Ezinkambini ezikhula ngokushesha zamamojula ebhethri emoto yamandla amasha, amasistimu okugcina amandla e-photovoltaic, kanye {{0}nokudluliselwa kwamandla kagesi aphezulu kakhulu,I-Polymer Diffusion Welding(ngokuvamile okubizwa ngokuthi i-Diffusion Welding kulo mongo) isiphenduke ubuchwepheshe obubalulekile ekufinyeleleni ama-molecular{0}}level bonding kumabhasi e-copper kanye ne-aluminium foil flexible. Le nqubo isebenzisa izinga lokushisa eliphezulu nokucindezela ukuze kuthuthukiswe i-atomic inter-ukusabalalisa, ukwakha amalunga anokumelana nogesi okuphansi kakhulu namandla aphezulu okusebenza.
Nokho, "Lack of Fusion" (LOF)-lapho i-weld interface ingaboshiwe ngokwanele{1}}kuyibhodlela lezobuchwepheshe elivamile kubakhiqizi abaningi. Lokhu kungasebenzi akukhulisi nje kuphela ukumelana nokukhiqiza ukushisa kusixhumi kodwa kungaholela ekwahluleleni ngaphansi kokudlidliza, okungase kubangele izingozi ezinkulu zesistimu yamandla. Lesi sihloko sinikeza{4}}ukuhlaziya okujulile kwezimbangela ze-LOF futhi sinikeza amasu okuthuthukisa anenani, angokoqobo.
-Ukuhlaziya Okujulile: Kungani I-Diffusion Yakho I-Weld Ihlushwa "Ukuntuleka Kwe-Fusion"?
Ingqikithi ye-diffusion welding incike kumandla okushisa kanye nokucindezela komshini ukuletha izindawo ezimbili ngaphakathi kwebanga lokukhanga kwe-athomu. Ukushoda kwe-Fusion ngokuvamile kwenzeka lapho "ukufakwa kwamandla" noma "ukuxhumana ngokomzimba" phakathi nenqubo yokushisela kwehluleka ukuhlangabezana nomkhawulo obalulekile.
1. Ukungalingani Kokufaka Amandla: "Isixhumanisi Esibuthakathaka Kakhulu" Sezinga lokushisa nesikhathi
Izinga lokushisa lokushisela liwumshayeli oyinhloko wokusabalalisa i-athomu. Ngokuvamile, izinga lokushisa lokushisela kufanele limiswe phakathi kuka-0.5 no-0.8 izikhathi zokuncibilika ngokuphelele ($T_m$) we-base material (ku-Kelvin). Uma izinga lokushisa lisethwe liphansi kakhulu, amandla e-athomu kinetic awanele ukunqoba umgoqo wamandla ohlangene ubuso.
Ngaphezu kwalokho, i-thermal conduction lag iyimbangela enkulu ye-LOF kuma-workpieces aminyene. Isibonelo, lapho ushisela ibha yebhasi ewugqinsi eyakhiwe izingqimba eziyi-100 zefoyili yethusi engu-0.1mm, uma isikhathi sokushisela sisifishane kakhulu, ukushisa kungangena kuphela izendlalelo zangaphandle. Lokhu kubangela ukuthi indawo ewumgogodla yehluleke ukufinyelela izinga lokushisa elidingekayo, isimo sakudala "esiphekwe kakhulu ngaphandle, esingaphekwa kahle ngaphakathi".
2. Izithiyo Ezingokomzimba: Izindonga Ezingabonakali Zamafilimu E-Oxide Nokunemba Komshini
Ngenkathi ukushisela okusabalaliswayo endaweni yomoya, kusetshenziswa indlela yayo yokushisisa ehlukile, kucindezela i-oxidation enamandla, amafilimu e-oxide akhona endaweni ebonakalayo (njenge-$Al_2O_3$ kucwecwe le-aluminium) anamaphuzu okuncibilika aphezulu kakhulu. Uma ingcindezi inganele ukuchoboza le filimu emazingeni okushisa aphezulu, isebenza njengesithiyo se-insulating, esivimbela ukungena kwamangqamuzana. Ngesikhathi esifanayo, uma ukucaba kwezindawo ezishiselwe kubuthaka (ukuhwashala okudlula u-0.1mm), indawo yokuxhumana izoba ncane kakhulu kunendawo okukhulunywa ngayo, okuholela ku-microscopic voids ezindaweni{5}}okungaxhunywana nabo.
