U heellan amarka tayada sare leh iyo taageerada iibsadaha tixgelinta leh, macaamiishayada shaqaalaha khibradda leh waxay had iyo jeer diyaar u yihiin inay ka wada hadlaan baahiyahaaga oo ay noqdaan qaar ku qanacsanaanta macmiilka buuxa ee Qiimaha ugu Fiican Qalabka Kuleyliyaha Graphite ee Ujeedada Gaarka ah ee Dhalinta Warshada Kiimikada, Fikradda shirkadeena waa "Daacadnimo Xawaaraha, Adeegyada, iyo Ku qanacsanaanta ". Waxaan raacaynaa fikraddan oo aan helnaa dhammaystirka macaamiisha dheeraadka ah.
U heellan amarka tayada sare leh iyo taageerada iibsadaha ee qaddarinta leh, macaamiishayada shaqaalaha khibradda leh ayaa had iyo jeer diyaar u ah inay ka hadlaan baahiyahaaga oo ay hubiyaan ku qanacsanaanta macmiilka buuxaKuleyliyaha Shiinaha iyo dhalaalinta, Waxaan leenahay in ka badan 8 sano oo waayo-aragnimo in industry this oo aan sumcad wanaagsan ee goobtan. Xalalkayagu waxay ammaan ka heleen macaamiisha adduunka oo dhan. Hadafkayagu waa inaan ka caawino macaamiisha inay gaadhaan yoolalkooda. Waxaan wadnaa dadaallo badan si aan u gaarno xaaladdan guul-guul, waxaanan si kal iyo laab ah kuugu soo dhawaynaynaa inaad nagu soo biirto.
Kuleyliyaha garaafka
Qaybaha kuleyliyaha garaafka waxaa loo isticmaalaa foornada heerkul sare oo heerkulku gaaray 2200 darajo deegaanka faakuumka iyo 3000 digrii ee deoxidized iyo deegaanka gaaska la geliyo.
Tilmaamaha ugu muhiimsan ee kuleyliyaha garaafka:
1. isku mid ahaanshaha qaab dhismeedka kuleylka.
2. korantada wanaagsan iyo culays koronto oo sarreeya.
3. iska caabin daxalka.
4. oksidizability.
5. nadiifinta kiimikada sare.
6. xoogga farsamada sare.
Faa'iidada waa tamar hufan, qiimo sare iyo dayactir hooseeya.
Waxaan soo saari karnaa ka-hortagga oksaydhka iyo cimriga dheer ee garaafiga crucible, caaryada garaafka iyo dhammaan qaybaha kuleyliyaha garaafka.
Qiyaasaha ugu muhiimsan ee kuleyliyaha garaafka:
Tilmaamaha Farsamada | VET-M3 |
Cufnaanta Weyn (g/cm3) | ≥1.85 |
Waxyaabaha Ash (PPM) | ≤500 |
Xeebta Adag | ≥45 |
Iska caabin gaar ah (μ.Ω.m) | ≤12 |
Xoog Jilicsan (Mpa) | ≥40 |
Xoog isku dhejisan (Mpa) | ≥70 |
Max. Cabbirka hadhuudhka (μm) | ≤43 |
Isku-dhafka Balaadhinta kulaylka Mm/°C | ≤4.4*10-6 |
Kuleyliyaha garaafka ee foornada korantada wuxuu leeyahay sifooyin caabbinta kulaylka, caabbinta oksaydhka, korantada wanaagsan ee korantada iyo xoojinta farsamada ka wanaagsan. Waxaan mishiin karnaa noocyada kala duwan ee kuleyliyaha graphite sida waafaqsan naqshadaha macaamiisha.
U heellan amarka tayada sare leh iyo taageerada iibsadaha tixgelinta leh, macaamiishayada shaqaalaha khibradda leh waxay had iyo jeer diyaar u yihiin inay ka wada hadlaan baahiyahaaga oo ay noqdaan qaar ku qanacsanaanta macmiilka buuxa ee Qiimaha ugu Fiican Qalabka Kuleyliyaha Graphite ee Ujeedada Gaarka ah ee Dhalinta Warshada Kiimikada, Fikradda shirkadeena waa "Daacadnimo Xawaaraha, Adeegyada, iyo Ku qanacsanaanta ". Waxaan raacaynaa fikraddan oo aan helnaa dhammaystirka macaamiisha dheeraadka ah.
Qiimaha ugu fiicanKuleyliyaha Shiinaha iyo dhalaalinta, Waxaan leenahay in ka badan 8 sano oo waayo-aragnimo in industry this oo aan sumcad wanaagsan ee goobtan. Xalalkayagu waxay ammaan ka heleen macaamiisha adduunka oo dhan. Hadafkayagu waa inaan ka caawino macaamiisha inay gaadhaan yoolalkooda. Waxaan wadnaa dadaallo badan si aan u gaarno xaaladdan guul-guul, waxaanan si kal iyo laab ah kuugu soo dhawaynaynaa inaad nagu soo biirto.
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