Ubuchwepheshe bokulinganisa ubukhulu be-ultrasonic
1.Izidingo ze-lithiumibhethrii-electrode net enamathela isilinganiso
I-electrode yebhethri ye-lithium yakhiwa umqoqi, okokumboza ebusweni A no-B. Ukufana kokuqina kwenamathela kuyipharamitha yokulawula eyinhloko ye-lithium battery electrode, enomthelela obalulekile ekuphepheni, ekusebenzeni nasezindlekweni zebhethri ye-lithium. Ngakho-ke, kunezidingo eziphakeme zemishini yokuhlola ngesikhathi senqubo yokukhiqiza ibhethri ye-lithium.
I-2.X-ray yokudlulisela indlela hlanganaingumthamo womkhawulo
I-Dacheng Precision ingumhlinzeki wesixazululo sokulinganisa i-electrode yamazwe ngamazwe ohamba phambili. Ngaphezulu kweminyaka eyi-10 yocwaningo nentuthuko, inochungechunge lwemishini yokulinganisa enembayo kanye nokuzinza okuphezulu, njengegeji ye-areal density gauge ye-X/β-ray, igeji yokuqina kwe-laser, ukushuba kwe-CDM kanye ne-real density gauge edidiyelwe, njll., ekwazi ukuzuza ukuqapha ku-inthanethi kwe-lithium-ion battery electrode's core coating, ugqinsi lwezikhombo, okuhlanganisa nenani lokuqina lendawo. ukuminyana.
Ngaphandle kwalokho, i-Dacheng Precision yenza izinguquko kubuchwepheshe bokuhlola okungabhubhisi, futhi yethule i-Super X-Ray areal density gauge esekelwe kuzitholi ze-solid state semiconductor kanye ne-infrared thick gauge esekelwe kumgomo wokumuncwa kwe-spectral ye-infrared. Ubukhulu bezinto eziphilayo bungalinganiswa ngokunembile, futhi ukunemba kungcono kunemishini evela kwamanye amazwe.
Umfanekiso 1 Super X-Ray areal density gauge
3.Ultrasonictukukhuphukami-easurementtubuchwepheshe
I-Dacheng Precision ibilokhu izibophezele ocwaningweni nasekuthuthukisweni kobuchwepheshe obusha. Ngaphezu kwalezi zixazululo zokuhlola ezingenhla ezingabhubhisi, futhi ithuthukisa ubuchwepheshe bokulinganisa ukushuba kwe-ultrasonic. Uma kuqhathaniswa nezinye izixazululo zokuhlola, ukukala ukushuba kwe-ultrasonic kunezici ezilandelayo.
3.1 Isimiso sokukala ukushuba kwe-ultrasonic
I-Ultrasonic thickness gauge ikala ukujiya ngokusekelwe kumgomo we-ultrasonic pulse reflection method. Lapho i-pulse ye-ultrasonic ekhishwa i-probe idlula entweni elinganisiwe ukuze ifinyelele ezindaweni ezibonakalayo, i-pulse wave iboniswa emuva ku-probe. Ubukhulu bento elinganisiwe bunganqunywa ngokulinganisa ngokunembile isikhathi sokusakazeka kwe-ultrasonic.
H=1/2*(V*t)
Cishe yonke imikhiqizo eyenziwe ngensimbi, ipulasitiki, izinto eziyinhlanganisela, i-ceramics, ingilazi, i-glass fibre noma irabha ingalinganiswa ngale ndlela, futhi ingasetshenziswa kabanzi ku-petroleum, amakhemikhali, i-metallurgy, ukwakha imikhumbi, izindiza, i-aerospace kanye neminye imikhakha.
3.2Aizinzuzokwe uisilinganiso sobukhulu be-ultrasonic
Isixazululo esivamile sisebenzisa indlela yokudlulisa i-ray ukukala inani eliphelele lokumboza bese kusetshenziswa ukususa ukuze kubalwe inani lenani lenetha lenetha le-lithium yebhethri ye-electrode. Nakuba i-gauge yobukhulu be-ultrasonic ingakala ngokuqondile inani ngenxa yesimiso sokulinganisa esihlukile.
①Igagasi le-Ultrasonic linokungena okuqinile ngenxa yobude balo obufushane, futhi lisebenza ezinhlobonhlobo zezinto.
