Carburizing wothandizira, amagwiritsidwa ntchito mu zitsulo ndi kuponya makampani, kwa carburizing, desulfurization ndi zipangizo zina zothandizira. Chomwe chimagwiritsidwa ntchito kwambiri m'makampani osungunula chitsulo ndi chitsulo ndikupangira zinthu za carbon zomwe zimawotchedwa panthawi yachitsulo ndi chitsulo chosungunuka ndi kuwonjezera zinthu zomwe zimakhala ndi carbon.
Mu smelting ndondomeko ya zitsulo ndi zitsulo mankhwala, nthawi zambiri chifukwa cha smelting nthawi, kugwira nthawi, kutenthedwa nthawi ndi zinthu zina, kusungunuka imfa ya carbon zinthu mu madzi chitsulo chitsulo, chifukwa cha kuchepa kwa mpweya zili madzi chitsulo, chifukwa mpweya wa chitsulo chamadzimadzi sichingathe kufika pamtengo woyenga woyenga. Chifukwa chake, ndikofunikira kuwonjezera zinthu za carburizing kuti musinthe zomwe zili muzitsulo za kaboni, zomwe ndizofunikira kwambiri popanga zitsulo zapamwamba kwambiri.
Carburizing wothandizira malinga ndi kupanga zipangizo akhoza kugawidwa mu: nkhuni mpweya, malasha mpweya, coke carbon, graphite.
1. Mpweya wamatabwa
2. Mpweya wa malasha
* General calcining malasha carburizer: Ndi mankhwala a phulusa otsika ndi otsika sulfure chabwino kutsuka anthracite mu calcination ng'anjo pambuyo pafupifupi 1250 ℃ kutentha calcination, makamaka opangidwa ku Ningxia, Inner Mongolia. Kaboni wamba ndi 90-93%. Amagwiritsidwa ntchito makamaka m'mabizinesi opangira zitsulo, ndipo mabizinesi ena oponya amagwiritsidwa ntchito muchitsulo chotuwa. Chifukwa cha kaphatikizidwe ka mamolekyu ake a kaboni, njira yoyamwitsa kutentha imachedwa ndipo nthawi ndi yayitali.
* Asphalt coking carburizer: chopangidwa ndi malasha tar hydrogenation kuti apange mafuta. Ndi carbon high, low sulfure ndi low nitrogen carburizer yotengedwa ku phula. Zomwe zili ndi mpweya zili pakati pa 96-99.5%, kapangidwe kake ndi kwamphamvu, mphamvu yamakina ndikuvala zochulukirapo, zosavuta kuchita masewera olimbitsa thupi.
* Metallurgical coke carburizing wothandizira: coking malasha kuwombera, nthawi zambiri cupola ndi coke lalikulu, kuwonjezera smelting, komanso ntchito zitsulo mlandu carburizing.
3. Coke (petroleum coke) carbon
* Calcined coke carburizer: Ndi chinthu chopangidwa ndi mafuta otsika a sulfure coke ngati zopangira, zomwe zimakonzedwa mu ng'anjo yamoto pa madigiri 1300-1500 pambuyo pochotsa chinyezi, zovunda ndi zonyansa. Mpweya wake wa carbon wokhazikika nthawi zambiri umakhala wokhazikika pafupifupi 98.5%, ndipo sulfure wake amakhala wochepera 0.5% kapena 1%. Kachulukidwe kake ndi kakang'ono, kosavuta kuwola, ndipo nthawi yogwiritsira ntchito ndi yapakati. Kupanga kumakhala makamaka ku Shandong, Liaoning, Tianjin. Chifukwa cha mtengo wake komanso kupezeka m'magulu ambiri a carburizing agent ali ndi mwayi, msika umagwiritsidwa ntchito kwambiri.
* Zithunzi za petroleum coke carburizing agent: petroleum coke mu ng'anjo yosungunula yojambula zithunzi pambuyo pa madigiri 3000 a kutentha kwakukulu kwa zinthu za graphic, kuyamwa mofulumira, mpweya wambiri komanso ubwino wochepa wa sulfure. Mpweya wake wa kaboni ndi 98-99%, index ya sulfure ndiyotsika kuposa 0.05% kapena 0.03%, madera opangira amakhazikika ku Inner Mongolia, Jiangsu, Sichuan ndi zina zotero. Njira ina imachokera ku graphite elekitirodi kudula zinyalala, chifukwa graphite elekitirodi palokha pambuyo graphitization mankhwala, zinyalala Angagwiritsidwenso ntchito ngati wothandizila carburizing kwa mphero zitsulo.
* Semi-graphitic petroleum coke carburizer: kutentha kwa graphic sikokwera kwambiri ngati graphic carburizer, kaboni nthawi zambiri imakhala yoposa 99.5, sulfure imakhala yoposa graphic carburizer, pansi pa 0.3%.
4. Mtundu wa graphite
* Earth-ngati graphite carburizing agent: ndikugwiritsa ntchito graphite ngati dziko lapansi muchitsulo ndi chitsulo chosungunula kapena kuponyera carburizing, malo ake opangira kwambiri ku Hunan, ndikugwiritsira ntchito mwachindunji kwa ufa wa graphite wapadziko lapansi, womwe nthawi zambiri umakhala mu 75-80. %, ikhoza kuyeretsedwa kuti ionjezere zomwe zili mu kaboni.
* Natural graphite carburizing wothandizila: makamaka flake graphite, zili carbon mu 65-99%, otsika bata, ambiri ntchito mphero zitsulo.
* Composite carburizing wothandizira: graphite ufa, coke ufa, petroleum coke ndi zipangizo phazi, kuwonjezera zomangira zosiyanasiyana ndi makina akhoza mbamuikha mu mawonekedwe, kwa ndodo granular. Mpweya wa carbon nthawi zambiri umakhala pakati pa 93 ndi 97%, ndipo sulfure imakhala yosakhazikika, nthawi zambiri imakhala pakati pa 0.09 ndi 0.7.
Nthawi yotumiza: Nov-17-2022