Ukuchaza kwezinkokhelo zokunyusa isikhathi: Indlela okunguqondwa ngolaser nebrazing kuyaphatha kahle phakathi kokunyusa isikhathi

Ukugqondwa ngolaser: ukunyusa isikhathi kusendaweni esithile, ngokushisa kahle, ngokugcina isikhathi sokunyusa isikhathi

Kukhulula kwelaser, imithambo yokuqhubeka iyakhiwa kusilwane esincinci, okunjalo kungenzeka ukuba kubizwa ngokuthi kungapansi kwehlafu millimeter. Uma amaphoton ayathathwa kule ndawo, izintemperetsha zingakhupha ngapansi kwe-1400° C ngendlela ejwayelekileyo ngemizuzwana eminingi kahle kabusha ngaphambi kokuthi kuhlanzekile kahle futhi. Okusemva kwalokho kuyajwayelekile kakhulu — indawo eyakhiwa ngokuthatha kwezintemperetsha ezihlukene kungapansi kwe-millimeter. Lokhu kuthi ukuthi izinkulungwane zezinto ezigcwele ziyabuyela kuzo zonke. Kuphakathi kwe-diamond ne-metal, ukuthatha kwezintemperetsha kuyisikhathi esincinci kakhulu, okuvumela ukuthi kugcinwe ukuthi kwenziwe i-graphitization engenakho. Izinkulungwane zokukhulula zinomkhathi ozilinganisa ngapansi kwezinsitha ezimbili ngalokho okunye, okuvumela ukuthi ukuthatha kwezintemperetsha ephakeme akhange kufika kuma-diamond ayalungile. Ngokuthi lokhu kuyasebenza ngendlela efanele kakhulu, ukukhulula nge-laser kuyasivumela ukuthi kubuyele kuzo zonke izintemperetsha zokuphepha kahle nakulokho okuthi kuyasebenza ngokuthi kubuye kuzo zonke izintemperetsha ezihlukene, okuyavumela ukuthi kuyasebenza kahle nokuthi kuyasebenza ngokuthi kubuye kuzo zonke izinto ezingenakho ukuthi kubuyele kuzo zonke izintemperetsha ezihlukene.

Ukubhaza: ukuthi isikhathi eside sokubhazwa kwezindawo zonke okusobala ngokuphakanyiswa kwezintemperatura ezide

Kodwa uma ukubhaza kwenziwa ngokuphelele, kudinga ukuthi ubunzima obuzime kube bhekhile ngokufanayo noma ku-furnace noma ngokusebenzisa i-torch ukuze izintemperetsha zifike emaphakathi kwe-800 kuya kuma-1,000 degrees Celsius futhi zilindelela lapho ngamaminithi amaningi. Ngalesi sikhathi, umetalu wokugcina wenza ukuthi wafikele kusendaweni yakho ngokusebenza kwesibonelo sokukhanya. Ingxenye yendlela yokubhaza iyisiphumo sokuthi konke kube kubhekhile ngokujikijiki, okusho ukuthi izikhathi zokulinda zingahle zibe phakade kakhulu, zingaba phakathi kwe-5 kuya kuma-15 minithi futhi izikhathi zokuhlala kwezintemperetsha zingahle zibe zinkhulu kakhulu, zingaba zinkhulu kakhulu kuye kuma-30 minithi ukuze kuvunyelwe ukuthi konke kube kufika ekuphakameni kwesintemperetsha. Lokhu wonke ukubheka kwenza iziproblemi futhi. Amadimondi ayathola ukuthi ayalwa kahle kunezinto ezingaphakathi kwayo, ametalu wokugcina angabhekela kumaphakathi akhona aphakathi kwezinto ezizime, futhi amaphakathi ayahlwa kahle kunezidingo. Izifundo zezindustria zibonisa ukuthi lezi zimo zenzela ukuthi kubuyiselwe kwezinto ezizime. Kunezinye izindlela zokusebenzisa ezinokwenzeka kahle kodwa akuzange kubhekise kwezinye izindlela eziningi. Kodwa abantu abanekhono lokusebenzisa izinto ezizime kahle kwezintemperetsha ezihlukahlukene zizoba ziyazama ukuthi lezi zintemperetsha zizime kahle kanye nokuthi kuzoba kuhlela izihlalo ngokuphakade.

