W e bolela ho ngola, ho lahla;
C-KHABONE TS'EPE ea carbon, A, b, le C li bontša boleng ba matla a mofuta oa tšepe ho tloha tlase ho ea holimo.
WCA, WCB, WCC li emela tšepe ea khabone, e nang le ts'ebetso e ntle ea ho tjheseletsa le matla a mechini. ABC e emela boemo ba matla, WCB e sebelisoang haholo. Thepa ea phaephe e tsamaellanang le WCB e lokela ho ba A106B, 'me thepa e tsamaellanang le eona ea ho betla ke A105. E loketse li-valve tlas'a mocheso le khatello e tloaelehileng.
WC6 ke ho etsa tšepe e kopantsoeng. E na le matla a ho hanyetsa mocheso o phahameng le thepa ea antioxidant 'me e loketse li-valve tlas'a maemo a mocheso o phahameng le khatello e phahameng.
Thepa ea phaephe e tsamaellanang e ka ba A355 P11, 'me karolo ea ho betla ke A182 F11;
Ho phaella moo, ho na le WC9, tšepe ea alloy e nang le mocheso o phahameng, e lekanang le hoo e ka bang A355 P22, 'me forging e lokela ho lumellana le A182 F22.
Ho lahla ka welded ka WC ho na le matla le ho tiea ho hoholo. Ho loketse lits'ebetso tsa indasteri tse tloaelehileng.
LCB/LCC (ASTM A352) Tšepe ea khabone e mocheso o tlase e na le matla a tlase a ho tiea le ho hanyetsa mafome. E loketse lits'ebetso tsa mocheso o tlase haholo, joalo ka khase ea tlhaho ea LPG (LNG).
Li-valve tsa Zfa li hlahisa li-valve tse tloaelehileng tsa lirurubele tsa WCB bakeng sa bareki lefatšeng ka bophara ka mocheso o tloaelehileng, 'me re ka boela ra hlahisa li-valve tsa lirurubele tsa LCC bakeng sa Bareki ba tsoang Leboea la Europe joalo ka Russia, Finland jj.
ka holimo ke WCBChina wafer serurubele belofole LCCSerurubele sa China lugvalafo.
Lisebelisoa tsa tšepe ea carbon le thepa e entsoeng ka tšepe e sebelisoang hangata li-valve
| Boemo ba Thepa | Tsebiso | Nomoro e Tloaelehileng | Nomoro ea Boitsebiso | ||
| ho lahla | Chaena | GB/T 12229 | WCA | WCB | WCC |
| ZG205-415 | ZG250-485 | ZG275-485 | |||
| Amerika | ASTM A216/A216M | WCA | WCB | WCC | |
| UNS J02502 | UNS J03002 | UNS J02503 | |||
| E entsoe | Chaena | GB/T 12228GB/T 699 | 25 25Mn 35 40 A105 | ||
| Amerika | ASTM A105/A105M | A105 | |||
Likereiti tsa thepa ea tšepe e lahliloeng ka mocheso o tlase le mocheso o sebetsang
| mofuta | C | C | C-Mn | C-Mo | 2.5Ni | Ni-Cr-Mo | 3.5Ni | 4.5Ni | 9Ni | Cr-Ni-Mo |
| Nomoro ea Boitsebiso | LCA | LCB | LCC | LC1 | LC2 | LC2-1 | LC3 | LC4 | LC9 | CA6NM |
| Nomoro ea UNS | J02504 | J03303 | J02505 | J12522 | J22500 | J42215 | J31550 | J41500 | J31300 | J91540 |
| Mocheso o sebetsang ℃ | -32 | -46 | -46 | -59 | -73 | -73 | -101 | -115 | -196 | -73 |
Litafole tsa papiso tsa ho betla le ho lahla thepa ea ASTM tse sebelisoang hangata li-valve (ASME B16.5)
| Ho lahlela ka ASTM | ASTM e entsoe | Nomoro ea Sechaena | Mocheso o sebetsang ℃ | Mokhoa o sebetsang | ||||
| Tšepe ea Khabone | ||||||||
