Ⅰ-Menene Cr12MoV Cold Working Die Steel
Karfe mai aiki da sanyi na Cr12MoV wanda zhongo ke samarwa yana cikin rukunin ƙarfe mai jure lalacewa mai ƙarfi, wanda ke da juriya ga lalacewa mai yawa, tauri, nakasa mai yawa, kwanciyar hankali mai zafi, ƙarfin lanƙwasa mai yawa, da sauran halaye. Yana na biyu bayan ƙarfe mai sauri kuma abu ne mai mahimmanci don yin tambari, sanyaya kai, da sauran kayayyaki. Karfe mai Cr12MoV ƙarfe ne na carbon molybdenum ledeburite tare da ƙarancin abun ciki na carbon fiye da ƙarfe Crl2. Ana ƙara Molybdenum da vanadium don inganta aikin aiki mai zafi, tauri da rarraba carbide na ƙarfe. Karfe mai Cr12MoV yana da ƙarancin abun ciki na carbon fiye da ƙarfe mai Cr12. Ƙara sabbin abubuwan ƙarfe yana inganta abin da ke faruwa na carbide mara daidaituwa. Bugu da ƙari, molybdenum da molybdenum na iya rage rarrabuwar carbide da inganta tauri. Vanadium da vanadium na iya tace hatsi da ƙara tauri, Saboda haka, ƙarfen mold na zhongo's Cr12MoV yana da ƙarfin tauri sosai, tare da giciye-sashe ƙasa da 400mm wanda za a iya kashe shi gaba ɗaya, kuma har yanzu yana iya kiyaye kyakkyawan tauri da juriyar sawa a 300-400 ℃. Bugu da ƙari, ƙarfen mold na zhongo's Cr12MoV yana da ƙarfi mafi kyau fiye da sauran kayan da suke da matsayi iri ɗaya a kasuwa gabaɗaya, kuma yuwuwar canjin girma yayin kashewa yana raguwa sosai. Saboda haka, juriyar sa mai yawa da kyawawan halayen injiniya masu kyau suna sa ƙarfen mold na Jinbaicheng's Cr12MoV ya fi dacewa da ƙera mold daban-daban tare da babban sashe na giciye, siffa mai rikitarwa, da juriya ga manyan tasirin, da kuma kayan aikin tambari na sanyi daban-daban a ƙarƙashin yanayi mai wahala na aiki, kamar injinan huda, injinan yankewa, injinan birgima, da sauransu.
Ⅱ-Jagorar Aikace-aikacen Cr12MoV Cold Working Die Steel
① Ana iya amfani da Cr12MoV don yin siffofi masu rikitarwa na convex, concave, da kuma saka tubalan don yin naushi tare da kauri fiye da 3mm. Ana ba da shawarar a sami tauri na 58 ~ 62HRC lokacin yin molds convex da kuma 60 ~ 64HRC lokacin yin molds concave.
② Domin samar da nau'ikan ...
③ Don samar da molds masu jure wa lalacewa a cikin molds masu zurfi, ana ba da shawarar a sami tauri na 62 ~ 64HRC.
④ Ana amfani da shi don samar da molds masu convex, molds masu concave, da kuma saka tubalan da ke buƙatar juriya mai yawa da siffofi masu rikitarwa a cikin molds masu lanƙwasa. Ana ba da shawarar a sami tauri na 60-64HRC lokacin yin molds masu convex, da kuma 60-64HRC lokacin yin molds masu concave.
⑤ Don samar da kayan ƙarfe masu sanyi da na ƙarfe masu ƙarfi don sassan aluminum, ana ba da shawarar a sami tauri na 60-62HRC lokacin yin kayan ƙarfe, da kuma 62-64HRC lokacin yin kayan ƙarfe.
⑥ Ana ba da shawarar amfani da tauri na 62 ~ 64HRC don molds masu lanƙwasa da masu lanƙwasa da ake amfani da su don yin molds na jan ƙarfe masu sanyi.
⑦ Ana ba da shawarar cewa a yi amfani da molds masu lanƙwasa da masu lanƙwasa don molds ɗin ƙarfe masu sanyi su sami tauri na 62 ~ 64HRC.
