Akwai nau'ikan fayilolin ƙarfe da yawa, ciki har da fayilolin mai gyara, fayilolin saw, fayilolin siffantawa, fayilolin siffofi na musamman, fayilolin mai gyaran agogo, fayilolin mai gyaran agogo na musamman, da fayilolin katako. Hanyoyin gwajin taurinsu galibi suna bin ƙa'idar ƙasa da ƙasa ta ISO 234-2:1982 Fayilolin Karfe da Rasps - Kashi na 2: Halayen Yankewa.
Ma'aunin ƙasa da ƙasa ya ƙayyade hanyoyi guda biyu na gwaji: hanyar taurin Rockwell da hanyar taurin Vickers.
1. Don hanyar taurin Rockwell, ana amfani da sikelin Rockwell C (HRC) gabaɗaya, kuma buƙatar taurin yawanci ya fi 62HRC girma. Idan taurin ya yi yawa, ana iya amfani da sikelin Rockwell A (HRA) don gwaji, kuma ana samun ƙimar taurin ta hanyar juyawa. Taurin maƙallin fayil (yankin da ya kai kashi uku cikin biyar na jimlar tsawon da ya fara daga ƙarshen maƙallin) ba zai wuce 38HRC ba, kuma taurin fayil ɗin katako ba zai zama ƙasa da 20HRC ba.
2. Ana iya amfani da na'urar gwajin taurin Vickers don gwaji, kuma za a sami ƙimar taurin da ta dace ta hanyar juyawa bayan gwaji. Taurin Vickers ya dace da gwajin fayilolin ƙarfe masu sirara ko bayan maganin saman. Don fayilolin ƙarfe da aka yi wa magani da maganin zafi na saman ko maganin zafi na sinadarai, za a gwada taurinsu a kan santsi mara komai daga 5 mm zuwa 10 mm daga yanke fayil na ƙarshe.
Taurin gefen haƙori zai kasance tsakanin 55 HRC da 58 HRC, wanda ya dace da gwaji ta hanyar Vickers taurin kai. Idan akwai wuri mai dacewa, ana iya sanya kayan aikin kai tsaye a kan teburin aikin gwajin taurin kai na Vickers don gwajin. Duk da haka, yawancin kayan aikin ba za a iya auna su kai tsaye ba; a irin waɗannan yanayi, muna buƙatar shirya samfuran kayan aikin da farko. Tsarin shirya samfurin ya haɗa da injin yanke ƙarfe, injin niƙa da goge ƙarfe, da injin ɗaga ƙarfe. Sannan, sanya samfuran da aka shirya a kan bencin aikin gwajin taurin kai na Vickers don gwaji.
Ya kamata a lura cewa gwajin taurin maƙallin fayil ɗin za a iya yi ne kawai lokacin da aka sarrafa saman don cika sharuɗɗan gwaji; sai dai tanadin wannan ƙa'ida, gwajin taurin fayilolin ƙarfe kuma zai bi tanadin ISO 6508 da ISO 6507-1.
Lokacin Saƙo: Satumba-24-2025
