A cikin tsari na narkewa, saboda rashin daidaituwa ko caji da wuce kima decarbonization da wasu dalilai, wani lokacin abun ciki na carbon a cikin karfe ko ƙarfe bai cika buƙatun da ake tsammani ba, to ya zama dole don carburize ƙarfe ko ƙarfe na ruwa.Babban abubuwan da aka fi amfani da su don carburizing sune foda anthracite, carburized alade iron, electrode foda, man fetur coke foda, kwalta coke, gawayi foda da kuma coke foda.Abubuwan da ake buƙata don carburizer shine cewa mafi girman ƙayyadadden abun ciki na carbon, mafi kyau, kuma ƙananan abubuwan da ke cikin ƙazanta masu cutarwa irin su ash, kwayoyin halitta da sulfur, mafi kyau, don kada ya gurbata karfe.
Narkewar simintin gyare-gyare yana amfani da recarburizer mai inganci bayan gasasshen zafi mai zafi na man coke tare da ƙazantattun ƙazanta, wanda shine mafi mahimmancin hanyar haɗin gwiwa a cikin tsarin carburizing.Ingancin recarburizer yana ƙayyade ingancin ƙarfe na ruwa, kuma yana ƙayyade ko ana iya samun tasirin graphitization.A takaice, rage raguwar baƙin ƙarfe recarburizer yana taka muhimmiyar rawa.
Lokacin da aka narkar da duk abin da aka lalata a cikin tanderun lantarki, an fi son recarburizer wanda aka graphitized, kuma recarburizer wanda aka zana a babban zafin jiki zai iya canza atom ɗin carbon daga tsarin rashin daidaituwa na asali zuwa tsarin takarda, kuma zanen graphite zai iya zama mafi kyau. core na graphite nucleation don inganta graphitization.Saboda haka, ya kamata mu zaɓi recarburizer wanda aka bi da tare da babban zafin jiki graphitization.Saboda babban zafin graphitization jiyya, sulfur abun ciki da aka samar SO2 gas gudun hijira da kuma rage.Sabili da haka, abun ciki na sulfur na recarburizer mai inganci yana da ƙasa sosai, gabaɗaya ƙasa da 0.05%, kuma mafi kyawun ko da ƙasa da 0.03%.A lokaci guda kuma, wannan ma alama ce ta kai tsaye na ko an bi da shi tare da graphitization mai girma da kuma ko graphitization yana da kyau.Idan zaɓaɓɓen recarburizer ba a graphitized a high zafin jiki, da nucleation ikon graphite ya ragu sosai, da kuma graphitization ikon da aka raunana, ko da daidai adadin carbon za a iya samu, amma sakamakon ne gaba daya daban-daban.
Abin da ake kira recarburizer shine don ƙara yawan abun ciki na carbon a cikin ƙarfe na ruwa bayan ƙarawa, don haka ƙayyadadden abun ciki na carbon na recarburizer ba dole ba ne ya zama ƙasa da ƙasa, in ba haka ba don cimma wani abun ciki na carbon, kana buƙatar ƙara ƙarin samfurori fiye da babba. - carbon recarburizer, wanda babu shakka yana ƙara yawan sauran abubuwan da ba su da kyau a cikin carburizer, don haka baƙin ƙarfe ba zai iya samun mafi kyawun dawowa ba.
Ƙananan sulfur, nitrogen da hydrogen abubuwa sune mabuɗin don hana samar da pores na nitrogen a cikin simintin gyare-gyare, don haka ana buƙatar abun ciki na nitrogen na recarburizer ya zama ƙasa mai sauƙi kamar yadda zai yiwu.
Sauran alamomi na recarburizer, irin su yawan danshi, ash, volatiles, ƙananan adadin carbon da aka gyara, mafi girma yawan adadin carbon da aka gyara, don haka yawan adadin carbon da aka gyara, abubuwan da ke cikin waɗannan abubuwa masu cutarwa dole ne kada su kasance. babba.
Domin daban-daban narkewa hanyoyin, tanderu iri da girman narke tanderun, shi ne kuma muhimmanci a zabi da hakkin recarburizer barbashi size, wanda zai iya yadda ya kamata inganta sha kudi da sha kudi na recarburizer a cikin ruwa baƙin ƙarfe, da kuma kauce wa hadawan abu da iskar shaka da kuma oxidation. ƙonawa hasara na carburizer ya haifar da ƙananan girman ƙwayar ƙwayar cuta.Its barbashi size ne mafi kyau: 100kg makera ne kasa da 10mm, 500kg makera ne kasa da 15mm, 1.5 ton makera ne kasa da 20mm, 20 ton tanderun ne kasa da 30mm.A cikin narkewar mai canzawa, lokacin da ake amfani da ƙarfe mai ƙarfi, ana amfani da recarburizer mai ɗauke da ƙazanta kaɗan.Abubuwan da ake buƙata don recarburizer da aka yi amfani da su a cikin manyan busassun ƙarfe masu ƙarfi sune ƙayyadaddun carbon, ƙananan abun ciki na ash, maras tabbas da sulfur, phosphorus, nitrogen da sauran ƙazanta, da bushe, mai tsabta, matsakaicin girman barbashi.Its kafaffen carbon C≥96%, maras tabbas abun ciki ≤1.0%, S≤0.5%, danshi ≤0.5%, barbashi size a 1-5mm.Idan girman barbashin ya yi kyau sosai, yana da sauƙin ƙonewa, idan kuma ya yi ƙanƙara, yana yawo a saman ƙarfen ruwa kuma ba shi da sauƙi a shafe shi da narkakkar karfe.Domin shigar da wutar lantarki girman barbashi a cikin 0.2-6mm, wanda karfe da sauran baki karfe barbashi size a 1.4-9.5mm, high carbon karfe bukatar low nitrogen, barbashi size a 0.5-5mm da sauransu.A takamaiman bukatar bisa ga takamaiman makera irin smelting workpiece irin da sauran cikakkun bayanai takamaiman hukunci da zabi.
Lokacin aikawa: Agusta-25-2023