Sengoloa se le seng ho utloisisa theknoloji ea vacuum brazing le ts'ebeliso

1. Selelekela

 Ho tloha ka bo-1940, theknoloji ea vacuum brazing e fetohile theknoloji e tšepisang haholo ea ho cheselletsa. Likarolo tsa koporo le tšepe tse sa hloekang li ile tsa qala ho hlaha indastering ea elektronike. Hamorao, ka tsoelo-pele e potlakileng ea indasteri ea lifofane, indasteri ea lisebelisoa tsa elektronike, indasteri ea likoloi, indasteri ea jenereithara ea oksijene le theknoloji ea rocket le missile, theknoloji ea vacuum brazing le eona e ntlafalitsoe ka tsela e nepahetseng. Theknoloji ea vacuum brazing e sebelisoa haholo ha ho etsoa liphanele tsa sebopeho sa khekhe ea linotši, likopano tsa lienjineri tsa jete le lisebelisoa tsa metsu ea rokete, li-filters tsa tšepe, li-waveguide le li-radiator tse fapaneng.

2. Vacuum brazing ke eng

Vacuum brazing e bua ka mokhoa oa ts'ebetso oa ho tiisa ka ho sebelisa tšepe ea welding brazing filler ntle le ho phalla sebakeng se phahameng sa vacuum.

sebetsa molao-motheo:

The brazing filler metal is coated on the surface of the parts to be vacuum brazed, and then put into the vacuum brazing sebōpi. The vacuum system starts to work and the air is pumped out. When the vacuum degree reaches 10-3Pa vacuum state, the heating starts, and the heating reaches 10-3Pa. At the brazing temperature required by the process, the brazing filler metal begins to melt, and the liquid brazing filler metal wets the base metal and fills the gap between the drill bits under capillary action. At the same time, the solder elements diffuse to the base metal, and the base metal dissolves in the liquid solder to form a high-quality brazing joint.

3. Melemo ea vacuum brazing

• Ts'ebetsong ea "vacuum brazing", "workpiece" ea "brazed" e tlas'a maemo a vacuum, 'me ho ke ke ha e-ba le oxidation, keketseho ea carbon, decarburization le ho senyeha ha tšilafalo. Bohloeki ba lenonyello le cheselitsoeng bo botle 'me matla a phahame.

• Ha ho chesa, mocheso oa mocheso o tlaase ho feta ntlha ea ho qhibiliha ea tšepe ea motheo, e nang le phello e fokolang holim'a thepa ea motheo, karolo eohle e futhumetse ka mokhoa o ts'oanang, 'me khatello ea mocheso e nyenyane,' me deformation e ka laoloa ho ea bonyane. e loketseng haholo bakeng sa brazing ea lihlahisoa tse nepahetseng.

• Khatello e tlaase (vacuum) e potolohileng tšepe ea motheo le tšepe ea ho tlatsa tšepe e ka felisa likhase tse sa tsitsang le litšila tse hlahisoang ke tšepe mocheso oa mocheso, 'me li ka ntlafatsa ts'ebetso ea tšepe ea motheo.

• Mokhoa oa moralo oa lihlahisoa o atolositsoe, 'me likarolo tse ka hare li lumelloa ho ba le li-grooves tse moqotetsane, litafole tse nyenyane haholo tsa phetoho, masoba a foufetseng, joalo-joalo E loketse ka ho khetheha bakeng sa likarolo tse nang le lijana tse koetsoeng le libopeho tse rarahaneng, hape li ka kenngoa ka brazed ka litsela tse ngata. ka nako. E na le ts'ebetso e phahameng ea brazing 'me ha ho hlokahale hore e nahane ka mathata a ho senya, ho hloekisa le ho senya ho bakoang ke ho phalla, joalo-joalo.

• Ts'ebetso ea ho futhumatsa mocheso oa workpiece e ka phethoa ka nako e le 'ngoe nakong ea ts'ebetso ea ho roala, ho ka khethoa mekhoa e loketseng ea ho cheselletsa,' me ho qhoqhoa ho ka hlophisoa e le mokhoa oa ho qetela oa ho fumana motsoako oa brazed oo ts'ebetso ea oona e finyellang litlhoko tsa moralo.

• Ho na le mefuta e mengata ea litšepe tse ka behoang ka brazed, haholo-holo tse loketseng li-alloys tsa aluminium le aluminium, li-alloys tsa titanium le titanium, tšepe e sa hloekang, li-alloys tse phahameng tsa mocheso, joalo-joalo; hape e loketse likhokahano tsa brazing tsa titanium, zirconium, niobium, molybdenum, tungsten le litšepe tse ling tse tšoanang kapa tse sa tšoaneng; E boetse e loketse lisebelisoa tse kopantsoeng, li-ceramics, graphite, khalase, daemane le lisebelisoa tse ling.