| A216 WCB | A105 | 20 | -29~427 | Metsi, mouoane, moea le lihlahisoa tsa peterole | ||||
| Tšepe ea carbon e mocheso o tlase | ||||||||
| A352 LCB | A350 LF2 | 16Mn | -46~343 | Mocheso o tlase o mahareng | ||||
| A352 LCC | A350 LF2 | 16Mn | -46~343 | Mocheso o tlase o mahareng | ||||
| Tšepe ea motsoako e nang le mocheso o phahameng | ||||||||
| A217 WC1 | A182 F1 | 20MnMo | -29~454 | Mocheso o phahameng le khatello e phahameng | ||||
| A217 WC6 | A182 F11 | 15CrMo | -29~552 | Mocheso o phahameng le khatello e phahameng | ||||
| A217 WC9 | A182 F22 | 10Cr2Mo1 | -29~593 | Mocheso o phahameng le khatello e phahameng | ||||
| A217 C5 | A182 F5 | 1Cr5Mo | -29~650 | Sehatsetsi se phahameng sa mocheso o senyang | ||||
| tšepe e sa hloekang ea martensitic | ||||||||
| A217 CA15 | A182 F6a | 1Cr13 | -29~371 | Matla a tlase ho feta 304 kaholimo ho 450℃ | ||||
| Tšepe e sa hloekang ea austenitic (C≤0.08) | ||||||||
| A351 CF8 | A182 F304 | 0Cr18Ni9 | -196~537 | Sesebediswa se senyang | ||||
| A351 CF3 | A182 F304L | -196~425 | Sesebediswa se senyang | |||||
| A351 CF8M | A182 F316 | 0Cr18Ni12Mo2Ti | -196~537 | Sesebediswa se senyang | ||||
| A351 CF3M | A182 F316L | -196~425 | Sesebediswa se senyang | |||||
| Tšepe e sa hloekang ea austenitic e tlase haholo (C≤0.03) | ||||||||
| A351 CF3 | A182 F304L | 00Cr18Ni10 | -196~427 | Sesebediswa se senyang | ||||
| A351 CF3M | A182 F316L | 00Cr18Ni14Mo2 | -196~454 | Sesebediswa se senyang | ||||
| motsoako o khethehileng | ||||||||
| A351 CN7M | B462 Gr. NO8020(TŠEPE 20) | -29~149 | Mecha ea oxidizing le mahloriso a fapaneng a sulfuric acid | |||||
| A494 M-30C(Monel) | B564 Gr. NO4400 | -29~482 | Asiti ea hydrofluoric, metsi a leoatle | |||||
Ela Hloko: 1) tlhophiso ea thepa ea 'mele ea valve e entsoeng ka mokhoa o tiileng, ha ho bonolo ho ba le liphoso, litekanyo tsa sebopeho ha li na meeli ea hlobo, ts'ebetso e tšepahalang ea khatello, e sebelisoa haholo bakeng sa khatello e phahameng, maemo a oksijene, bophara bo bonyenyane kapa sehlopha se seng se senyenyane sa li-valve tlhahisong ea mecha ea litaba ea mocheso o phahameng, khatello e phahameng kapa mocheso o tlase kapa e khethehileng tlas'a khetho ea forging; ho lahla hangata ho sebetsa feela khatellong e mahareng le e tlase, 'me ho sebelisoa bakeng sa ho bopa li-valve ka mokhoa o tloaelehileng tlhahisong ea bongata.
(2) Phapang pakeng tsa thepa A351 CF3M le A182 F316L: maemo a mabedi a tsamaellana le thepa ke tshepe e sa ruseng ya 316. CF3M e bontsha hore ho betla, ho sebediswang hangata e le thepa ya valve. Khoutu e tsamaellanang ya tshepe ya ho betla ke A182 F316L. ASTM A216 WCB ke ho betla, mme ho betla ha yona ke A105; ho betla ha SS304 ke A351-CF8, mme ho betla ke A182-F304.
Nako ea poso: Pulungoana-07-2023