Ferroboron ndi aloyi yachitsulo yopangidwa ndi boron ndi chitsulo, yomwe imagwiritsidwa ntchito makamaka muzitsulo ndi chitsulo.Kuonjezera 0.07% B kuchitsulo kungapangitse kwambiri kuuma kwachitsulo.Boron wowonjezeredwa ku 18% Cr, 8% Ni chitsulo chosapanga dzimbiri akalandira chithandizo angapangitse kuti mvula ikhale yolimba, kupititsa patsogolo kutentha kwamphamvu ndi kuuma.Boron mu iron iron imakhudza graphitization, motero imakulitsa kuya kwa dzenje loyera kuti likhale lolimba komanso losamva.Kuonjezera 0.001% ~ 0.005% boron ku chitsulo chosungunuka ndi kopindulitsa kupanga inki ya spheroidal ndikuwongolera kugawa kwake.Pakali pano, aluminium otsika ndi otsika carbon iron boron ndizo zikuluzikulu zopangira ma amorphous alloys.Malinga ndi muyezo wa GB5082-87, boron yachitsulo yaku China imagawidwa m'magulu ang'onoang'ono a carbon ndi apakati apakati pamagulu 8.Ferroboron ndi aloyi wamitundu yambiri wopangidwa ndi chitsulo, boron, silicon ndi aluminiyamu.
Ferric boron ndi deoxidizer wamphamvu komanso wowonjezera wa boron popanga zitsulo.Udindo wa boron mu zitsulo ndikuwongolera kwambiri kuuma ndikusintha kuchuluka kwa zinthu zophatikizika ndi boron pang'ono chabe, komanso zimatha kusintha zinthu zamakina, kuzizira kwazinthu, kuwotcherera komanso kutentha kwambiri.
Malinga ndi carbon zili boron chitsulo akhoza kugawidwa mu otsika mpweya kalasi ndi sing'anga mpweya kalasi magulu awiri, motero kwa magulu osiyana zitsulo.Mankhwala a ferric boron alembedwa mu Table 5-30.Low carbon iron boride imapangidwa ndi njira ya thermit ndipo imakhala ndi aluminiyamu yambiri.Chitsulo chapakati cha carbon boron chimapangidwa ndi silicothermic process, yokhala ndi aluminiyamu yotsika komanso mpweya wambiri.Zotsatirazi zidzawonetsa mfundo zazikulu ndi mbiri ya ntchito ya boroni yachitsulo.
Choyamba, mfundo zazikulu za ntchito chitsulo boron
Mukamagwiritsa ntchito iron boride, mfundo zotsatirazi ziyenera kukumbukiridwa:
1. Kuchuluka kwa boron mu boroni yachitsulo si yunifolomu, ndipo kusiyana kwake ndi kwakukulu kwambiri.Kagawo kakang'ono ka boron komwe kamaperekedwa muyezo kumayambira 2% mpaka 6%.Pofuna kuwongolera bwino zomwe zili ndi boron, ziyenera kusungunuka mu ng'anjo ya vacuum induction musanagwiritse ntchito, kenako ndikugwiritsidwa ntchito pambuyo posanthula;
2. Sankhani kalasi yoyenera yachitsulo boride malinga ndi chitsulo chosungunula.Mukasungunula chitsulo chosapanga dzimbiri cha boron pamakampani opanga mphamvu za nyukiliya, kaboni wochepa, aluminium otsika, phosphorous iron boron iyenera kusankhidwa.Pamene smelting boron munali aloyi structural chitsulo, sing'anga mpweya kalasi chitsulo boride akhoza kusankhidwa;
3. Kuchuluka kwa boron mu iron boride kunachepa ndi kuchuluka kwa boron.Kuti mupeze chiwongola dzanja chabwino, ndibwino kusankha boride yachitsulo yokhala ndi boron yochepa.
Chachiwiri, mbiri ya chitsulo boron
British David (H.Davy) kwa nthawi yoyamba kupanga boron ndi electrolysis.H.Moissan anatulutsa carbon iron borate mu ng'anjo yamagetsi yamagetsi mu 1893. M'zaka za m'ma 1920 panali zovomerezeka zambiri zopangira chitsulo.Kukula kwa ma amorphous alloys ndi zida zokhazikika za maginito m'zaka za m'ma 1970 zidakulitsa kufunikira kwa chitsulo.Chakumapeto kwa zaka za m'ma 1950, bungwe la China la Beijing Iron and Steel Research Institute linapanga bwino kupanga iron boride pogwiritsa ntchito njira ya thermit.Pambuyo pake, Jilin, Jinzhou, Liaoyang ndi kupanga zina zambiri, pambuyo pa 1966, makamaka ndi kupanga Liaoyang.Mu 1973, boron yachitsulo idapangidwa ndi ng'anjo yamagetsi ku Liaoyang.Mu 1989, chitsulo chochepa cha aluminium-boron chinapangidwa ndi njira ya ng'anjo yamagetsi.
Nthawi yotumiza: Nov-17-2023