Ukuhlanganisa Kwemikhono Kwezinkulungwane Zokuphakama: Ukuhlanganisa Kwemikhono Nezindlela Zokuhlukwa

Ukubheka kwezinkulungwane zokuhlanganisa, ukudala kwamaphuzu, nokufatwa kwezinkulungwane ngokwezinye emakhoneni okuhlanganisa

Kodwa izinto zizokwakha lezi ziqondi zemetalu ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti, futhi zizokwakha lezi ziqondi zemetalu ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti. Lezi ziqondi ziyakwakha izindawo ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti, futhi ziyakwakha izindawo ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti. Okunye okuphulaphuleyo kuyakwakha xa umthwalo wokubhalwa awuzokwakha kahle emasimini akho aqondi kahle. Lokhu kwenza izibhalo ezincane kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti, futhi ziyakwakha izindawo ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti, futhi ziyakwakha izindawo ezingaqondi kakhulu kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti. Uma sibheka imiphumela yezifundo ezithile ezithile, sifunda okungabonakala kakhulu: ngemiphumela yezifundo ezithile ezithile, izihlangothi ziyagcina kabusha kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti. Futhi lokhu kubalulekile kakhulu kumasevisi amaningi, njengokusebenzisa ukugcina kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti, lapho izinkampani ziyagcina kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti kusukela emva kokubhalwa kwezinto ezinamandla amaningi ngeminyaka yamadloti.

Ukuhlanya kwezinkulungwane nezindlela zokugcina imithwalo eminingi kumaphakathi okuqondwa ngolaser

Ukuqondwa ngolaser kwenza izihlalo zesiliva esikhulu ngokufaka izinto kusukela kusukela kahle, futhi kugcina indawo eyafikwa yisikhelela ngaphezu kwehelfa millimeter noma ngokujwayelekile. Le ndlela iyinika ukuthi isithembiso sesikhala sisebenza ngokuphelele phakathi kwezincwadi zediamond nezinhlobo zesiya, okuyisula izihlalo ezingenani ezimangalisayo ezibiza izinkinga. Nakuba ukugcina kahle kwenza imithwalo eminingi, ukuguqula iziphakamiso zokuqondwa ngokuphelele kungabona ukuthi kwenziwe imithwalo yokuqhubeka emhlophe eyayisula ukuthi izihlalo ziyadlula. Izifundo zibonisa ukuthi lezi zihlalo zokuqondwa ngolaser zizokhula ngeminyaka engu-90% yezinhlobo zazo zokwakhiwa ngaphambi kokuthi zibekele ngeminyaka engu-500 yezilinganiso zokushisa ngokujwayelekile kwe-600 degrees Celsius. Lokho okuhle kakhulu kubalulekile kumathuba amaningi asebhaleni apho izinto zidinga ukuthi zibe khona ngokuphelele nakuba ziyasebenza ngokuphelele ngokuphambana nokushisa okuphelele nokuzimela kwezinto ngokuphambana nesikhathi.

Ukuthembeka kwe-Diamond: Isimo sokuthi kubhekwa njenge-graphite nokuthi kukhangelwa isikhathi sokushisa

