Bayanin Bakin Karfe
Ana amfani da ƙarfe mai ɗaukar nauyi don yin ƙwallaye, rollers da zoben ɗamara. Ƙarfe mai ɗaukar nauyi yana da ƙarfi da ƙarfi iri ɗaya, juriya mai ƙarfi da iyaka mai ƙarfi. Abubuwan da ake buƙata don daidaituwar nau'in sinadarai, abun ciki da rarraba abubuwan da ba na ƙarfe ba, da rarraba carbides na ƙarfe mai ɗaukar nauyi suna da tsauri. Yana daya daga cikin mafi stringent maki karfe a duk karfe samar.
A karfe maki na kowa hali karafa ne high carbon chromium hali karfe jerin, kamar GCr15, Gcr15SiMn, da dai sauransu. Bugu da kari, carburized hali karafa, kamar 20CrNi2Mo, 20Cr2Ni4, da dai sauransu, kuma za a iya amfani da bisa daban-daban yanayin aiki, bakin karfe hali, irin su high-karfe bear, da dai sauransu - 9.Cr. kamar Cr4Mo4V, Cr15Mo4V2, da dai sauransu.
Dukiyar jiki
Abubuwan da ake amfani da su na zahiri na ƙarfe mai ɗaukar nauyi sun haɗa da microstructure, daɗaɗɗen Layer, haɗawar da ba ta ƙarfe ba da macrostructure. Gabaɗaya, samfuran ana isar da su ta hanyar jujjuyawar zafi mai zafi da cirewar zane mai sanyi. Za a nuna matsayin bayarwa a cikin kwangilar. Macrostructure na karfe dole ne ya zama mara lahani daga kogon shrinkage, kumfa subcutaneous, farin tabo da ƙananan pore. Matsakaicin tsakiya da porosity na gabaɗaya ba zai wuce digiri na 1.5 ba, kuma rarrabuwa ba zai wuce sa 2. Tsarin da aka rufe na karfe ya kamata a rarraba shi daidai gwargwado. Zurfin decarburization Layer, abubuwan da ba na ƙarfe ba da rashin daidaituwa na carbide za su bi ka'idodin ƙasa masu dacewa.
Abubuwan buƙatun aiki na asali don ɗaukar kayan ƙarfe
1)ƙarfin gajiya mai girma
2)babban taurin bayan magani mai zafi ko taurin da zai iya biyan buƙatun don ɗaukar aikin sabis
3)high lalacewa juriya, low gogayya coefficient
4)high na roba iyaka
5)tasiri mai kyau tauri da raunin karaya
6)kyakkyawan yanayin kwanciyar hankali
7)kyakkyawan aikin rigakafin tsatsa
8) Kyakkyawan aikin sanyi da zafi mai zafi.