4.Tšebeliso e ka sehloohong ea theknoloji ea vacuum brazing

• Enjene ea Aero

Vacuum brazing e sebelisoa haholo meahong ea khekhe ea linotsi e le likarolo tsa tiiso ea mefuta e fapaneng ea lienjine tsa moea. Ts'ebetso ea brazing ea sebopeho sa khekhe ea linotši ke ho hlophisa lisebelisoa tsa ho roala mokokotlong oa khekhe ea linotsi, ebe o bokella khekhe ea linotši le khetla, 'me qetellong o amohele mokhoa oa ho penya oa vacuum Bakeng sa brazing, matla a motsoako oa brazed ke hoo e ka bang 50% ea thepa ea motheo. Li-stator blades tsa li-compressor tsa aero-engine li boetse li etsoa ka mokhoa ona oa brazing. E na le mehele ea ka hare le ea ka ntle le li-blades tse fetang 10 tse kopantsoeng ke vacuum brazing. ka kakaretso.

Ntle le moo, vacuum brazing e boetse e sebelisoa ha ho etsoa litataiso tsa turbine, li-vane tsa tataiso, li-diffuser, li-tubes tsa malakabe, li-filters tsa oli le likarolo tse ling tsa lienjineri tsa moea.

• AMB ceramic substrate

Ts'ebetso ea AMB (chelete ea tšepe e sebetsang) ke nts'etsopele e 'ngoe ea theknoloji ea ts'ebetso ea DBC. E sebelisa palo e nyane ea lintho tse sebetsang tsa Ti le Zr tse ka har'a tšepe ea brazing ho sebetsana le ceramic ho etsa lera la karabelo le ka kolobisitsoeng ke tšepe ea mokelikeli oa brazing. Mokhoa oa ho kopanya. Ha e na feela hore e na le conductivity e phahameng ea mocheso le bonding e ntle ea koporo ea lera, empa hape e na le melemo ea ho hanyetsa mocheso o monyenyane le ho tšepahala ho phahameng. E loketse haholoanyane bakeng sa ho lokisoa ha li-copper-clad substrates bakeng sa liphutheloana tsa module tsa IGBT ka likoloi tsa motlakase le li-locomotives tsa matla. Haholo-holo mafapheng a bohlokoa a kang matla a moea, matla a letsatsi, lipompo tsa mocheso, motlakase oa metsi, matla a biomass, mehaho e tala, lisebelisoa tse ncha tsa matla, likoloi tsa motlakase, lipalangoang tsa terene, joalo-joalo, tsoelo-pele e potlakileng ea theknoloji ea motlakase ea motlakase e tla ba le tšusumetso e kholo ho ceramic. Copper clad laminates, thepa ea bohlokoa bakeng sa liphutheloana tsa module oa IGBT. tlhokeho.

• Lisebelisoa tsa daemane

Lisebelisoa tsa daemane tsa brazed li arotsoe ka mefuta e 'meli: inlay ea holimo le ho kenya letsoho. Sesebelisoa sa inlay se ka holimo ke ho khabisa daemane ka ho toba holim'a substrate. Sesebelisoa se kentsoeng ke ts'ebetso ea sintering ea sintering taemane le lisebelisoa tse ling ka har'a 'mele o kopaneng oa litaemane. Ts'ebetso ea ho kopanya brazing e nang le lisebelisoa tsa motheo. Ho roala ha lisebelisoa tsa daemane ho arotsoe ka mekhahlelo e meraro: lisebelisoa tsa daemane tsa lera le le leng, li-diamond bit brazing le PDC composite brazing, tse 'nileng tsa sebelisoa haholo liindastering tse ngata tse kang lisebelisoa tsa majoe, lisebelisoa tsa mapolanka, lifofane le liindasteri tsa sesole.

• Likoloi le liketsoana

Li-coolers tsa "vacuum brazed plate-fin" li sebelisoa likoloing le liketsoaneng. Pholi ea oli ea Plate-fin e na le litšobotsi tsa ts'ebetso e phahameng ea phetisetso ea mocheso, sebopeho se kopaneng le boima bo bobebe. Ke sehlahisoa se nkelang sebaka sa li-coolers tsa kajeno tsa diesel 'me esale se sebelisoa haholo likoloing, literekere, lienjineng tsa diesel tsa metsing le masimong a mang.

