Akwai nau'ikan fayilolin karfe da yawa, gami da fayilolin fitter, fayilolin gani, fayilolin siffata, fayiloli masu siffa na musamman, fayilolin mai yin agogo, fayilolin masu sa ido na musamman, da fayilolin itace. Hanyoyin gwajin taurin su galibi suna bin ka'idar TS EN ISO 234-2: 1982 Fayilolin Karfe da Rasps - Kashi 2: Halayen Yanke.
Ƙididdiga ta ƙasa da ƙasa ta ƙayyade hanyoyin gwaji guda biyu: Hanyar Rockwell hardness da kuma hanyar taurin Vickers.
1. Don hanyar taurin Rockwell, ana amfani da ma'aunin Rockwell C (HRC) gabaɗaya, kuma buƙatun taurin yawanci yakan wuce 62HRC. Lokacin da taurin ya yi girma, ana iya amfani da sikelin Rockwell A (HRA) don gwaji, kuma ana samun ƙimar taurin ta hanyar juyawa. Taurin hannun fayil (yankin da ke lissafin kashi uku cikin biyar na jimlar jimlar da ta fara daga tip hannun) bazai zama sama da 38HRC ba, kuma taurin fayil ɗin itace ba zai zama ƙasa da 20HRC ba.
2.The Vickers hardness tester kuma za a iya amfani da gwajin, da kuma daidai taurin darajar za a samu ta hanyar tuba bayan gwaji. Vickers taurin ya dace da gwajin fayilolin karfe tare da yadudduka na bakin ciki ko bayan jiyya na saman. Don fayilolin karfe da aka yi da maganin zafin sama ko maganin zafi na sinadarai, za a gwada taurinsu akan miya mai laushi 5 mm zuwa 10 mm nesa da yanke fayil na ƙarshe.
Taurin titin haƙori zai kasance tsakanin 55 HRC da 58 HRC, wanda ya dace don gwaji ta hanyar taurin Vickers. Idan akwai matsayi mai dacewa, za a iya sanya kayan aikin kai tsaye a kan ma'ajin aikin na Vickers hardness tester don gwajin. Koyaya, yawancin kayan aikin ba za a iya auna su kai tsaye ba; a irin waɗannan lokuta, muna buƙatar shirya samfurori na kayan aiki na farko. A samfurin shiri tsari hada da metallographic sabon na'ura, metallographic nika&polishing inji, da kuma metallographic hawa latsa. Sa'an nan kuma, sanya samfuran da aka shirya a kan ma'ajin aikin gwajin taurin Vickers don gwaji.
Ya kamata a lura cewa za a iya yin gwajin gwagwarmayar ƙwaƙwalwar ajiyar fayil ɗin kawai lokacin da aka sarrafa saman don saduwa da yanayin gwaji; Ban da tanadin wannan ma'auni, gwajin taurin fayilolin karfe shima zai bi ka'idodin ISO 6508 da ISO 6507-1.
Lokacin aikawa: Satumba-24-2025
