45# karfen bututu factory tallace-tallace kai tsaye
45# bututun ƙarfe mara nauyi bayan quenching da tempering jiyya yana da kyau m inji Properties kuma ana amfani da ko'ina a daban-daban muhimman tsarin sassa, musamman wadanda connecting sanduna, kusoshi, gears da shafts aiki a karkashin alternating load. Koyaya, taurin saman yana da ƙasa kuma baya jurewa. Za a iya amfani da quenching da tempering + quenching surface don inganta taurin sassa.
Shawarar zafin zazzabi mai zafi: daidaitawa 850, quenching 840, tempering 600.
45 karfe ne high quality carbon tsarin karfe tare da low taurin da sauki yankan. Ana amfani da shi sau da yawa azaman tsari, harbi, jagorar jagora, da sauransu a cikin ƙirar, amma dole ne a bi da shi zafi.
1. 45 karfe ya cancanta idan taurinsa ya fi HRC55 (har zuwa HRC62) bayan quenching da kuma kafin zafin jiki.
Mafi girman taurin aikace-aikace shine HRC55 (high mita quenching hrc58).
2. Ba za a karɓi tsarin kula da zafi na carburizing da quenching don karfe 45 ba.
Yankunan da aka kashe da masu zafin rai suna da ingantattun kaddarorin inji kuma ana amfani da su sosai a sassa daban-daban masu mahimmanci na tsarin, musamman waɗanda ke haɗa sanduna, kusoshi, gears da shafts waɗanda ke aiki ƙarƙashin madaidaicin nauyi. Koyaya, taurin saman yana da ƙasa kuma baya jurewa. Za a iya amfani da quenching da tempering + quenching surface don inganta taurin sassa.
Ana amfani da jiyya na carburizing gabaɗaya don sassa masu nauyi tare da ƙasa mai juriya da tasirin juriya, kuma juriyar sa ya fi quenching da tempering + saman quenching. Abubuwan da ke cikin carbon saman shine 0.8-1.2%, kuma ainihin shine gabaɗaya 0.1-0.25% (0.35% a lokuta na musamman). Bayan jiyya na zafi, farfajiyar na iya samun babban taurin (HRC58-62), ƙananan ƙarfin ƙarfi da juriya mai tasiri.
Idan 45 karfe ne carburized, wuya da gaggautsa martensite zai bayyana a cikin core bayan quenching, wanda zai rasa amfanin carburizing magani. Abubuwan da ke cikin carbon na kayan aiki tare da tsarin carburizing ba su da girma, kuma ƙarfin ƙarfin zai iya kaiwa sosai a 0.30%, wanda ba kasafai bane a aikace. 0.35% ba su taɓa ganin misalai ba, waɗanda aka gabatar kawai a cikin littattafan karatu. Ana iya ɗaukar aiwatar da quenching da tempering + high mita surface quenching, da lalacewa juriya ne dan kadan muni fiye da carburizing.
The shawarar zafi magani tsarin for 45 karfe kayyade a GB / t699-1999 ne 850 ℃ normalizing, 840 ℃ quenching da 600 ℃ tempering, da yawan amfanin ƙasa ƙarfi ne ≥ 355MPa.
Dangane da GB / t699-1999, ƙarfin ƙarfin 45 na ƙarfe shine 600MPa, ƙarfin yawan amfanin ƙasa shine 355MPa, elongation shine 16%, raguwar yanki shine 40%, kuma tasirin tasirin shine 39j. 1, Ayyuka, fasali fasali da fasaha da bukatun shaft sassa
Sassan shaft na ɗaya daga cikin abubuwan da ake yawan ci karo da su a cikin injina. Ana amfani da shi musamman don tallafawa sassan watsawa, watsa juzu'i da ɗaukar nauyi. Sassan shaft sune sassa masu juyawa, wanda tsayinsa ya fi diamita. Gabaɗaya sun ƙunshi saman cylindrical na waje, saman conical, rami na ciki, zaren da madaidaicin fuskar ƙarshen shaft. Dangane da nau'ikan tsari daban-daban, ana iya raba sassan shaft zuwa axis na gani, axis mai tako, axis mara ƙarfi da crankshaft.
Shaft tare da rabo mai ƙasa da 5 ana kiransa ɗan gajeren shaft, kuma shaft tare da rabo mai girma fiye da 20 ana kiransa siriri siriri. Yawancin rassan suna tsakanin su biyun.
Ana goyan bayan shaft ɗin ta hanyar ɗaukar hoto, kuma sashin shaft ɗin da ya dace da ɗaukar hoto ana kiransa jarida. Mujallar ita ce ma'auni na taro na shaft, kuma ana buƙatar daidaito da ingancin saman gabaɗaya don zama babba. Abubuwan buƙatun fasaha gabaɗaya an tsara su bisa ga manyan ayyuka da yanayin aiki na shaft, yawanci gami da abubuwa masu zuwa:
1.Don ƙayyade matsayi na shaft, jarida tare da aikin goyan baya na daidaitattun ƙididdiga yawanci yana buƙatar daidaito mai girma (it5 ~ it7). Gabaɗaya, daidaiton juzu'i na mujallar shaft don haɗa sassan watsawa yana da ƙasa (IT6 ~ it9).
