Bolt arụmọrụ ọkwa, ya bụ bolt arụmọrụ ọkwa n'ihi na ígwè Ọdịdị njikọ, na-ekewa n'ime ihe karịrị 10 akara ule, dị ka 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, 12.9, etc.Bolt arụmọrụ ike ọkwa labelụ nke abụọ akụkụ, nke na-enweghị ihe mejupụtara ike ọkwa labelụ nke akụkụ abụọ, nke na-enweghị ihe mejupụtara ike ọkwa akara nke akụkụ abụọ, nke na-enweghị ihe mejupụtara ike ọkwa akara nke akụkụ abụọ. ihe.
Ihe ọkwa ọkwa ọkwa bolt pụtara bụ ọkọlọtọ mba ụwa niile, bolt nke otu ọkwa arụmọrụ, n'agbanyeghị ọdịiche nke ihe ya na mmalite ya, arụmọrụ ya bụ otu, imewe nwere ike họrọ naanị ọkwa arụmọrụ.
Ike ọkwa 8.8 na 10.9 ịdị ukwuu na-ezo aka n'ogo nke ịkpacha ajị anụ nke bolt bụ 8.8 GPa na 10.9 GPa 8.8 nominal tensile ike nke 800 n / 640 n bụ nominal mkpụrụ ike bolts / bụ n'ozuzu na-egosipụta na "XY" ike, X * 100 ike, X * 100 ike. 10) = ike ike nke bolt (dị ka ekwuru na logo: ike mkpụrụ / ike = Y / 10, ya bụ 0. Y gosiri) dị ka ịdị ukwuu 4.8, ike ike nke bolt bụ: 400 mpa. ike na-emepụta: 400 * 8/10 = 320MPa. Ọzọ 4 na-emekarị ka ọ bụrụ igwe anaghị agba nchara 0. A2-70, nke pụtara ma kọwaa nha: ogologo nha unit n'ụwa taa e nwere isi abụọ ụdị, otu maka metric usoro, na nha unit bụ mita (m), centimeters (cm), mm (mm), wdg, na Europe, China na Japan na ndị ọzọ n'ebe ndịda ọwụwa anyanwụ Asia ojiji bụ ihe ọzọ, ọzọ bụ English, na-atụ unit bụ tumadi maka sentimita (inch), na-eji Britain na mba ndị ọzọ na United States. Ntụ usoro metrik: 1m = 100 cm = 1000 mm2, nha usoro Bekee: (8) 1 inch = 8 ints 1 inch = 25.4 mm
Bolts eji maka njikọ nke ígwè owuwu nwere ihe karịrị 10 akara ule, gụnyere 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9 na 12.9.Bolt arụmọrụ ọkwa labelụ mejupụtara abụọ akụkụ, nke karị na-anọchi anya ọnụ ihe tensile ruru uru na ehulata ike atụ. 4.6, nke pụtara:
1. The nominal tensile ike nke bolt ihe ruru 400MPa;
2. Oke ike na-ehulata nke ihe mkpuchi bụ 0,6;
3. The nominal mkpụrụ ike nke bolt ihe ruru 400 × 0.6 = 240MPa klas
Performance ọkwa 10.9 elu ike bolt, ya ihe onwunwe mgbe okpomọkụ ọgwụgwọ, nwere ike nweta:
1. The nominal tensile ike nke bolt ihe ruru 1000MPa;
2. Oke ike na-ehulata nke ihe mkpuchi bụ 0,9;
3. The nominal mkpụrụ ike nke bolt ihe ruru 1000 × 0.9 = 900MPa klas
Oge nzipu: Mar-31-2019