Cov ntaub ntawv paub txog screws

Tam sim no, cov txheej txheem ntawm kev ua lag luam feem ntau suav nrog carbon steel, stainless hlau thiab tooj liab.
- carbon hlau. Peb paub qhov txawv ntawm cov pa roj carbon tsawg, nruab nrab carbon steel, siab carbon steel thiab alloy steel raws li cov ntsiab lus carbon hauv cov hlau.
1 Tsawg carbon steel C feem pua ​​​​tsawg dua lossis sib npaug rau 0.25 feem pua ​​​​yog feem ntau hu ua A3 steel hauv Suav teb. Nws yog lub hauv paus hu ua 1008101510181022 nyob rau txawv teb chaws. Nws yog tsuas yog siv rau qib 4.8 bolts, qib 4 ceev, me me screws thiab lwm yam khoom uas tsis muaj hardness yuav tsum tau. (Ceeb Toom: Cov ntsia hlau ntsia hlau yog tsim los ntawm 1022 khoom.)
2 carbon steel 0.25 feem pua
3 High carbon steel C%>0.45 feem pua. Yeej tsis siv nyob rau hauv kev ua lag luam
4. Alloy steel: ntxiv cov ntsiab lus alloy rau cov pa roj carbon zoo tib yam kom nce qee cov khoom tshwj xeeb ntawm cov hlau, xws li 35, 40 CrMo, SCM435, 10B38. Lub aromatic ntsia hlau yog tsim los ntawm SCM435 chrome-molybdenum alloy hlau, nrog rau cov khoom tseem ceeb ntawm C, Si, Mn, P, S, Cr thiab Mo.
2. Stainless hlau. Qib Kev Ua Haujlwm: 45, 50, 60, 70, 80
1. Lub ntsiab austenite (18 feem pua ​​​​Cr, 8 feem pua ​​​​Ni) muaj cua sov zoo, corrosion kuj thiab weldability. A1, A2, A4
2 Martensite thiab 13 feem pua ​​​​Cr muaj qhov tsis zoo corrosion tsis kam, siab zog thiab hnav tsis kam. C1, C2, C4 ferritic stainless hlau. 18 feem pua ​​​​Cr muaj cov cuab yeej zoo siab thiab zoo dua corrosion dua li martensite. Cov ntaub ntawv tuaj ntawm lub khw feem ntau yog los ntawm Nyiv. Nws tau muab faib ua SUS302, SUS304 thiab SUS316 los ntawm qib.
Peb tooj. Cov khoom siv yog tooj dag... zinc tooj liab alloy. H62, H65 thiab H68 tooj liab yog siv los ua tus qauv hauv kev ua lag luam.