Emkhakheni wokukhiqiza izimboni zesimanje,medium frequency spot weldersseziphenduke izinto ezibalulekile ezimbonini ezinjengokukhiqiza izimoto, ukukhiqiza izinto zikagesi zasendlini, nokucutshungulwa kwensimbi ngenxa yokusebenza kahle nokunemba kokushisela. Kodwa-ke, o-opharetha abaningi basenemibuzo mayelana nendlela ama-medium frequency spot welders asebenza ngayo, ikakhulukazi mayelana nephethini yabo yamanje yokuhlukahluka-ikakhulukazi, phakathi kwasiphi isigaba senqubo yokushisela amanani aphezulu amanje. Lolu daba aluhlobene kuphela nekhwalithi yokushisela kodwa futhi luthinta ngokuqondile ukusetshenziswa kwamandla kwemishini nempilo yokuphila. Lesi sihloko sizohlinzeka -ngokuhlaziya okujulile kwephethini yamanje yokwehluka kumashisela amabala amaphakathi ukusuka kokubili izimiso zobuchwepheshe kanye nemibono yokusebenza okungokoqobo.
I. Isimiso Esisebenzayo kanye Nezici Zamanje Zokushisela Amabala Amaphakathi
- Amashisela amabala aphakathi nendawo asebenzisa ubuchwepheshe bokuguqula imvamisa emaphakathi ukuze aguqule amandla e-AC esetshenziswa (50/60Hz) abe amandla e-DC aphakathi nendawo (imvamisa engu-1kHz-4kHz), abese eguqulwa abe okukhipha amandla aphezulu. Uma kuqhathaniswa nabashiseli be-AC bendabuko, ukuphuma kwabo kwamanje kuzinzile, isivinini sokuphendula siyashesha, futhi bavumela ukulawula okunembile kwamandla okushisela.
- Kule nqubo, ushintsho lwamanje ku-ai-medium frequency spot welderayisakazwa ngokufanayo kodwa ilungiswa ngokuguquguqukayo ngokuya ngesiteji sokushisela. Inqubo ewumgogodla ingahlukaniswa izigaba ezintathu:
- Isiteji sokuminyanisa:Ama-electrode athintana nezinto zokusebenza, esebenzisa ingcindezi yokuqeda izikhala. Okwamanje kulesi sigaba mncane kakhulu noma ngisho uziro.
- Isiteji se-Weld:Ama-electrode anikwa amandla, futhi amanje akhuphuka ngokushesha enanini elimisiwe ukuze kuzuzwe ukuhlangana kwensimbi.
- Bamba Isiteji:I-current inqanyuliwe, kodwa ingcindezi iyagcinwa ukuze kuqinisekiswe ukuthi i-weld nugget iyaqina.
- Isiphetho Esibalulekile:Iziqongo zamanje ngesikhathi se-isiteji se-weld, futhi ubude besikhathi bufushane kakhulu (imvamisa ama-millisecond ambalwa ukuya kuma-milliseconds angamakhulu ambalwa). Lokhu kwamanje okuphezulu okusheshayo kuyisimo esiyinhloko sokwenza{1}}ikhwalithi ephezulu ye-weld nugget.
II. I-Formation Mechanism kanye Nezici Ezithonya Ze-Peak Yamanje
- Ngesikhathi sokusebenza kwe-ai-medium frequency spot welder, ukwenzeka kwamandla aphezulu kuhlobene eduze nalezi zici ezilandelayo:
Impahla Ebalulekile kanye Nezidingo Zokushisela
- I-Metal Resistivity:Izinto ezinokumelana okuphezulu (isb., insimbi engagqwali) zikhiqiza ukushisa okwengeziwe ngaphansi kwamandla afanayo, okungenzeka adinga ubude besikhathi bamanje obuphakeme obufushane ukuze kugwenywe ukushisa ngokweqile.
- Ubukhulu beshidi:Izinto zokusebenza eziwugqinsi zidinga amandla aphezulu ukuze zingene ezingqimbeni zensimbi. Isibonelo, ukushisela ishidi lensimbi engu-2mm kungadinga inani eliphakeme lamanje elidlula i-10kA, kuyilapho ukushisela kweshidi elincanyana kungadinga kuphela i-2kA-5kA.
Izilungiselelo Zepharamitha Yezisetshenziswa
- Setha ngaphambilini Okwamanje nesikhathi:Ama-opharetha adinga ukusetha amandla aphezulu kanye nobude bawo ngokuya ngezidingo zenqubo. Isibonelo, ekushiseleni umzimba wezimoto, umthamo omkhulu wamanje ungasethelwa ku-8kA ngobude obungu-20ms.
