Phosa iAluminiyam-Silicon ingxubevange yeRadiator/ UTshintshiselwano lweBhoyila yeGesi yeNdalo
Material Intshayelelo
I-alloy ye-aluminium ephezulu ye-silicon yi-alloy yokubini eyenziwe nge-silicon kunye ne-aluminium, kwaye iyimathiriyeli yokulawula i-thermal esekwe kwintsimbi. I-silicon ephezulu ye-aluminium alloy material inokugcina iimpawu ezintle ze-silicon kunye ne-aluminium, ayingcolisi indalo, kwaye ayinabungozi kumzimba womntu. Ubuninzi be-silicon ye-aluminium alloy ephezulu iphakathi kwe-2.4 ~ 2.7 g/cm³, kunye ne-coefficient yokwanda kwe-thermal (CTE) phakathi kwe-7-20ppm/℃. Ukwandisa umxholo we-silicon kunokunciphisa kakhulu ubuninzi kunye nokwandiswa kwe-thermal coefficient ye-alloy material. Kwangaxeshanye, i-alloy ye-aluminium ephezulu ye-silicon inokuqhuba kakuhle kwe-thermal, ukuqina okuphezulu kunye nobungqongqo, ukusebenza kakuhle kwe-plating ngegolide, isilivere, ubhedu, kunye ne-nickel, i-weldable kunye ne-substrate, kunye nokwenza lula ukuchaneka. Yimathiriyeli yokupakishwa ye-elektroniki enethemba elibanzi losetyenziso.
Iindlela zokwenziwa kwe-high-silicon aluminium alloy alloy composite materials ikakhulu ziquka oku kulandelayo: 1) ukunyibilika nokuphosa; 2) indlela yokungena; 3) umgubo wesinyithi; 4) vacuum indlela yokucinezela eshushu; 5) Ukupholisa ngokukhawuleza / ukutshiza indlela yokubeka.
Inkqubo yeMveliso
1) Indlela yokunyibilika kunye nokuphosa
Izixhobo zokunyibilikisa kunye nendlela yokuphosa ilula, indleko ephantsi, kwaye inokuqonda imveliso yemizi-mveliso emikhulu, kwaye yeyona ndlela ibanzi yokulungiselela izixhobo zealloy.
2) Indlela yokukhulelwa
Indlela yokufakelwa iquka iindlela ezimbini: indlela yokungena ngoxinzelelo kunye nendlela yokungena ngoxinzelelo. Indlela yokungena ngoxinzelelo isebenzisa uxinzelelo lomatshini okanye uxinzelelo lwegesi olucinezelekileyo ukwenza isiseko sesinyithi sinyibilike sintywilisele kwisithuba sokuqinisa.
3) I-metallurgy ye powder
I-metallurgy yomgubo kukusasaza inxalenye ethile yomgubo we-aluminium, umgubo wesilicone kunye ne-binder ngokufanayo, ukuxuba kunye nokubumba umgubo ngokucofa okomileyo, inaliti kunye nezinye iindlela, kwaye ekugqibeleni sinter kwi-atmosphere ekhuselayo ukuze wenze imathiriyeli exineneyo.
4) Vacuum indlela yokucinezela eshushu
Indlela yokucoca i-vacuum eshushu ibhekiselele kwinkqubo yokucoca apho ukwakhiwa koxinzelelo kunye noxinzelelo lwe-sintering lwenziwa ngaxeshanye. Iingenelo zayo zezi: ①Umgubo kulula ukuhamba ngeplastiki kwaye uxinanise; ②Ubushushu be-sintering kunye nexesha le-sintering lifutshane; ③Uxinaniso luphezulu. Inkqubo eqhelekileyo kukuba: phantsi kweemeko ze-vacuum, i-powder ifakwe kwi-mold cavity, i-powder ifudumala ngelixa icinezelwa, kwaye i-compact kunye ne-uniform material yenziwa emva kwexesha elifutshane loxinzelelo.
5) Ukupholisa okukhawulezayo/ ukutshiza
Ukupholisa ngokukhawuleza / ukutshiza itekhnoloji yetekhnoloji yokuqinisa ngokukhawuleza. Inezi nzuzo zilandelayo: 1) akukho macro-segregation; 2) i-fine and uniform equiaxed crystal microstructure; 3) isigaba sokuqala semvula; 4) umxholo ophantsi we-oksijeni; 5) ukuphucula ukusebenza kwe-thermal processing.
Ukuhlelwa
(1) I-Hypoeutectic silicon aluminium alloy iqulethe i-9% -12% ye-silicon.
(2) I-Eutectic silicon i-aluminium alloy iqulethe i-11% ukuya kwi-13% ye-silicon.
(3) Umxholo we-silicon ye-hypereutectic aluminium alloy ingaphezulu kwe-12%, ngokukodwa kwi-15% ukuya kwi-20%.
(4) Abo banomxholo we-silicon ye-22% okanye ngaphezulu babizwa ngokuba yi-high-silicon aluminium alloys, apho i-25% -70% iyona nto iphambili, kwaye umxholo ophezulu we-silicon emhlabeni unokufikelela kwi-80%.
Isicelo
I-1) Ukupakishwa kwesekethe edibeneyo yamandla aphezulu: i-alloy ye-aluminium ephezulu ye-silicon inika ukutshatyalaliswa kokushisa okusebenzayo;
I-2) Umthwali: Ingasetyenziselwa njengendawo yokutshisa ukushisa kwendawo ukwenza amacandelo alungelelaniswe ngokusondeleyo;
I-3) Isakhelo se-Optical: i-silicon ephezulu ye-aluminium alloy inikeza i-coefficient ephantsi yokwandisa i-thermal, ukuqina okuphezulu kunye nokusebenza;
I-4) I-Heat sink: I-silicon ephezulu ye-aluminium alloy inikeza ukutshatyalaliswa kobushushu obusebenzayo kunye nenkxaso yesakhiwo.
I-5) Amalungu e-Auto: I-silicon ephezulu ye-aluminium alloy material (umxholo we-silicon 20% -35%) uneempawu ezibalaseleyo ze-tribological, kwaye zinokusetyenziswa njengezinto ezinqabileyo ezinqabileyo zokunxiba ukuze zisetyenziswe kwizixhobo ezahlukeneyo zothutho, oomatshini bamandla ahlukeneyo kunye noomatshini. izixhobo. , Izibophelelo ezikhethekileyo kunye nezixhobo zisetyenziswe ngokubanzi.
I-alloy ye-aluminium ephezulu ye-silicon inoluhlu lwezinto eziluncedo ezifana nomxhuzulane ocacileyo omncinci, ubunzima bokukhanya, ukuqhutyelwa kakuhle kwe-thermal, i-coefficient ephantsi yokwandisa i-thermal, ukuzinza kwevolumu, ukuxhathisa kakuhle ukunxiba, kunye nokuxhathisa okulungileyo kwe-corrosion, kwaye isetyenziswa ngokubanzi njenge-cylinder liners, pistons, kunye neerotha zeenjini zeemoto. , Iidiski zeBrake kunye nezinye izinto.
