Heerka Caalamiga ah ee Tijaabada Adag ee Habka Faylasha Birta: ISO 234-2: 1982 Faylasha Birta iyo Rasps

Waxaa jira noocyo badan oo faylal bir ah, oo ay ku jiraan feylasha fitter, faylasha la arkay, faylalka qaabaynta, faylalka qaabaysan gaarka ah, faylalka saacad-sameeyaha, faylalka saacad-sameeyaha gaarka ah, iyo galalka alwaax. Hababka tijaabinta adkeysigooda inta badan waxay u hoggaansamaan heerka caalamiga ah ee ISO 234-2: 1982 Faylasha Biraha iyo Rasps - Qeybta 2: Astaamaha Goynta

Halbeegga caalamiga ah wuxuu qeexayaa laba hab oo tijaabo ah: Habka qallafsanaanta Rockwell iyo habka adag ee Vickers.

1. Habka qallafsanaanta Rockwell, miisaanka Rockwell C (HRC) ayaa guud ahaan la isticmaalaa, iyo shuruudaha adagaanta ayaa inta badan ka sarreeya 62HRC. Marka adkeysigu uu yara sarreeyo, cabirka Rockwell A (HRA) ayaa sidoo kale loo isticmaali karaa tijaabinta, qiimaha adkaanta waxaa lagu helaa beddelaad. Adkeydka gacan-ku-haynta faylka (aagga xisaabinta shan-meelood saddex meel dhererka laga bilaabo caarada gacanta) waa inaanu ka sarrayn 38HRC, adkaanta faylka alwaaxduna waa inaanu ka yarayn 20HRC.

2. Tijaabada adag ee Vickers sidoo kale waxaa loo isticmaali karaa tijaabinta, iyo qiimaha qalafsanaanta u dhigma waa in lagu helaa beddelaad ka dib baaritaanka. adkaanta Vickers waxay ku habboon tahay tijaabinta faylalka birta ee lakabyada khafiifka ah ama ka dib daaweynta dusha sare. Galalka birta ah ee lagu daaweeyay kulaylka dusha sare ama daawaynta kulaylka kiimikaad, adayggooda waa in lagu tijaabiyaa meel siman oo 5 mm ilaa 10 mm ka fog faylkii ugu dambeeyay ee la gooyay.

Adag ee cidhifka iliggu waa inuu u dhexeeyaa 55 HRC iyo 58 HRC, kaas oo ku habboon in lagu tijaabiyo habka adag ee Vickers. Haddii ay jirto meel ku haboon, workpiece si toos ah loo gelin karaa on workbench ee tijaabiyaha adag Vickers ee imtixaanka. Si kastaba ha ahaatee, inta badan workpieces si toos ah looma qiyaasi karo; xaaladahan oo kale, waxaan u baahan nahay in aan diyaarinno muunado ka mid ah workpieces marka hore. Habka diyaarinta muunada waxa ka mid ah mishiinka goynta biraha, mishiinka wax lagu shiido&mashiinka dhalaalaynta, iyo saxafada dhejinta biraha. Kadibna, saar muunado la diyaariyay dushiisa Vickers hardness tester-ka shaqada ee tijaabinta.

Waa in la ogaadaa in imtixaanka adkaanta ee gacanta faylka la samayn karo oo kaliya marka dusha sare ee la farsameeyo si loo buuxiyo shuruudaha imtixaanka; Marka laga reebo qodobbada heerkan, tijaabada adag ee feylasha birta waa inay sidoo kale u hoggaansamaan shuruudaha ISO 6508 iyo ISO 6507-1.