Kodi graphitization ndi carbonization ndi chiyani, ndipo pali kusiyana kotani?

Kodi graphitization ndi chiyani?

Graphitization ndi njira yamakampani yomwe mpweya umasinthidwa kukhala graphite. Uku ndiko kusintha kwa microstructure komwe kumachitika muzitsulo za carbon kapena low-alloy zomwe zimatentha kutentha kwa 425 mpaka 550 digiri Celsius kwa nthawi yaitali, kunena maola 1,000. Ichi ndi mtundu wa embrittlement. Mwachitsanzo, microstructure ya carbon-molybdenum steels nthawi zambiri imakhala ndi pearlite (kusakaniza ferrite ndi simenti). Pamene zinthuzo ndi graphitized, zimayambitsa pearlite kuwola mu ferrite ndi mwachisawawa omwazika graphite. Izi zimabweretsa embrittlement wa zitsulo ndi kuchepetsa wodzichepetsa mphamvu pamene particles graphite awa mosintha anagawira masanjidwewo. Komabe, tingalepheretse graphitization pogwiritsa ntchito zipangizo ndi kukana apamwamba amene samva graphitization. Kuphatikiza apo, titha kusintha chilengedwe mwa, mwachitsanzo, kuwonjezera pH kapena kuchepetsa zinthu za chloride. Njira ina yopewera graphitization ndiyo kugwiritsa ntchito zokutira. Chitetezo cha Cathodic chachitsulo chachitsulo.

Kodi carbonization ndi chiyani?

Carbonization ndi njira yamakampani yomwe zinthu zamoyo zimasinthidwa kukhala kaboni. Zinthu zamoyo zomwe tikukambiranazi ndi nyama komanso zomera. Izi zimachitika ndi distillation yowononga. Ichi ndi pyrolytic reaction ndipo imatengedwa kuti ndizovuta kwambiri momwe machitidwe ambiri amachitira panthawi imodzi amatha kuwonedwa. Mwachitsanzo, dehydrogenation, condensation, hydrogen transfer ndi isomerization. Njira ya carbonization ndi yosiyana ndi ndondomeko ya carbonization chifukwa carbonization ndi njira yofulumira chifukwa imagwira ntchito zambiri zaukulu mofulumira. Nthawi zambiri, kuchuluka kwa kutentha komwe kumagwiritsidwa ntchito kumatha kuwongolera kuchuluka kwa carbonization ndi kuchuluka kwa zinthu zakunja zomwe zatsala. Mwachitsanzo, kaboni wotsalirayo ndi pafupifupi 90% kulemera kwa 1200K ndi pafupifupi 99% kulemera kwa pafupifupi 1600K. Kawirikawiri, carbonization ndi exothermic reaction, yomwe imatha kusiyidwa yokha kapena kugwiritsidwa ntchito ngati gwero la mphamvu popanda kupanga mpweya uliwonse wa carbon dioxide. Komabe, ngati biomaterial ikukumana ndi kusintha kwadzidzidzi kwa kutentha (monga kuphulika kwa nyukiliya), biomaterial idzatulutsa mpweya mwamsanga ndikukhala carbon yolimba.

Graphitization ndi yofanana ndi carbonization

Zonsezi ndi njira zofunika zamafakitale zomwe zimaphatikizapo kaboni ngati chochita kapena chinthu.

Kodi pali kusiyana kotani pakati pa graphitization ndi carbonization?

Graphitization ndi carbonization ndi njira ziwiri zamakampani. Kusiyana kwakukulu pakati pa carbonization ndi graphitization ndikuti carbonization imaphatikizapo kutembenuza zinthu zamoyo kukhala carbon, pamene graphitization imaphatikizapo kutembenuza mpweya kukhala graphite. Choncho, carbonization ndi kusintha kwa mankhwala, pamene graphitization ndi kusintha kwa microstructure.