Isingeniso
Ezindaweni zezimboni ezifana nokukhiqizwa kwezimoto kanye nokukhiqizwa kwempahla yasendlini, ikhwalithi yamajoyinti ashiselwe inquma ngokuqondile amandla esakhiwo kanye nempilo yesevisi yemikhiqizo. IMedium Frequency Spot Welder, njengemishini eyinhloko ekushiseleni ukumelana nesimanje, kufanele ihlangabezane nezidingo eziqinile kuzo zonke izilinganiso eziningi ezihlanganisa isayensi yezinto zokwakha, izakhiwo zokukhanda, nokuzinza kwenqubo. Le ndatshana ihlaziya ngokuhlelekile uhlelo lwenkomba yekhwalithi yamajoyini akhiqizwe abashiseli bamabala amaphakathi ukusuka kumibono emithathu: izindinganiso zamazwe ngamazwe, imingcele yenqubo, nezindlela zokuhlola, ihlinzeka ngezinkomba zokulawulwa kobuchwepheshe kumabhizinisi okukhiqiza.
I. Uhlaka Oluyisisekelo Lwekhwalithi Yamajoyinti Ashisela Imvamisa Emaphakathi
Ngokuvumelana namazinga we-ISO 14373 kanye ne-GB/T 10433, amalunga afanelekile akhiweMedium Frequency Spot Welderkufanele ihlangabezane nezidingo ezine ezibalulekile:
- Ukulawula Usayizi we-Nugget
Isidingo Sobubanzi: Ububanzi be-nugget kufanele bufinyelele (√t) × (4~5) mm (lapho u-t kuwubukhulu beshidi elincanyana). Isibonelo, lapho ushisela ishidi lensimbi engu-1.2mm, ububanzi be-nugget kufanele bulawuleke phakathi kuka-4.8 ~ 6.0mm.
Izinga Lesilinganiso Sokungena: Ukujula kokungena kwe-Nugget kokubalulekile kwesisekelo kufanele kube Kukhulu noma kulingane no-20% wogqinsi lweshidi, futhi umehluko wezinga lokungena phakathi kwamashidi amabili akufanele udlule u-15%.
- Izinkomba Zokusebenza Kwemishini
Amandla E-Shear: Kufanele Abe Makhulu noma alingane no-350MPa kumajoyinti ensimbi futhi Amakhulu noma alingane no-220MPa kumajoyinti e-aluminium alloy. Ukuhlolwa kwamabhokisi ebhethri emoto yamandla amasha ashiselwe kubonisa ukuthi uhla lokuguquguquka kwe-shear force lwamajoyinti enziwe ngama-medium frequency spot welder alawulwa ngaphakathi ku-±5%.
Impilo Yokukhathala: Amajoyinti ensimbi angu-DP780 aphezulu-ashiselwe ngefrikhwensi emaphakathi kufanele abe namandla okukhathala Amakhulu noma alingane no-180MPa ngaphansi kwemithwalo yomjikelezo engu-10^6.
- Ukucaciswa Kwekhwalithi Yobuso
Ukujula Kokuhleleka: Akumele kudlule u-15% wogqinsi lweshidi. Ngeshidi lensimbi eligoqiwe elingu-0.8mm-, lokhu kusho Ngaphansi noma kulingana no-0.12mm.
Spatter Control: No more than 3 spatter particles with diameter >0.5mm endaweni yokushisela. Amashisela amabala aphakathi nendawo anganciphisa ukwenzeka kwe-spatter kube ngaphansi kuka-2% ngobuchwepheshe be-DC inverter.
- Izidingo Microstructural
Ukushisa-ububanzi bendawo ethintekile Ngaphansi noma kulingana no-0.4mm, okuqukethwe kwe-martensite<8% (for dual-phase steel), and grain size controlled at ASTM grade 10 or higher. Data from a home appliance company shows that 304 stainless steel joints welded with medium frequency achieved a grain size of grade 12, significantly better than those from traditional AC welders.
II. Ithonya Lokusebenza Kwezinhlaka Zenqubo Yokushisela Imvamisa Emaphakathi Kukhwalithi
IMedium Frequency Spot Welderiqinisekisa ikhwalithi ehlanganyelwe ihlangabezana nezindinganiso ngokulawula ngokunembile amapharamitha amathathu abalulekile:
- Ukunemba Kwamanje Kwe-Welding (±1.5%)
Ukuminyana kwamanje kudinga ukufika ku-80~120A/mm². Ukuzijwayeza embonini yezimoto kubonise ukuthi ukukhula kwamandla kusuka ku-8kA kuya ku-9kA kukhuphule ububanzi be-nugget kusuka ku-5.1mm kuya ku-6.3mm kanye namandla okugunda ngo-18%.
Imodi yokulawula yamanje eyingqayizivele ye-medium frequency inverter technology iqeda imiphumela yokuguquguquka kwegridi, iqinisekisa ukuthi ukuzinza kwamanje kufinyelela ku-99.5%.
- Ukulawula Isikhathi Sokushisela (1~500ms)
Iphutha lesikhathi kufanele libe Ngaphansi noma lilingane no-±0.5ms. Uma ushisela amashidi awugqinsi angu-0.6mm+1.0mm ahlukene, usebenzisa-ukulawula isikhathi sezigaba ezintathu ({5}}ngaphambi{5}}ukucindezela okungu-50ms, ukushisela okungu-200ms, ukubamba okungu-100ms)i-medium frequency spot welderukufana kwe-nugget okuthuthukisiwe ngo-40%.
