Menene bambance-bambance tsakanin TIG (DC) da TIG (AC)?

walda kai tsaye TIG (DC) shine lokacin da halin yanzu ke gudana ta hanya ɗaya kawai.Idan aka kwatanta da AC (Alternating Current) TIG walda na halin yanzu da zarar gudana ba zai tafi sifili ba har sai walda ya ƙare.Gabaɗaya TIG inverters za su iya walda ko dai DC ko AC/DC waldi tare da ƴan injuna kasancewar AC kawai.

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Ana amfani da DC don waldawar TIG Mild Karfe/Bakin abu kuma za a yi amfani da AC don walda Aluminium.

Polarity

Tsarin walda na TIG yana da zaɓuɓɓuka uku na walda na yanzu dangane da nau'in haɗin gwiwa.Kowace hanyar haɗi tana da fa'idodi da rashin amfani.

Kai tsaye Yanzu - Electrode Negative (DCEN)

Ana iya amfani da wannan hanyar walda don abubuwa da yawa.An haɗa fitilar walda ta TIG zuwa mummunan fitarwa na inverter walda da kuma aikin dawo da kebul zuwa ingantaccen fitarwa.

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Lokacin da aka kafa baka a halin yanzu yana gudana a cikin kewayawa kuma rarraba zafi a cikin baka yana kusa da 33% a cikin mummunan gefen baka (tushen walda) da 67% a cikin kyakkyawan gefen baka (yankin aikin).

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Wannan ma'auni yana ba da zurfin shigar baka na baka a cikin yanki na aiki kuma yana rage zafi a cikin lantarki.

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Wannan rage zafi a cikin na'ura mai ba da hanya tsakanin hanyoyin sadarwa yana ba da damar ƙarin na yanzu don ɗaukar ƙananan lantarki idan aka kwatanta da sauran haɗin kai.Ana kiran wannan hanyar haɗin kai a matsayin madaidaiciyar polarity kuma ita ce haɗin da aka fi amfani da shi a walda na DC.

Kai tsaye Yanzu - Electrode Positive (DCEP)

Lokacin waldawa a cikin wannan yanayin TIG walda torch yana haɗa zuwa ingantaccen fitarwa na walda inverter da kuma aikin dawo da na USB zuwa mummunan fitarwa.

Lokacin da aka kafa baka a halin yanzu yana gudana a cikin kewayawa kuma rarraba zafi a cikin baka yana kusa da 33% a cikin mummunan gefen baka (yankin aikin) da 67% a cikin kyakkyawan gefen baka (tushen walda).

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Wannan yana nufin wutar lantarki ta kasance ƙarƙashin matakan zafi mafi girma don haka dole ne ya fi girma fiye da yanayin DCEN koda lokacin da halin yanzu ya yi ƙasa da ƙasa don hana yawan zafi ko narkewa.Aikin yanki yana ƙarƙashin matakin ƙananan zafi don haka shigar da weld ɗin zai zama marar zurfi.

 

Ana kiran wannan hanyar haɗin kai da koma baya.

Har ila yau, da wannan yanayin tasirin ƙarfin maganadisu na iya haifar da rashin kwanciyar hankali da kuma wani al'amari da aka sani da arc busa inda baka zai iya yawo tsakanin kayan da za a yi walda.Hakanan yana iya faruwa a yanayin DCEN amma ya fi yawa a yanayin DCEP.

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Ana iya tambayar menene amfanin wannan yanayin lokacin walda.Dalilin shi ne cewa wasu kayan da ba na ƙarfe ba irin su aluminum a kan yanayin al'ada na al'ada suna samar da oxide a saman. Wannan oxide an halicce shi ne saboda yanayin iskar oxygen a cikin iska da kayan kama da tsatsa a kan karfe.Duk da haka wannan oxide yana da wuyar gaske kuma yana da matsayi mafi girma fiye da ainihin kayan tushe don haka dole ne a cire kafin a iya yin walda.

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Ana iya cire oxide ta hanyar niƙa, gogewa ko wasu tsabtace sinadarai amma da zaran aikin tsaftacewa ya ƙare oxide ya fara sake fitowa.Saboda haka, da kyau za a tsaftace shi a lokacin walda.Wannan tasirin yana faruwa lokacin da halin yanzu ke gudana a cikin yanayin DCEP lokacin da kwararar lantarki zai rushe kuma ya cire oxide.Don haka ana iya ɗauka cewa DCEP zai zama kyakkyawan yanayin walda waɗannan kayan tare da irin wannan suturar oxide.Abin baƙin ciki saboda bayyanar da lantarki zuwa matsanancin zafi a cikin wannan yanayin girman na'urorin zai zama babba kuma shigar da baka zai yi ƙasa da ƙasa.

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Maganin waɗannan nau'ikan kayan zai zama zurfin shigar baka na yanayin DCEN tare da tsaftace yanayin DCEP.Don samun waɗannan fa'idodin ana amfani da yanayin walda AC.

Alternating Current (AC) Welding

Lokacin waldawa a yanayin AC na yanzu wanda injin inverter ke bayarwa yana aiki tare da abubuwa masu kyau da mara kyau ko rabin hawan keke.Wannan yana nufin halin yanzu yana gudana ta hanya ɗaya sannan ɗayan a lokuta daban-daban don haka ana amfani da kalmar alternating current.Haɗin nau'in tabbataccen abu ɗaya da ɗaya mara kyau ana kiransa zagayowar guda ɗaya.

