1. Dab tsi ua rau Chav Kawm 23 tshwj xeeb hauv ASTM A671 CJH115?
Chav Kawm 23qhia a23,000 psi (159 MPa) hydrostatic test siab, qhov siab tshaj plaws nyob rau hauv tus qauv series, rau kev siv siab heev.
CJH115xav tau qhov ntev Charpy V- ntsuas qhov ntsuas ntawm-115 ° F (-81 ° C)nrog siab -lub zog (H) cov khoom siv.
2. Cov ntawv thov tseem ceeb?
LNG liquefaction nroj tsuag: Siab -pressure cryogenic hloov kab
Space launch infrastructure: Ua kua hydrogen / oxygen ntim
Sib sib zog nqus- hiav txwv mining systems: High-Slurry thauj khoom ntawm qhov kub thiab txias
3. Txhim kho cov khoom siv kho tshuab?
TensileNtau dua lossis sib npaug rau 85 ksi (586 MPa)
Yield: Ntau dua lossis sib npaug rau 55 ksi (379 MPa)
Kev cuam tshuam: Ntau dua lossis sib npaug li 35 ft -lb (47 J) ntawm -115℃F
Elongation: Ntau dua lossis sib npaug li 15% (tswj los ntawm microalloying)
4. Metallurgical nta?
Ultra{0}} carbon qis(tsawg dua lossis sib npaug li 0.18%) nrog1.2-1.8% Mn
Microalloy Cocktail: Nb + V + Ti + B rau grain ciam teb ntxiv dag zog
Ua kom txias txiasThaum lub sij hawm tsim khoom kom ua tau zoo bainitic microstructure
5. Cov txheej txheem kev pov hwm zoo?
Triple xeemRT + UT + MT (Radiography, Ultrasonic, Sib Nqus Particle)
Cryogenic pov thawj kuaj: Submersion hauv LNG rau 24 teev ua ntej ntawv pov thawj
Digital twin tracking: Blockchain -raws li cov ntaub ntawv keeb kwm ntaub ntawv