Izixazululo Ezisebenzayo: Izindlela Ezinhlanu-Zokuthuthukisa Izinyathelo Zokuqeda Ukukhubazeka Kokushisela
Ukuze kubhekwane nenkinga ye-LOF, izinkampani akufanele zithembele ekwandiseni imingcele ngokungaboni kodwa kunalokho zisungule uhlelo lwesayensi, oluvaliwe{0}}lokwenza iluphu.
1. Ukulawulwa Kwezinga Lokushisa Okunembile: Ukusungula Izinto{1}}Ezicacisiwe "I-Temperature Matrix"
Izinto ezisetshenziswayo ezihlukene zinokuzwela kwezinga lokushisa okuhluke kakhulu. Lapho ulungisa i-welder yokusabalalisa, kuyanconywa ukuthi ulandele lawa mazinga alinganiselwe wokuthuthukisa ngezigaba:
| Isicelo Scenario | I-Temp Enconyiwe. Ibanga ($^\\circ$C) | I-Pressure Range (MPa) | Key Process Logic |
| I-Aluminium Foil Flex Busbar (0.1mm x 50 izendlalelo) | 480 - 540 | 5 - 8 | Gxila ekukhuphukeni ngokushesha kwezinga lokushisa ukuze unciphise i-oxidation. |
| I-Copper Foil Flex Busbar (0.1mm x 100 izendlalelo) | 550 - 620 | 10 - 15 | Idinga isiteji sokushisa ukuze kuqinisekiswe ukungena okubalulekile. |
| I-Copper-Ukujoyina Okungafani Kwe-Aluminium | 500 - 580 | 8 - 12 | Lawula ngokuqinile isikhathi ukuvimbela ukwakheka kwama-brittle intermetallic compounds. |
2. Ukulawulwa Kwengcindezi: Imfuneko Engokoqobo Yokuxhumana Ne-Molecular
Ukucindezela akusetshenziselwa kuphela ukubopha izinto zokusebenza kodwa, okubaluleke kakhulu, ukuheha ukuguqulwa kwepulasitiki okungabonakali, okuqinisekisa ukuthintana okusondelene phakathi kwezindawo. Uma kwenzeka i-LOF yendawo, ukufana kwe-dies (isikhunta) kufanele kuhlolwe. Kunconywa ukusebenzisa ifilimu{2}}ezwelayo ukuze uhlole ukusatshalaliswa kwengcindezi, uqinisekise ukuthi{3}}ukushintshashintsha kwengcindezi yendiza kulawulwa ngaphakathi kuka-$\\pm 10%$. Ukwenyusa ukucindezela ku-12-15 MPa kungathuthukisa kakhulu i-LOF ebangelwa ukunganele kwendawo eyisicaba, kodwa kufanele kuqashelwe ukuze kuvinjelwe ukuwohloka kwe-extrusion ngokweqile emaphethelweni ocezu lokusebenza.
3. Ukuhlanza Ubuso: Izinqubo Zokuhlanza Okujulile Ngaphandle Kokwesula Okulula
Kumabhasi{{0}esidingo esikhulu sesitoreji samandla, ukusula utshwala okulula kungase kunganele ukususa{1}}uwoyela ohlezi phansi kanye namafutha. Kunconywa ukwethula i-acid pickling noma izinqubo zokuhlanza i-plasma ukuze kukhishwe izingqimba ze-oxide ezinogqinsi oludlula i-10nm. Idatha yokuhlola ibonisa ukuthi ama-workpieces angaphansi kokuhlanzwa okujulile angafinyelela ukukhuphuka kwamandla okugunda okungaphezu kuka-20% ngaphansi kwemingcele efanayo yokushisela.
