Ⅰ- Menene Cr12MoV Cold Working Die Karfe
The Cr12MoV sanyi aiki mutu karfe samar da zhongao nasa ne a cikin category na high lalacewa-resistant micro nakasawa kayan aiki karfe, wanda aka halin high lalacewa juriya, taurin, micro nakasawa, high thermal kwanciyar hankali, high lankwasawa ƙarfi, da sauran kaddarorin.Yana da na biyu kawai ga ƙarfe mai sauri kuma abu ne mai mahimmanci don tambari, taken sanyi, da sauran kayan.Cr12MoV mutu karfe ne carbon molybdenum ledeburite karfe tare da ƙananan abun ciki na carbon fiye da Crl2 karfe.Ana kara molybdenum da vanadium don haɓaka aikin aiki mai zafi, tasiri mai ƙarfi da rarraba carbide na ƙarfe.Cr12MoV mutu karfe yana da ƙananan abun ciki na carbon fiye da Cr12 mutu karfe.Bugu da kari na sabon gami abubuwa inganta sabon abu na m carbide.Bugu da ƙari, molybdenum da molybdenum na iya rage rarrabuwar carbide kuma inganta taurin.Vanadium da vanadium na iya tace hatsi kuma suna ƙara ƙarfi, Saboda haka, ƙarfe na ƙarfe na zhongao's Cr12MoV yana da ƙarfi mai ƙarfi, tare da ɓangaren giciye ƙasa da 400mm wanda za'a iya kashe shi gaba ɗaya, kuma har yanzu yana iya kula da tauri mai kyau kuma yana juriya a 300-400 ℃.Bayan haka, ƙarfen ƙarfe na zhongao's Cr12MoV yana da mafi ƙarfi fiye da sauran kayan da suke da daraja ɗaya a cikin kasuwar gabaɗaya, kuma yuwuwar canjin girma yayin quenching yana raguwa sosai.Saboda haka, da high lalacewa juriya da kuma mai kyau m inji Properties sa Jinbaicheng ta Cr12MoV mold karfe mafi dace da masana'antu daban-daban kyawon tsayuwa tare da manyan giciye-section, hadaddun siffar, da kuma jure babban tasiri, kazalika da daban-daban sanyi stamping kayayyakin aiki, a karkashin nauyi aiki yanayi, kamar. naushi ya mutu, yankan ya mutu, mirgina ya mutu, da sauransu Karfe farantin zurfin zane mutu, madauwari saw, daidaitattun kayan aikin da kayan aunawa, zaren mirgina mutu, da sauransu.
Ⅱ-Taimakon Aikace-aikace na Cr12MoV Cold Working Die Karfe
① Cr12MoV za a iya amfani da su yi hadaddun siffofi na convex, concave, da kuma saka tubalan for punching molds tare da abu kauri> 3mm.Ana bada shawara don samun taurin 58 ~ 62HRC lokacin yin gyare-gyare na convex da 60 ~ 64HRC lokacin yin gyare-gyaren gyare-gyare.
② Don samar da nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i) wanda ke buƙatar juriya mai girma,wanda aka ba da shawarar don samun taurin 60 ~ 62HRC lokacin yin nau'i da 62 ~ 64HRC lokacin yin kullun.
③ Don samar da gyare-gyaren gyare-gyare masu jurewa a cikin zane mai zurfi, ana ba da shawarar samun taurin 62 ~ 64HRC.
④ An yi amfani da shi don samar da gyare-gyaren gyare-gyaren gyare-gyare, gyare-gyaren gyare-gyare, da kuma saka tubalan da ke buƙatar juriya mai girma da kuma hadaddun siffofi a cikin lankwasawa.Ana ba da shawarar a sami taurin 60-64HRC lokacin yin gyare-gyaren gyare-gyare, da 60-64HRC lokacin yin gyare-gyaren gyare-gyare.
Don samar da extrusion sanyi ya mutu kuma ya mutu don sassan aluminum, ana bada shawara don samun taurin 60-62HRC lokacin yin mutuwar, da 62-64HRC lokacin yin mutuwar.