② Insimbi yomsindo we-Ultrasonic ingagxilwa endaweni ethile, futhi ihamba ngomugqa oqondile phakathi nendawo, ngokuqondisa okuhle.
③ Asikho isidingo sokukhathazeka ngendaba yokuphepha ngoba ayinayo imisebe.
Kodwa-ke, naphezu kweqiniso lokuthi ukukala ukushuba kwe-ultrasonic kunezinzuzo ezinjalo, uma kuqhathaniswa nobuchwepheshe bokulinganisa ukushuba okuningana i-Dacheng Precision esele ilethe emakethe, ukusetshenziswa kokulinganisa ukushuba kwe-ultrasonic kunokulinganiselwa ngale ndlela elandelayo.
3.3 Imikhawulo yohlelo lokusebenza yokulinganisa ukushuba kwe-ultrasonic
①I-Ultrasonic transducer: I-ultrasonic transducer, okungukuthi, i-ultrasonic probe okukhulunywe ngayo ngenhla, iyingxenye eyinhloko yamageji okuhlola ama-ultrasonic, akwazi ukudlulisa nokwamukela amagagasi okushaya kwenhliziyo. Izinkomba zayo eziyinhloko zemvamisa yokusebenza kanye nokunemba kwesikhathi zinquma ukunemba kokulinganisa ukushuba. I-transducer ye-ultrasonic ephezulu yamanje isancike ekuthengisweni okuvela phesheya, okuyintengo yayo ebizayo.
②Ukufana kwezinto: njengoba kushiwo ezimisweni eziyisisekelo, i-ultrasonic izoboniswa emuva kuma-interfaces wezinto ezibonakalayo. Ukucabangisisa kubangelwa izinguquko ezingazelelwe ku-acoustic impedance, futhi ukufana kwe-acoustic impedance kunqunywa ukufana kwezinto. Uma into ezolinganiswa ingafani, isignali ye-echo izoveza umsindo omkhulu, okuthinta imiphumela yokulinganisa.
③ Ukuqina: ubulukhuni obungaphezulu bento elinganisiwe buzobangela i-echo eboniswayo ephansi, noma ngisho nokungakwazi ukwamukela isignali ye-echo;
④Izinga lokushisa: ingqikithi ye-ultrasonic iwukuthi ukudlidliza komshini kwezinhlayiya eziphakathi kusakazwa ngendlela yamagagasi, angenakuhlukaniswa nokuxhumana kwezinhlayiya eziphakathi. Ukubonakaliswa kwe-macroscopic yokunyakaza okushisayo kwezinhlayiya eziphakathi ngokwazo izinga lokushisa, futhi ukunyakaza okushisayo kuzothinta ngokwemvelo ukuxhumana phakathi kwezinhlayiya eziphakathi. Ngakho izinga lokushisa linomthelela omkhulu emiphumeleni yokulinganisa.
Ngokulinganisa okujwayelekile kwe-ultrasonic ukushuba okusekelwe kumgomo we-pulse echo, izinga lokushisa lezandla zabantu lizothinta izinga lokushisa lokuhlola, ngaleyo ndlela kuholele ekukhukhuleni kwephuzu elinguziro legeji.
⑤Ukuzinza: igagasi lomsindo ukudlidliza kwemishini kwezinhlayiya ezimaphakathi ngendlela yokusabalalisa kwamagagasi. Ingathinteka ekuphazamisekeni kwangaphandle, futhi isignali eqoqiwe ayizinzile.
⑥I-Coupling medium: i-ultrasonic izoncipha emoyeni, kuyilapho ingasakazwa kahle oketshezini nasezintweni eziqinile. Ukuze uthole kangcono isignali ye-echo, i-liquid coupling medium ivame ukungezwa phakathi kwe-ultrasonic probe nento elinganisiwe, engahambisani nokuthuthukiswa kohlelo lokuhlola oluzenzakalelayo oluku-inthanethi.
Ezinye izici, njengokuhlehla kwesigaba se-ultrasonic noma ukuhlanekezela, ukugoba, i-taper noma i-eccentricity yobuso bento elinganisiwe izoba nomthelela emiphumeleni yokulinganisa.
