Hauv kev ua lag luam qub, cov txheej txheem xws li carbon steel, stainless hlau, thiab tooj.
Kho vajtse screws
Ua ntej, carbon hlau. Peb paub cov roj tsawg, cov pa roj carbon nrab thiab cov pa roj carbon fiber ntau, thiab cov hlau phom hlau los ntawm carbon cov ntsiab lus.
1. Tsawg-carbon steel C% ≤ 0.25% Domestically npe A3 hlau. Yeej paub tias txawv teb chaws li 1008,1015,1018,1022 thiab hais txog. Feem ntau yog siv rau 4.8 bolts thiab 4 ceev, screws me me thiab lwm yam khoom uas tsis muaj qhov yuav tsum ua. (Faj seeb: Lub tshuab drilling yog ua los ntawm 1022 khoom.)
2, nruab nrab carbon steel 0.25%
3, siab carbon steel C%> 0.45%. Tam sim no tsis siv nyob hauv kev ua lag luam
4, hlau hlau: Cov pa roj carbon alloy ntsiab ntxiv rau kom qee yam tshwj xeeb ntawm cov hlau: 35,40 chromium molybdenum, SCM435, 10B38. Fang Sheng txhuam tsuas yog siv SCM435 chromium molybdenum alloy hlau, lub ntsiab Cheebtsam yog C, Si, Mn, P, S, Cr, Mo.
Thib ob, steel hlau tsis huv. Kev kawm theem: 45, 50, 60, 70, 80
1. Cov khoom siv loj (18% Cr, 8% Ni) muaj kev tiv thaiv tshav kub zoo, tiv thaiv kev txhim khu zoo, thiab kev zoo weldability. A1, A2, A4
2. Martensite thiab 13% Cr muaj cov plab hnyuv corrosion tsis ua hauj lwm, siab zog, thiab hnav tsis zoo. C1, C2, C4 ferritic stainless hlau. 18% Cr forging cov cuab yeej zoo, corrosion kuj yog muaj zog tshaj martensite. Cov khoom lag luam nyob hauv kev lag luam mas Japanese khoom. Raws li qib tau muab faib SUS302, SUS304, SUS316.
Peb, tooj liab. Feem ntau siv cov ntaub ntawv rau tooj dag ... zinc copper alloy. Lub khw tsuas yog siv H62, H65, H68 tooj liab raws li kev cai.