Txheej txheem cej luam ntawm AS/NZS 1163
AS/NZS 1163yog qhov sib koom Australian thiab New Zealand Standard muaj npe"Txias- tsim cov qauv steel hollow seem". Nws qhia txog qhov yuav tsum tau ua rau kev tsim khoom ntawm lub voj voog, square, thiab lub voj voos hollow seem (CHS, SHS, RHS) ua los ntawm cov hlau, feem ntau yog siv rau hauv cov qauv siv.
Qhov tseem ceeb tshem tawm yog cov seem notxias - tsim. Qhov no txhais tau hais tias cov hlau sawb yog tsim rau hauv ib qho hollow seem ntawm ambient (chav tsev) qhov kub thiab txias, uas ua rau cov khoom siv sib txawv piv rau kub -tsim los yog seamless kav.
Cov ntsiab lus tseem ceeb ntawm tus qauv
1. Scope thiab Daim Ntawv Thov
Nws npog dab tsi:Welded ncig, square, thiab lub voj voos hollow seem (CHS, SHS, RHS) tsim los ntawm steel sawb uas tau txias - tsim.
Kev Siv Tseem Ceeb:Kev siv cov qauv hauv vaj tse, txuas hniav, thiab lwm yam kev tsim vaj tsev. Nws kuj yog siv dav rau kev siv tshuab, tes tuav, thiab kev txhawb nqa ncej.
Dab tsi nws tsis npog:Seamless kav dej (them los ntawm AS 1074 los yog AS 1548) los yog kub- tsim hollow seem (nrog los ntawm AS/NZS 1074).
2. Qib ntawm Cov Hlau
Tus qauv txhais tau ntau qib raws li lawv qhov tsawg kawg nkaus yield zog. Cov qib uas feem ntau yog:
C250:Yam tsawg kawg yield zog ntawm 250 MPa. Qhov no yog qib - hom phiaj.
C350:Yam tsawg kawg yield zog ntawm 350 MPa. Qhov no yog qib siab -lub zog, muaj ntau heev rau cov tswv cuab ntawm cov qauv uas qhov hnyav yog qhov tseem ceeb.
C450:Yam tsawg kawg yield zog ntawm 450 MPa. Siv rau siab - ntawv thov kev nyuaj siab.
Lub "C" sawv cev rau "Cold{0}}formed".
3. Kev tsim khoom
Kev tsim:Hlau sawb (coil) yog txias txias- ua rau lub voj voog, square, lossis duab plaub.
Vuam:Cov npoo yog welded ua ke siv ob qho:
HFIW (High-Frequency Induction Vuam):Txoj kev tshaj plaws.
SAW (Submerged Arc Welding):Feem ntau yog siv rau cov phab ntsa tuab lossis loj dua.
Sizing & Finishing:Lub raj welded yog tom qab ntawd qhov loj me rau nws qhov kawg qhov ntev, thiab tej zaum yuav ua kom sov- kho, ncaj, thiab txiav kom ntev.
4. Tshuaj muaj pes tsawg leeg
Tus qauv qhia txog qhov txwv siab tshaj plaws rau cov ntsiab lus xws li Carbon (C), Phosphorus (P), thiab Sulfur (S) kom ntseeg tau tias muaj kev sib tw thiab kev sib tw. Qhov muaj pes tsawg leeg sib txawv raws qib thiab kev tsim khoom.
5. Mechanical Properties
Qhov no yog qhov tseem ceeb ntawm tus qauv, ua kom cov khoom ua tau raws li qhov xav tau.
Tensile zog:Qhov siab tshaj plaws ntawm cov hlau tuaj yeem tiv taus thaum raug ncab.
Yield zog (Rp0.2):Qhov kev ntxhov siab uas cov khoom pib deform plastically. Qhov no yog tus nqi tseem ceeb rau kev tsim qauv.
