Menene HSS?

Karfe mai sauri (HSS) ya kasance ma'auni na kayan aikin yankan karfe tun shekarun 1830.

Karfe mai sauri (HSS) karfe ne na kayan aiki tare da babban taurin, juriya mai girma, da juriya mai zafi. Ana kuma kiransa ƙarfe mai kaifi, wanda ke nufin yana iya taurare kuma ya kasance mai kaifi koda lokacin da aka sanyaya a cikin iska yayin kashewa.

Karfe mai sauri ya ƙunshi kaso mai yawa na carbon da sauran karafa. La'akari da cewa abun da ke ciki shine mafi mahimmancin halayen ƙarfe mai sauri, HSS ya ƙunshi tungsten, molybdenum, chromium, vanadium, cobalt, da sauran abubuwan da ke samar da carbide a cikin adadin kusan 10 zuwa 25% na abubuwan haɗin gwiwa. Waɗannan abubuwan haɗin gwiwar suna ba da HSS tare da yankan gargajiya da kaddarorin inji kamar juriya. A cikin yanayin da aka kashe, baƙin ƙarfe, chromium, s    ome tungsten, da babban adadin carbon a cikin ƙarfe mai sauri siffan siffan carbide mai tsananin ƙarfi wanda zai iya inganta juriyar sawar ƙarfe.

Bugu da ƙari, HSS an san yana da zafi mai zafi. Wannan saboda tungsten yana narkar da shi a cikin matrix. Ƙaƙƙarfan zafi na ƙarfe mai sauri zai iya kaiwa digiri 650. Tungsten, molybdenum, chromium, vanadium, cobalt, da sauran carbides sun ƙunshi abubuwan da ke taimakawa wajen kula da tsayin daka a yankan zafi mai zafi (kimanin 500 ° C).

Kwatanta HSS zuwa karafa na kayan aiki na carbon zai iya sanin waɗanda suke da taurin mafi girma a zafin daki bayan an kashe su da zafi a ƙananan yanayin zafi. Amma lokacin da zafin jiki ya fi 200 ° C, taurin karfen kayan aikin carbon zai ragu sosai. Bugu da ƙari, taurin carbon kayan aikin karafa a 500 ° C zai ragu zuwa irin wannan matakin zuwa na annealed jihar, wanda ke nufin cewa ikon yanke karfe ya ɓace gaba daya. Wannan al'amari yana iyakance amfani da karafa na kayan aikin carbon a yankan kayan aikin. Ƙarfe mai saurin gudu ya haɗa da maɓalli na maɓalli na kayan aiki na kayan aiki na carbon saboda tsananin zafi mai kyau.

Carbide da aka yi da siminti ya fi HSS a mafi yawan lokuta. Idan kuna sha'awar samfuran carbide tungsten kuma kuna son ƙarin bayani da cikakkun bayanai, zaku iya tuntuɓar mu ta waya ko wasiƙa a hagu ko Aika wasiƙar Amurka a kasan shafin. Muna jiran binciken ku.