(Ceramic to Metal Assmebled PartZopangidwa ndiWintrustek)
I.Kuwunika kwa Ceramic-to-Metal Welded Components
Ceramic-to-zitsulo welded zigawo zikuluzikulundi zida zomangira zomwe zimagwiritsa ntchito njira zowotcherera mwaukadaulo kuti zipereke mphamvu zambiri, kuthina kwa gasi wambiri, komanso kulumikizana kodalirika kwamagetsi / kutentha pakati pa zida za ceramic ndi zitsulo. Amagwiritsidwa ntchito nthawi zambiri m'mapulogalamu omwe amafunikira kupirira kutentha kwambiri, kupanikizika, kapena kusungunuka.
II. Active Metal Brazing Technology
1. Mfundo Zazikulu Zaumisiri
Kuwotcha kwachitsulo komwe kumagwiritsidwa ntchito kumagwiritsa ntchito zinthu (titaniyamu, zirconium, hafnium, vanadium, ndi zina zotero) muzodzaza ndi zitsulo kuti zigwirizane ndi zoumba, zomwe zimapangitsa kuti pakhale zitsulo zomangika pazitsulo za ceramic. Zinthu zogwira ntchitozi zimakopa kwambiri mpweya, nayitrogeni, ndi kaboni. Kutenthetsa mu vacuum kapena mpweya wolowera kumapangitsa zigawo za nanoscale reaction (monga, TiO₂, TiN, TiC) pamiyala ya ceramic. Izi zimalola kuti zitsulo zilowerere ndi zitsulo zosungunuka, zomwe zimapangitsa kuti pakhale mgwirizano wodalirika wa "ceramic-reaction layer-braze joint-metal".
2. Magawo Ofunika Kwambiri
2.1 Brazing Filler Metal System:
Ag-Cu-Ti: Muyezo wamakampani, magwiridwe antchito abwino kwambiri
Cu-Ti: Mtengo wotsika, kukana kutentha kwambiri
Au-Ni-Ti: Kudalirika kwakukulu, kugwiritsa ntchito zakuthambo
Silver-Free Solder: Pazida zamagetsi zomwe zimafunikira kupewa kusamuka kwasiliva
2.2 Kuwongolera Njira:
Zofunikira Zachilengedwe: Vacuum yapamwamba (
Kuwongolera Kutentha: 20–50°C pamwamba pa solder liquidus (800–900°C pa dongosolo la Ag-Cu-Ti)
Kuwongolera Nthawi: Mphindi zingapo mpaka mphindi makumi awiri, kulinganiza kukwanira kwamachitidwe ndi makulidwe a mawonekedwe
2.3 Njira:
Pre-mankhwala: mwatsatanetsatane kuyeretsa zoumba ndi metallization mankhwala; kuchotsa zigawo za okusayidi ku zigawo zachitsulo
Kusonkhanitsira: Zomangamanga bwino, zida zachitsulo, ndi zojambulazo za solder (0.05-0.2 mm)
Vacuum Brazing: Kutuluka → Kutenthetsa mwadongosolo → Kugwira kutentha → Kuzizirira koyendetsedwa
Kuchiza pambuyo: Kuyeretsa ndi kuyendera koyambirira
III. Helium Mass Spectrometer Leak Detection Technology
1. Kufunika Kozindikira Kutayikira
Zida zowotcherera zitsulo za ceramic zimagwiritsidwa ntchito pofunikira kwambiri monga ma vacuum system ndi zida zamlengalenga. Tsimikizirani kuti akukwaniritsa pafupifupi "kusindikiza kwathunthu" (mitengo yotayikira
2. Mfundo Zazidziwitso
Pogwiritsa ntchito helium ngati gasi wofufuza, njirayo imatengera mwayi wake waung'ono wa mamolekyu, chikhalidwe cha inert, komanso kutsika kwapansi. Helium imalowa mu spectrometer ya misa kudzera pakutayikira, imapangidwa ndi ionized, yolekanitsidwa ndi maginito, ndikuzindikiridwa ndi chowunikira chapadera. Mphamvu ya siginecha imalingana ndi zomwe zili mu helium, kulola kuwerengera kwenikweni kwa kutayikira.
3. Njira Zazikulu Zodziwira
Njira 1: Njira Yonunkhiza (Kuzindikira Kutayikira Kwapafupi)
Kachitidwe:
Mkati mwa workpiece imachotsedwa ndikugwirizanitsidwa ndi chowunikira chotsitsa.
Dera la weld lakunja limawunikidwa ndi mfuti ya helium spray.
Zizindikiro zimawunikidwa munthawi yeniyeni kuti apeze malo otayira.
