NiCr 80/20silig buufin kulaylkawaa shay tayo sare leh oo loogu talagalay codsiyada buufinta arc. Siliggani wuxuu ka kooban yahay 80% nikkel iyo 20% chromium, taasoo ka dhigaysa doorasho aad u wanaagsan abuurista dahaarka u baahan iska caabbinta heerkulka sare, iska caabinta daxalka, iyo iska caabinta oksaydhka. NiCr 80/20 waxaa si weyn loogu isticmaalaa warshadaha kala duwan, oo ay ku jiraan hawada, koronto, petrochemical, iyo wax soo saarka, si loo ilaaliyo iyo dib u soo celinta sagxadaha, kor loogu qaado caabbinta xirashada, iyo kordhin nolosha qaybaha muhiimka ah. Wax qabadkeeda sare ee jawiga adag ayaa ka dhigaya xal la isku halayn karo oo codsiyada dalbanaya.
Diyaarinta saxda ah ee dusha sare waa muhiim si loo gaaro natiijooyinka ugu wanaagsan ee NiCr 80/20silig buufin kulaylka. Dusha la dahaarinayo waa in si taxadar leh loo nadiifiyaa si looga saaro wasakhda sida dufanka, saliidda, wasakhda, iyo oksaydhyada. Ku qarxinta birta leh aluminium oxide ama silikoon carbide ayaa lagula talinayaa si loo gaaro qallafsanaanta dusha sare ee 50-75 microns. Xaqiijinta dusha nadiifka ah ee qallafsan waxay kor u qaadaysaa ku-xidhka dahaarka buufinta kulaylka, taasoo u horseedaysa hagaajinta waxqabadka iyo cimri dhererka.
Curiyaha | Halabuurka (%) |
---|---|
Nikkel (Ni) | 80.0 |
Chromium (Cr) | 20.0 |
Hanti | Qiimaha caadiga ah |
---|---|
Cufnaanta | 8.4 g/cm³ |
Meesha dhalaalaysa | 1350-1400°C |
Xoogga Jilicsan | 700-1000 MPa |
Adag | 200-250 HV |
Iska caabinta Oxidation | Aad u fiican |
Habdhaqanka kulaylka | 15 W/m·K at 20°C |
Range Dhumucda Dahaarka | 0.2 - 2.0 mm |
Porosity | <1% |
Xiro iska caabin | Sare |
NiCr 80/20 silig buufinta kulaylka ah ayaa bixisa xal adag oo wax ku ool ah si kor loogu qaado sifooyinka dusha ee qaybaha soo gaadhay xaalado aad u daran. Sifooyinkeeda farsamo ee gaarka ah iyo iska caabinta oksaydhka iyo xidhashada ayaa ka dhigaysa alaab qiimo leh oo loogu talagalay codsiyada warshadaha kala duwan. Adigoo isticmaalaya NiCr 80/20 silig buufin kuleyl ah, warshaduhu waxay si weyn u wanaajin karaan waxqabadka iyo nolosha adeegga qalabkooda iyo qaybahooda.