Brazing ya Aluminium Matrix Ibigize

.Ibikoresho bikoreshwa mugushimangira harimo B, CB, SiC, nibindi

Iyo materix ya aluminiyumu yashizwemo kandi igashyuha, matrix Al iroroshye kubyitwaramo hamwe nicyiciro gishimangira, nko gukwirakwizwa byihuse kwa Si mubyuma byuzuza ibyuma fatizo no gushiraho ibice byajugunywe.Kubera itandukaniro rinini muburyo bwo kwagura umurongo hagati ya Al nicyiciro cyo gushimangira, gushyushya bidakwiye bizatera impagarara zumuriro kuri interineti, byoroshye gutera gucikamo ibice.Byongeye kandi, ubushuhe buri hagati yicyuma cyuzuza nicyiciro cyo gushimangira ni bubi, bityo rero hejuru yubuso bwa compte igomba kuvurwa cyangwa gukora ibyuma byuzuza bigomba gukoreshwa, kandi gushakisha vacuum bigomba gukoreshwa uko bishoboka kose.

.Icyuma cyuzuza ni s-cd95ag, s-zn95al na s-cd83zn, zishyutswe numuriro woroshye wa oxyacetylene.Mubyongeyeho, imbaraga nyinshi zihuriweho zishobora kuboneka mugukata brazing hamwe na s-zn95al ugurisha.

Vacuum brazing irashobora gukoreshwa muguhuza Fibre ngufi Yongerewe imbaraga 6061 ya aluminium matrix.Mbere yo gusya, hejuru igomba kuba hasi hamwe nimpapuro 800 zangiza nyuma yo gusya, hanyuma zigashyirwa mu ziko nyuma yo koza ultrasonic muri acetone.Al Si brazing yuzuza ibyuma ikoreshwa cyane.Mu rwego rwo gukumira ikwirakwizwa rya Si mu cyuma fatizo, urwego rwumubyimba wa aluminium foil barrière rushobora gutwikirwa hejuru yubutaka bwibikoresho, cyangwa b-al64simgbi (11.65i-15mg-0.5bi) icyuma cyuzuza hamwe na imbaraga zo hasi zo gushakisha zirashobora gutoranywa.Ubushyuhe bwo gushonga bwicyuma cyuzuza ni 554 ~ 572 ℃, ubushyuhe bwo gutwika bushobora kuba 580 ~ 590 ℃, igihe cyo gukata ni 5min, kandi imbaraga zo gukata zifatanije zirenga 80mpa

Kubice bya grafite byashizwemo imbaraga za aluminium matrix, gutondeka mu ziko ryirinda ikirere nuburyo bwiza cyane muri iki gihe.Kugirango tunoze neza, kugurisha Al Si birimo Mg bigomba gukoreshwa.

Kimwe na aluminium vacuum brazing, wettability ya aluminiyumu matrix irashobora kunozwa cyane mugutangiza imyuka ya mg cyangwa Ti no kongeramo umubare runaka wa Mg.