Bayanin samfur: graphite
Graphite foda yana da taushi, baki launin toka, maiko kuma yana iya gurɓata takarda. Taurin shine 1-2, kuma yana ƙaruwa zuwa 3-5 tare da haɓaka ƙazanta tare da madaidaiciyar hanya. Musamman nauyi shine 1.9-2.3. A karkashin yanayin keɓewar iskar oxygen, wurin narkewar sa yana sama da 3000 ℃, wanda yana ɗaya daga cikin ma'adanai masu jure zafin jiki. A dakin da zazzabi, da sinadaran Properties na graphite foda ne in mun gwada da barga, insoluble a cikin ruwa, dilute acid, tsarma alkali da Organic kaushi; kayan yana da tsayin daka da zafin jiki, kuma za'a iya amfani da shi azaman refractory, conductive abu, sa-resistant da lubricating abu.
Saboda da musamman tsarin, graphite yana da wadannan halaye: 1. High zafin jiki juriya: da narkewa batu na graphite ne 3850 ± 50 ℃, da kuma tafasar batu ne 4250 ℃. Wato, ƙimar asarar nauyi da ƙimar haɓakar haɓakar thermal suna da ƙanƙanta sosai yayin amfani da ultra-high zafin jiki arc sintering, kuma ƙarfin graphite yana ƙaruwa tare da haɓakar zafin jiki. A 2000 ℃, ƙarfin graphite yana ninka sau biyu. 2. Lubricity: lubricity na graphite ya dogara da girman graphite. Mafi girman ma'auni shine, ƙarami ƙimar juzu'i shine, kuma mafi kyawun aikin lubrication shine. 3. Chemical kwanciyar hankali: graphite yana da kyau sinadaran kwanciyar hankali a dakin da zazzabi, resistant zuwa acid, alkali da Organic sauran ƙarfi lalata. 4. Plasticity: graphite yana da tauri mai kyau kuma ana iya danna shi cikin zanen gado na bakin ciki. 5. Thermal girgiza juriya: lokacin da ake amfani da graphite a dakin da zafin jiki, zai iya jure wa canjin yanayin zafi ba tare da lalacewa ba. Lokacin da zafin jiki ya tashi ba zato ba tsammani, ƙarar graphite ba zai canza sosai ba kuma ba za a sami fasa ba.
Amfani:
1. Kamar yadda refractory abu: graphite da kayayyakin da halaye na high zafin jiki juriya da kuma high ƙarfi. Ana amfani da su musamman don masana'antugraphite cruciblea cikin masana'antar ƙarfe, kuma ana amfani da su azaman wakili na kariya don ingot ɗin ƙarfe da rufin tanderu na ƙarfe.
2. Kamar yadda kayan shafawa mai jurewa lalacewa: graphite galibi ana amfani dashi azaman mai mai a masana'antar injin. Lubricating man yawanci bai dace da babban gudun, high zafin jiki da kuma high matsa lamba.
3. Graphite yana da kwanciyar hankali mai kyau. An yadu amfani da petrochemical masana'antu, hydrometallurgy, acid-tushe samar, roba fiber, papermaking da sauran masana'antu sassa, wanda zai iya cece mai yawa karfe kayan.
4. Za a iya amfani da graphite azaman fensir gubar, pigment da polishing wakili. Bayan aiki na musamman, za'a iya yin graphite zuwa kayan musamman daban-daban don amfani da sassan masana'antu masu dacewa.
Lokacin aikawa: Maris 26-2021