• Thepa ea ho arola moea

Tšebeliso ea theknoloji ea vacuum brazing bakeng sa lisebelisoa tsa karohano ea moea e ntlafatsa haholo ho nepahala ha tlhahiso ea mochine o nang le likanale tse moqotetsane tse phallang, kahoo e seng feela ho netefatsa litsupa tsa ts'ebetso ea moralo, empa hape ho fokotsa litšenyehelo tsa tlhahiso le ho khutsufatsa potoloho ea tlhahiso.

5. Ts'ebetso ea ACME vacuum brazing le lisebelisoa

Kamora lilemo tse mashome tsa nts'etsopele, ACME e nka boemo ba bohlokoa lefapheng la ho cheselletsa vacuum China esita le lefats'eng. E thehile letoto la lihlahisoa tse peli tsa vacuum brazing le vacuum diffusion welding. Hajoale, lisebelisoa tse ka bang 200 tsa vacuum brazing li sebetsa libakeng tsa bareki. Lisebelisoa li kenyelletsa vacuum brazing ea tšepe e se nang tšepe, tšepe e sa hloekang, lialloi tsa aluminium, li-alloys tsa titanium, li-superalloys, li-alloys tse thata, joalo-joalo, hammoho le vacuum brazing pakeng tsa lisebelisoa tsa tšepe le lisebelisoa tse seng tsa tšepe, joalo ka vacuum brazing ea koporo le ceramics Ema. .

• Nyeoe ea kopo ea lisebelisoa tsa ACME vacuum brazing

Senepe sa sebaka sa ts'ebeliso sa khoebo e tšehelitsoeng ka lichelete ke Majapane, mohala oa tlhahiso ea othomathike oa AMB ceramic substrate AGV o nka lisebelisoa tsa ACME 12 tse otlolohileng tsa vacuum ka li-batches. Sete e felletseng ea lisebelisoa ke mohala o bohlale oa tlhahiso o sa sebetsoeng, o koahelang sistimi ea taolo e bohlale ea MES.

Senepe sa sebaka sa ts'ebeliso ea enjine ea moea, lisebelisoa tse otlolohileng tsa vacuum brazing, tse sebelisetsoang ho koala mehele ea tiiso ea khekhe ea linotsi, litataiso tsa turbine, li-vane tsa tataiso, li-diffuser, li-tubes tsa malakabe, li-filters tsa oli le likarolo tse ling.

• Melemo ea tekheniki ea lisebelisoa tsa ACME vacuum brazing

• ACME e na le mangolo a profeshenale a laboratori e khethehileng ea ts'ireletso ea naha. Sebakeng sa vacuum brazing le diffusion welding, ts'ebetso le lisebelisoa li maemong a etelletseng pele lapeng le kantle ho naha, haholo-holo ho kopanya ts'ebetso le lisebelisoa ho etsa hore lisebelisoa tsa rona tsa vacuum li sebetse haholoanyane.

  

• Lebanta la ho futhumatsa le amohela theknoloji ea morao-rao (ACME patent), e seng feela e eketsang sebaka sa mahlaseli, empa hape e fokotsa tšilafalo ea thepa e sireletsang ka mouoane oa tšepe oa solder;

• Mohaho oa tsamaiso ea vacuum o na le mochine o fetolang khase ea khase le sesebelisoa sa ho hloekisa le ho bokella ho thibela tšilafalo ea pompo ea vacuum e behiloeng ke mouoane oa khase ea flux le brazing, haholo-holo palo e kholo ea litšila tsa lipid e tla hlahisoa. nakong ea ts'ebetso ea brazing ea substrate ea ceramic ea AMB. Ho fihla ho 98%, ho etsa bonnete ba hore sebaka sa mocheso oa vacuum se hloekile ebile ha se na tšilafalo;

• Theknoloji e ikhethang e khahlanong le tšilafalo ea taolo ea vacuum e netefatsa bophelo bo bolelele ba tšebeletso ea taolo ea vacuum;

• Kamore ea ho futhumatsa ea skrine ea tšepe e amohela lebanta la mocheso oa mocheso oa molybdenum-lanthanum alloy, 'me lebanta la ho futhumatsa le fanoa ka likhopo, tse nang le sebaka se seholo sa mahlaseli' me ha se senyehe ka mor'a tšebeliso ea nako e telele;

• Sebōpi sa sebōpi se ntlafatsoa ke moralo oa modular, 'me ho tšoana ha mocheso oa sebōpi ho molemo;

• E na le sistimi e futhumatsang ea Ar gas e hatelitsoeng ka potlako ho netefatsa phello ea pholiso le ts'ebetso e nepahetseng.