Sintering vuto la ramming material kwa ng’anjo yapakati pafupipafupi

Ubwino wa ramming zakuthupi wapakati pafupipafupi ng’anjo umakhudza mwachindunji smelting dzuwa. Khoma labwino la ng’anjo limatha kusungunuka nthawi 600. Choyipa kwambiri ndi kutenthetsa kopitilira 100, ndipo ngakhale kutentha kwambiri kumayenera kulumikizidwanso. Kugogoda pafupipafupi pakhoma la ng’anjo sikumangokhudza momwe ntchitoyo ikuyendera, komanso kumawononga ndalama pakuluka. Zotsatirazi ndi njira yolondola yopangira knotting kuchokera kwa wopanga zida zomangira zowuma. …

1. Udindo wa sensa ya kutentha

Mu ntchito ya sintering, kuwongolera kutentha kwathunthu ndikofunikira kwambiri. Kuti timvetse bwino kutentha kwa ng’anjo, tidzagwirizanitsa mfundo zoyezera kutentha kwa 2-3 pansi ndi pakati pasadakhale, ndikuchita ndondomeko yathu ya sintering malinga ndi kutentha komwe kwapezeka.

2. Kuwonjezera kwa mtengo woyamba wa chiwongoladzanja cha khoma la ng’anjo ya sintering

Pakuti mtanda woyamba wa mlandu pamaso ndondomeko sintering, tiyenera kupereka patsogolo mankhwala zikuchokera zinthu zake, chifukwa mfundo yaikulu ya quartz mchenga ng’anjo khoma akalowa ndi silicon okusayidi, ndi kusanthula thermodynamics, C ndi Si ndi A. chiŵerengero choyenera chimafunika pa kutentha kwina. Pamene kutentha kwachitsulo chosungunula kumakhala kokwera kwambiri ndipo C zomwe zili ndi C ndizowonjezereka, Si zomwe zili muchitsulo chosungunula ziyenera kukhala zazikulu, chifukwa timafunikira madigiri a 1580-1600 panthawi ya sintering ya khoma la ng’anjo Pa nthawi yogwira ntchito, ngati chitsulo chosungunula chili ndi C wokhutira ndipo zomwe Si sizikufika pamlingo wofunikira, chitsulo chosungunula chidzafulumizitsa kuchotsa silicon ku ng’anjo ya khoma la ng’anjo kuti igwirizane ndi chiŵerengero ichi, zomwe zimachititsa kuti khoma la ng’anjo likuphwanyidwa msanga ndi kupatulira kumakhudza. moyo wake wautumiki. Komanso, ngati zomwe zili mu C ndi Si mu gulu lathu loyamba la zida za ramming zili zotsika, kutentha kwakukulu kumapangitsa kuchuluka kwa iron oxide ndi manganese oxide, ndipo ma oxides awa amalumikizana ndi khoma lathu la ng’anjo. Silicon dioxide pamwamba imachita kupanga chitsulo silicate ndi manganese silicate, ndipo mfundo zosungunuka za zinthu ziwirizi zili pansi pa 1350 ℃, komanso zimapangitsa kuti khoma lathu la ng’anjo kukhala lochepa thupi lisanakwane ndikuchepetsa moyo wautumiki. …

Poganizira mfundo ziwiri zomwe zili pamwambazi, ina ndikuganiziranso kuchuluka kwa zinthu zomwe zawonjezeredwa. Njira yonse yosungunuka ya ng’anjo yathu yamagetsi ndi yakuti mphamvu yamagetsi imasandulika kukhala mphamvu ya maginito kupyolera mu koyilo, ndiyeno mphamvu ya maginito imagwira ntchito ndi chitsulo chachitsulo kuti chisinthe kukhala mphamvu yamagetsi, ndiyeno kuchokera ku mphamvu yamagetsi kupita ku mphamvu yamagetsi. A kutembenuka kwa kutentha mphamvu, chifukwa crucible ndi chitsulo nkhungu crucible pamene ng’anjo ndi ng’anjo, ngati kudyetsa danga mkati ng’anjo ndi lotayirira, gawo crucible adzakhala over-zinachita ndi maginito, kuchititsa Kutentha kukhala mofulumira kwambiri, kuchititsa mapindikidwe ndi kuphulika mkati (gawolo limakhudzidwanso ndi makulidwe a nkhungu ya crucible. Panthawiyi, mchenga wa quartz wa khoma la ng’anjo sunayambe kusungunuka ndi kukhazikika, ndipo zinthu zowonongeka zidzadzaza malo opunduka a nkhungu, chifukwa mu kuchepa kachulukidwe wa ng’anjo khoma akalowa zakuthupi ndi zimakhudza moyo wake utumiki.