Makhalidwe:Oyenera kupeza kutayikira m'zigawo zing'onozing'ono, kukhudzika kwakukulu.
Njira 2:Helium Hood/Enclosure Method (Kuwunika Kukhulupirika Kwachisindikizo Konse)
Kachitidwe:
Chogwirira ntchito chimadzazidwa ndi helium ndikuyikidwa mkati mwa vacuum hood, kapena hood / sniffer yakunja imagwiritsidwa ntchito kuti izindikire.
Helium yochuluka kapena yothawa imapezeka.
Makhalidwe:Amayezera kuchuluka kwa lmtengo wake; oyenera zigawo zovuta structural.
4. Kayendedwe ka Ntchito (Kugwiritsa Ntchito Njira Yonunkhiza Monga Chitsanzo)
4.1 Gawo Lokonzekera:
Kuyeretsa kwa workpiece, kuwongolera zida, ndikutsimikizira maziko a helium zachilengedwe.
4.2 Kukwaniritsa Kuzindikira:
Chogwirira ntchito chimalumikizidwa ndi dongosolo lodziwikiratu lotayikira ndipo chimasamutsidwa ku mphamvu yogwirira ntchito.
Kupopera kwa Helium kumayamba pamene kupanikizika kwa dongosolo kumafika ≤0.1 Pa (kupopera mfuti mtunda: 1-2 cm, kuthamanga: 0.1-0.2 MPa).
Kusanthula mwadongosolo motsatira msoko wowotcherera, molunjika kumadera omwe ali ndi kupsinjika kwa kutentha.
4.3 Kusanthula Zambiri:
Alamu imayambitsidwa ngati chiwongolero cha kudontha chidutsa malire (monga 1×10⁻⁹ Pa·m³/s).
Malo otsikira amalembedwa, ndipo zozindikirika ndi data zimajambulidwa.
4.4 Kuyang'ananso ndi Kupereka Lipoti:
Kuyesedwanso pambuyo pa kukonzanso, ndikutsatiridwa ndi kupanga lipoti lathunthu la mayeso.
5. Zolinga Zapadera ndi Miyezo
Kusintha Kwa Ceramic-Specific: Yang'anani kwambiri pakuzindikira madera ang'onoang'ono omwe amayamba chifukwa cha kusagwirizana kwakukula kwa kutentha.
Sensitivity Grading: Kusankhidwa kutengera gawo la ntchito; Zofunikira pazamlengalenga zitha kufika pamiyezo yolimba ngati 10⁻¹² Pa·m³/s.
Kutsatira Kwanthawizonse: Kutsatira miyezo yadziko/zankhondo, ASTM, kapena zotsatiridwa ndi makampani.
Kulephera Kusanthula: Kusanthula kwa Microstructural, monga gawo la metallographic ndi scanning electron microscopy (SEM), kuti mupeze malo otayira kuposa miyezo.
Wintrustek idzayesa kuyesa kwa helium kwa ceramic iliyonse kupita kuzitsulo. Chonde onani ulalo womwe uli pansipa kuti muwonetsetse kuyesa kwathu kutayikira:
https://youtu.be/Et3cTV9yD_U?si=Yl8l7eBH5rON7I_f
IV. Zochitika Zofananira za Ntchito
Power Electronics Packaging: Kulumikizana pakati pa magawo a ceramic (AlN/Al₂O₃) ndi zigawo zamkuwa m'ma module a IGBT.
Zigawo za Vacuum System: Zisindikizo za Ceramic-to-Metal mu particle accelerators ndi zida za semiconductor.
Azamlengalenga: Masensa a injini ndi mazenera osindikizira ndege.
Mphamvu ndi Optoelectronics: Ma cell amafuta amalumikizana ndi ma CD amphamvu kwambiri a laser.
V. Mwachidule
Active metal brazing ndiye njira yoyambira yopangira zodalirikaceramic-to-zitsuloKuphatikizikako, komwe kumakhala ndi helium mass spectrometer kuzindikira kutayikira komwe kumakhala ngati mulingo wagolide wotsimikizira kukhazikika kwawo. Kuphatikiza kwa matekinoloje awiriwa kumatsimikizira kudalirika kwa nthawi yayitali kwa zigawo zowotcherera pazovuta. M'mapulogalamu enieni, ndikofunikira kukhathamiritsa magawo a brazing ndikusankha njira zoyenera zodziwira kutayikira ndi milingo yokhudzika kutengera kapangidwe ka workpiece, mawonekedwe azinthu, ndi zosowa zamagwiritsidwe. Njirayi imapanga dongosolo lotsekeka loyang'anira khalidwe lomwe limayambira pakupanga mpaka kutsimikizira.
