Rullaluistemadka Dhoobada Alumina
Rullaluistemyada dhoobada Aluminawaa badeecooyin warshadeed oo tayo sare leh oo ka kooban alumina (Al₂O₃), waana qaybo muhiim ah oo ka mid ah foornooyinka casriga ah ee duubista heerkulka sare leh. Laga sameeyay alumina saafi ah oo heer sare ah iyada oo loo marayo cadaadis isostatic ah iyo sintering heerkul sare leh, usha duubistayadu waxay ku faantaa iska caabin heer sare ah oo heer sare ah, iska caabin xirasho iyo xasillooni shoogga kulaylka. Waxaan bixinaa habayn dhammaystiran si loo daboolo baahiyaha shaqsiyeed ee warshadaha iyo qalabka kala duwan.
Qeexitaannada Caadiga ah & Habaynta:
Tilmaamaha caadiga ah ee hoose; habayn buuxda ayaa la heli karaa iyadoo lagu saleynayo xuduudahaaga, sawirradaada ama baahiyahaaga foornada/wax soo saarka:
1. Waxyaabaha Alumina ka kooban:92%/95%/99% (la beddeli karo 85%–99.5%)
2. Dhexroorka Dibadda:12–100mm (caadi ahaan 12-80mm, 10–150mm la beddeli karo, dulqaad la hagaajin karo)
3. Dhererka:500–6000mm (caadi ahaan 1200-5300mm, 300–6000mm la beddeli karo, oo la isku dari karo oo dheer)
4. Nuugista Biyaha:3–6% (la habeyn karo ≤2% ama shuruudo gaar ah)
5. Xoogga Laabista:60–100MPa (la habeyn karo ilaa 150MPa)
6. Nooca:Adkaad/Godan (godan: dhumucda derbiga/godka gudaha oo la beddeli karo)
7. Habayn kale:Daaweynta dusha sare, qaab-dhismeedka dhammaadka, saamiga walxaha gaarka ah ee xaaladaha ba'an.
Astaamaha Badeecada:
1. Iska caabin Heerkul Sare oo Aad u Fiican:Heerkulka ugu badan ee hawlgalka ilaa 1600℃, iska caabin ≥1750℃, deggan heerkulka sare iyada oo aan isbeddelin; xasillooni kuleyl oo aad loogu kalsoonaan karo iyo iska caabin shoogga kulaylka oo aad u fiican oo loogu talagalay alaabada la shido ilaa 1400℃.
2. Adkeysiga Sare & Iska caabinta Xidhitaanka:Adkaysiga Rockwell HRA80-90 (labaad kaliya ka dambeeya dheemanka), Adkaanshaha Mohs ≥9; iska caabbinta xirashadu waa 266 jeer birta manganese iyo 171.5 jeer birta chromium-ka badan, taasoo kordhinaysa cimriga qalabka ugu yaraan toban jeer isla markaana yaraynaysa wakhtiga shaqada iyo kharashyada.
3. Xasiloonida Shoogga Kulaylka Sare:Ballaarinta kulaylka oo hooseysa, u adkaysata kuleylinta/qaboojinta degdega ah, oo aan si fudud loo jabin karin.
4. Xasillooni Kiimiko oo Wanaagsan:Aashitada/alkali/glaze-ka u adkaysta daxalka, ma jiraan wax wasakh ah oo ku yimaada alaabada la warshadeeyay.
5. Dusha siman iyo Saxnaan Sare:Dhul sax ah (Ra ≤1.6μm), hawlgal deggan, xoqan la'aan (saxnaanta la beddeli karo).
6. Iftiinka iyo Kaydinta Tamarta:Cufnaanta 3.5–3.8 g/cm³ (3.6 g/cm³ sida caadiga ah, kaliya kala bar birta), taasoo si weyn u yareyneysa culeyska qalabka iyo kordhinta cimriga qalabka.
