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Liquefied natural gas (LNG), eo karolo ea eona e ka sehloohong e leng methane, ke "mafura a matala" a boleng bo holimo, a hloekileng, a sebetsang hantle le a bonolo, a nkoang e le matla a hloekileng ka ho fetisisa lefatšeng le e 'ngoe ea mehloli ea bohlokoa ka ho fetisisa ea matla a 21st. lekholo la lilemo.
9% nickel steel ke mofuta oa tšepe e tingoeng ka carbon e tlase ebile e halefile, e nang le karolo ea 9% ea nickel, e nang le weldability ea eona e ntle haholo, theko e tlase, matla a phahameng le boleng bo phahameng ba mocheso o tlase -196 ° C le melemo e meng e se e le eona e ka sehloohong. matla kahong ea litanka tse kholo tsa polokelo ea LNG. Re ikemiseditse ho hlahisa disebediswa tsa ho tjheseletsa tsa boleng bo phahameng le ho fana ka disebediswa tsa tshehetso tse tshehetsang le ditharollo tsa welding bakeng sa disebediswa tsa 9% tsa nickel steel welding e le mofani wa thepa wa boleng bo phahameng.
"Race the Deer" - ke eng e etsang hore lisebelisoa tsa rona tsa li-welding li hlahelle
Tlas'a khatello e habeli ea matla a lefats'e le litaba tsa tikoloho, indasteri ea LNG lapeng le kantle ho naha e ntse e phahama. Maemo a ho boloka mocheso o tlase haholo oa LNG ke phephetso e kholo bakeng sa lisebelisoa tse amohelang thepa le lisebelisoa tsa welding. Ka nako e telele, 9% ea lisebelisoa tsa welding bakeng sa tšepe ea nickel li 'nile tsa sebelisoa ke lisebelisoa tse tsoang linaheng tse ling. E le ho senya thibelo ea theknoloji ea linaheng tse ling le ho finyella litlhoko tsa indasteri ea LNG, re ile ra etella pele ho fana ka lisebelisoa tse feletseng tsa 9% tsa tšepe ea nickel le ts'ebetso ea ho tjheseletsa, 'me ra hlahella har'a bongata ka boleng bo botle ba sehlahisoa, sehlopha sa litsebi tsa setsebi. le tshebeletso e inehetseng le e nahanelang.
Ho na le mefuta e mengata e fapaneng e tšehetsang lisebelisoa tsa welding le lits'ebetso tsa welding
Ho fana ka lijo hohle ho latela tlhoko ea 'maraka
Re qapile le ho nts'etsapele lisebelisoa tsa boleng bo holimo tsa 9% tsa nickel le lits'ebetso tsa welding, ho kenyeletsoa li-electrode, lithapo tse kentsoeng ka tlas'a metsi le metsoako ea flux, lithapo tse nang le li-flux-cores bakeng sa welding ea boemo bo felletseng, le mehala ea argon arc welding. Letoto lena la lihlahisoa le na le thepa e ntle ea weldability le mochini, mme CTOD le liphetho tsa tlhahlobo ea boima ba 'mele li ntle haholo, lintlha tse ikhethileng tsa sehlahisoa li bonts'itsoe tafoleng e ka tlase.
Lintlha tse felletseng tsa 9% ea lisebelisoa tsa tšepe tsa nickel
| Ntho | Lebitso | Litekanyetso tse lumellanang | Sebopeho |
| Melamu ea elektrode | GEN-CM6 | AWS A5.11/A5.11M ENiCrMo-6 GB/T 13814 ENi6620 | The weldability e felletseng e ntle haholo, ts'ebetso ea deposition e phahame, 'me porosity ea filimi e felletseng e tlase haholo. |
| GEN-CM6 (YH) | AWS A5.11/A5.11M ENiCrMo-6 GB/T 13814 ENi6620 | E khethehile bakeng sa ho cheselletsa ka holimo, khanyetso e ntle ea porosity le khanyetso ea crack ea welding e holimo | |
| SAW + Flux | GWN-CM4+GXN-600 | AWS A5.14/A5.14M ENiCrMo-4 GB/T 15620 SNi6276 | E etselitsoe le ho ntlafatsoa bakeng sa welding e bataletseng le e otlolohileng, katleho ea flux e phahame mme boleng bo tsitsitse |
| Mohala oa khoele oa Flux | GFN-CM3 | AWS A5.34/A5.34M ENiCrMo3T1-4 | The weldability e babatsehang, khanyetso e ntle ea crack le khanyetso e ntle ea porosity maemong ohle |
| Mohala oa GTAW | GTN-CM3 GTN-CM4 | AWS A5.14/A5.14M ENiCrMo-3/ENICrMo-4 GB/T 15620 SNi6625/SNi6276 | Tšepe e qhibilihisitsoeng e na le mokelikeli o motle, ts'ebetso e ntle le boleng bo botle ba weld |
"Ka bobeli e thata le e bonolo" - boleng bo thata, tšebeletso e chesehang
Lisebelisoa tsa welding tsa k'hamphani ea rona li mameletse tlhahlobo ea 'maraka ka boleng bo holimo bo ka sebelisoang,' me ke bona ba pele ba ho fumana theknoloji e nang le tokelo ea molao ea lisebelisoa tsa tšepe ea 9% nickel China. E tšehelitsoe ke R&D e matla, sehlopha sa botekgeniki le litšebeletso, re thusa bareki ho fihlela tharollo ea tšepe ea nickel e phethahetseng ka ho fetesisa ea 9%.
Ho qapa patent le ho sebelisa maikutlo
"Ho etella pele indastering, ho thunya hohle" - ho paka matla ka ts'ebetso
Re ntse re khothaletsa ho kenya lisebelisoa tsa welding bakeng sa litanka tsa polokelo tsa nickel-steel LNG tsa 9%. Ho tloha ka 2016, lisebelisoa tsa 9% tsa nickel steel welding tsa Jingqun li sebelisitsoe ka katleho litanka tsa metsing tsa LNG mme li fumane litholoana tse ngata tse makatsang. Kamora moo, e ile ea hlaha mererong e 'meli ea litanka ea mobu ea 50,000 cubic meter bimetallic LNG naheng ea Changchun ka 2021, mme ea khothaletsoa ka ho latellana le ho sebelisoa morerong o moholo oa tanka ea mobu oa LNG oa 200,000.
Sebaka sa morero sa 9% sa nickel LNG marine tanka
Sebaka sa morero sa 9% sa nickel LNG marine tanka
9% ea tšepe ea tšepe ea LNG sebaka sa morero oa tanka ea mobu
Boleng bo botle, mefuta e mengata e fapaneng, lihlahisoa tse fapa-fapaneng le litharollo, potoloho e khuts'oane ea phepelo le ts'ebeletso e inehetseng le e nahanang, a re "emeng" tseleng ea ho kenya lisebelisoa tse phahameng tsa tjheseletsa, re ke ke ra lebala sepheo sa mantlha, ho etsa pele, ho ba teng. pula-maliboho oa lisebelisoa tsa ho cheselletsa tse phahameng, lumella lihlahisoa tse ngata le tse betere ho bula lefatše.
Nako ea poso: Nov-28-2022