Warshadaha dhalaalidda biraha, gaar ahaan kuwa aasaaska u ah iyo hawlgallada dhalaalidda, doorashada saxarada saxda ah waxay lagama maarmaan u tahay hufnaanta iyo tayada alaabta. Xirfadlayaasha biraha, gaar ahaan kuwa ku lug leh aluminium iyo aluminiinteeda, waxay u baahan yihiin adhalaalid taas oo keenta kalsoonida iyo waxqabadka. Horudhacani waxa uu sahamin doonaa sifooyinka, tilmaamaha, iyo faa'iidooyinka aynu leenahayCrucible For FoundryiyoQulqulaya Biraha dhalaalaysa, hubinta inaad samayso go'aan xog ogaal ah hawlahaaga.
Astaamaha Muhiimka ah ee Dhirtayada Dhalaliya
- Walxaha Burbursan:
- Silicon Carbide Crucibles: Waxaa loo yaqaanaa kulaylka kuleylkooda aadka u wanaagsan, weelashan waxay si wax ku ool ah ugu shaqeyn karaan heerkul ilaa iyo1700°C, oo aad uga badan barta dhalaalka aluminium (660.37°C). Qaab-dhismeedkooda cufnaanta sare waxay siinayaan xoog cajiib ah iyo iska caabin qallafsan.
- Crucibles Silicon Carbide Kaarboonized: Nooc la wanaajiyey oo ka hadlaya daciifnimada guud ee laga helo qashinka dhaqameed, sida xoogga hooseeya iyo caabbinta shoogga kulaylka oo liita. Qalabyadani waxay isticmaalaan isku-darka fiber-carbon iyo silikoon carbide, iyagoo hubinaya waxqabad sare.
- Walaxda Crucible ee ugu Fiican:
- Qalabkeena silikoon carbide crucibles waxay bixiyaan astaamo aad u wanaagsan, oo ay ku jiraan:
- Meesha dhalaalaysa: Ilaa2700°C, ku habboon codsiyada heerkulka sare ee kala duwan.
- Cufnaanta: 3.21 g/cm³, oo gacan ka geysanaya xooggooda makaanikada ee adag.
- Habdhaqanka kulaylka: 120 W/m·K, Awood qaybinta kulaylka degdega ah iyo isku midka ah si loo horumariyo waxtarka dhalaalka.
- Iskuxidhka Balaadhinta kulaylka: 4.0 × 10⁻⁶/°Cinta u dhaxaysa 20-1000 ° C, taas oo yaraynaysa cadaadiska kulaylka.
- Heerkulka Kala Duwan:
- Cruciblesyadayada waxaa loogu talagalay in ay u adkeystaan heerkulka shaqeynaya ee kala duwan800°C ilaa 2000°Cleh isla markiiba iska caabin heerkulka ugu sarreeya2200°C, hubinta dhalaalka badbaadada iyo waxtarka leh ee biraha kala duwan.
Tilmaamaha (La beddeli karo)
No | Qaabka | OD | H | ID | BD |
36 | 1050 | 715 | 720 | 620 | 300 |
37 | 1200 | 715 | 740 | 620 | 300 |
38 | 1300 | 715 | 800 | 640 | 440 |
39 | 1400 | 745 | 550 | 715 | 440 |
40 | 1510 | 740 | 900 | 640 | 360 |
41 | 1550 | 775 | 750 | 680 | 330 |
42 | 1560 | 775 | 750 | 684 | 320 |
43 | 1650 | 775 | 810 | 685 | 440 |
44 | 1800 | 780 | 900 | 690 | 440 |
45 | 1801 | 790 | 910 | 685 | 400 |
46 | 1950kii | 830 | 750 | 735 | 440 |
47 | 2000 | 875 | 800 | 775 | 440 |
48 | 2001 | 870 | 680 | 765 | 440 |
49 | 2095 | 830 | 900 | 745 | 440 |
50 | 2096 | 880 | 750 | 780 | 440 |
51 | 2250 | 880 | 880 | 780 | 440 |
52 | 2300 | 880 | 1000 | 790 | 440 |
53 | 2700 | 900 | 1150 | 800 | 440 |
54 | 3000 | 1030 | 830 | 920 | 500 |
55 | 3500 | 1035 | 950 | 925 | 500 |
56 | 4000 | 1035 | 1050 | 925 | 500 |
57 | 4500 | 1040 | 1200 | 927 | 500 |
58 | 5000 | 1040 | 1320 | 930 | 500 |
- Dhimista dhumucda: Kaarboonkayaga silikoon carbide crucibles waxaa loogu talagalay hoos u dhigista dhumucda30%, kor u qaadida dhaqdhaqaaqa kulaylka iyadoo la ilaalinayo xoogga.
