Dab tsi yog qhov yield zog ntawm Qib B yeeb nkab
A500 GRB American standard square tubing yog ib hom square-section steel raj siv dav hauv kev tsim kho, tshuab tsim khoom, thiab kev tsim vaj tsev. Lub "A500" nyob rau hauv nws lub npe sawv cev rau tus qauv tsim los ntawm American Society for Testing and Materials (ASTM), uas qhia txog cov kev cai rau cov tshuaj muaj pes tsawg leeg, mechanical zog, thiab dimension tolerances ntawm lub square tubing. Piv nrog rau cov square tubing zoo tib yam, A500 American standard square tubing muaj cov qauv nruj dua nyob rau hauv cov nqe lus ntawm lub zog, corrosion kuj, thiab kev tsim precision, ua rau nws tsim nyog rau daim ntaub ntawv nrog cov khoom siv siab ua haujlwm.
Mechanical Properties
| Tensile | ASTM A500 Qib B |
| Tensile zog, min | 58000 psi [400 MPa] |
| Yield zog, min | 46000 psi [315 MPa] |
| Elongation hauv 2 nti (50 mm), min, % | 23 |
Tshuaj muaj pes tsawg leeg
| Kev sib xyaw,% | ASTM A500 Qib B | |
| Kev Ntsuas Kub | Kev tshuaj xyuas khoom | |
| Carbon, max | 0.26 | 0.30 |
| Manganese, max | 1.35 | 1.40 |
| Phosphorus, max | 0.035 | 0.045 |
| Sulfur, max | 0.035 | 0.045 |
| Tooj, min | 0.20 | 0.18 |
Kev kho saum npoo
Nyob ntawm daim ntawv thov ib puag ncig, A500 GrB square tubing yuav xav tau kev kho deg ntxiv, xws li:
- Kub-dip galvanizing: Rau qhov chaw sab nraum zoov lossis qhov chaw ntub dej, txhim kho corrosion kuj.
- Painting los yog hmoov txheej: Haum rau kev kho kom zoo nkauj lossis lub teeb tiv thaiv corrosion.
- Txias dov ci tiav: Rau cov ntawv thov uas xav tau qib siab ntawm qhov smoothness.
Daim ntawv thov ntawm A500 GrB Square Tubes
(1) Kev tsim vaj tsev
Hauv cov tsev siab - nce siab lossis loj - cov qauv dav, cov phab ntsa tuab thiab lub zog ntawm cov raj square yuav tsum raug kho raws li kev suav cov load. Piv txwv li, qee qhov truss nodes yuav xav tau cov phab ntsa tuab dua lossis siv cov khoom siv qib siab dua -Gr.C.
(2) Cov cuab yeej siv tshuab
Nyob rau hauv conveyor thav duab los yog cov khoom siv tsis siv neeg, qhov tseeb qhov tseeb thiab qhov ncaj ntawm cov raj square yog qhov tseem ceeb. Kev sib txawv ntau dhau yuav ua rau muaj teeb meem sib dhos lossis ua haujlwm tsis ruaj khov.
(3) Kev Siv Hluav Taws Xob
Square raj siv rau lub hnub ci vaj huam sib luag txhawb los yog cua turbine yees feem ntau xav tau huab cua ntau dua thiab qaug zog, yog li muaj peev xwm xav tau tshwj xeeb alloy compositions lossis cov txheej txheem kho cua sov.
A500 GRB Tube Hoobkas