Elongation:Kev ntsuas ntawm ductility, qhia ntau npaum li cas cov hlau tuaj yeem ncav cuag ua ntej tawg.
6. Dimensional Tolerances
AS/NZS 1163 muab kev txwv nruj rau:
Sab nraud Dimensions (OD):Tolerance rau txoj kab uas hla (CHS) thiab dav / qhov tob (SHS / RHS).
Phab ntsa Thickness:Tolerances rau phab ntsa nominal.
Ntev:Tolerances rau cov khoom ntev.
Kev ncaj:Qhov siab tshaj plaws tso cai sib txawv ntawm txoj kab ncaj nraim.
7. Kev xeem thiab ntawv pov thawj
Cov neeg tsim khoom yuav tsum ua cov kev xeem kom paub tseeb tias kev ua raws cai, suav nrog:
Tensile xeem
Flattening tests (rau CHS) los yog rov qab khoov xeem (rau SHS/RHS) los xyuas qhov kev ncaj ncees.
Dimensional checks.
Cov khoom siv rau AS / NZS 1163 yuav tsum tuaj nrog aDaim ntawv pov thawj(feem ntau yog Hom 3.1 Kev Tshawb Fawb Daim Ntawv Pov Thawj rau AS 1020) lees paub tias nws ua tau raws li txhua qhov yuav tsum tau ua.
Kev sib piv nrog lwm cov qauv yeeb nkab
Nws yog ib qho tseem ceeb kom tsis txhob cuam tshuam AS / NZS 1163 nrog rau lwm cov qauv yeeb nkab.
| Feature | AS/NZS 1163 | AS 1074 (Pib rau Kev Siv Siab) | AS/NZS 3678 (Structural Steel - Phaj & Sections) |
|---|---|---|---|
| Full Title | Txias- tsim cov qauv steel hollow seem | Cov kav hlau thiab tubular rau kev pabcuam zoo tib yam | Cov qauv hlau - Kub- dov daim hlau, floorplate thiab seem |
| Kev siv thawj zaug | Cov qauv tsim(thav duab, txhawb nqa) | Siab & Piping(dej, gas) | Cov qauv tsim(beams, kem, phaj) |
| tsim | Txias- tsim& Welded | Yuav ua tau kub- tsim, txias- tsim, los yog seamless | Kub- dov |
| Cov Qib Siab | C250, C350, C450 | C250, C350 (tab sis rau txawv specs) | 250, 300, 350 (xws li GR250, GR350) |
| Ntsiab tsom | Lub zog, qhov ntev tolerances, weld ductility | Siab- muaj peev xwm, ntsuas hydrostatic | General structural zog, weldability |
Cov ntawv thov siv
Cov Khoom Siv Hauv Tsev:Ru tsev trusses, kab, purlins, thiab rafters.
Architectural & Kev tsim kho:Handrails, balustrades, kev ruaj ntseg cov ntxaij vab tshaus, thiab scaffolding (tsim qauv).
Industrial:Tshuab thav duab, txhawb cov qauv, conveyor systems.
Agricultural:Sheds, nyuj rails, khoom thav duab.
Rooj tog & Fit- tawm:Niaj hnub nimno rooj tog, khw fittings, tso saib units.
Cov ntsiab lus
AS/NZS 1163yog qhov mus - rau tus qauv rautxias- ua carbon steel hollow seem (CHS, SHS, RHS)siv nyob rau hauv structural thiab mechanical applications thoob plaws Australia thiab New Zealand. Thaum koj teev cov khoom siv rau tus qauv no, koj tau lees paub ntawm cov khoom lag luam nrog lub zog txhais, ductility, thiab meej qhov ntev, ua rau nws ntseeg tau thiab kwv yees rau engineers thiab fabricators.
Nco ntsoov xyuas kom koj tau txais daim ntawv pov thawj kev xeem uas tsim nyog los ntawm koj tus neeg muab khoom siv los txheeb xyuas kev ua raws li cov ntawv thov tseem ceeb.
