[Otootoga faʻamatalaga] Atmospheric pressure sintered silicon carbide o se carbide non-metallic tuʻufaʻatasia faʻatasi ma le silicon ma carbon covalent bonds, ma lona maaa e lona lua i taimane ma boron carbide.Ole fua ole vaila'au ole SiC.O tioata e leai ni lanu, lanu moana ma le uliuli i foliga pe a faʻamaʻi pe o iai ni mea leaga.
O le mamafa o le ea sintered silicon carbide o se carbide e le-metallic ma le silicon ma carbon covalent bond, ma o lona maaa e lona lua i taimane ma boron carbide.Ole fua ole vaila'au ole SiC.O tioata e leai ni lanu, lanu moana ma le uliuli i foliga pe a faʻamaʻi pe o iai ni mea leaga.O le deformation o le silicon carbide ma fausaga taimane e masani ona taʻua o le emery.O le maaa o le emery e latalata i taimane, mautu vevela lelei, mautu i le vai hydroxy acid vaifofo ma le sulfuric acid concentrated, ma le le mautu i le fefiloi acid po o le phosphoric acid o le acid hydrogen concentrated ma nitric acid.Alkalis e liusuavai i se siosiomaga gaogao e eseese.Ua vaevaeina i carbide silicon synthetic ma carbide silikoni natura.carbide natural silicon, ua taʻua o le carbonite, e masani ona maua i le kimberlite ma volcanic amphibolite, ae o lona aofaiga e laʻititi ma e leai se tau eli.
Alamanuia atmospheric pressure sintered silicon carbide o se faʻafefiloi o -SiC ma -SiC ma e sau i lanu e lua: uliuli ma lanu meamata.O le silicon carbide mama e leai se lanu, o loʻo i ai mea leaga e uliuli, lanumeamata, lanumoana, samasama.Hexagonal ma kupita saito tuaoi, o le tioata o le ipu, koluma tuufaatasi.tioata luster, density 3.17-3.47G/CM3, Morse maaa 9.2, le microscope foi i le 30380 ~ 33320MPa mea liusuavai: atmospheric 2050 amata ona eseesega, toe faaleleia siosiomaga 2600 amata ona eseesega.O le fa'asologa fa'asolosolo o le 466, 480MPa.Ole malosi ole tensile ole 171.5MPa.Ole malosi faʻamalosi ole 1029MPa.O le faʻalauteleina o laina laina o le (25 ~ 1000) 5.010 ~ 6 /, ma le faʻaogaina o le vevela (20) o le 59w / (mk).Faʻamautu vailaʻau, faʻafefe i le HCI, H2SO4, HF o le a le faʻaumatia.
E tusa ai ma le faaaogaina eseese, ua vaevaeina le ea mamafa sintered silicon carbide i abrasive, refractory faamatalaga, deoxidizer, eletise silicon carbide ma isi.Ole mea ole SiC ole abrasive silicon carbide e le tatau ona itiiti ifo ile 98%.Refractories ma carbide silikon ua vaevaeina i: (1) faʻamatalaga refractory faʻamatalaga silicon carbide uliuli, lona SiC anotusi e tutusa lelei ma olo olo carbide kasa.(2) Fa'amatalaga fa'amautu lona lua carbide silikoni uliuli, SiC mea e sili atu nai lo le 90%.(3) O mea o loʻo i totonu o le carbide silikoni uliuli ma le SiC i totonu o refractory maualalo e le itiiti ifo i le 83%.O mea o loʻo i totonu o le silicon carbide ma le SiC faʻaaogaina i le deoxidizer e masani ona manaʻomia e sili atu i le 90%.Ae ui i lea, carbon alamanuia graphitization ogaumu insulation, silicon carbide anotusi o le sili atu i le 45% o le togafitiga e mafai foi ona faaaogaina e pei o steelmaking deoxidizer.Silicon carbide mo le deoxidizing agent e lua ituaiga o paʻu paʻu ma poloka poloka.O le pauta deoxidizer carbide silikoni uliuli e masani lava ona i ai le tele o le 4 ~ 0.5 mm ma le 0.5 ~ 0.1 mm.E lua vaega autu e fa'aaogaina ai le eletise silicon carbide.(1) O le carbide silicon green fa'aaogaina mo elemene fa'avevela eletise e matua tutusa lava ma le carbide silicon green fa'aaogaina mo le oloina.(2) Silicon carbide mo le puʻeina o loʻo i ai manaʻoga faʻapitoa eletise, lea e ese mai i le carbide silikoni uliuli mo le oloina o faʻamatalaga refractory.
Fa'aaogāina o le carbide silicon sintered pressure pressure
O le mamafa o le ea sintered silicon carbide oloa e iai galuega faʻapitoa e pei o le maualuga o le vevela, teteʻe o le ofuina, teteʻe o le vevela, teteʻe o le afi, teteʻe faʻavevela, le lelei tele o le eletise ma le vevela, ma isi, ma ua faʻaaogaina lautele i matagaluega eseese o le tamaoaiga o le atunuʻu.I totonu o Saina, e masani ona faʻaaogaina le carbide silicon green e pei o se abrasive.Black silicon carbide o loʻo faʻaaogaina e fai ai maa olo, lea e masani ona faʻaaogaina e tipi ma olo ai mea e maualalo le malosi, e pei o tioata, ceramics, maʻa, refractories, faʻapea foʻi mo le oloina o vaega uʻamea ma mea e le uʻamea.O le oloina e faia i le carbide silicon lanumeamata e masani ona faʻaaogaina mo le oloina o carbide sima, uʻamea titanium, tioata tioata, faʻapea foʻi ma le oloina o le liner liner ma meafaigaluega uʻamea maualuga.E na'o le fa'aogaina o mea e fa'ameamea ai le kasa silikoni kubiki mo le oloina o mea laiti.E mafai ona fa'aleleia atili le fa'aogaina o le fa'aogaina o turbine impellers e ala i le fa'aogaina o le pa'u SIC ia i latou e ala i le fa'aeletise.O le fa'aaogaina o le mamafa fa'ainisinia e tuleia ai le masini SiC200 kupita ma le W28 micro-pauta i le puipui fa'ato'aga o le afi afi i totonu, e mafai ona sili atu nai lo le fa'aluaina le ola o le pa'u.
Taimi meli: Oke-11-2023