Akụkọ

Ihe mkpuchi hexagon na-ezo aka n'ihe nkedo nke nwere isi nwere ịghasa. A na-ekewa bolts ka ọ bụrụ ihe mkpuchi ígwè na ihe mkpuchi igwe anaghị agba nchara dịka ihe si dị. A na-ekewa ígwè n'ime akara ule, yana akara mmụta nkịtị bụ 4.8, 8.8, na 12.9. Igwe anaghị agba nchara bụ nke igwe anaghị agba nchara SUS201, SUS304 na SUS316 bolts.
Ngwakọta bolts hexagon zuru ezu nwere isi bolt, akị na gasket dị larịị
Hexagon isi bolts bụ hexagonal isi bolts (eriri akụkụ) - c hexagonal head bolts (ful threads) - c grade, also known as hexagonal head bolts (rough) hexagonal head bolts, black iron skru. Ụkpụrụ ndị a na-ejikarị eme ihe bụ: sh3404, hg20613, hg20634, wdg.
Ihe mkpuchi isi hexagon (nke a na-akpọ hexagon bolt) nwere isi na mkpanaka eriri (
The keukwu arụmọrụ akara ule nke bolts eji maka njikọ nke ígwè owuwu na-ekewa karịa 10 akara ule, gụnyere 3.6, 4.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, na 12.9. N'ime ha, bolts nke ọkwa 8.8 na n'elu, nke a na-eji obere carbon alloy steel ma ọ bụ ọkara carbon steel ma na-enweta ọgwụgwọ okpomọkụ dị mkpa (imenyụ na iwe), a na-akpọkarị bolts dị elu, ebe ndị ọzọ na-ezokarị aka. ka nkịtị bolts. Akara ọkwa arụmọrụ bolt nwere akụkụ abụọ nke ọnụọgụgụ na-anọchi anya uru ike tensile ọnụ na oke mkpụrụ nke ihe bolt. Nke a bụ ihe atụ.
Ihe bolts nwere ọkwa arụmọrụ nke 4.6 bụ:
The nominal tensile ike nke bolt ihe ruru 400 mpa;
2. Nkwenye ike nke ihe mkpuchi bụ 0,6;
3. Ike mkpụrụ ọnụ nke ihe bolt ruo 400 × 0.6 = 240MPa larịị
Akwa ike bolts nwere ọkwa arụmọrụ nke 10.9, na ihe mgbe ọgwụgwọ okpomọkụ ruru:
1. The nominal tensile ike nke bolt ihe ruru 1000MPa;
2. The mkpụrụ ike ruru nke bolt ihe bụ 0,9;
Ike ntinye aha nke ihe bolt ruru 1000 × 0.9 = 900MPa larịị.
Ihe akara akara dị iche iche nke arụmọrụ bolt pụtara bụ ọkọlọtọ mba ụwa nabatara. Bolts nwere otu ọkwa nleba anya arụmọrụ ngwaahịa nwere otu arụmọrụ n'agbanyeghị ihe ha na mmalite ha, na naanị akara ngosi arụmọrụ nchekwa nwere ike ịhọrọ maka imewe.