- Narkewa
Ya kamata a narke babban karfen karfe ta hanyar amfani da tanderun lantarki, tare da tacewa a waje da tanderun da kuma zubar da ruwa.
2. Yin jabu
Ya kamata a ƙirƙira babban shinge kai tsaye daga ingots na ƙarfe.Ya kamata a kiyaye daidaitawa tsakanin axis na babban shaft da tsakiyar layi na ingot kamar yadda zai yiwu.Yakamata a samar da isassun alawus na kayan aiki a ƙarshen biyun ingot don tabbatar da cewa babban ramin ba shi da ramukan raguwa, rarrabuwar kawuna, ko wasu manyan lahani.Ya kamata a yi ƙirƙira na babban shaft akan kayan aikin ƙirƙira tare da isasshen ƙarfi, kuma ƙimar ƙirƙira ya kamata ya zama mafi girma fiye da 3.5 don tabbatar da cikakkiyar ƙirƙira da ƙirar ƙira.
3.Heat magani Bayan ƙirƙira, babban shaft ya kamata a sha normalizing zafi magani don inganta tsarin da machinability.Ba a yarda da walda na babban shaft ba yayin aiki da ƙirƙira.
4.Chemical abun da ke ciki
Ya kamata mai sayarwa ya gudanar da bincike na narkewa ga kowane nau'i na karfe na ruwa, kuma sakamakon ya kamata ya bi ka'idodin da suka dace.Abubuwan da ake buƙata don abun ciki na hydrogen, oxygen, da abun ciki na nitrogen (jari mai yawa) a cikin ƙarfe sune kamar haka: abun ciki na hydrogen wanda bai wuce 2.0X10-6 ba, abun ciki na oxygen bai wuce 3.0X10-5 ba, da abun ciki na nitrogen bai wuce 1.0X10-4 ba.Lokacin da akwai buƙatu na musamman daga mai siye, mai siyarwa ya kamata ya gudanar da bincike na samfuran gamayya na babban shaft, kuma takamaiman buƙatu ya kamata a ƙayyade a cikin kwangila ko tsari.Ana ba da izini ga sabani tsakanin iyakoki masu izini don ƙididdige samfurin da aka gama idan an ayyana su ta hanyar ƙa'idodi masu dacewa.
5.Mechanical Properties
Sai dai in an ƙayyade ta mai amfani, kayan aikin injiniya na babban shaft ya kamata ya dace da buƙatun da suka dace.Yanayin gwajin tasirin Charpy don babban shaft 42CrMoA shine -30 ° C, yayin da babban shaft na 34CrNiMoA, shine -40°C.Ya kamata a tabbatar da shaƙar ƙarfin tasirin Charpy bisa ma'aunin lissafi na samfurori guda uku, yana barin samfur ɗaya ya sami sakamakon gwaji ƙasa da ƙayyadadden ƙimar, amma ba ƙasa da 70% na ƙayyadadden ƙimar ba.
6.Tauri
Ya kamata a duba daidaito na taurin bayan aikin zafi mai zafi na babban shaft.Bambanci a cikin taurin kan saman babban shaft ɗaya bai kamata ya wuce 30HBW ba.
7.Balala gwaji Janar Bukatun
Babban shaft bai kamata ya kasance yana da lahani irin su tsagewa, fararen fata, ramukan raguwa, nadawa, rarrabuwa mai tsanani, ko tarawar abubuwan da ba na ƙarfe ba waɗanda ke shafar aikin sa da ingancin saman.Don manyan ramukan da ke da ramuka na tsakiya, ya kamata a bincika saman ciki na ramin, wanda ya kamata ya kasance mai tsabta kuma ba tare da tabo ba, spalling thermal, tsatsa, gutsuttsura kayan aiki, alamomin niƙa, tarkace, ko layi na karkace.Ya kamata a sami sauye-sauye masu laushi tsakanin diamita daban-daban ba tare da kusurwoyi masu kaifi ko gefuna ba.Bayan quenching da tempering zafi magani da kuma m juya na surface, babban shaft ya kamata sha 100% ultrasonic flaw ganewa.Bayan daidaitaccen machining saman saman babban shaft ɗin, yakamata a gudanar da binciken ƙwayar maganadisu akan gabaɗayan saman saman da duka fuskokin ƙarshen.
8. Girman hatsi
Matsakaicin girman hatsi na babban shaft bayan quenching da tempering ya kamata ya zama mafi girma ko daidai da maki 6.0.
Lokacin aikawa: Oktoba-09-2023
