idan kasan Layer na 12mm lebur waldi hatimi, idan waldi sanda kwana ne 50-70 digiri, da zafin jiki na narkakkar pool za a saukar a wannan lokaci, da kuma sabon abu na walda dutsen ado ko tashi a kan baya gefe. an kauce masa.Ga wani misali, bayan canza walda sanda a kasa na 12mm farantin a tsaye waldi hatimi, mu yi amfani da 90-95 digiri na waldi sanda kwana a lokacin da safarar waldi sanda, sabõda haka, da zazzabi na narkakkar pool za a iya da sauri ƙara, da Za a iya buɗe ramin narkakkar da kyau, kuma an kafa saman baya da ɗan lebur, wanda za a iya sarrafa shi sosai.Al'amarin da cewa haɗin gwiwa batu ne concave.
Idan matsayin ciyarwar lantarki bai isa ba, zai haifar da rashin isashen shiga ko tsagi.Saboda baƙar fata yana da ɗan tarwatsewa a wannan lokacin, zafin narkewa na ɓacin rai na kayan tushe bai isa ba, yana haifar da haɓakar kayan tushe a ƙasa;idan kana so ka cika narke karfe, dole ne ka ƙara lokacin narkewa.Welding, babban matsayi mai yawa na narkakkar tafkin zai haifar da al'amuran haɗar slag.
Hanyar da ta dace ita ce mika sandar walda a cikin ƙugi mai laushi a kusurwar digiri 75, daidaita kayan tushe na tsagi don narke da juyawa a bangarorin biyu, kowane mataki yana ɗaukar kimanin 1 seconds, ya zuwa yanzu an kafa tafki na farko. sannan ya shiga na gaba Samuwar tafki narkakkar.A wannan lokacin, lokacin narkewa na kowane tafki narkakkar yana da gajere kuma nauyi yana da sauƙi, kuma bai dace da haifar da faɗuwa ba, kuma kullin walda ba zai yi ba.Tsagi mara zurfi kuma yana da amfani ga waldawar murfin murfin.
Tafkin na ƙarshe ya ƙunshi 2/3 na wanda ya gabata.Kowane tafkin da aka narkar da shi ya fi sirara, kuma na baya yana yin tasiri bayan zafi a kan na baya, yana tabbatar da cewa iskar gas a cikin narkakken tafkin yana da isasshen lokacin da zai cika da kuma hana shi samar da shi.Stomata
Hoto na 3 Tianqiao walda
4. Arc lokacin ƙonewa
A cikin yi koyarwa a kwance da kuma tsaye kafaffen waldi na 57 × 3.5 bututu, da baka-karya Hanyar da ake amfani da waldi.Lokacin fara walda, zafin jiki na tushe yana da ƙasa.Idan ba'a sanya sandar walda zuwa gefen tsagi ba, narkakkar ƙarfen zai yi sauri ya koma baya kuma ya haifar da yankewa.Tsarin weld kuma zai kasance mai girma da kunkuntar, wanda ba zai cimma sakamako na santsi mai yawa ba, kuma yana da sauƙi Sakamakon da aka samu ba a haɗa shi ba.
Yin nazari daga siffar narkakkar tafkin, idan yana cikin siffar ɗigon ruwa mai faɗowa, babu shakka siffar waldadden ba ta da kyau, kuma ƙirar walda tana iya faruwa.Saboda haka, waldi batu ya kamata a cikakken preheated daga sama waldi.The kwana tsakanin lantarki da bututu ne 75 digiri.Bayan an kunna baka, an shimfiɗa baka don preheating.Bayan digon farko na narkakkar baƙin ƙarfe a kan electrode ya faɗi, ana aika da lantarki.
Yawan zafin jiki na narkakken tafkin a wannan lokacin ya kamata a tabbatar da cewa girman narkakken tafkin shine fadin tsagi tare da kusan 1 mm, ta yadda za a iya narkar da kayan tushe gaba daya a cikin digo don samar da walda.
A cikin ainihin aikin walda, ya zama dole a koyi lura da canje-canjen yanayin zafi na narkakkar tafkin da kuma sanin hanyar da za a iya sarrafa zafin narkakken tafkin yadda ya kamata, wanda shine tushen koyan fasahar walda.Wajibi ne a iya yin hukunci akan kusurwar sandar walda, matsayi na ciyarwa da lokacin narkewa bisa ga narkewar tafkin kowane bangare, da sauri fahimtar fasahar aiki na sassa da yawa, kuma bayan wani lokaci na ainihin horo, matakin fasaha zai inganta. da sauri, da kuma faruwar adadin lahani daban-daban na walda Mahimmanci, yana haɓaka ƙarfin ƙarfi a cikin hadaddun walda na gini, wanda ke da haɓaka haɓaka fasahar walda a nan gaba.
Lokacin aikawa: Yuli-15-2021