Kungabonakala ukuthi ukukala ukushuba kwe-ultrasonic kunezinzuzo eziningi. Nokho, okwamanje ayikwazi ukuqhathaniswa nezinye izindlela zokukala ukushuba ngenxa yemikhawulo yayo.
3.4UInqubekelaphambili yocwaningo lokulinganisa ubukhulu be-ultrasonickweI-DachengPukulungiswa
I-Dacheng Precision ibilokhu izibophezele ocwaningweni nasekuthuthukisweni. Emkhakheni wokulinganisa ukushuba kwe-ultrasonic, kuphinde kwenza inqubekelaphambili ethile. Eminye yemiphumela yocwaningo ikhonjiswe kanje.
3.4.1 Izimo zokuhlola
I-anode igxilile kuthebula lokusebenza, futhi iphrofayili ye-ultrasonic ye-high-frequency probe isetshenziselwa ukulinganisa iphuzu elingaguquki.
Umfanekiso 2 Isilinganiso sobukhulu be-ultrasonic
3.4.2 Idatha yokuhlola
Idatha yokuhlola yethulwa ngendlela ye-A-scan kanye ne-B-scan. Ku-A-scan, i-X-axis, imele isikhathi sokudluliswa kwe-ultrasonic kanye ne-Y-eksisi imele umfutho wegagasi obonisiwe. I-B-scan ibonisa isithombe esinezinhlangothi ezimbili sephrofayela esihambisana nendawo yokusakazeka kwesivinini somsindo kanye ne-perpendicular endaweni elinganiselwe yento ehlolwayo.
Kusuka ku-A-scan, kungabonakala ukuthi i-amplitude ye-pulse wave ebuyisiwe lapho kuhlangana khona i-graphite ne-copper foil iphakeme kakhulu kunamanye amagagasi. Ubukhulu be-graphite enamathela bungatholakala ngokubala i-acoustic-path ye-ultrasonic wave endaweni ye-graphite.
Ingqikithi yezikhathi zedatha ye-5 yahlolwa ezindaweni ezimbili, i-Point1 ne-Point2, kanti i-acoustic-path ye-graphite e-Point1 yayingu-0.0340 us, kanti indlela ye-acoustic ye-graphite e-Point2 yayingu-0.0300 nathi, ngokunemba okuphezulu kokuphindaphinda.
Umfanekiso 3 A-scan signal
Umfanekiso 4 B-scan isithombe
Fig.1 X=450, YZ indiza B-skeni isithombe
Iphoyinti1 X=450 Y=110
Indlela ye-Acoustic: 0.0340 us
Ubukhulu: 0.0340(us)*3950(m/s)/2=67.15(μm)
Iphoyinti2 X=450 Y=145
Indlela ye-Acoustic: 0.0300us
Ubukhulu: 0.0300(us)*3950(m/s)/2=59.25(μm)
Umfanekiso 5 Isithombe sokuhlola amaphuzu amabili
4. Summarykwe lithiumibhethrii-electrode ubuchwepheshe bokulinganisa i-net coating
Ubuchwepheshe bokuhlola be-Ultrasonic, njengenye yezindlela ezibalulekile zobuchwepheshe bokuhlola obungabhubhisi, buhlinzeka ngendlela ephumelelayo neyomhlaba wonke yokuhlola izakhiwo ze-microstructure kanye nemishini yezinto eziqinile, kanye nokuhlonza ama-micro- and macro-discontinuities azo. Njengoba ibhekene nesidingo sokulinganisa okuzenzakalelayo okuku-inthanethi kwenani elihlanganisiwe le-lithium battery electrode, indlela yokudlulisela i-ray isenenzuzo enkulu okwamanje ngenxa yezici ze-ultrasonic ngokwayo kanye nezinkinga zobuchwepheshe okufanele zixazululwe.
I-Dacheng Precision, njengengcweti yokulinganisa i-electrode, izoqhubeka nokwenza ucwaningo olunzulu kanye nokuthuthukiswa kobuchwepheshe obusha obuhlanganisa nobuchwepheshe bokulinganisa ukushuba kwe-ultrasonic, okwenza umnikelo ekuthuthukisweni nasekuphumeleleni kokuhlolwa okungabhubhisi!
Isikhathi sokuthumela: Sep-21-2023
