1. Txuj: SANS 719
2. Qib: C
3. Hom: Hluav taws xob tiv thaiv Welded (ERW)
4. Qhov Loj:
- Sab nraud txoj kab uas hla: 10mm txog 610mm
- Phab ntsa Thickness: 1.6mm txog 12.7mm
5. Ntev: 6 meters, los yog raws li xav tau
6. Xaus: Plain kawg, beveled kawg
7. Kev kho deg:
- Dub (tus kheej xim)
- Oiled
- Galvanized
- pleev xim rau
8. Daim ntaub ntawv: Dej, dej phwj tuaj, kev thauj mus los ntawm cov kua
9. Tshuaj muaj pes tsawg leeg:
- Cov pa roj carbon (C): 0.28% max
- Manganese (Mn): 1.25% max
Phosphorus (P): 0.040% max
- Sulfur (S): 0.020% max
- Silcon (Si): 0.04% max.Los yog 0.135% rau 0.25%
10. Mechanical Properties:
- Tensile zog: 414MPa min
- Tawm Zog: 290 MPa min
- Elongation: 9266 muab faib los ntawm tus lej tus nqi ntawm qhov tseeb UTS
11. Cov txheej txheem tsim khoom:
- Cov yeeb nkab yog tsim los siv cov txheej txheem txias-tsim thiab high-frequency induction welded (HFIW).
- Lub sawb yog tsim rau hauv tubular zoo thiab welded longitudinally siv high-frequency induction vuam.
12. Kev Tshawb Fawb thiab Kev Ntsuas:
- Tshuaj ntsuam xyuas cov khoom siv raw
- Transverse tensile test kom paub meej tias cov khoom siv ua raws li cov lus qhia tshwj xeeb
- Flattening xeem kom ntseeg tau tias cov yeeb nkab muaj peev xwm tiv taus deformation
- Kev ntsuas hauv paus khoov (hluav taws xob fusion welds) kom ntseeg tau tias cov yeeb nkab hloov tau yooj yim thiab kev ncaj ncees
- Hydrostatic test kom ntseeg tau tias cov yeeb nkab xau-tightness
13. Kev Ntsuam Xyuas Tsis Zoo (NDT):
- Kev kuaj ultrasonic (UT)
- Kev ntsuas tam sim no Eddy (ET)
14. Ntawv pov thawj:
- Daim ntawv pov thawj zeb xeem (MTC) raws li EN 10204/3.1
- Kev tshuaj xyuas thib peb (yeem)
15. Ntim:
- Hauv pob
- Cov kaus mom yas ntawm ob qhov kawg
- Daim ntawv tsis muaj dej los yog cov ntawv hlau npog
- Kos npe: raws li qhov yuav tsum tau ua (xws li Chaw Tsim Khoom, qib, qhov loj me, tus qauv, tus lej xov tooj cua sov, Lot Number thiab lwm yam)
16. Kev Xa Khoom:
- Raws li dov
- normalized
- Normalized dov
17. Marking:
-Txhua lub yeeb nkab yuav tsum raug cim nrog cov ntaub ntawv hauv qab no:
- Tus neeg tsim khoom lub npe lossis lub cim lag luam
- SANS 719 Qib C
- Loj (txheej kab thiab phab ntsa thickness)
- Kub tooj los yog batch tooj
- Hnub tsim khoom
- Kev soj ntsuam thiab kuaj cov ntaub ntawv pov thawj
18. Cov Lus Qhia Tshwj Xeeb:
- Cov kav dej tuaj yeem muab cov coatings tshwj xeeb lossis hauv ob sab phlu rau kev siv tshwj xeeb (xws li, epoxy txheej rau corrosion kuj).
19. Kev Xeem Ntxiv (Yog xav tau):
- Charpy V-notch impact test
- Kev kuaj Hardness
- Kev ntsuam xyuas macrostructure
- Kev ntsuam xyuas microstructure
20. Tolerance:
- Sab nraud txoj kab uas hla
- Phab ntsa thickness
Cov phab ntsa tuab ntawm cov yeeb nkab yuav tsum, ua rau kev ua siab ntev ntawm +10% lossis -8%, yog ib qho ntawm cov txiaj ntsig tau muab rau hauv kab 3 txog 6 ntawm cov lus hauv qab no, tshwj tsis yog tias pom zoo los ntawm cov chaw tsim khoom thiab cov neeg yuav khoom.
-Txoj kev ncaj
Txhua qhov sib txawv ntawm cov yeeb nkab los ntawm txoj kab ncaj nraim, yuav tsum tsis pub tshaj 0,2% ntawm qhov ntev ntawm cov yeeb nkab.
Ib qho kev tawm ntawm qhov sib txawv (tshwj tsis yog qhov tshwm sim los ntawm sag), ntawm cov kav dej ntawm sab nraud txoj kab uas hla ntau dua 500 hli yuav tsum tsis pub tshaj 1% ntawm sab nraud txoj kab uas hla (iemaximum ovality 2%) lossis 6 hli, qhov twg tsawg dua.
Thov nco ntsoov tias daim ntawv qhia ntxaws ntxaws no muab cov lus qhia ntxaws txogSANS 719 Qib C kav.Cov kev cai tshwj xeeb yuav txawv raws li qhov project thiab qhov tseeb specification ntawm cov yeeb nkab yuav tsum tau.
Lub sij hawm xa tuaj: Plaub Hlis-28-2024