Hanyar narke karfe da yatsa a cikin tanderun narkewa

Before the induction furnace is charged, the residue in the furnace should be removed, and the damage of the furnace lining should be checked. The severely damaged parts have become black due to rapid cooling and should be repaired. The grain size of the repairing material should be slightly smaller than that of the knotted material, and the binder used should be slightly more. Large-scale furnaces that are severely damaged can be hoisted into the furnace iron mold to fill in knots.

Tun da zafin wutar tanderun shigar da shi yana raguwa da sauri bayan bugawa, yakamata a yi caji da sauri kuma a cika shi da ganga gwargwadon yiwuwa. Don hanzarta narkewa, ya kamata a rarraba kayan da kyau bisa ga rarraba zafin jiki a cikin tanderun. Ana nuna rarraba zafin jiki a cikin tanderun ƙaddamarwa a cikin hoto 4-25. Saboda tasirin fata na halin yanzu, yanayin da ke kewaye da ginshiƙi na kayan abu (yanki na I) kusa da bango na volute shine babban yanayin zafi.

Ƙasa da tsakiya (I, TT zone) suna da ƙarancin ƙarancin zafi, wanda shine yankin zafin jiki mafi girma, kuma na sama (IV zone) yana da ƙarancin ƙarfin maganadisu da babban hasara mai zafi, wanda shine ƙananan zafin jiki.

Don samar da slag a gaba, 1% na kayan slag ta nauyi za a iya ƙara zuwa kasan tanderun kafin a yi caji, ana ƙara lemun tsami da fluorite a cikin tanderun alkaline, kuma an ƙara cullet gilashin a cikin tanderun acid.

A farkon narkewa, saboda inductance da capacitance a kan layi ba za a iya daidaita su da sauri da kuma yadda ya kamata ba, halin yanzu ba shi da kwanciyar hankali, don haka za’a iya ba da shi tare da ƙananan wuta a cikin ɗan gajeren lokaci. Da zarar halin yanzu ya tabbata, ya kamata a canza shi zuwa cikakkiyar watsawa. A lokacin aikin narkewa, ya kamata a daidaita capacitor akai-akai don kiyaye kayan aikin lantarki tare da babban ƙarfin wuta. Bayan da cajin ya narke gaba ɗaya, narkakken ƙarfe yana da zafi sosai zuwa wani matsayi, sa’an nan kuma an rage ikon shigar da shi bisa ga bukatun narkewa.

Ya kamata a sarrafa lokacin narkewa daidai. Idan lokacin narkewa ya yi tsayi sosai, zai haifar da matsaloli a zaɓin ƙarfin lantarki da ƙarfin aiki. Idan ya yi tsayi da yawa, zai ƙara asarar zafi mara amfani. Tufafin da ba daidai ba ko tsatsa mai yawa a cikin kayan tanderun zai haifar da al’amuran “gadowa”, wanda ya kamata a magance shi cikin lokaci. “Bridge” na hana abin da ba a narke a bangaren sama daga fadawa cikin narkakkar karfen, da sanya yuhua, da zafi da zafi a kasan narkakkar din na iya lalata rufin tanderu cikin sauki, sannan kuma hakan zai sa narkakkar din ya sha mai yawa. na gas.

Saboda motsin wutar lantarki, tsakiyar narkakkar karfen yana kumbura, kuma slag sau da yawa yana gudana zuwa gefen crucible kuma yana manne da bangon tanderu. Sabili da haka, ya kamata a ci gaba da ƙara slag bisa ga yanayin tanderun yayin aikin narkewa.