A fannin kera masana'antu na zamani.matsakaicin mitar tabo waldasun zama ainihin kayan aiki a masana'antu kamar kera motoci, samar da kayan aikin gida, da sarrafa ƙarfe saboda ingantaccen aikin walda. Koyaya, yawancin masu aiki har yanzu suna da tambayoyi game da yadda matsakaicin matsakaicin tabo walda ke aiki, musamman game da yanayin bambance-bambancen su na yanzu{1}musamman, a wane mataki na aikin walda ne kololuwar yanzu. Wannan batu ba wai kawai yana da alaƙa da ingancin walda ba amma kuma kai tsaye yana shafar makamashin kayan aiki da tsawon rayuwa. Wannan labarin zai samar da zurfafa bincike na - game da yanayin bambance-bambancen yanzu a cikin madaidaitan tabo walda daga ƙa'idodin fasaha da hangen nesa na aiki.
I. Ƙa'idar Aiki da Halayen Yanzu na Matsakaicin Tabo Welders
- Matsakaicin tabo walda suna amfani da fasahar inverter na matsakaicin mitar mitar don juyar da wutar AC mai amfani (50/60Hz) zuwa matsakaicin mitar DC (yawanci 1kHz-4kHz), wanda sai a canza shi zuwa fitarwa babban halin yanzu. Idan aka kwatanta da na'urorin walda na AC na gargajiya, abin da suke fitarwa a halin yanzu yana da kwanciyar hankali, saurin amsawa yana da sauri, kuma suna ba da izinin sarrafa makamashin walda daidai.
- A cikin wannan tsari, canjin halin yanzu a cikin amatsakaicin mita tabo waldaba a rarraba daidai gwargwado amma ana daidaita shi bisa ga matakin walda. Za a iya raba ainihin tsari zuwa matakai uku:
- Matsayin Matsi:Na'urorin lantarki suna tuntuɓar kayan aiki, suna amfani da matsa lamba don kawar da gibba. A halin yanzu a wannan mataki kadan ne ko ma sifili.
- Matakin Weld:Na'urorin lantarki suna da kuzari, kuma halin yanzu yana tashi da sauri zuwa ƙimar da aka saita don cimma haɗin ƙarfe.
- Matsayin Rike:An yanke halin yanzu, amma ana kiyaye matsa lamba don tabbatar da walƙiyar walƙiya ta ƙarfafa.
- Mabuɗin Ƙarshe:Ƙwararrun halin yanzu a lokacinmatakin weld, kuma tsawon lokacin yana da gajere sosai (yawanci ƴan milliseconds zuwa ƴan miliyon ɗari). Wannan babban halin yanzu shine ainihin yanayin samar da ingantaccen walda mai inganci{1}.
II. Ƙirƙirar Injiniya da Tasirin Abubuwan Kololuwar Yanzu
- A lokacin aiki na amatsakaicin mita tabo walda, faruwar kololuwar halin yanzu yana da alaƙa da abubuwa masu zuwa:
Kayayyakin Kayayyaki da Bukatun walda
- Ƙarfe Resistivity:Abubuwan da ke da babban juriya (misali, bakin karfe) suna haifar da ƙarin zafi a ƙarƙashin wannan halin yanzu, mai yuwuwar buƙatar ɗan gajeren lokacin kololuwa na yanzu don guje wa zafi.
- Kauri Sheet:Kauri workpieces bukatar mafi girma halin yanzu don shiga cikin karfe yadudduka. Misali, walda 2mm karfe takardar na iya bukatar kololuwar halin yanzu wuce 10kA, yayin da bakin ciki takardar waldi iya kawai bukatar 2kA-5kA.
Saitunan Ma'auni na Kayan aiki
- Saita Yanzu da Lokaci:Masu aiki suna buƙatar saita mafi girman halin yanzu da tsawon sa bisa ga buƙatun tsari. Misali, a cikin waldawar jikin mota, ana iya saita mafi girman halin yanzu zuwa 8kA tare da tsawon 20ms.