- I-Electrode Pressure Stability (±2%)
Amanani okucindezela ngokuvamile angu-2~6kN. Ukushintshashintsha kwengcindezi kungabangela ukuchezuka kobubanzi be-nugget kufika ku-±0.3mm. Umkhiqizi wezimpahla ezimhlophe usebenzise isistimu ye-servo pressure yesishiseli sendawo yefrikhwensi emaphakathi ukuze alawule ukuguquguquka kwengcindezi phakathi kuka-±0.05kN.
III. Izindlela Zokuhlola Ikhwalithi kanye Nezinhlelo Zokulawula Inqubo
- Ukuhlola Okulimazayo
Ukuhlolwa Kweshishi: Isebenzisa ithuluzi le-wedge engu-45℃ukuhlukanisa indawo yokushisela. I-nugget efanelekayo kufanele ihlale kunoma yiliphi ishidi. Ukuhlolwa kokuqinisekisa ekushiselweni kwemojuli yebhethri yamandla amasha kubonise izinga lokuphasa elingu-99.7%.i-medium frequency spot welderamalunga.
Ukuhlolwa kwe-Metallographic: Isebenzisa i-500x electron microscopy ukuze ibuke isigaba esiphambanayo-se-nugget. I-Porosity kufanele ibe<5% and crack length <0.1mm.
- Amasu -Okuhlola Okulimazayo (NDT)
Ukuhlolwa Kwe-Ultrasonic: Ukusebenzisa i-probe engu-10MHz kungathola amaphutha angaphezu kuka-Φ0.3mm. Imboni yezimoto ihlanganise amapharamitha we-medium welding welding nge-ultrasonic C-ukuskena, okuthole izinga lokutholwa kokukhubazeka ku-inthanethi elingu-98.5%.
X-Ukuhlolwa kwe-ray: Ukulungiswa kufika ku-5μm kungahlonza ama-microscopic shrinkage voids ngaphakathi kwe-nugget, efaneleka ngokukhethekile i-aerospace{2}}yezinga le-aluminium alloy welding.
- Ukuqapha Inqubo Yedijithali
Ama-welder amabala aphakathi nendawohlanganisa amamojula okuqapha okunamandla. Ngokuqoqa ijika lokumelana ngesikhathi sangempela-ngesikhathi sokushisela (bona umfanekiso), okudidayo kwekhwalithi kungabikezelwa ngo-10ms kusengaphambili. Ngemva kokusebenzisa lobu buchwepheshe, inkampani eyodwa yehlise izinga lokungasebenzi kahle kwezinqubo lisuka ku-0.8% laya ku-0.12%.
Isistimu-yepharamitha协同 yokuhlaziya (-yamanje-ingcindezi-ukususwa) isebenzisa ukufunda komshini ukwakha isizindalwazi samasethi enqubo ka-2000, ifinyelela ukunemba kokubikezela kwekhwalithi okungu-92%.
IV. Izindlela Zobuchwepheshe Ezibalulekile Zokuthuthukisa Ikhwalithi
- Ukuthuthukiswa Kokuhambisana Okubalulekile
Yakha izinhlelo zokushisela ezizinikele zezinto ezinamekiwe, njengemodi "enensa-yokukhuphuka kwamanje" yamashidi ensimbi, ukuthuthukisa ukusebenza kahle kokukhipha umhwamuko we-zinc ngo-60% nokunciphisa isipatha.
- Intelligent Compensation Technology
Isistimu yesinxephezelo yokugqokwa kwe-electrode ezenzakalelayo ikala izinguquko zobubanzi be-electrode (ukunemba okungu-0.01mm) futhi ilungisa amandla welding (±3%), inwebe impilo yesevisi yama-electrode izikhathi ezingu-2.5.
- Kuvaliwe-I-Loop Process Parameter Control
Inkundla yedijithali{0}esekelwe kupharamitha yokuthuthukisa ibala iwindi lokushisela elingcono kakhulu ngokulingisa okubonakalayo. Uhlelo lokusebenza kumugqa wokukhiqiza we-compressor womoya wehlise isikhathi sokulungisa iphutha ngo-70%.
Isiphetho
Ngaphansi kwesizinda somkhakha sokukhiqiza okuhlakaniphile nokuthuthukiswa kwekhwalithi, ukulawulwa kwekhwalithi yeMedium Frequency Spot Welderamajoyinti ashintshile esuka kunkomba eyodwa yamandla ukuya kuphrojekthi yobunjiniyela ehlelekile ehlanganisa i-microstructure, ukusebenza okunamandla, nokuzinza kwenqubo. Ngenhlanganisela yobuchwepheshe bokulawula idijithali nezindlela zokuhlola ezihlakaniphile, abashiseli bezindawo zesimanje abaphakathi nendawo bangakwazi ukuzinzisa izilinganiso zeziqu ezihlanganyelwe ngaphezu kuka-99.9% futhi behlise izindleko zokulahleka kwe-scrap ngo-60%. Ngokusetshenziswa kwamazinga amasha afana ne-IEC 62108 kanye nokusetshenziswa okujulile kombono womshini kanye nobuchwepheshe bedatha enkulu yemboni, ukulawulwa kwekhwalithi yezinqubo zokushisela amabala aphakathi nendawo nakanjani kuzodlulela{5}enkathini yobuhlakani obunembayo, kunikeze iziqinisekiso zokuxhumeka ezinokwethenjelwa zokukhiqiza{6}}okusezingeni eliphezulu.
