Chidule cha mbale za nickel za Cryogenic
Ma cryogenic nickel plates ndi abwino kwambiri kugwiritsa ntchito pamalo otentha kwambiri. Amagwiritsidwa ntchito ponyamula mpweya wachilengedwe wosungunuka (LNG) ndi mpweya wa petroleum wosungunuka (LPG).
A 645 Gr A / A 645 Gr B, kuchepetsa ndalama komanso chitetezo chowonjezeka pakupanga thanki ya ethylene ndi LNG.
Zipangizo zamakono zopangira zinthu zimathandiza kuti tithe kupanga zitsulo zamtundu wa A 645 Gr A ndi Gr B komanso zitsulo zachikhalidwe za nickel za 5% ndi 9%.
● LNG
Mpweya wachilengedwe umasungunuka pa kutentha kochepa kwambiri kwa -164 °C, zomwe zimapangitsa kuti mphamvu yake ichepe ndi 600. Izi zimapangitsa kuti isungidwe ndi kunyamulidwa kwake kutheke komanso kothandiza. Pa kutentha kochepa kwambiri kumeneku, kugwiritsa ntchito zitsulo zapadera za nickel za 9% ndikofunikira kuti zitsimikizire kuti zinthu zikuyenda bwino komanso kuti zisawonongeke ndi kusweka. Timapereka mbale zazikulu kwambiri pamsika uno, ngakhale zokhuthala mpaka 5 mm.
● LPG
Njira ya LPG imagwiritsidwa ntchito popanga propane ndi kukonza mpweya kuchokera ku mpweya wachilengedwe. Mpweya uwu umasungunuka kutentha kwa chipinda pa mphamvu yochepa ndipo umasungidwa m'matanki apadera opangidwa ndi zitsulo za nickel za 5%. Timapereka mbale za chipolopolo, mitu ndi makoni kuchokera ku gwero limodzi.
Tengani mbale ya ASTM A 645 Gr B mwachitsanzo
● Kugwiritsa ntchito A 645 Gr A popanga matanki a ethylene kumapereka mphamvu yokwera pafupifupi 15%, chitetezo chowonjezeka komanso kuthekera kochepetsa makulidwe a khoma kuti muchepetse ndalama zambiri pomanga thanki.
● ASTM A 645 Gr B imapeza zinthu zofanana ndi zitsulo zachikhalidwe za nickel za 9% zomwe zimasungidwa mu LNG koma imakwaniritsa zofunikira izi ndi nickel yotsika pafupifupi 30%. Zotsatira zina ndi kuchepa kwakukulu kwa ndalama zopangira matanki a LNG am'mphepete mwa nyanja ndi m'mphepete mwa nyanja komanso pomanga matanki amafuta a LNG.
Ubwino wapamwamba kwambiri kuti mukhale ndi chitetezo chapamwamba kwambiri
Maziko a mbale zathu zapamwamba za nickel ndi ma slabs oyera kwambiri ochokera ku fakitale yathu yopanga zitsulo. Kuchuluka kwa kaboni kochepa kwambiri kumatsimikizira kusinthasintha kwabwino. Ubwino wina umapezeka mu mphamvu yabwino kwambiri ya chinthucho komanso mphamvu ya kusweka (CTOD). Malo onse a mbale amayesedwa ndi ultrasound. Magnetic yotsalira ili pansi pa 50 Gauss.
Kukonzekera koyambirira kuti kukwaniritse zofunikira za makasitomala
● Yophikidwa ndi mchenga kapena yophikidwa ndi mchenga komanso yokonzedwa bwino.
● Kukonzekera m'mbali zolumikizidwa: Kulimba pang'ono kwa m'mphepete woyaka kumatheka chifukwa cha kuchuluka kwa mpweya wochepa.
● Kupinda mbale.
Magiredi a Zitsulo a Mbale za Nickel za Cryogenic zomwe Jindalai Can amapereka
| Gulu la zitsulo | Muyezo wa kalasi yachitsulo | Magiredi achitsulo |
| zitsulo za nickel za 5% | EN 10028-4 / ASTM/ASME 645 | X12Ni5 A/SA 645 Giredi A |
| Zitsulo za nickel za 5.5% | ASTM/ASME 645 | A/SA 645 Giredi B |
| Zitsulo za nickel za 9% | EN 10028-4 / ASTM/ASME 553 | X7Ni9 A/SA 553 Mtundu 1 |
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