- I-Electrode Force:Amandla anganele akhulisa ukumelana nokuxhumana, okudinga amandla aphezulu ukuze anxeshezelwe; amandla amaningi angase aphihlize ucezu lokusebenzela, okudinge amandla aphansi.
- Izimpawu Zempendulo Enamandla
I-inverter ye-medium frequency spot welder ingasabela ezinguqukweni zamanje phakathi kuka-1ms, iqinisekise ukukhuphuka okusheshayo esiqongweni esisethiwe ngesikhathi sesiteji sokushisela. Lokhu kwamanje okuphezulu okusheshayo kugxilisa amandla okuncibilikisa insimbi kuyilapho kunciphisa ukushisa-indawo ethintekile futhi kuvimbela ukuwohloka kocezu lokusebenza.
III. Iziphakamiso Zokusebenza Zokuthuthukisa I-Peak Yamanje
Ukuze kusetshenziswe ngokugcwele ukusebenza kwe-ai-medium frequency spot welder, abaqhubi kufanele banake amaphuzu asebenzayo alandelayo:
Ukufaniswa Okunembile Kwezinhlaka Zenqubo
- Nquma{0}}ijika lesikhathi lamanje lezinto ezihlukene ngokuhlolwa. Isibonelo, ukushisela i-aluminium kudinga imodi "yamanje ephezulu, yesikhathi esifushane", kuyilapho amashidi ensimbi enziwe uthayela adinga isikhathi sokuminya esandisiwe ukuze kuncishiswe i-oxidation engaphezulu.
- Sebenzisa amasistimu okuqapha ikhwalithi yokushisela (isb, ukutholwa kokumelana okunamandla) ukuze unikeze{2}}impendulo yesikhathi sangempela yokuthi ingabe izinga eliphezulu liyahlangabezana yini namazinga.
Lawula Isimo Se-Electrode
- Hlanza njalo amathiphu e-electrode ukuze ugweme ukumelana nokwanda kokuxhumana kusuka ezingqimbeni ze-oxide noma ukungcola, okungaholela ekukhuphukeni okungavamile kwesidingo samanje.
- Sebenzisa-amadizayini ama-electrode apholile ukuze uvimbele okokusebenza kwama-electrode ukuthi athambe ngaphansi kwamazinga okushisa aphezulu, okuthinta ukuqina komfutho.
Ukugcinwa Kwezisetshenziswa kanye Nokulinganisa
- Hlola njalo ngenyanga ukusebenza kokufakwa kwamamojula we-inverter nama-transformer ukuze uqinisekise ukunemba kokukhishwayo kwamanje.
- Linganisa izinzwa zamanje ukuze uvimbele ukuchezuka kwenani eliphakeme langempela ukusuka kunani elimisiwe ngenxa yamaphutha okulinganisa.
IV. Ubungozi kanye Nezinyathelo Zokulwa Nezinga Eliphakeme Elingajwayelekile Lamanje
Uma umthamo omkhulu we-ai-medium frequency spot welder ingalawuleki, ingase ibangele izinkinga ezilandelayo:
- I-Weld Overburn:Ubude besikhathi eseqile noma eside ngokweqile kubangela ukuncibilika kwensimbi ngokweqile, okuholela ku-voids noma imifantu.
- Ukugqokwa Kwezisetshenziswa:Ukusebenza kokugcwala ngokweqile kwenza kube mfushane ukuphila kwe-inverter futhi kwenyuse izindleko zokuyilungisa.
- Imfucuza yamandla:Isilinganiso esiphezulu esingadingekile sinyusa izindleko zikagesi, okunomthelela omkhulu-wokukhiqiza.
Izixazululo:
- Yethula ama-algorithms okulawula okuguquguqukayo ukuze ulungise ngokuguquguqukayo okwamanje ngokusekelwe ezimeni zengcezu yokusebenza.
- Setha imisebenzi ye-alamu yamanje ukuze uphazamise ngokushesha izinqubo zokushisela ezingavamile.
Isiphetho
Umthamo omkhulu wamanje we-medium frequency spot welder ugxile esigabeni sokushisela, futhi ubukhulu nobude bawo bunquma ngokuqondile ikhwalithi yokushisela. Ngokubeka ngokwesayensi amapharamitha kanye nokugcinwa ngokuqinile kwemishini, izinkampani azikwazi nje ukuthuthukisa umkhiqizo womkhiqizo kodwa futhi zinciphise ukusetshenziswa kwamandla nezindleko. Ngokuthuthukiswa kobuchwepheshe bokulawula obuhlakaniphile, ukulawula kwamanje kwamanje kumedium frequency spot weldersizonemba kakhudlwana, iqhubeke ithuthukele ekukhiqizeni iye ekufezeni impumelelo enkulu kanye nokusimama.
