Kulongedza kwa graphite, monga-yotsekera kwambiri komanso kutenthetsa, kumagwira ntchito yofunika kwambiri pazamafuta, mphamvu, zakuthambo, ndi zina. Kutentha kwake kwapadera-kusasunthika, kusasunthika kwa mankhwala, komanso{3}}zodzipaka mafuta kumapangitsa kukhala njira yabwino kusiyana ndi zitsulo zakale kapena polima. Nkhaniyi ifufuza zaubwino waukadaulo wa kulongedza kwa ma graphite ndi mayankho anthawi zonse.
I. Ubwino wa Kachitidwe ka Graphite Packing
Natural flake graphite, kudzera mwapadera processing, akhoza kusandulika kukodzedwa graphite kapena kusinthasintha graphite kulongedza ndi dongosolo wosanjikiza. Nkhaniyi imakhala ndi kutentha kwakukulu kwa madigiri -200 mpaka 600 m'malo oxidizing ndipo imakhala yosasinthasintha kuzinthu zambiri za acidic ndi zamchere. Poyerekeza ndi kulongedza kwa asbestosi wachikhalidwe kapena polytetrafluoroethylene (PTFE), kulongedza kwa graphite kumakhala ndi mikangano yocheperako (pafupifupi 0.1-0.15), kumachepetsa bwino kuvala pamalo osindikizira pazida zamakina. Kuphatikiza apo, matenthedwe ake amatha kufikira 100-150 W/(m·K), kupereka kutayika kwa kutentha muzosindikiza zamphamvu ndikuwongolera kwambiri kudalirika kwadongosolo.
II. Zochitika Zofananira ndi Mayankho
1. High{1}}Pressure Valve Selling System
M'mavavu akuluakulu opangira magetsi otenthetsera magetsi, -zosanjikiza zolukidwa mphete za graphite zokhala ndi mawaya a faifi tambala zimagwiritsidwa ntchito kupirira kukakamiza kwa 45 MPa ndikutulutsa ziro. Kapangidwe ka-kufikira 30%-50% ya kupsinjika koyambilira kumakwaniritsa kupumula kwapaketi komwe kumachitika chifukwa cha nthawi yayitali.
2. Chemical Pump Shaft Seal Optimization
Kwa zinthu zowononga kwambiri (monga concentrated sulfuric acid ndi hydrofluoric acid), carbon fiber- reinforced graphite packing apangidwa, kuonjezera mphamvu yake yolimba kupitirira 12 MPa. Kuphatikizika ndi jakisoni-mtundu wothira mafuta osindikizira seal, nthawi yokonza imatha kupitilira katatu kuposa momwe amachitira kale.
3. Zapamwamba{1}}Zida Zosinthira Kutentha Kwambiri
M'makina osungiramo kutentha kwa mchere wosungunuka, kulongedza kwa ma graphite ndi silicon carbide kompositi kumatsimikizira kusindikiza pa kutentha kopitilira 300 digiri pomwe kumachepetsa kutayika kwa kutentha ndi 15% -20% chifukwa cha matenthedwe abwino kwambiri a graphite.
III. Tekinoloje Zachitukuko
Kafukufuku wapano akuyang'ana kwambiri zaukadaulo wa nano-zosintha, monga kuwonjezera molybdenum disulfide (MoS₂) kapena graphene, kuti apititse patsogolo kukana kuvala kwa ma filler ndi kusinthasintha kwamafuta. Kuphatikiza apo, kusindikiza kwa 3D kwa makina opangira makonda ali mu gawo loyesa, kupangitsa kusindikiza kolondola pansi pazovuta zogwirira ntchito.
Mayankho a graphite filler, kudzera muukadaulo wazinthu komanso kukhathamiritsa kwa uinjiniya, akupitiliza kulimbikitsa chitukuko cha mafakitale kuti chikhale chogwira ntchito kwambiri, chitetezo, komanso moyo wautali. Chifukwa cha kuchuluka kwa zinthu zopangira zinthu zobiriwira, ukadaulo wochepera-wa sulfure, wosunga bwino zachilengedwe ukhalanso gawo lofunikira kwambiri pantchitoyi.