Izibonelo Ezihlosiwe: Izicelo Ezihlukene Ezimbonini Ezintsha Zamandla Namandla
1. I-Aluminium Foil Flex Busbars yamabhethri e-EV: Iphansi-Ingcindezi, Iyashesha{2}}Isu Le-Weld
Kumamojula ebhethri e-EV, i-aluminium foil isengozini kakhulu ku-oxidation futhi inephoyinti eliphansi lokuncibilika. Isihluthulelo sokuxazulula i-LOF isivinini. Ngokwandisa isivinini sokuphendula amandla we-welder, inqubo yokusabalalisa iqedwa ngaphambi kokuba ifilimu ye-oxide ishube kakhulu. Isu lokucindezela okuphansi (5-7 MPa) elihlanganiswe nesikhathi esifushane kakhulu (amasekhondi angu-5-15) ngokuvamile lisetshenziswa.
2. Amabhasi Ethusi Anamandla Aphezulu{1}Aphezulu:{2}}Ingcindezi, Eqhubekayo-Isu Lezinga Lezinga lokushisa
Amabhasi kagesi awugqinsi futhi ahlakaza ukushisa ngokushesha. Isihluthulelo sokuxazulula i-LOF ukungena. Kunconywa imodi-yezigaba ezimbili zokushisisa: okokuqala, shisa kuqala ngamandla aphansi ukuya ku-$300^\\circ$C bese ubamba amasekhondi angu-20 ukuze unciphise umehluko wangaphakathi/wangaphandle. Khona-ke, khuphuka ngokushesha ufike ezingeni lokushisa lokushisela, kuhlanganiswe nokucindezela okuphezulu kwe-MPa engu-15 ngesikhathi sokubamba, ukuqinisekisa ukuhlanganisa okuphelele kwazo zonke izingqimba ze-foil yethusi.
Izeluleko Zokuthenga Nokukhethwa: Ungawukhetha Kanjani Umshini Welding Othembekile Wokusabalalisa
Lapho kukhethwa noma uthenga umshini wokushisela we-diffusion, abasebenzisi kufanele bagxile kulezi zinkomba zobuchwepheshe ezilandelayo ukuze banciphise ubungozi be-LOF ngokombono wehadiwe:
- Okuvaliwe-Ukugadwa Kwe-Loop Yesistimu Yokulawula: Ingabe okokusebenza kufaka{1}}ukuqapha kwengcindezi yesikhathi{2}}kwangempela? Ikhono lokurekhoda-inani lokucindezelwa kwesikhathi langempela phakathi ne-welding liyinkomba ebalulekile yokuhlola ukungena kwe-weld.
- Heating Uniformity: Buza mayelana nokusatshalaliswa kwezinga lokushisa kwekhoyili ye-induction noma ipuleti lokushisisa lokumelana. Umshini{1}wekhwalithi ephezulu kufanele uqinisekise ukuthi umehluko wezinga lokushisa endaweni yokusebenza ungaphakathi kuka-$\\pm 5^\\circ$C.
- Okungeyona-i-Vacuum Anti-Ubuchwepheshe Be-Oxidation: Hlola ukuthi ingabe okokusebenza kunikeza isivikelo segesi esingenayo indawo yendawo noma izakhiwo ezikhethekile zokulwa-nomoya ne-oxidation. Lokhu kubalulekile ekuxazululeni izinkinga ze-LOF ekushiseleleni kwe-aluminium ingxubevange endaweni yomoya.
Isiphetho
Ukuxazulula Ukushoda Kwe-Fusion ekushiseleni kokusabalalisa empeleni kuyindaba yokulinganisa ngokunembile izinga lokushisa, ingcindezi, isikhathi, kanye nekhwalithi yendawo. Ngokusungula-i-matrix yezinga lokushisa elithile, ukuthuthukisa i-die parallelism, nokusebenzisa ukuhlanzeka okujulile kwendawo, izinkampani zingaqeda ngempumelelo izingozi zokushisela futhi zithuthukise ukuncintisana kwemikhiqizo yazo ezimakethe ezintsha zamandla namandla. Lapho ukhetha okokusebenza, beka phambili amamodeli ngokuqapha idatha namandla okulawula izinga lokushisa{3}}okunemba okuphezulu, njengoba lokhu kuzobeka isisekelo esiqinile sokukhiqiza kwakho okuzenzakalelayo kwesikhathi esizayo.
