Ku zo ku koyi game da HSS
Karfe mai saurin gudu (HSS) karfen kayan aiki ne mai tsayin daka, juriya mai tsayi da juriya mai zafi, wanda kuma aka sani da karfen iska ko karfe mai kaifi, ma'ana yana taurare koda lokacin da aka sanyaya a cikin iska yayin kashewa kuma yana da kaifi. Ana kuma kiransa farin karfe.
Ƙarfe mai saurin gudu wani ƙarfe ne mai haɗaɗɗiya mai haɗaɗɗiyar abun da ke ƙunshe da abubuwa masu ƙirƙirar carbide kamar tungsten, molybdenum, chromium, vanadium da cobalt. Jimlar adadin abubuwan haɗin gwiwa ya kai kusan 10 zuwa 25%. Yana iya kula da babban taurin a karkashin zafi mai zafi (kimanin 500 ℃) a cikin babban saurin yankan, HRC na iya zama sama da 60. Wannan shine mafi mahimmancin halayen HSS - ja taurin. Kuma carbon kayan aiki karfe ta quenching da low zafin jiki tempering, a dakin zafin jiki, ko da yake akwai wani sosai high taurin, amma a lokacin da zafin jiki ne mafi girma fiye da 200 ℃, da taurin zai sauke sharply, a cikin 500 ℃ taurin ya ragu zuwa irin wannan mataki tare da. da annealed jihar, gaba daya rasa ikon yanke karfe, wanda iyakance carbon kayan aiki karfe yankan kayan aikin. Kuma ƙarfe mai sauri saboda kyakkyawan taurin ja, don gyara ƙarancin ƙarancin ƙarfe na kayan aikin carbon.
An fi amfani da ƙarfe mai sauri don kera hadaddun kayan aikin yankan ƙarfe na bakin ciki da tasiri mai jurewa, amma kuma don ƙera manyan ɗakuna masu zafi da sanyi extrusion ya mutu, kamar kayan aikin juyawa, drills, hobs, injin gani ruwan wukake da buƙatun mutuwa.
Ku zo ku koyi game da karfe tungsten
Tungsten karfe (carbide) yana da jerin kyau kwarai Properties kamar high taurin, sa juriya, mafi ƙarfi da taurin, zafi juriya, lalata juriya, da dai sauransu Musamman ta high taurin da sa juriya zama m canzawa ko da a zazzabi na 500 ℃. kuma har yanzu suna da babban taurin a 1000 ℃.
Karfe na Tungsten, wanda babban sinadaransa shine tungsten carbide da cobalt, yana da kashi 99% na dukkan kayan masarufi da kashi 1% na sauran karafa, don haka ake kiransa karfen tungsten, wanda aka fi sani da siminti carbide, kuma ana daukarsa a matsayin hakora na masana'antar zamani.
Tungsten karfe abu ne mai haɗaka wanda ya ƙunshi akalla ƙarfe carbide guda ɗaya. Tungsten carbide, cobalt carbide, niobium carbide, titanium carbide, da tantalum carbide sune abubuwan gama gari na ƙarfe tungsten. Girman hatsi na bangaren carbide (ko lokaci) yawanci yana cikin kewayon 0.2-10 microns, kuma ana haɗa hatsin carbide tare ta amfani da abin ɗaure ƙarfe. Ƙarfe na haɗin gwiwa gabaɗaya ƙarfen rukunin ƙarfe ne, galibi cobalt da nickel. Don haka akwai tungsten-cobalt gami, tungsten-nickel gami da tungsten-titanium-cobalt gami.
Tungsten sinter forming shine a danna foda a cikin billet, sa'an nan kuma a cikin tandering sintering don dumama shi zuwa wani zazzabi (sintering zafin jiki) da kuma ajiye shi na wani lokaci (riƙe lokaci), sa'an nan kuma kwantar da shi don samun tungsten karfe. abu tare da abubuwan da ake buƙata.
①Tungsten da cobalt siminti carbide
Babban bangaren shine tungsten carbide (WC) da kuma binder cobalt (Co). Makin ya ƙunshi "YG" ("hard, cobalt" a cikin Hanyu Pinyin) da yawan matsakaicin abun ciki na cobalt. Misali, YG8, wanda ke nufin matsakaicin WCo = 8% kuma sauran shine tungsten carbide cemented carbide.
②Tungsten, titanium da cobalt ciminti carbide
Babban abubuwan da aka gyara sune tungsten carbide, titanium carbide (TiC) da cobalt. Makin ya ƙunshi "YT" ("hard, titanium" a cikin Hanyu Pinyin) da matsakaicin abun ciki na titanium carbide. Misali, YT15, yana nufin matsakaicin TiC=15%, sauran shine tungsten carbide da cobalt abun ciki na tungsten titanium cobalt carbide.
Tungsten-titanium-tantalum (niobium) carbide
Babban abubuwan da aka gyara sune tungsten carbide, titanium carbide, tantalum carbide (ko niobium carbide) da cobalt. Irin wannan nau'in carbide kuma ana kiransa carbide na gaba ɗaya ko carbide na duniya. Makin ya ƙunshi "YW" ("hard" da "miliyan" a cikin Hanyu Pinyin) da lambar jeri, kamar YW1.
Tungsten karfe yana da jerin kyawawan kaddarorin irin su high taurin, sa juriya, mafi kyawun ƙarfi da tauri, juriya mai zafi, juriya na lalata, da sauransu. high taurin a 1000 ℃. An yi amfani da carbide da aka yi amfani da shi sosai a matsayin kayan aiki, irin su kayan aikin juyawa, kayan aikin milling, drills, kayan aiki masu ban sha'awa, da dai sauransu. Gudun saurin sabon carbide yana daidai da daruruwan sau na carbon karfe.
Lokacin aikawa: Fabrairu-21-2023