- Ƙarfin Electrode:Rashin isasshen ƙarfi yana ƙaruwa juriya na lamba, yana buƙatar mafi girma halin yanzu don diyya; Ƙarfin da ya wuce kima na iya murkushe aikin aikin, yana buƙatar ƙananan halin yanzu.
- Halayen Amsa Mai Sauƙi
Mai juyawa na matsakaicin mitar tabo walda zai iya amsa ga canje-canje na yanzu a cikin 1ms, yana tabbatar da saurin tashi zuwa mafi girman saiti yayin matakin walda. Wannan babban halin yanzu yana mai da hankali kan kuzari don narkar da ƙarfe yayin rage zafi{2}} yankin da ya shafa da kuma hana nakasar kayan aiki.
III. Shawarwari na Aiki don Haɓaka Kololuwar Yanzu
Don cikakken amfani da aikin amatsakaicin mita tabo walda, Masu aiki ya kamata su kula da abubuwan da ake amfani da su:
Daidaita Daidaitaccen Ma'aunin Tsari
- Ƙayyade madaidaicin lokaci na yanzu{0} don abubuwa daban-daban ta hanyar gwaji. Misali, waldar aluminum tana buƙatar yanayin "high halin yanzu, ɗan gajeren lokaci", yayin da zanen gadon ƙarfe na galvanized yana buƙatar tsawaita lokacin matsi don rage iskar shaka.
- Yi amfani da tsarin sa ido na ingancin walda (misali, gano juriya mai ƙarfi) don ba da amsa na gaske{2}} akan ko kololuwar halin yanzu ya dace da ƙa'idodi.
Sarrafa Yanayin Electrode
- Tsaftace na'urorin lantarki akai-akai don guje wa haɓaka juriyar lamba daga yadudduka na oxide ko gurɓatawa, wanda zai iya haifar da haɓaka mara kyau a cikin buƙata na yanzu.
- Yi amfani da zane-zane masu sanyaya ruwa{0} don hana kayan lantarki yin laushi ƙarƙashin yanayin zafi mai girma, wanda ke shafar kwanciyar hankali.
Kulawa da Kayan Aiki
- Bincika aikin inverter a kowane wata da masu canji don tabbatar da daidaiton fitarwa na yanzu.
- Daidaita na'urori masu auna firikwensin yanzu don hana karkacewar ainihin kololuwa daga ƙimar da aka saita saboda kurakuran aunawa.
IV. Hatsari da Ma'auni don Ƙwararrun Ƙwararru na Yanzu
Idan mafi girman halin yanzu na amatsakaicin mita tabo walda rashin kulawa, yana iya haifar da matsaloli masu zuwa:
- Weld Overburn:Wuce kima na halin yanzu ko tsayin daka yana haifar da narkewar ƙarfe da yawa, yana haifar da ɓarna ko fasa.
- Sayen Kayan aiki:Ci gaba da ɗaukar nauyi na aiki yana rage tsawon rayuwar inverter kuma yana ƙara farashin kulawa.
- Sharar Makamashi:Kololuwar halin da ba dole ba yana ƙara farashin wutar lantarki, yana yin tasiri sosai ga samar da sikeli{{0}.
Magani:
- Gabatar da algorithms masu daidaitawa don daidaita yanayin halin yanzu dangane da yanayin aikin aiki.
- Saita ayyukan ƙararrawar kofa na yanzu don katse hanyoyin walda mara kyau da sauri.
Kammalawa
Mafi girman halin yanzu na matsakaicin mitar tabo walda yana mai da hankali a cikin matakin walda, kuma girmansa da tsawon lokacinsa yana ƙayyade ingancin walda kai tsaye. Ta hanyar saita sigogi a kimiyance da kiyaye kayan aiki sosai, kamfanoni ba za su iya haɓaka yawan amfanin ƙasa kawai ba har ma su rage yawan kuzari da farashi. Tare da haɓaka fasahar sarrafawa ta hankali, sarrafa halin yanzu a gabamatsakaicin mitar tabo waldazai zama madaidaici, ƙara haɓaka masana'antu zuwa mafi inganci da dorewa.
