Kula da inganci

Gwajin Ingantacciyar Graphite

Bayanin gwaji

Graphite ne allotrope na carbon, wani tsaka-tsakin crystal tsakanin atomic lu'ulu'u, karfe lu'ulu'u da kwayoyin lu'ulu'u.Generally launin toka baki, taushi texture, m feeling.Ingantacciyar zafi a cikin iska ko oxygen da konewa da kuma samar da carbon dioxide.Karfafa oxidizing jamiái za oxidize shi a cikin. Organic acid.Used as antiwear wakili da lubricating abu, yin crucible, electrode, bushe baturi, fensir gubar.The ikon yinsa, graphite ganewa: halitta graphite, m crystalline graphite, flake graphite, cryptocrystalline graphite, graphite foda, graphite takarda, kumbura graphite, graphite emulsion, fadada graphite, lãka graphite da conductive graphite foda, da dai sauransu.

Musamman Properties na graphite

1. high zafin jiki juriya: da narkewa batu na graphite ne 3850 ± 50 ℃, ko da bayan matsananci-high zazzabi baka kona, da nauyi asara ne sosai kananan, thermal fadada coefficient ne sosai small.The ƙarfi na graphite yana ƙaruwa tare da karuwa da yawan zafin jiki. . A 2000 ℃, ƙarfin graphite ya ninka.
2. conductive, thermal watsin: da conductivity na graphite ne sau ɗari mafi girma fiye da general non-metallic ore.The thermal watsin karfe, baƙin ƙarfe, gubar da sauran karfe kayan.Thermal watsin da karuwa da zafin jiki, ko da a sosai. high zafin jiki, graphite cikin rufi;
3. lubricity: aikin lubrication na graphite ya dogara da girman flake graphite, flake, gogayya coefficient ya fi karami, aikin lubrication ya fi kyau;
4. sinadaran kwanciyar hankali: graphite a dakin zafin jiki yana da kyau sinadaran kwanciyar hankali, acid juriya, alkali juriya da kwayoyin sauran ƙarfi lalata juriya;
5. filastik: ƙarfin graphite yana da kyau, ana iya murƙushe shi cikin takarda mai bakin ciki sosai;
6. thermal shock juriya: graphite a dakin da zafin jiki lokacin da aka yi amfani da shi zai iya jure wa m canje-canje a cikin zafin jiki ba tare da lalacewa, zazzabi maye gurbi, ƙarar graphite canza kadan, ba zai fashe.

Biyu, alamun ganowa

1. nazarin abun da ke ciki: ƙayyadaddun carbon, danshi, ƙazanta, da dai sauransu;
2. Gwajin aikin jiki: taurin, ash, danko, fineness, girman barbashi, haɓakawa, ƙayyadaddun nauyi, takamaiman yanki, wurin narkewa, da dai sauransu.
3. Gwajin kaddarorin inji: Ƙarfin ƙarfi, ɓarna, gwajin lanƙwasawa, gwajin gwaji;
4. gwajin aikin sinadarai: juriya na ruwa, karko, juriya acid da alkali, juriya na lalata, juriya yanayi, juriya mai zafi, da sauransu.
5. Sauran abubuwan gwaji: haɓakar lantarki, haɓakar thermal, lubrication, kwanciyar hankali na sinadarai, juriya na girgiza thermal