Ukuthi indlela yokubondiwa iyaphakamisa ukugcina kwe-diamond nokukhula kwayo

Kodwa uma izindiza zihlolwe kumakhemikali okungaphezulu kwe-700°C ngeminyaka engaphezulu, zibadala ngokuphambuka kwe-graphite ngokuphambuka kwezindiza ngokuphambuka kwe-Springer kusukela ku-2022. Lokhu kwenza ukuthi ukuziqonda kokubhalwa kwamakhemikali kubalulekile uma kufundiswa phakathi kwe-laser welding kunye nezindlela zokubhaza zasezantsi. Ukubhaza kuyadinga amakhemikali okungaphezulu kwe-800 kuya kwe-900°C ukuze kubhazwe lezi zinhlobo zamakhemikali njengoba kubonisiwe ku-Tech Briefs 2022. Kodwa lokhu kusho ukuthi izindiza zihlolwe ngeminyaka engaphezulu kumakhemikali okungaphezulu, okuyenza ukuthi ukuguqula kwe-carbon kusuka emaphakathini kwezindiza kubhekise kusuka kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezindiza kusukela kwezind......

Ukuhlinywa Kwempilo Yezinhlelo Zokusebenza: Ukulinganisa Kwemithambo Yokuqinisa Ngolaser Nokulinganisa Kwemithambo Yokuqinisa Ngokubhakha Ukuhlanya Kwemithambo Kwezinhlelo Ezingaphansi Kokuzimisa

Ukulinganisa Kwempilo Yendawo Kwezinhlelo Zokugcina Ngokuphinda-phinda (isibonelo, isilika esisikile, isilika sesi-ash)

Lapho kusetshenziswa izinto ezinzima njengokhonkolo oqinisiwe ne-asphalt, izingxenye zedayimane ezihlanganiswe nge-laser zisebenza kangcono kunezo ezihlanganiswe nge-brazed ngoba ziphatha ukushisa kangcono kakhulu. Ngokwezivivinyo zasensimini, kunezimo ezingaba ngu-34% ezingaphansi lapho izingxenye zikhululeka khona kuthuluzi lapho kusetshenziswa ubuchwepheshe be-laser welding. Lokhu kwenzeka ngoba isibopho sensimbi sihlala siqinile ngisho nangemva kokufudumeza izikhathi eziningana. Inkinga ngezingxenye ezifakwe i-brazed ukuthi zikhishwa emazingeni okushisa aphezulu kakhulu, ngezinye izikhathi angaphezu kuka-600 degrees Celsius lapho zisika. Ngokuhamba kwesikhathi, lokhu kwenza ukuxhumana phakathi kwezinto kube buthaka kancane kancane kuze kube yilapho amadayimane eqala ukuwa futhi yonke ingxenye yehluleka, ikakhulukazi lapho ingcindezi ihlala ingaguquguquki kulo lonke umsebenzi. Ochwepheshe bezimboni baye baphawula ukuthi amathuluzi anezingxenye ezishiselwe nge-laser aphila isikhathi eside ngama-28% lapho esebenza ngezakhiwo eziqiniswe ngensimbi. Ukushisa kuvame ukudala izikhala ezincane nezindawo ezibuthakathaka emajoyini aqoshiwe okuholela ekuqhekekeni.

Imibuzo Evame Ukubuzwa

Uyini umhlomulo oyinhloko wokushisela nge-laser uma kuqhathaniswa nokushisela ngomlilo?

I-laser welding inikeza ukushisa okuqondile nokusheshayo nomthelela omncane ezindaweni ezizungezile, igcina amandla nobuqotho bendaba, okuzuzisa ngokukhethekile ezakhiweni ezibucayi njengamadayimane.

Kungani ukugaya kungakufanelekeli kangako ukusetshenziswa emazingeni okushisa aphezulu?

Ukuxhuma i-brazing kuhilela ukuchayeka isikhathi eside emazingeni okushisa aphezulu, okungaholela ekuwohlokeni kwezinto, njengokuvuselelwa noma ukwakheka kwezikhala, okwenza ukuhlangana kube buthaka ngokuhamba kwesikhathi.

Ukushisela nge-laser kuwuthinta kanjani ingozi yokuqhekeka kwedayimane?

I-laser welding inciphisa ingozi ye-graphitization yedayimane ngokuqinisekisa ukuchayeka okuncane kakhulu kokushisa, ngokuvamile ukugcina amazinga okushisa angaphansi kuka-120 °C, okuvimbela ukuguqulwa kwe-carbon.