Kugwiritsa ntchito ndi mawonekedwe a graphite sagger crucible

Kugwiritsa ntchito ndi mawonekedwe a graphite sagger crucible

Crucible itha kugwiritsidwa ntchito pakutentha kwamphamvu kwa makristalo ambiri. Crucible akhoza kugawidwa mugraphite cruciblendiquartz crucible. Graphite crucible ali wabwino matenthedwe madutsidwe ndi kukana kutentha; Pogwiritsa ntchito kutentha kwakukulu, coefficient of thermal expansion ndi yaying'ono kwambiri. Ili ndi mphamvu yolimbana ndi kutentha kwakukulu ndi kuzizira. Imalimbana ndi asidi amphamvu ndi alkali. Ndizoyenera kutenthetsa zamadzimadzi zosiyanasiyana; Kuphatikiza pa chemistry, ma graphite crucibles amagwiritsidwa ntchito kwambiri muzitsulo, kuponyera, makina, makampani opanga mankhwala ndi madipatimenti ena; Mtsuko wa graphite umapangidwa ndi zinthu zachilengedwe za graphite, zomwe zimasunga kutentha kwapadera kwapadera kwa graphite. Mtsuko wa graphite umagwiritsidwa ntchito makamaka kusungunula zitsulo zopanda chitsulo monga mkuwa, aluminiyamu ndi aloyi. Pali zinthu zambirimbiri za graphite crucible yokha. Pano tikulemberani mwachidule chimodzi kapena ziwiri za inu.
1. Kuchepa kwa kuipitsa, chifukwa mphamvu zoyera monga gasi wachilengedwe kapena gasi wamadzimadzi zitha kugwiritsidwa ntchito ngati mafuta komanso kuwononga pang'ono.
2. Kugwiritsa ntchito mphamvu zochepa, chifukwa graphite crucible ili ndi kukonzekera koyenera, mapangidwe apamwamba ndi zipangizo zamakono. Pambuyo poyesedwa, mphamvu yogwiritsira ntchito mphamvu imakhala yochepa kusiyana ndi yamtundu womwewo wa ng'anjo.
Resistance ng'anjo yapamwamba yoyera graphite crucible imagwiritsidwa ntchito kwambiri posungunula golide, siliva ndi zitsulo zosowa.Zojambula za Ceramicamagwiritsidwa ntchito makamaka m'ma laboratories ndi kusungunula platinamu, golide ndi zitsulo zosowa. Kodi graphite crucible ingagwiritsidwe ntchito pa kutentha kwakukulu kwa 2000 ℃ pansi pa chikhalidwe cha mpweya? Kodi idzawola ndi kutulutsa okosijeni mwamphamvu? Kodi idzabisa chitsulo chosungunuka? Chofunika kwambiri ndi chakuti carburizing ndi yoopsa. Munthawi yabwinobwino, imatha kufika madigiri 2000 mumlengalenga, koma imatulutsa okosijeni mwachangu. Vuto la metal carburization liyenera kukhalapo. Tsopano pali zokutira zapadera za anti carburizing pamsika, zomwe zimamveka kuti zimakhala ndi zotsatira zabwino.