| Tusmada Farsamada | G98 | G96 | A95 | A93 | V93 | V90 | H95 |
| Nuugista Biyaha | 3-5 | 4-6 | 4.5-7.5 | 5-8 | 6-8 | 6.5-8.5 | 5.5-7.5 |
| Xoogga Laabista (Heerkulka Qolka) | 65-78 | 60-75 | 60-70 | 55-65 | 50-65 | 50-65 | 60-70 |
| Xoogga Laabista (Heerkulka 1350) | 55-70 | 50-65 | 48-60 | 45-55 | 40-55 | 40-55 | 50-65 |
| Cufnaanta Badan | 2.9-3.1 | 2.7-2.9 | 2.6-2.8 | 2.5-2.7 | 2.45-2.65 | 2.4-2.6 | 2.65-2.85 |
| Isugeynta Ballaarinta Kulaylka | 6.0-6.4 | 6.0-6.4 | 6.0-6.5 | 6.0-6.5 | 6.0-6.5 | 6.0-6.5 | 6.0-6.5 |
| Iska caabinta Shoogga Kulaylka | Aad u Fiican | Aad u Fiican | Aad u Fiican | Aad u Fiican | Aad u Fiican | Aad u Fiican | Aad u Fiican |
| Heerkulka Hawlgalka Ugu Badan | 1400 | 1350 | 1300 | 1300 | 1250 | 1250 | 1300 |
| Waxyaabaha Aluminiumka ku jira (%) | 79 | 78 | 77 | 76 | 75 | 75 | 77 |
Codsiyada ugu Muhiimsan:
1. Warshadaha Dhoobada: Foornooyinka derbiga/sagxadda, dhoobada nadaafadda/maalinlaha ah, foornooyinka la safeeyey, looxyada waaweyn
2. Warshadaha Muraayadaha: Foornooyinka lagu kululeeyo galaaska, iyo kuwa lagu kululeeyo heerkulka
3. Daaweynta Birta iyo Kulaylka: Khadadka gudbiyaha heerkulka sare leh
4. Tamar Cusub: Foornooyinka sintering elektrod togan/taban
5. Kuwa kale: Qalabka kiimikada heerkulka sare leh, foornooyinka qaybaha elektaroonigga ah (loo habeyn karo goobo badan)
Taxaddarrada Isticmaalka:
1. Godadka gudaha ee labada daraf ee duubka waa in lagu buuxiyaa suuf faybar ah oo aan la qabsan karin.
2. Waa in la mariyaa dahaar ilaalin ah ka hor inta aan la gelin foornada oo loo daayaa inuu gebi ahaanba engego.
3. Inta la isticmaalayo, haraaga dusha sare waa in si joogto ah loo nadiifiyaa.
4. Markaad beddelayso duubayaasha, fiiro gaar ah u yeelo heerka qaboojinta iyo habka looga fogaado waxyeelada ka dhalata kululaynta degdega ah ama qaboojinta.
Su'aalaha Badiya La Weydiiyo
Ma u baahan tahay caawimo? Hubi inaad booqato golayaashayada taageerada si aad u hesho jawaabaha su'aalahaaga!
Waxaan nahay soo-saare dhab ah, warshadeenu waxay ku takhasustay soo saarista agabyada aan la qabsan karin in ka badan 30 sano. Waxaan ballan qaadaynaa inaan bixinno qiimaha ugu fiican, adeegga ugu fiican ee iibka kahor iyo adeegga iibka kadib.
Nidaam kasta oo wax soo saar ah, RBT waxay leedahay nidaam QC oo dhammaystiran oo loogu talagalay halabuurka kiimikada iyo sifooyinka jireed. Waxaanan tijaabin doonnaa alaabta, shahaadada tayadana waxaa lala soo raaci doonaa alaabta. Haddii aad leedahay shuruudo gaar ah, waxaan isku dayi doonnaa sida ugu wanaagsan ee aan u dabooli karno.
Iyadoo ku xiran tirada, waqtiga keenisteenu wuu ka duwan yahay. Laakiin waxaan ballan qaadaynaa inaan sida ugu dhakhsaha badan u soo dirno iyadoo tayo la hubo la hubo.
Dabcan, waxaan bixinaa muunado bilaash ah.
Haa, dabcan, waa lagu soo dhaweynayaa inaad booqato shirkadda RBT iyo alaabtayada.
Ma jiro xad, waxaan ku siin karnaa talada iyo xalka ugu fiican iyadoo loo eegayo xaaladdaada.
Waxaan samaynaynay agab aan la qabsan karin in ka badan 30 sano, waxaan leenahay taageero farsamo oo xooggan iyo waayo-aragnimo qani ah, waxaan ka caawin karnaa macaamiisha inay naqshadeeyaan foosto kala duwan oo ay bixiyaan adeeg hal joogsi ah.
