Babban calibre seamless karfe bututu babban samar da tsari ne zafi madaidaiciya babban calibre seamless karfe bututu da kuma zafi fadada calibre seamless karfe bututu, zafi fadada seamless karfe bututu mafi girma bayani dalla-dalla ne zafi layi 325mm * 1220mm mafi kauri ne 120mm, zafi fadada seamless karfe bututu iya samar da non-kasa misali size, zafi fadada seamless bututu ne ko da yaushe muna cewa zafi fadada bututu, yawa kwatanta low amma karfi shrinkage karfe bututu don sloping madaidaiciya hanyar ko jawo hanyar fad A cikin ɗan gajeren lokaci don karfe bututun thicken, za a iya samar da non-misali, musamman nau'ikan seamless bututun, da kuma low farashi, samar da inganci mai girma, shi ne halin yanzu ci gaban yanayin a fannin duniya madaidaiciya bututun.

Babban calibre seamless karfe bututu ta sanyi ja, sanyi madaidaiciya da sauran sanyi aiki karfe, ba tare da wani zafi magani da kai tsaye isar da jihar, da ake kira sanyi ja ko sanyi madaidaiciya jihar. Idan aka kwatanta da zafi madaidaiciya (forging) jihar, sanyi ja (madaidaiciya) jihar karfe girman daidaito high, surface inganci mai kyau, surface roughness low, da kuma high mechanical kaddarorin, saboda sanyi ja (madaidaiciya) jihar isar da karfe surface ba oxide fata rufe, da kuma akwai babban ciki damuwa, sosai m lalata ko tsagi, saboda haka sanyi ja (madaidaiciya) jihar karfe, da marufi, ajiya duk suna da tsananin bukatun, gabaɗaya dole ne a kiyaye a cikin ajiya, kuma ya kamata a kula da zafi da zafi a cikin ajiya

Babban calibre seamless karfe bututun karfe bayan zafi madaidaiciya ko forging ba shi da musamman zafi magani, sanyaya bayan kai tsaye isar, da ake kira zafi madaidaiciya ko zafi forging jihar, zafi madaidaiciya (forging) ƙarshen zafi ne gabaɗaya 800 ~ 900 ℃, bayan haka gabaɗaya a cikin iska da halitta sanyaya, don haka zafi madaidaiciya (forging) jihar daidai da m wuta magani.

Bambanci shine saboda zafi Rolling (Forging) ƙarshen zafin jiki yana da high da low, ba kamar kyakkyawan wuta dumama zafin jiki sarrafawa tsanani, saboda haka karfe tsari da kuma aiki da canji fiye da kyakkyawan wuta. A halin yanzu da yawa karfe kamfanoni amfani da sarrafa madaidaiciya, saboda karfe madaidaiciya zafin jiki iko ne sosai tsauri, da kuma daukar tilasta sanyaya matakai bayan karfe madaidaiciya, saboda haka karfe hatsi refinement, isar da karfe yana da babban m mechanical halaye. Babu karkata sarrafawa sanyi zafi madaidaiciya bar fiye da yau da kullun zafi madaidaiciya bar aiki mafi kyau ne wannan gaskiya, zafi madaidaiciya (forging) jihar isar da karfe, saboda farfajiyar rufe da wani layer na baƙin ƙarfe oxide fata, saboda haka yana da wani lalacewa juriya, ajiya jigilar ajiya bukatun ba kamar sanyi ja (madaidaiciya) jihar isar da karfe kamar yadda tsanani, babban matsakaicin karfe, matsakaicin kauri karfe farantin za a iya adana a bude sararin samaniya ko bayan Toma rufi