1. ASTM A671 CB70 Chav Kawm 30 yog dab tsi?
TxujQauv: ASTM A671premium- qibEFW kav dej rauhuab cua siab thiab kev pabcuam cryogenic.
Cov ntsiab lus tseem ceeb:
70 ksi (483 MPa) yield zog tsawg kawg nkausntawm-50 ° F (-45 ° F).
Tsim Siab: Mus txog10,000 psi (690 bar)(Class 30 ntsuam xyuas).
Khoom siv: Carbon -manganese steel nrogmicro{0}}alloying (Nb/V/Ti) + 2.5-3.5% npib tsib xeerau superior cryogenic toughness.
2. Cov ntawv thov
Roj & Roj:
Ultra- cov kav dej tob (Ntau dua lossis sib npaug li 5,000m qhov tob).
Siab -kev txhaj tshuaj roj / LNG cia (-260℃F txog 300℃F).
Kev lag luam:
Nuclear fusion reactor coolant systems.
Chaw tso tawm cov kab hluav taws xob cryogenic.
3. Cov Khoom Siv Khoom & Kev Ntsuas
| Khoom | Kev xav tau | Test Standard |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 70 ksi ntawm-50 ° F (-45 ° F) | ASTM A 370 Cov Lus Qhia Tshwj Xeeb |
| Impact Toughness | Ntau dua lossis sib npaug li 40 ft-lb (54 J) ntawm-50℃F | ASTM A673 (Charpy V) |
| Hydrostatic Test | 6.0x tsim siab (ib chav kawm 30) | ASTM A671 Tshooj 12 |
| NDT (UT/RT/MT/PT) | 100% weld + puag hlau tshuaj xyuas | ASTM E 317 / E94 / E709 / E1417 / ASTM E317 / E94 / E709 / E1417 / ASTM E317 / E94 / E709 / E1417 / ASTM E317 / E94 / E709 / E1417 / ASTM E317 / E94 / E709 / E1417 |
4. Kev tsim khoom & ntawv pov thawj
Txheej txheem:
Hluav taws xob fusion vuamnrogPWHT + Q&T (Quench & Temper).
Thermomechanical tswj kev ua haujlwm (TMCP)rau ultra-zoo grain qauv.
Daim ntawv pov thawj:
Ua raws liASME B31.3, API 5L PSL2, thiabDNV-OS-F101.
Yuav tsum tau lees paub thib peb- tog(piv txwv li, Lloyds, ABS) rau cov haujlwm tseem ceeb.
5. Kev txwv kev ua haujlwm & kev ua raws cai
Qhov kub thiab txias: -50 ° F txog 850 ° F (-45 ° F txog 454 ° F).
Siab txwv: Tsawg dua lossis sib npaug li 10,000 psi (690 bar) rau Chav Kawm 30.
Cov qauv tseem ceeb:
ASME Section VIII Div. 3(Alternative Pressure Vessels).
TS EN ISO 3183: 2019(Kev siv yeeb nkab).
