Masana'antu Karfe Rolling Mills
A karfe niƙana'ura ce da ake amfani da ita don canza siffar da girman kayan karfe ta hanyar matsi, kuma babban jikin injin shine cikakken kayan aiki don jujjuyawa da jujjuya kayan ƙarfe zuwa kayan.Themirgina niƙaita ce babbar na'ura don jujjuya ƙarfe kai tsaye, tana amfani da jujjuyawar jujjuyawar don mirgine billet don yin nakasar filastik ƙarfe bisa ga ƙayyadaddun buƙatun.Rolling shine mafi girman yawan aiki, hanya mafi ƙanƙanci na ƙirar ƙarfe, wanda ya dace da mirgina ɓangaren giciye ɗaya ko canje-canje na lokaci-lokaci a cikin tsiri ko kayan faranti;na musammanmirgina niƙana iya jujjuya sassan injina ko ɓangarorinsu da wasu kayan da ba na ƙarfe ba.
Dangane da yanayin yanayin aiki daban-daban an raba su zuwa injin mirgina mai zafi dainjin mirgina sanyi.
Ana yin birgima mai zafi a ƙarƙashin yanayin dumama sassan da aka yi birgima don rage matsa lamba.
Ana yin mirgina sanyi a cikin dakin da zafin jiki, wanda zai iya sa sassan da aka yi birgima su sami babban sifa da daidaiton girman girman da ƙarewar ƙasa, kuma yana iya haɓaka kayan aikin injiniya na sassan da aka yi birgima.
Bisa ga daban-daban siffofi an raba zuwa profile Mills, tsiri Mills, mashaya dawaya mirgina niƙa, injin bututu, da dai sauransu.
Abubuwan da ke cikin niƙa.
Niƙa ya ƙunshi babban motar, babban motar da babban wurin zama (wurin aiki).Babban motar da ke buƙatar sarrafa saurin gudu lokacin amfani da injin DC, baya buƙatar sarrafa saurin lokacin amfani da aiki tare ko asynchronous (tare da flywheel) AC motor.Babban tushe ya ƙunshi firam, rolls, wurin zama, danna ƙasa da na'urar daidaitawa da sauran ƙungiyoyi.Firam ɗin shine ɗaukar ƙarfin jujjuya abubuwan abubuwan, rufaffiyar firam ɗin yana da mafi inganci, amma buɗe firam ɗin ya fi dacewa don canza rolls.Roll shine sassa na ƙarfe na birgima, jikin nadi don sashin aikin, shugaban shaft don watsawa.Siffar juzu'i na nadi na farantin ana kiransa nau'in roll, kuma tsagi na nadi na bayanin martaba ana kiransa nau'in rami.Ana amfani da na'urar latsa ƙasa don daidaita adadin da aka danna ƙasa.Babban saurin tsiri kauri kauri kamun kai yawanci ana yin shi ta na'urar matsa lamba na hydraulic.Ana amfani da na'urar daidaitawa don kawar da tasirin sharewa a cikin latsa saukar da sukurori, da sauransu, don guje wa tasiri lokacin lodi.Babban toshe na tsiri kuma an sanye shi da na'urar na'ura mai lankwasa ruwa don amfani da ƙarin lokacin lanƙwasawa a cikin wuyan nadi da ƙarin jujjuyawar jikin nadi, don sarrafa kauri na gefen tsiri da samun mafi kyawun farantin karfe.
Karfe mirgina tsari.
Tsarin samarwa gabaɗaya na akarfe niƙashi ne: tsarin gaba ɗaya shine: tsarin lodawa –dumama tanderu- Na'ura mai jujjuyawa - naúrar mirgina - matsakaicin mirgina naúrar - naúrar gamawa - juzu'i - akangado mai sanyibirki -gado mai sanyi- gama shear ko gani - gamawa da na'urar baling.Kammala na'urar bisa ga daban-daban kayayyakin zai zama daban-daban, high waya don samun na'urar tofi a cikin coil tashar, sanyaya line, baling inji, da dai sauransu, musamman karfe bukatar chamfering, nika, gano aibi da sauran tsari kayan aiki.