⑥ Ana bada shawara don amfani da taurin 62 ~ 64HRC ga convex da concave molds amfani da yin jan karfe sanyi extrusion molds.
⑦ Ƙaƙƙarfan ƙira da ƙira da aka yi amfani da su don ƙarfe sanyi extrusion molds ana bada shawara don samun taurin 62 ~ 64HRC.
⑧ Spring karfe faranti tare da wani taro juzu'i na 0.65% ~ 0.80% amfani da forming carbon da taurin na 37 ~ 42HRC, samar da wani lifespan na har zuwa 150000 hawan keke.
⑨ Spring karfe faranti tare da wani taro juzu'i na 0.65% to 0.80% amfani da kafa carbon da taurin na 37-42HRC, kuma tare da ƙarin nitriding jiyya, su sabis rayuwa iya isa 400000 sau.
Ⅲ-Tsarin Cr12MoV Cold Work Die Karfe:
Ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙwayar sanyi: Kare da zafi da mold tare da filayen ƙarfe a zazzabi na 760-780 ℃ na 10 hours, tare da sanyaya tanderu da taurin 196HBW.Cold extrusion forming za a iya samu smoothly.
Musammantawa ga talakawa isothermal spheroidizing annealing: 850-870 ℃ × 3-4 hours, sanyaya a cikin tanderun zuwa 740-760 ℃ × 4-5 hours na isothermal jiyya, tare da iska sanyaya taurin ≤ 241HBW, eutectic carbide sa 3 mafi kyau duka. zazzabi 740-76o ℃, da kuma lokaci ≥ 4-5 hours.
Musammantawa don spheroidizing annealing: (860 ± 10) ℃ × 2-4 hours, tanderun sanyaya a wani sanyaya kudi na 30 ℃ / hour, (740 ± 10) ° C x 4-6 hours, sannu a hankali sanyaya zuwa 500-600 ℃ tare da tanderu, sanyaya iska bayan fitarwa, taurin 207-255HBW.
Janar quenching da tempering bayani dalla-dalla: quenching zafin jiki 1000-1050 ℃, man quenching ko quenching, taurin 260HRC, tempering zafin jiki 160-180, tempering lokaci 2 hours, ko tempering zazzabi 325-375 ° C, tempering 2-3 sau.
Low quenching da low koma quenching zazzabi: 950 ℃ -1040 ℃, tempering zafin jiki ne a kusa da 200 ℃, sakandare tempering.
High quenching da high koma quenching zazzabi: 1050-1100 ℃, tempering zafin jiki ne a kusa da 520 ℃, sakandare tempering.Hanyar hardening na biyu da ake amfani da shi don babban quenching da babban sake amfani da su yana inganta taurin, amma hatsi za su yi girma.
Cryogenic magani: Cr12MoV karfe sha cryogenic magani, wanda zai iya hazo sosai tarwatsa ultrafine carbides daga quenched martensite, sa'an nan wadannan ultrafine carbides za a iya canza zuwa carbides bayan 200 ℃ low-zazzabi tempering.Martensite ba tare da maganin cryogenic kawai yana haifar da ƙaramin adadin carbide a wasu yankuna na gida bayan ƙarancin zafin wuta mai kewaye.
zhongao yana ɗaukar hanyar magani mai zafi mai ƙarancin zafin jiki, wanda ke kiyaye babban taurin da juriya na ƙarfe Cr12MoV.Uku da ake amfani da ƙananan zafin jiki na maganin zafin jiki, wato ion nitriding, gas nitrocarburizing, da gishiri wanka sulfur cyanide co nitriding, suna da tasiri mai tasiri da juriya, tare da gishiri wanka sulfur cyanide co nitriding shine mafi kyau.
Rayuwar sabis na zanen ya mutu don kayan aikin bakin karfe na zhongao's Cr12MoV, bayan jiyya na nitrocarburization gas, ya kai guda 30000, wanda ya fi sau 10 fiye da na nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan da aka bi da su tare da quenching na al'ada.
Lokacin aikawa: Mayu-23-2024