High-lub zog hexagon bolts muaj nyob rau hauv 3 cov ntaub ntawv, raws li hauv qab no:
(1) Cov hlau. Feem ntau, cov tuam ntxhab ntawm hexagonal bolts sib txawv cov pa roj carbon steel qis, nruab nrab-carbon steel, muaj cov pa roj carbon loj thiab cov hlau alloy raws li cov ntsiab lus ntawm cov pa roj carbon steel cov khoom.
1. Tsawg carbon hlau C% ≤0.25% feem ntau hu ua A3 steel nyob hauv Suav teb. Nws yog qhov pib hu ua 1008, 1015, 1018, 1022, thiab lwm yam. Mas siv rau cov khoom lag luam uas tsis muaj qhov xav tau tawv tawv xws li qib 4.8 bolts thiab qib 4 txiv ntoo, ntsia hlau me me. (Faj seeb: 1022 khoom siv mas siv rau laum tw ntsia hlau.)
2. Nruab nrab carbon hlau 0.25%
3. Lub carbon siab steel C%> 0.45%. Tam sim no, hexagon ntsia liaj qhov rooj tus qauv tsis yog siv rau hauv kev ua lag luam.
4. Alloy steel: Hexagon bolt manufacturers ntxiv cov ntsiab lus sib xyaw nrog cov pa roj carbon steel kom nce qee qhov tshwj xeeb cov khoom ntawm hlau: xws li 35, 40 chromium molybdenum, SCM435, 10B38. Fangsheng screws tsuas yog siv SCM435 chromium-molybdenum alloy hlau, cov khoom tseem ceeb yog C, Si, Mn, P, S, Cr, Mo.
(2) Stainless hlau. Kev ua tiav qib: 45, 50, 60, 70, 80
Hexagon ntsia liaj qhov rooj tuam txhab yog muab faib ua austenite (18% Cr, 8% Ni) nrog cov ua haujlwm zoo thaum tshav kub kub, zoo corrosion kuj thiab weldability zoo. A1, A2, A4
Martensite thiab 13% Cr muaj kev txhim kho tsis zoo corrosion, lub zog siab thiab hnav zoo tsis kam. C1, C2, C4 ferritic stainless hlau. 18% Cr muaj qhov ua tau zoo dua thiab xeb dua li cov tshuaj martensite. Tam sim no cov khoom siv txawv teb ntawm lub lag luam yog cov khoom lag luam Japanese nkaus xwb. Raws li theem, nws yog tsuas yog muab faib rau SUS302, SUS304, thiab SUS316.
(3) Tooj liab
Cov khoom siv feem ntau siv rau hexagon ntsia liaj qhov rooj tuam ntxhab yog tooj dag ... zinc-tooj liab alloy. Kev lag luam tsuas yog siv H62, H65, H68 tooj liab raws li tus qauv qhov chaw.
Peb cov ntaub ntawv ntawm high-lub zog hexagonal bolts tau qhia ntawm no. Kuv vam tias txhua tus neeg yuav tsum them sai sai rau qhov txawv thaum mus yuav khoom.