Zowonongeka Zotsutsana ndi Corrosion of Graphite Crucibles mu Metallurgical Industry

Mawu Oyamba

M'makampani opanga zitsulo, kugwiritsa ntchito zipangizo zamakono ndizofunikira kwambiri kuti zitsimikizire kuti zitsulo ndi alloys zimagwira ntchito bwino komanso zodalirika. Zina mwazinthu zosiyanasiyana zomwe zimagwiritsidwa ntchito, ma graphite crucibles atchuka kwambiri chifukwa cha mphamvu zawo zolimbana ndi dzimbiri. Nkhaniyi ikufotokoza za kukana kwa dzimbirigraphite cruciblesndi gawo lawo lofunika kwambiri muzitsulo zazitsulo.

Kukaniza kwa Corrosion ofZithunzi za Graphite Crucibles

Graphite, mawonekedwe a kaboni, amawonetsa kukana kowopsa kwa mankhwala komanso kutentha kwambiri, ndikupangitsa kuti ikhale chinthu chabwino kwambiri pamakampani opanga zitsulo. Kukana kwa dzimbiri kwa ma graphite crucibles kumabwera chifukwa cha mawonekedwe apadera a graphite wokha. Graphite imakhala yosasunthika, yomwe imalepheretsa kuti isagwirizane ndi ma acid ambiri, alkalis, ndi zinthu zina zowononga zomwe zimakumana nazo pakusungunuka kwachitsulo ndi kupanga aloyi.

▪ Kusamva Acid:

Zojambula za graphitekuwonetsa kukana bwino kwa malo acidic. Amatha kupirira kuwonongeka kwa zidulo monga sulfuric acid, hydrochloric acid, ndi nitric acid. Mkhalidwe umenewu ndi wofunikira kwambiri pakugwira ntchito kwa ma asidi, monga kupanga zitsulo zina ndi ma oxides achitsulo.

▪ Kukana kwa Alkali:

Kuphatikiza pa ma acid,graphite crucibleskuwonetsa kukana kwa alkalis. Zinthu zamchere, monga sodium hydroxide ndi potaziyamu hydroxide, zimagwiritsidwa ntchito popanga zitsulo zosiyanasiyana.Zojambula za graphitekukhalabe osakhudzidwa ndi ma alkaliwa, kuonetsetsa kuti kukhulupirika ndi moyo wautali wa crucible panthawi zoterezi.

▪ Kulimbana ndi Oxidation:

Graphite imakhala ndi kukana kwa okosijeni kwabwino, ngakhale kutentha kwambiri. Ikatenthedwa kwambiri, graphite imapanga gawo loteteza la graphite oxide pamwamba pake, lomwe limakhala ngati chotchinga kuti asapitirire makutidwe ndi okosijeni. Katunduyu ndi wopindulitsa makamaka akamagwiritsidwa ntchito pomwe ma crucibles amakumana ndi mpweya wa okosijeni, monga kusungunula ndi kuyenga zitsulo.

Thermal Shock Resistance: Mbali ina yofunika yagraphite cruciblesndiko kukana kwawo kutenthedwa kwa kutentha. Graphite imakhala ndi matenthedwe apamwamba kwambiri komanso otsika kwambiri owonjezera kutentha, zomwe zimawathandiza kupirira kutentha kwachangu popanda kusweka kapena kusweka. Kukana kugwedezeka kwa matenthedwe ndikofunikira m'njira zomwe zimaphatikizapo kutenthetsa mobwerezabwereza ndi kuzizira, monga kuponya zitsulo ndi kupanga alloy.

Ubwino wa Graphite Crucibles

Kukana kwa dzimbiri kwa ma graphite crucibles kumapereka maubwino angapo mumakampani opanga zitsulo:

▪ Moyo Wautali:

Ma graphite crucibles amakhala ndi moyo wautali poyerekeza ndi zotengera zachikhalidwe zopangidwa ndi zinthu monga dongo kapena ceramic chifukwa chokana kwambiri dzimbiri komanso kugwedezeka kwamafuta.

▪ Katundu Wabwino Kwambiri:

Chikhalidwe chosasunthika cha graphite crucibles chimatsimikizira kuti chitsulo chosungunula kapena alloy chimakhalabe chosadetsedwa, zomwe zimatsogolera ku mapeto apamwamba kwambiri.

▪ Mphamvu Zamagetsi:

Ma graphite crucibles amakhala ndi matenthedwe abwino, omwe amathandiza kutentha kutentha, kugawa kutentha kofanana, komanso kuchepetsa kugwiritsa ntchito mphamvu panthawi yosungunuka.

Kugwiritsa Ntchito Ndalama: Ngakhale poyamba anali okwera mtengo kusiyana ndi zipangizo zina zopangira crucible, graphite crucibles 'kutalikitsa moyo ndi ntchito zapamwamba zimawapangitsa kukhala otsika mtengo m'kupita kwanthawi.

Mapeto

Ma graphite crucibles amagwira ntchito yofunika kwambiri pamakampani opanga zitsulo, zomwe zimapatsa mphamvu kukana kwa dzimbiri, kukana kutenthedwa kwamafuta, komanso kukana kwa okosijeni. Kukhoza kwawo kupirira zovuta zomwe amakumana nazo pakusungunuka kwachitsulo ndi kupanga aloyi kumawapangitsa kukhala ofunikira kwambiri pamachitidwe osiyanasiyana azitsulo. Posankha ma graphite crucibles, opanga amatha kuwonetsetsa kuti zinthu zikuyenda bwino, moyo wautali wautali, mphamvu zamagetsi, komanso kukwera mtengo kwake. Pamene makampani opangira zitsulo akupitirizabe kupita patsogolo, ma graphite crucibles adzakhalabe odalirika komanso ofunika kwambiri pofunafuna kupanga zitsulo zogwira mtima komanso zapamwamba.