2.Daidaiton Geometric daidaitattun sassan sassa na shaft galibi yana nufin zagaye da cylindricity na jarida, mazugi na waje, ramin taper Morse, da sauransu gabaɗaya, haƙurinsa zai iyakance ga juriyar juzu'i. Don saman madauwari na ciki da na waje tare da madaidaicin buƙatun, za'a yi alama karkacewar izini akan zane.
3.Matsakaicin matsayi na juna daidaitattun daidaiton matsayi na sassan shaft an ƙaddara su ne ta hanyar matsayi da aikin shaft a cikin na'ura. Gabaɗaya, za a tabbatar da buƙatun coaxiality na Jarida na sassan watsawa da aka tattara akan jarida mai goyan baya, in ba haka ba za a shafa daidaiton watsawar sassan watsawa (gears, da sauransu) kuma za a haifar da hayaniya. Don madaidaicin madaidaicin madaidaicin radial, radial runout na sashin mating shaft zuwa jarida mai goyan baya shine gabaɗaya 0.01 ~ 0.03mm, kuma don madaidaicin madaidaicin shafts (kamar manyan shafts), yawanci 0.001 ~ 0.005mm.
4.Matsakaicin saman diamita na shaft wanda ya dace da sassan watsawa shine gabaɗaya ra2.5 ~ 0.63 μ m. Matsakaicin saman diamita na goyan bayan madaidaicin madaidaicin sa shine Ra0.63 ~ 0.16 μm.
1.Blanks na sassan shaft. Dangane da buƙatun amfani, nau'in samarwa, yanayin kayan aiki da tsarin, ana iya zaɓar nau'ikan ɓoyayyiya kamar sanduna da ƙirƙira don sassan shaft. Don shaft tare da ɗan bambanci a diamita na waje, mashaya ya mamaye shi gabaɗaya; Don matakai masu tasowa ko mahimmancin mahimmanci tare da babban bambanci a cikin diamita na waje, ana zaɓar ƙirƙira sau da yawa, wanda ba wai kawai adana kayan aiki ba, yana rage yawan aikin mashin, amma kuma yana inganta kayan aikin injiniya.
Dangane da ma'auni daban-daban na samarwa, hanyoyin ƙirƙira na fanko sun haɗa da ƙirƙira kyauta da mutuƙar ƙirƙira. Ana amfani da ƙirƙira kyauta a kanana da matsakaita masu girma dabam, kuma ana amfani da ƙirƙirar ƙirƙira a cikin yawan jama'a.
2. Materials na shaft sassa shaft sassa za su zaɓi daban-daban kayan bisa ga daban-daban yanayin aiki da kuma amfani da bukatun da kuma dauko daban-daban zafi magani bayani dalla-dalla (kamar quenching da tempering, normalizing, quenching, da dai sauransu) don samun wani ƙarfi, tauri da kuma sa juriya.
45 karfe abu ne na kowa don sassan shaft. Yana da arha. Bayan quenching da tempering (ko normalizing), zai iya samun mafi kyau yankan yi, high ƙarfi da taurin da sauran m inji Properties. A surface taurin bayan quenching iya isa 45 ~ 52hrc.
40Cr da sauran gami tsarin karfe sun dace da sassan shaft tare da daidaiton matsakaici da babban sauri. Bayan quenching, tempering da quenching, irin wannan karfe yana da kyau m inji Properties.
Bearing karfe GCr15 da spring karfe 65Mn, bayan quenching da tempering da surface high-mita quenching, da surface taurin iya isa 50 ~ 58hrc, kuma suna da high gajiya juriya da kyau lalacewa juriya. Za su iya kera madaidaicin igiyoyi.
38crmoaia nitrided karfe za a iya zabar ga sandar madaidaicin kayan aikin inji (kamar grinder yashi axle da daidaita m inji spindle). Bayan quenching da tempering da nitriding surface, wannan karfe ba zai iya samun babban taurin ba kawai, amma kuma kula da mai laushi mai mahimmanci, don haka yana da tasiri mai kyau. Idan aka kwatanta da carburized quenched karfe, yana da halaye na kananan zafi magani nakasawa da kuma mafi girma taurin.
45 karfe ne yadu amfani a inji masana'antu. Wannan karfe yana da kyawawan kaddarorin inji. Duk da haka, wannan shi ne matsakaicin carbon karfe tare da matalauta quenching yi. Karfe 45 na iya taurare har zuwa hrc42 ~ 46. Don haka, idan ana buƙatar taurin saman kuma ana sa ran za a kawo mafi kyawun kayan aikin ƙarfe na 45 #, saman 45 # na ƙarfe yakan yi carburized kuma a kashe shi, don haka. cewa za a iya samun taurin da ake buƙata.
