Bolt yi sa, wato aron kusa yi sa ga karfe tsarin dangane, an raba fiye da 10 maki, kamar 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, etc.Bolt yi sa lakabin kunshi na sassa biyu, waɗanda bi da bi suna wakiltar ƙimar ƙarfin juzu'i na ƙima da ƙimar ƙarfin lanƙwasawa na kayan amo.
Ma'anar ma'anar aikin bolt shine ma'auni na duniya gabaɗaya, ƙwanƙwasa nau'in wasan kwaikwayo iri ɗaya, ba tare da la'akari da bambancin kayan sa da asalinsa ba, aikin sa iri ɗaya ne, ƙira na iya zaɓar darajar aikin kawai.
Ƙarfin ƙarfin 8.8 da girman 10.9 yana nufin matakin damuwa na shearing na angwaye shine 8.8 GPa da 10.9 GPa 8.8 mara kyau na ƙarfin ƙarfin 800 n / 640 n ya kasance mafi ƙarancin yawan amfanin ƙasa ƙarfin kusoshi / gabaɗaya an bayyana a cikin ƙarfin "XY", X * 100 = Tener Tenerarfafa ƙarfi, X * 100 * (y / 10) Ƙarfin ƙwanƙwasa na bolt shine: 400 mpa. Ƙarfin Haɓaka: 400*8/10=320MPa.Wani kuma: bakin karfe bolts yawanci ana lakafta su A4-70, bayyanar A2-70, ma'ana in ba haka ba a bayyana ma'auni: tsawon ma'auni naúrar. a duniya a yau akwai biyu main iri, daya ga tsarin awo tsarin, da ma'auni a naúrar ne mita (m), santimita (cm), mm (mm), da dai sauransu, a Turai, Sin da Japan da kuma sauran kudu maso gabashin Asia amfani ne ƙari, wani kuma Ingilishi ne, sashin aunawa galibi don inci ne (inch), ana amfani da shi sosai a cikin Amurka, Burtaniya da sauran Turai da A.kasashen Amurka.1.Ma'aunin tsarin awo: 1m = 100 cm = 1000 mm2, ma'aunin tsarin Ingilishi: (8) 1 inch = 8 ints 1 inch = 25.4 mm
Bolts da aka yi amfani da su don haɗin gine-ginen ƙarfe suna da fiye da maki 10, ciki har da 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9 da 12.9. Bolt yi sa lakabin ya ƙunshi sassa biyu, wanda bi da bi wakiltar ƙimar ƙarfin ƙarfi mara ƙarfi da ƙima. lankwasawa ƙarfi rabo na abin rufewa.Misali: kusoshi tare da aikin rating 4.6, wanda ke nufin:
1. Ƙarfin ƙaƙƙarfan ƙarancin ƙima na kayan kwalliya ya kai 400MPa;
2. Ƙarfin lanƙwasawa na kayan abu na ƙwanƙwasa shine 0.6;
3. Ƙarfin ƙididdiga na ƙididdiga na kayan abu ya kai 400 × 0.6 = 240MPa aji
Matsayin aiki na 10.9 mai ƙarfi mai ƙarfi, kayan sa bayan jiyya mai zafi, na iya cimma:
1. Ƙarfin ƙarancin ƙima na kayan kwalliya ya kai 1000MPa;
2. Ƙarfin lanƙwasawa na kayan ƙwanƙwasa shine 0.9;
3. Ƙarfin ƙididdiga na ƙididdiga na kayan abu ya kai 1000 × 0.9 = 900MPa class
Lokacin aikawa: Maris 31-2019