Mhedziso yeCryogenic nickel plates
Cryogenic nickel mahwendefa akanyatsokodzera kune maapplication akafumurwa kune yakanyanya kuderera tembiricha. Iyo inoshandiswa kutakura liquefied natural gas (LNG) uye liquefied petroleum gas (LPG).
A 645 Gr A / A 645 Gr B, kuderedza mutengo uye kuwedzera kuchengetedzeka mu ethylene uye LNG tangi kuvaka.
Zvigadzirwa zvemhando yepamusoro zvinoita kuti tikwanise kugadzira ese simbi mamakisi A 645 Gr A uye Gr B pamwe chete neakajairwa 5% uye 9% nickel simbi.
● LNG
Gasi remusikirwo rinonyungudutswa patembiricha yakaderera zvikuru ye -164 °C, ichideredza huwandu hwayo nechikamu che600. Izvi zvinoita kuti kuchengetwa kwayo uye kutakurwa kugoneke uye kubudirira kwehupfumi. Pane idzi tembiricha dzakaderera, kushandiswa kwe9% nickel simbi kwakakosha kuitira kuti ive nechokwadi chekuita ductility yakakwana uye kuramba kune brittle cracking. Isu tinopa mamwe mahwendefa akafara kune ichi chikamu chemusika, kunyangwe mukukora kusvika 5 mm.
● LPG
Iyo LPG maitiro inoshandiswa kugadzira propane uye kugadzirisa magasi kubva kugasi rechisikigo. Aya magasi anonyungudutswa patembiricha yepakamuri pakumanikidzwa kwakaderera uye anochengetwa mumatangi akakosha akagadzirwa ne5% nickel steels. Isu tinopa mahwendefa emakungu, misoro uye makoni kubva kune imwechete sosi.
Tora ASTM A 645 Gr B Plate Somuenzaniso
● Kushandiswa kweA 645 Gr A pakugadzira matangi ethylene kunopa simba repamusoro 15%, kuchengetedzwa kwakawedzera uye mukana wekuderedzwa kwemadziro emadziro kuitira kuchengetedza mari yakawanda mukuvaka tangi.
● ASTM A 645 Gr B inowana zvinhu zvakaenzana neaya echinyakare 9% nickel simbi muLNG yekuchengetera asi inosangana nezvinodiwa izvi neinenge 30% yakaderera nickel content. Imwe mhedzisiro ikadzikiswa zvakanyanya mutengo mukugadzirwa kwematangi ekumahombekombe uye kunze kwemahombekombe eLNG uye mukuvaka matangi emafuta eLNG.
Hunhu hwepamusoro hwepamusoro-soro hwekuchengetedza
Hwaro hwemhando yepamusoro nickel plates ndeyekuchena-kuchena slabs kubva kune yedu pachedu kugadzira simbi. Iyo yakaderera kabhoni yemukati inovimbisa yakakwana weldability. Mamwe mabhenefiti anowanikwa mukusimba kwesimba kwechigadzirwa uye fracturing properties (CTOD). Iyo yese ndiro pamusoro inoedzwa ultrasonic. Iyo yakasara magineti iri pazasi 50 Gauss.
Preprocessing kusangana nevatengi zvinodiwa
● Jecha-rakaputika kana jecha-rakaputika uye rakagadzirwa.
● Kugadzirira kwe welded edges: Kuomeswa zvishoma kwemucheto wakatsva kunogoneka nekuderera kwekabhoni.
● Kupeta ndiro.
Simbi Magiredhi eCryogenic Nickel Plates Jindalai Inogona Kugovera
Boka resimbi | Simbi giredhi standard | Simbi mamakisi |
5% nickel simbi | EN 10028-4 / ASTM/ASME 645 | X12Ni5 A/SA 645 Giredhi A |
5.5% nickel simbi | ASTM/ASME 645 | A/SA 645 Giredhi B |
9% nickel simbi | EN 10028-4 / ASTM/ASME 553 | X7Ni9 A/SA 553 Rudzi rwekutanga |