(ICeramic ukuya kwiMetal Assmebled PartIveliswe nguWintrustek)

I. Isishwankathelo seCeramic-to-Metal Welded Components

Amacandelo e-Ceramic-to-metal weldedzizinto eziluncedo zesakhiwo ezisebenzisa iinkqubo zokuwelda ezintsonkothileyo ukunika amandla aphezulu, ukuxinana kwegesi ephezulu, kunye noqhagamshelo oluthembekileyo lombane / lobushushu phakathi kweceramic kunye nemathiriyeli yentsimbi. Ngokuqhelekileyo zisetyenziswa kwizicelo ezifuna ukuxhathisa kubushushu obuphezulu, uxinzelelo, okanye iimeko zevacuum.

II. Itekhnoloji ye-Metal Brazing esebenzayo

1. Imigaqo yoBugcisa ePhambili

Ukubrawuza kwesinyithi okusebenzayo kusebenzisa izinto ezisebenzayo (i-titanium, i-zirconium, i-hafnium, i-vanadium, njl.njl.) kwi-brazing filler ukuze isabele ngokwekhemikhali ngeeseramikhi, okukhokelela kumaleko adityaniswe ngamachiza kujongano lwe-ceramic-metal. Ezi zinto zisebenzayo zinomtsalane omkhulu weoksijini, initrogen, kunye nekhabhoni. Ukufudumeza kwi-vacuum okanye umoya ongasebenziyo kudala i-nanoscale reaction layers (umzekelo, i-TiO₂, i-TiN, i-TiC) kwimigangatho ye-ceramic. Oku kuvumela ukufunxwa yintsimbi etyhidiweyo yokuzalisa, okukhokelela ekuthembekeni "kwe-ceramic-reaction layer-braze joint-metal" bond.

2. IiParameters zeNkqubo ePhambili

2.1 Inkqubo yeMetal Filler yeBrazing:

• I-Ag-Cu-Ti: Umgangatho woshishino, ukusebenza kakuhle okubanzi

• Cu-Ti: Ixabiso eliphantsi, ukumelana nobushushu obuphezulu

• I-Au-Ni-Ti: Ukuthembeka okuphezulu, izicelo ze-aerospace

• ISilver-Free Solder: Yezixhobo zombane ezifuna uthintelo lokufuduka kwesilivere

2.2 Ulawulo Lwenkqubo:

• IiMfuno zokusiNgqongileyo: Isifunxa esiphakamileyo (

• Ulawulo lobushushu: 20–50°C ngaphezu kwe-solder liquidus (800–900°C yenkqubo ye-Ag-Cu-Ti)

• Ulawulo lwexesha: Imizuzu emininzi ukuya kwimizuzu engamashumi amabini, ukulinganisa ukugqibelela kokusabela kunye nobubanzi bomaleko wojongano

2.3 Inkqubo:

• Unyango lwangaphambili: Ukucocwa ngokuchanekileyo kweekeramics kunye nonyango lwe-metallization; ukususwa kweengqimba ze-oxide kumacandelo esinyithi

• INdibano: Ukudityaniswa ngokuchanekileyo kweeseramics, iikhomponenti zetsimbi, kunye nefoyile yesoda esebenzayo (0.05-0.2 mm)

• Vacuum Brazing: Ukuphuma → Ukufudumala okucwangcisiweyo → Ukubamba ubushushu → Ukupholisa okulawulwayo

• Emva konyango: Ukucoca kunye nokuhlolwa kwangaphambili

III. I-Helium Mass Spectrometer yokuBonelwa kweTekhnoloji yokuLeak

1. Imfuneko yokuFumana indawo evuzayo

Amacandelo e-Ceramic-metal welded asetyenziswa kwizicelo ezifunwa kakhulu ezifana ne-vacuum systems kunye nezixhobo ze-aerospace. Qinisekisa ukuba zizalisekisa kufutshane-"utywino olupheleleyo" inqobo (amaxabiso okuvuza

2. Umgaqo-siseko wokuFumana

Ukusebenzisa i-helium njenge-tracer gas, le ndlela ithatha ithuba lobungakanani bayo obuncinci bemolekyuli, indalo engasebenziyo, kunye nokugxilwa kwemvelaphi ephantsi. I-Helium ingena kwi-mass spectrometer ngokuvuza, i-ionized, yahlulwe yimagnethi, kwaye ifunyenwe ngumtshina okhethekileyo. Amandla omqondiso alingana nomxholo we-helium, evumela ukubalwa kweqondo lokuvuza ngokuthe ngqo.

3. IiNdlela zokuFumana eziphambili

Indlela yoku-1: Indlela yokusezela (Ukubona indawo evuzayo)

Inkqubo:

• Ingaphakathi le-workpiece liyakhutshwa kwaye liqhagamshelwe kwisixhobo sokuvuza.

• Indawo ye-weld yangaphandle iskenwa nge-helium spray gun.

• Iimpawu zibekwe esweni ngexesha lokwenyani ukuze kufumaneke ngokuchanekileyo iindawo ezivuzayo.

Iimpawu:Ifanelekile ukukhangela ukuvuza kumalungu amancinci, uvakalelo oluphezulu.

