(1) Hunhu hwesimbi dzesimbi dzinosanganisa aruminiyamu matrix composites dzinosanganisira kusimbisa zvidimbu (kusanganisira whisker) uye kusimbisa fiber. Zvinhu zvinoshandiswa pakusimbisa zvinosanganisira B, CB, SiC, nezvimwewo.
Kana zvinhu zvakagadzirwa nealuminium matrix zvakaputirwa uye zvakapiswa, matrix Al iri nyore kuita nechikamu chekusimbisa, zvakaita sekupararira nekukurumidza kweSi musimbi yekuzadza kuenda kusimbi yepasi uye kuumbwa kwebrittle dumping layer. Nekuda kwemusiyano mukuru mu linear expansion coefficient pakati peAl nechikamu chekusimbisa, kupisa kusina kunaka kwebrazing kunokonzera kushushikana kwekupisa panzvimbo inopindirana, izvo zviri nyore kukonzera kutsemuka kwemajoini. Pamusoro pezvo, kunyorova pakati pesimbi yekuzadza nechikamu chekusimbisa kwakashata, saka nzvimbo yekusimbisa yecomposite inofanira kugadziriswa kana kuti simbi yekuzadza inofanira kushandiswa, uye vacuum brazing inofanira kushandiswa zvakanyanya sezvinobvira.
(2) Zvinhu zveBrazing uye process B kana SiC particle reinforced aluminum matrix composites zvinogona kubhurwa, uye kugadziriswa kwepamusoro usati wabatanidza kunogona kuitwa nekukuya sandpaper, kuchenesa wire brush, kushambidza alkali kana electroless nickel plating (ukobvu hwekufukidza 0.05mm). Simbi yekuzadza ndeye s-cd95ag, s-zn95al uye s-cd83zn, iyo inodziiswa ne soft oxyacetylene flame. Pamusoro pezvo, simba rakawanda rekubatana rinogona kuwanikwa nekukwesha brazing ne s-zn95al solder.
Kuisa simbi mu "vacuum brazing" kunogona kushandiswa kubatanidza ma "composites" e "Short Fiber Reinforced 6061 aluminum matrix". Simba re "brazing" risati rasvika, pamusoro paro panofanira kukuyiwa nepepa re "abrasive" 800 mushure mekukuya, uye rozoiswa muchoto mushure mekucheneswa ne "ultrasonic" ne "acetone". simbi ye "Al Si brazing filler" inonyanya kushandiswa. Kuti Si isapararire musimbi ye "base", jira re "pure aluminium foil barrier layer" rinogona kuputirwa pamusoro pe "brazing" yezvinhu zvakasanganiswa, kana kuti b-al64simgbi (11.65i-15mg-0.5bi) simbi ye "brazing filler" ine simba rakaderera re "brazing" inogona kusarudzwa. Tembiricha yekunyunguduka kwesimbi ye "brazing filler" i554 ~ 572 ℃, tembiricha ye "brazing" inogona kuva 580 ~ 590 ℃, nguva ye "brazing" i5min, uye simba re "shear" re "join" rinodarika 80mpa.
Pakugadzira graphite particle reinforced aluminum matrix composites, kushandisa brazing mu protective atmosphere furnace ndiyo nzira inonyanya kubudirira pari zvino. Kuti mvura inyatsonyorova, Al Si solder ine Mg inofanira kushandiswa.
Sezvinoita nealuminium vacuum brazing, kunyorova kwealuminium matrix composites kunogona kuvandudzwa zvakanyanya nekuisa mg vapor kana Ti suction uye kuwedzera huwandu hwakati hweMg.
Nguva yekutumira: Chikumi-13-2022