- Xooga oo Kordhay: Xoogaa saliibteenna waxaa lagu kordhiyaa50%, iyaga oo awood u siinaya inay u adkeystaan culeyska farsamada sare.
- Iska caabinta shoogga kulaylka: Waxaa xoojiyay40%, yaraynta suurtagalnimada dildilaaca inta lagu jiro kululaynta degdega ah iyo qaboojinta.
Habka wax-soo-saarka
Habka wax-soo-saarka ee qoloftayada silikoon-carbide-ka-carboned waxay ku lug leedahay dhowr tillaabo oo muhiim ah:
- Horudhac AbuuristaFiber kaarboon waxa loo sii habeeyey qaab ku habboon wax soo saarka curyaanka ah.
- Carbonization: Tallaabadani waxay dejinaysaa qaab-dhismeedka carbide silicon ee bilowga ah.
- Cufnaanta iyo NadiifintaKaarboonization dheeraad ah waxay kordhisaa cufnaanta walxaha iyo xasilloonida kiimikada.
- SilikoonCrucible-ka waxa lagu dhex shubaa silikoon dhalaalaysa si ay u xoojiso xoogeeda iyo iska caabbinta daxalka.
- Qaabaynta kama dambaysta ah: Crucible waxaa loo qaabeeyey inuu buuxiyo shuruudo gaar ah, isagoo hubinaya waxqabadka ugu fiican.
Faa'iidooyinka iyo Waxqabadka
- Xoogga Heerkulka Sare: Iyada oo awoodda lagu ilaalinayo sharafta qaab-dhismeedka heerkul aad u daran, silikoon carbide crucibles waxay hubisaa isku halaynta inta lagu jiro hababka dhalaalidda heerkulka sare.
- Iska caabinta daxalkaQalabyadani waxay ka hortagaan daxalka aluminiumka dhalaaliyay iyo biraha kale, iyagoo si weyn u kordhinaya cimrigooda waxayna yareynayaan inta jeer ee beddelka.
- Kiimiko ahaan Inert: Silicon carbide kuma falceliso aluminium, hubinta nadiifinta birta dhalaalaysa iyo ka hortagga wasakhowga wasakhda.
- Xoogga Makaanikada: Iyada oo xoog foorarsan oo ah400-600 MPa, Cruciblesyadayadu waxay u adkeysan karaan culeysyo culus, iyaga oo ka dhigaya kuwo ku habboon codsiyada dalbanaya.
Codsiyada
Mashiinnada dhalaalka ah ee Silicon carbide waxaa si weyn loogu isticmaalaa:
- Dhirta dhalaalaysa aluminium: Muhiim u ah dhalaalka iyo nadiifinta aluminium aluminium, hubinta tayada tayada sare leh ee aluminium.
- Aluminium Alloy Foundries: Bixinta jawi heerkul sarreeya oo deggan oo loogu talagalay tuurista qaybaha aluminiumka aluminium, hagaajinta tayada alaabta iyo yaraynta heerarka qashinka30%.
- Shaybaadhka iyo Hay'adaha Cilmi-baarista: Waxay ku habboon tahay tijaabooyinka heerkulka sare, hubinta xogta saxda ah iyo natiijooyinka la isku halleyn karo oo ay ugu wacan tahay la'aanta kiimikada iyo xasilloonida kuleylka.
Gabagabo
Ourdhalaalidwaa aaladaha lagama maarmaanka u ah warshadaha dhalaalidda iyo biraha, ee loo yaqaan waxqabadkooda gaarka ah iyo wax-qabadkooda. Iyadoo mudnaanta la siinayo tayada iyo hal-abuurka joogtada ah, waxaa naga go'an inaan siino macaamiisheena xalalka dhalaalidda tayada ugu sarreeya ee ku habboon baahidooda gaarka ah. Haddii aad raadinayso weel la isku halayn karo oo loogu talagalay hawlahaaga dhalaalidda birta, ha ka fogaanin kuwayada silikoon carbide crucibles ee loogu talagalay saxnaanta iyo khibradda. Wixii su'aalo ah ama macluumaad dheeraad ah, fadlan xor u noqo inaad nala soo xidhiidho.