Habka diyaarinta xumbo aluminium

Hababka diyaarinta ee kala duwan awgeed, xumbo aluminium waxaa loo kala saari karaa xumbo aluminium-unug ah oo xiran, semi-xumbo aluminium unug xiran, iyo xumbo aluminium ah oo unug-furan oo ku salaysan sida godadka loogu xidhay. Hababka diyaarinta ee xumbo aluminium waxaa si ballaaran loo kala saari karaa saddex qaybood: wejiga dareeraha, wejiga adag, iyo dhigista.

(1) Habka wajiga dareeraha

Habka dareeraha-wejiga waa habka diyaarinta badan oo qaan-gaadhka ah ee xumbo aluminium, oo leh cilmi-baaris ballaadhan iyo rajada codsiga, inta badan ay ku jiraan gaas ku afuufo habka dareeraha biraha, habka wakiilka afuufi dareere dareere, habka maalgelinta, iyo habka shubidda seepage.

Gaaska afuufaya habka dareeraha birta ah: in birta dhalaalaysa dhalaalaysa aluminium ku dar qaybo dhumuc weyn, si loo hagaajiyo viscosity ee dhalaalidda, dhumucyada caadi ahaan loo isticmaalo waxay leeyihiin carbide silicon, alumina magnesium oxide, iwm. , hydrogen, ama isku dar ah oo ka mid ah gaasaskan, iyo si joogto ah walaaqaya, biraha dhalaalay waxaa la heli karaa ka dib markii la qaboojiyo porosity of 80% ~ 97.5% ee aluminium xumbo, sida ku cad sawirka 1.

Fig.1 Macromorphology ee xumbo aluminium ah oo lagu diyaariyey habka duritaanka gaaska

(2) Habka wakiilka dareeraha dareeraha birta: dhalaalka aluminiumka dhalaaliyay ku dar wakiilka afuufaya, adoo kululeynaya wakiilka afuufaya sii deynta gaaska, balaarinta kulaylka kuleylka ee birta dhalaalaysa xumbo, ka dib qaboojinta waxaa la heli karaa 91% ~ 93 % ee porosity ee aluminium xumbo. Wakiilka xumbo loo isticmaalo wax soo saarka eexumbo aluminiumTiH2, ZrH2, iyo CaH2, iyo wixii la mid ah.

(3) Habka shubista caaryada dhalaalaysa: isticmaalka walxaha dareeraha ah ee dareeraha ah si loo buuxiyo daldaloolada xumbo isbuunyada, in la adkeeyo walxaha refractory, kuleylinta si loo sameeyo gaaska caagga ah iyo helitaanka qaab dhismeedka daloolka isbonji ee shubka, aluminium dhalaalay ayaa lagu shubay shubistan, la qaboojiyey oo la xoojiyey si meesha looga saaro walxaha dib-u-celinta, waxaa laga heli karaa porosity of 80% ~ 97% ee aluminium xumbo.

(4) Habka shubista Seepage: Heerkulka sare ee aluminium dareere ah oo heerkulkiisu sarreeyo oo hoos yimaada cadaadis gaar ah oo ku dhex jira farqiga buuxinta si aad u hesho isku-darka biraha buuxinta, ka dibna isticmaal immersion ama gariir ultrasonic iyo habab kale si aad uga saarto buuxinta, si aad u hesho porosity of 70% ama wax la mid ahxumbo aluminium. Buuxiyeyaasha sida caadiga ah loo isticmaalo waa milix milma, kubbado dhoobo ah oo aan la milmi karin, kubbadaha corundum-ka bannaan, kaarboon xumbo, iyo wixii la mid ah. Habkan waxa loo kala qaybin karaa laba nooc: Habka shubista cadaadiska kor u kaca iyo habka shubista cadaadiska xun.

2. Habka wejiga adag

(1) Habka birta budada ah: Habka birta budada ah waa in lagu qaso budada aluminium iyo walax afuufaya (sida caadiga ah loo isticmaalo TiH2) qayb gaar ah, u diyaari jir-jeermiska kahor cadaadiska ku habboon, ka dibna jirka horay loo soo saaray waa la riixay. si dheeraad ah loo warshadeeyay, sida rogid, foorjari, iwm., ka dibna alaabtan semi-dhammeeyay ayaa la gelinayaa caaryada birta ee loo baahan yahay, kulaylka heerkul gaar ah si wakiilka afuufaya wuu dami si uu u sameeyo xumbo oo uu helo aluminium xumbo. Habkani aad buu u dhib badan yahay, laakiin tayada alaabadu way sarraysaa, waxqabadkuna waa deggan yahay, sidaas awgeed si degdeg ah ayuu u kobcayaa, laakiin habkan lama soo saari karo si joogto ah sababtoo ah qiimaha sare ee alaabta ceeriin.

(2) Habka slurry impregnation budada: habayn viscosity gaar ah oo ka mid ah budada aluminium slurry, wax xumbo polymer dalool la geliyey slurry this, budada waxaa lagu shubaa derbiga dalool ee alaabta xumbo polymer, ka dibna qalajiyo daaweynta, kululaynta si Burburka kulaylka ee walxaha xumbo polymer, walxaha isbuunyada ee habka jajabinta si ay u ciyaaraan door taageero ku-meel-gaar ah, iyo ugu dambeyntii budada aluminiumku waa la miiray. wada jir, ka dibna la qaboojiyey si aad u hesho porosity 70% ilaa 90% ee ah Xumbo aluminium ah.

(3) Ku dar habka walxaha kubbadda: ku dar walxaha kubbadda ama kubbadda bannaan ee aluminium dhalaalidda oo walaaq, si qalabka kubbadda si siman loogu qaybiyo dhalaalka aluminiumka; sii wad inaad walaaqdo oo qaboojiso viscosity ku filan, oo ku dur moodka si aad u hesho walxaha birta-kubbada isku dhafan. Marka walxaha kubbadda lagu daray ay yihiin walxo milmi leh, habka loo dhaqo immersion waxaa loo isticmaali karaa in lagu milo walxaha kubbadda, si loo helo aluminium xumbo-nooc-dalool ah.

3. Habka korantada

Xumbo by habka conductive sida wax cathode ah, saxan aluminium saafi warshadeed for wax anode ah, in dahaadhaysa xal aluminium alkyl, si aluminium ah lagu shubaa dusha xumbo ah, ka dib markii la qalajiyo at sintering heerkulka gaar ah, kala-goynta kulaylka ee xumbo,xumbo aluminium. Habkani waa mid adag oo u baahan in la hagaajiyo doorsoomayaasha, laakiin qaab dhismeedka xumbo waa labbis badan. Qaab dhismeedka xumbo aluminium ee ay diyaarisay habka korantada ayaa lagu muujiyay sawirka 2.

Jaantuska 2 Macromorphology ee xumbo aluminium ah oo lagu diyaariyey korantada