Katundu ndi ntchito za graphite

Kufotokozera Kwazinthu: graphite

Graphite ufa ndi wofewa, wakuda wa imvi, wonyezimira ndipo ukhoza kuipitsa pepala. Kulimba ndi 1-2, ndipo kumawonjezeka kufika 3-5 ndi kuwonjezeka kwa zonyansa motsatira njira yowongoka. Mphamvu yokoka yeniyeni ndi 1.9-2.3. Pansi pa chikhalidwe cha kudzipatula kwa okosijeni, malo ake osungunuka amakhala pamwamba pa 3000 ℃, yomwe ndi imodzi mwa mchere wosamva kutentha. Pa firiji, mankhwala zimatha graphite ufa ndi wokhazikika, insoluble m'madzi, kuchepetsa asidi, kuchepetsa alkali ndi organic solvents; zakuthupi ali mkulu kutentha kukana ndi madutsidwe, ndipo angagwiritsidwe ntchito ngati zinthu refractory, conductive, kuvala zosagwira ndi lubricating zakuthupi.

Chifukwa cha mawonekedwe ake apadera, graphite ili ndi zizindikiro zotsatirazi: 1. Kutentha kwakukulu kwa kutentha: malo osungunuka a graphite ndi 3850 ± 50 ℃, ndipo malo otentha ndi 4250 ℃. Ndiko kunena kuti, kuchuluka kwa kuwonda ndi kokwanira kwa kukulitsa kwamafuta kumakhala kochepa kwambiri mukamagwiritsa ntchito ultra-high kutentha kwa arc sintering, ndipo mphamvu ya graphite imawonjezeka ndikuwonjezeka kwa kutentha. Pa 2000 ℃, mphamvu ya graphite imawirikiza kawiri. 2. Lubricity: lubricity of graphite imadalira kukula kwa graphite. Kukula kwake kumakhala kocheperako, komwe kumakhala kocheperako, komanso momwe mafuta amagwirira ntchito bwino. 3. Kukhazikika kwa Chemical: graphite ili ndi kukhazikika kwamankhwala bwino kutentha kwa firiji, kugonjetsedwa ndi asidi, alkali ndi organic zosungunulira dzimbiri. 4. Pulasitiki: graphite imakhala yolimba bwino ndipo imatha kukanikizidwa kukhala mapepala owonda. 5. Kutentha kwa kutentha kwa kutentha: pamene graphite imagwiritsidwa ntchito kutentha, imatha kupirira kusintha kwakukulu kwa kutentha popanda kuwonongeka. Kutentha kukakwera mwadzidzidzi, kuchuluka kwa graphite sikudzasintha kwambiri ndipo sipadzakhala ming'alu.

Zogwiritsa:

1. Monga zinthu zotsutsa: graphite ndi mankhwala ake ali ndi makhalidwe a kutentha kwambiri komanso mphamvu zambiri. Amagwiritsidwa ntchito makamaka popangagraphite cruciblem'mafakitale opangira zitsulo, ndipo amagwiritsidwa ntchito ngati chitetezo chachitsulo chachitsulo ndi ng'anjo yazitsulo.

2. Monga mafuta osagwira ntchito: graphite imagwiritsidwa ntchito ngati mafuta opangira makina. Mafuta opaka mafuta nthawi zambiri sali oyenera kuthamanga kwambiri, kutentha kwambiri komanso kuthamanga kwambiri.

3. Graphite ali ndi kukhazikika kwa mankhwala. Amagwiritsidwa ntchito kwambiri m'makampani a petrochemical, hydrometallurgy, kupanga acid-base, fiber synthetic, papermaking ndi magawo ena ogulitsa, omwe amatha kupulumutsa zitsulo zambiri.

4. Graphite angagwiritsidwe ntchito ngati pensulo lead, pigment ndi kupukuta wothandizira. Pambuyo pokonza mwapadera, ma graphite amatha kupangidwa kukhala zida zapadera kuti zigwiritsidwe ntchito ndi madipatimenti oyenera amakampani.