Ƙimar aikin Bolt

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 juriya 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 kayansa da asalinsa ba, aikin sa iri ɗaya ne, ƙirar za ta iya zaɓar darajar aikin kawai.

Ƙarfin ƙarfin 8.8 da girman 10.9 yana nufin matakin damuwa na shearing na bolt shine 8.8 GPa da 10.9 GPa 8.8 mara ƙarfi na ƙarfi na 800 n / 640 n ya kasance mafi ƙarancin yawan amfanin ƙasa ƙarfin kusoshi / gabaɗaya an bayyana a cikin ƙarfin "XY", X * 100 = Ƙarfin Ƙarfin Ƙarfi, X * 100 * (Y / 10) = Ƙarfin Ƙarfin Ƙarfin Ƙarfafa (kamar yadda aka tsara a cikin tambarin: yawan amfanin ƙasa / ƙarfin ƙarfi = Y / 10, wato 0. Y ya nuna) kamar girman 4.8, Ƙarfin daɗaɗɗen kullin 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. in the world today there are two main types, one for the metric system, the measuring unit is meter (m), centimeters (cm), mm (mm), etc., in Europe, China and Japan and other southeast Asia use is ƙari, wani kuma Ingilishi, ma'aunin ma'aunin ya fi inci (inch), ana amfani da shi sosai a cikin Amurka, Burtaniya da sauran ƙasashen Turai da 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 maki fiye da 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 maras muhimmanci tensile ƙarfi darajar da kuma bi da bi. lankwasawa ƙarfi rabo na abin rufewa.Misali: kusoshi tare da aikin rating 4.6, wanda ke nufin:
1. Ƙarfin ƙarancin ƙima na kayan kwalliya ya kai 400MPa;
2. Ƙarfin ƙarfin lanƙwasa na kayan abu shine 0.6;
3. Ƙarfin yawan amfanin ƙasa na abin rufewa 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 ƙaƙƙarfan 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 aji