⑧ Farantin ƙarfe na bazara mai kauri na 0.65% ~ 0.80% da ake amfani da su wajen samar da carbon suna da tauri na 37 ~ 42HRC, wanda ke ba da tsawon rai har zuwa zagaye 150000.
⑨ Farantin ƙarfe na bazara tare da ƙaramin taro na 0.65% zuwa 0.80% da ake amfani da su don samar da carbon suna da tauri na 37-42HRC, kuma tare da ƙarin maganin nitriding, tsawon rayuwarsu na iya kaiwa sau 400,000.
Ⅲ-Aiki na Cr12MoV Cold Working Die Steel:
Bayani game da laushin mold extrusion mai sanyi: Kare mold ɗin kuma ka dumama shi da ƙarfe a zafin jiki na 760-780 ℃ na tsawon awanni 10, tare da sanyaya tanda da tauri na 196HBW. Ana iya samun samar da fitar da sanyi cikin sauƙi.
Bayani dalla-dalla game da annealing na yau da kullun na isothermal spheroidizing: 850-870 ℃ × awanni 3-4, sanyaya a cikin tanderu zuwa 740-760 ℃ × awanni 4-5 na maganin isothermal, tare da taurin sanyaya iska ≤ 241HBW, matakin eutectic carbide ≤ 3, mafi kyawun zafin jiki na isothermal 740-76o ℃, da lokaci ≥ awanni 4-5.
Bayani dalla-dalla game da annealing na spheroidizing: (860 ± 10) ℃ × awanni 2-4, sanyaya tanderu a saurin sanyaya 30 ℃/awa, (740 ± 10) ° C x awanni 4-6, a hankali a sanyaya zuwa 500-600 ℃ tare da tanderu, sanyaya iska bayan fitarwa, tauri 207-255HBW.
Bayani dalla-dalla game da kashewa da dumamawa: zafin kashewa 1000-1050 ℃, kashewa ko kashewa mai, tauri 260HRC, zafin zafi 160-180, lokacin dumamawa awanni 2, ko zafin zafi 325-375 ° C, dumamawa sau 2-3.
Ƙananan kashewa da ƙarancin dawo da zafin jiki: 950 ℃ -1040 ℃, zafin jiki na dumama yana kusa da 200 ℃, zafin jiki na biyu.
Babban kashewa da kuma babban zafin kashewa: 1050-1100 ℃, zafin zafin rage zafi yana kusa da 520 ℃, zafin rage zafi na biyu. Hanyar taurare ta biyu da ake amfani da ita don rage zafi da kuma sake amfani da ita sosai tana inganta tauri, amma hatsin za su yi girma.
Maganin Crogenic: Karfe na Cr12MoV yana shan maganin cryogenic, wanda zai iya haifar da ultrafine carbide mai warwatse sosai daga martensite da aka kashe, sannan waɗannan ultrafine carbide za a iya canza su zuwa carbide bayan an yi amfani da zafin jiki mai ƙarancin zafi 200 ℃. Martensite ba tare da maganin cryogenic ba kawai yana haifar da ƙaramin adadin carbide a wasu yankuna bayan wuta mai ƙarancin zafi.
Zhongao ya rungumi hanyar maganin zafi mai ƙarancin zafi, wadda ke kiyaye ƙarfin tauri da juriyar lalacewa na ƙarfe Cr12MoV. Matakai uku na maganin zafi mai ƙarancin zafi da ake amfani da su akai-akai, wato ion nitriding, gas nitrocarburizing, da gishirin bath sulfur cyanide co nitriding, suna da juriya mai ƙarfi da mannewa, tare da gishirin bath sulfur cyanide co nitriding shine mafi kyau.
Tsawon rayuwar zane na kayan aikin ƙarfe na bakin ƙarfe na zhongo's Cr12MoV, bayan maganin nitrocarburization na gas, ya kai fiye da guda 30000, wanda ya fi sau 10 fiye da na irin waɗannan molds da aka yi wa magani da quenching da tempering na gargajiya.
Lokacin Saƙo: Mayu-23-2024