Indlela yesi-2:IHelium Hood/iNdlela yokuValela (uVavanyo lweMfezeko yeTywina lilonke)

Inkqubo:

• I-workpiece igcwele i-helium kwaye ifakwe ngaphakathi kwe-vacuum hood, okanye i-hood yangaphandle / i-sniffer isetyenziselwa ukukhangela.

• I-helium eqokelelweyo okanye ebalekayo ifunyenwe.

Iimpawu:Ilinganisa itotali ye-lireyithi yeeka ilungele amacandelo ezakhiwo ezintsonkothileyo.

4. Ukuhamba komsebenzi okuSebenzayo (Ukusebenzisa iNdlela yokuSezela njengoMzekelo)

4.1 Isigaba sokuLungiselela:

Ukucoca i-workpiece, ukulinganisa izixhobo, kunye nokuqinisekiswa kwemvelaphi ye-helium yokusingqongileyo.

4.2 Ukuphunyezwa kokuFumana:

• I-workpiece iqhagamshelwe kwinkqubo yokukhangela ukuvuza kwaye ikhutshwe kuxinzelelo lokusebenza.

• I-Helium yokutshiza iqala xa uxinzelelo lwenkqubo lufikelela ku-≤0.1 Pa (umgama wompu wokutshiza: 1-2 cm, uxinzelelo: 0.1-0.2 MPa).

• Ukuskena okucwangcisiweyo ecaleni kwe-weld seam, kugxilwe kwiindawo zoxinzelelo lwe-thermal.

4.3 Uhlalutyo lwedatha:

• I-alam iyaqaliswa ukuba izinga lokuvuza lingaphezulu komda (umzekelo, 1×10⁻⁹ Pa·m³/s).

• Amanqaku okuvuza aphawulwe, kwaye iimeko zokubona kunye neenkcukacha zirekhodwa.

4.4 Ukuhlolwa kwakhona kunye nokunika iNgxelo:

Ukuvavanya kwakhona emva kokulungiswa, kulandelwa kukuveliswa kwengxelo epheleleyo yovavanyo.

5. Iingqwalasela eziKhethekileyo kunye neMigangatho

• I-Ceramic-Specific Adaptation: Gxininisa ekufumaneni imimandla ye-microcrack ebangelwa ukungahambisani nokwandiswa kwe-thermal.

• UHlelo lokuSensitivity: Kukhethwe ngokusekwe kwibala lesicelo; iimfuno zomgangatho we-aerospace zinokufikelela kumanqanaba angqongqo njenge-10⁻¹² Pa·m³/s.

• Ukuthotyelwa okuMgangatho: Ukuthotyelwa kwemigangatho yesizwe/yomkhosi, i-ASTM, okanye iinkcukacha ezithe ngqo kwishishini.

• Uhlalutyo lokungaphumeleli: Uhlalutyo lwe-Microstructural, olufana ne-metallographic sectioning kunye ne-scan electron microscopy (SEM), kumanqaku avuzayo adlula imigangatho.

I-Wintrustek iya kuqhuba uvavanyo lokuvuza kwe-helium kuyo yonke i-ceramic ukuya kwiindawo zetsimbi. Nceda ujonge ikhonkco elingezantsi lokubhekisa kuvavanyo lwethu lokuvuza:

https://youtu.be/Et3cTV9yD_U?si=Yl8l7eBH5rON7I_f

IV. Iimeko zosetyenziso oluqhelekileyo

• I-Power Electronics Packaging: Uxhulumaniso phakathi kwe-ceramic substrates (AlN / Al₂O₃) kunye neengqimba zethusi kwiimodyuli ze-IGBT.

• Izixhobo zeNkqubo yeVacuum: Iimpawu zeCeramic-to-metal kwi-particle accelerators kunye nezixhobo ze-semiconductor.

• I-Aerospace: Izinzwa ze-injini kunye neefestile zokutywinwa kweziphekepheke.

• Amandla kunye ne-Optoelectronics: I-Fuel cell interconnects kunye ne-laser-power packaging ephezulu.

V. Isishwankathelo

Ukunyanyiswa kwentsimbi esebenzayo yindlela esisiseko yokuvelisa ukuxhomekekaceramic-to-metaliindawo ezidityanisiweyo, kunye ne-helium mass spectrometer ukufunyaniswa kokuvuza okusebenzayo njengomgangatho wegolide wokuqinisekisa ubume bazo. Indibaniselwano yezi teknoloji zimbini iqinisekisa ukuthembeka kwexesha elide lamacandelo adibeneyo kwiimeko ezinzima. Kwizicelo ezizizo, kubalulekile ukukhulisa iiparamitha zenkqubo yokubrawuza kwaye ukhethe iindlela ezifanelekileyo zokubona ukuvuza kunye namanqanaba obuntununtunu ngokuxhomekeke kubume bomsebenzi, iimpawu zemathiriyeli, kunye neemfuno zesicelo. Le ndlela iphuhlisa inkqubo yolawulo lwekhwalithi evaliweyo eqala ukusuka kwimveliso ukuya ekuqinisekiseni.