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Yawan lokutan da aka gama zagayowar a cikin daƙiƙa ɗaya ana kiransa mitar.A cikin Burtaniya mitar canjin halin yanzu da babban hanyar sadarwa ke bayarwa shine keken keke 50 a sakan daya kuma ana nuna shi da 50 Hertz (Hz)

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Wannan yana nufin cewa halin yanzu yana canzawa sau 100 kowace daƙiƙa.Adadin zagayawa a cikin daƙiƙa guda (mita) a cikin daidaitaccen inji ana ƙididdige shi ta hanyar mitar mains wanda a cikin Burtaniya shine 50Hz.

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Yana da kyau a lura cewa yayin da mita ke ƙaruwa tasirin maganadisu yana ƙaruwa kuma abubuwa kamar su masu canji suna ƙara haɓaka aiki.Hakanan haɓaka mitar walƙiyar halin yanzu yana dagula baka, yana inganta kwanciyar hankali kuma yana haifar da yanayin walda mai iya sarrafawa.
Koyaya, wannan ka'ida ce kamar lokacin walda a cikin yanayin TIG akwai wasu tasiri akan baka.

Rufin oxide na wasu kayan zai iya shafar igiyar AC sine wanda ke aiki azaman mai gyara yana hana kwararar lantarki.Ana kiran wannan da gyaran baka kuma tasirin sa yana sa a yanke ko kuma a karkatar da ingantaccen rabin zagayowar.Sakamakon ga yankin weld shine yanayin arc mara kyau, rashin aikin tsaftacewa da yiwuwar lalacewar tungsten.

Gyaran Arc na tabbataccen rabin zagayowar

Matsalolin Waveform na Yanzu (AC).

The Sine Wave

Tashin ruwa na sinusoidal ya ƙunshi ingantacciyar sigar ginawa har zuwa iyakarsa daga sifili kafin ya koma sifili (sau da yawa ana kiransa tudu).

Yayin da yake ƙetare sifili kuma halin yanzu yana canza alkibla zuwa matsakaicin ƙimarsa mara kyau kafin daga baya ya tashi zuwa sifili (sau da yawa ana kiransa kwari) zagayowar ɗaya ta ƙare.

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Yawancin tsofaffin salon TIG welders nau'in igiyar ruwa ne kawai.Tare da haɓaka inverter na walda na zamani tare da ƙarin na'urorin lantarki na zamani sun sami ci gaba akan sarrafawa da siffata nau'in igiyar igiyar AC da ake amfani da su don walda.

The Square Wave

Tare da haɓaka injinan walda AC/DC TIG don haɗawa da ƙarin kayan lantarki an haɓaka ƙarni na injunan igiyar igiyar ruwa.Saboda wadannan lantarki controls giciye kan daga tabbatacce zuwa korau kuma akasin haka za a iya yin kusan a cikin nan take wanda take kaiwa zuwa mafi tasiri halin yanzu a cikin kowane rabin sake zagayowar saboda dogon lokaci a iyakar.

 

Ingantacciyar amfani da makamashin filin maganadisu da aka adana yana haifar da sifofin igiyoyi waɗanda ke kusa da murabba'i sosai.Abubuwan sarrafawa na tushen wutar lantarki na farko sun ba da izinin sarrafa 'kalaman murabba'i'.Tsarin zai ba da damar sarrafa ingantaccen (tsaftacewa) da mara kyau (shigarwa) rabin hawan keke.

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Yanayin ma'auni zai zama daidai + tabbatacce kuma mara kyau rabin zagayowar yana ba da ingantaccen yanayin walda.

Matsalolin da za a iya fuskanta su ne cewa da zarar tsaftacewa ya faru a cikin ƙasa da lokaci mai kyau na rabin sake zagayowar to wasu daga cikin mafi kyawun rabin sake zagayowar ba su da amfani kuma suna iya ƙara yiwuwar lalacewa ga lantarki saboda zafi.Koyaya, wannan nau'in na'ura kuma zai sami ikon sarrafa ma'auni wanda ya ba da damar lokacin ingantaccen zagayen rabin zagayowar ya bambanta tsakanin lokacin zagayowar.

 

Matsakaicin Shiga

Ana iya samun wannan ta hanyar sanya ikon sarrafawa zuwa matsayi wanda zai ba da damar karin lokaci don ciyarwa a cikin raƙuman raƙuman raƙuman raƙuman rani game da madaidaicin zagaye na rabi.Wannan zai ba da damar yin amfani da mafi girma na halin yanzu tare da ƙananan lantarki kamar ƙari

na zafi yana cikin tabbatacce (aiki).Ƙarar zafi kuma yana haifar da zurfin shiga lokacin walda a daidai gudun tafiya kamar daidaitaccen yanayin.
Rage yankin zafi da ya shafa da ƙarancin murdiya saboda kunkuntar baka.

 

Matsakaicin Tsaftacewa

Ana iya samun wannan ta hanyar sanya iko zuwa matsayi wanda zai ba da damar ƙarin lokaci don ciyarwa a cikin ingantaccen zagaye na rabi game da sake zagayowar rabi mara kyau.Wannan zai ba da damar yin amfani da halin yanzu mai aiki sosai.Ya kamata a lura cewa akwai lokacin tsaftacewa mafi kyau bayan haka ƙarin tsaftacewa ba zai faru ba kuma yuwuwar lalacewar lantarki ya fi girma.Tasiri akan baka shine don samar da wurin shakatawa mai tsafta mai tsafta tare da shiga mara zurfi.