GB/T9948bututu maras sumul don fasa man fetur bututu ne da ya dace da bututun tanderu, masu musayar zafi da bututun mai a matatun mai.High quality-carbon tsarin karfe, gami tsarin karfe da bakin zafi resistant karfe high-matsi sumul m bututu ana amfani da su tsirar tururi tukunyar jirgi bututu na high matsa lamba da kuma sama.Wadannan bututun tukunyar jirgi suna aiki a ƙarƙashin matsanancin zafin jiki da matsa lamba, kuma bututun suna fuskantar hayaƙi mai zafi.Oxidation da lalata kuma za su faru a ƙarƙashin aikin gas da tururin ruwa.Sabili da haka, ana buƙatar bututun ƙarfe don samun ƙarfi mai ɗorewa, juriya mai ƙarfi, da kwanciyar hankali mai kyau na ƙungiya.Baya ga tabbatar da abubuwan da ke tattare da sinadarai da kaddarorin injina, bututun tukunyar jirgi mai matsa lamba dole ne su gudanar da gwajin matsa lamba na ruwa daya bayan daya, gami da gwaje-gwajen fadadawa da lallashi.Ana isar da bututu mara ƙarfi mai ƙarfi a cikin yanayin zafi mai zafi.
Hanyoyin fasa bututun mai da hanyoyin kera:

① Gabaɗaya, zafin sabis na bututun ƙarfe mara nauyi yana ƙasa da 450 ° C.Bututun cikin gida an fi yin su ne da No. 10, No. 20,12CrMo, 15CrMo, 12CrlMo, 12CrlMoV, 12Cr5MoI, 12Cr9MoI, zafi birgima ko bututu mai sanyi.

② GB9948 daidaitattun bututun ƙarfe marasa ƙarfi galibi ana fallasa su zuwa yanayin zafi da yanayin matsa lamba lokacin amfani da su.Bututun za su yi oxidize kuma su lalata ƙarƙashin aikin iskar gas mai zafi mai zafi da tururin ruwa.Ana buƙatar bututun ƙarfe don samun ƙarfi mai ɗorewa, babban juriya ga oxidation da lalata, da kwanciyar hankali mai kyau.

amfani:

① Kullum, sumul karfe bututu suna yafi amfani da su sa ruwa bango bututu, tafasasshen ruwa bututu, superheated tururi bututu, superheated tururi bututu for locomotive tukunyar jirgi, manya da kanana hayaki bututu da baka bulo bututu, da dai sauransu.

②GB9948 bututun karfe maras sumul ana amfani da shi ne musamman don kera bututu masu zafi, bututun reheater, bututun jagorar iska, manyan bututun tururi, da dai sauransu don matsa lamba mai ƙarfi da matsananciyar matsin lamba.

GB9948 daidaitattun bututun ƙarfe maras sumul sun kasu zuwa bututun tukunyar jirgi na gabaɗaya da bututun tukunyar jirgi mai ƙarfi gwargwadon aikinsu na zafin jiki.Ko manyan bututun tukunyar jirgi ko bututun tukunyar jirgi mai matsa lamba, ana iya raba su zuwa bututun ƙarfe daban-daban gwargwadon buƙatun amfaninsu daban-daban.
GB / T9948 m karfe bututu, m diamita 10 ~ 426mm, bango kauri 1.5 ~ 26mm.Diamita na waje da kaurin bangon bututun tururi mai zafi, manyan bututun hayaki, ƙananan bututun hayaki da bututun bulo na baka da ake amfani da su a cikin tukunyar jirgi.

Ingantacciyar bayyanar: Ba a yarda da fasa, folds, rolls, scabs, delamination da layin gashi akan saman ciki da waje na bututun ƙarfe.Ya kamata a cire waɗannan lahani gaba ɗaya.Zurfin tsaftacewa ba zai wuce mummunan karkatar da kauri na bango ba, kuma ainihin kauri na bango a wurin tsaftacewa ba zai zama ƙasa da ƙaƙƙarfan kaurin bangon da aka yarda ba.