1. Hōʻikeʻike
ʻO A217 Cat Cat Steels WC6 a me WC9 (ʻO ka pōkole o kaʻoihana no ka 1¼cr-½ a me 2Holecr-1MO, Pauliu) ke kumu o nā mea i kohoʻia-mory cr-mo nā mea kilokilo no ke kaomiʻana i nā mea i hoʻopaʻaʻia i ka lawelawe ma mua o keʻano kiʻekiʻe.
Ua kohoʻiaʻo WC6 kahi e koiʻia ai ka paʻakikī maikaʻi a me ka ikaika o ka ikaika a me ka ikaika ~ 520-540 ° C;
Hāʻawiʻo WC9 i ka ikaika kiʻekiʻe kiʻekiʻe a me ka paleʻana o ka oxidation a ua hoʻohanaʻia ma kahi e pili ana i ka lawelawe ~ 550-580 ° C.
Hoʻohanaʻia ka hoʻohana ponoʻana o kēia mau mea i keʻano he nui hana hanana, ʻO ka mālama wela a me ka hoʻopaʻiʻana i ka hoʻopaʻi E like me ka hanaʻana o keʻano o keʻano o keʻano.
Hoʻohālikelike kēia loiloi wc6 vs wc9 mai metallirgy a me nā waiwai ma o ka fabrication, Hoʻohana, Nā koho hoʻokūkū, a me ke alakaʻi aʻoaʻo kūpono.
2. He aha nā A217 Alloy i nā mea a nā mea kūʻai akuʻo WC6 a me WC9?
Astm Acker Contexxt Contexxt
Astm A217 / Asme sa217 ʻo ia ka mea iʻikeʻia e pili ana i ka hoʻopiliʻana Martestitic a me Austetitic Alloy i nā mea nānā
ma mua Ke hoʻomau nei i nā'āpana-ʻOle, flanges, KahawaiOli, Nā poʻomanaʻo, a me nā mea hana i hōʻikeʻia lawelawe kiʻekiʻe (≥343 ° C / 650 ° F).
- NA PONO IA KA HOU: I hoʻopuka muaʻia 1937, ʻO ka maʻamau ka mea maʻamau i hoʻopaʻaʻia, me ka 2024 hōʻano hou Hoʻouka i nā mea hoʻokūkū hoʻohui, ʻO nā pono momona wela,
a me nā waiwai waiwai e hoʻopili ai i nā hana me ka hana o ka ikehu o ka ikehu, komo ʻO ka hanauna o ultra-supercritical mana a hele mai nā mea hana holoholona holoholona. - I loko o keʻano maʻamau, Wc6 a me wc9 haule ma lalo o ka Marterestitic CR-Mo Nalu kolender.
Like me Nā helu Austetitic (E.g., Kūpono, Cn7m) e hilinaʻi nei i ka nickel kiʻekiʻe (>9 wt%) No ka paleʻana o ka corrosioni,
ʻO nā Alloys Alloys low ni (<0.5 wt%) a loaʻa i kā lākou hana mua mai Chromium (Cr) and Mybridelu (Mo) Apana.
Ke wehe nei kēia kumu kūʻai kālā iā WC6 / WC9 i kūpono no loa-mokula, Nā wahi i hoʻopauʻia, kahi Austetetitics.
3. Chempitition o ka chinecy o A217 wc6 vs wc9
'Ōlelo NA HUI NUI ma waena o WC6 a me WC9 Alloys e moe mua i kā lākou kinohi, ʻO nā Goaverns 'Āpana Micropsrung, pale pale, ʻano oxidation, a me ka wellingbility.
Nā Kūlana Kūlana Nominal (Astm A217)
| Mua | Wc6 (1.25Cr-0.5mo) (wt%) | Wc9 (2.25Cr-1MO) (wt%) | Hana ma alloy |
| KālekaʻAʻI (C) | 0.15 - 0.30 | 0.15 - 0.30 | Hāʻawi i ka paʻakikī o MartEnsitic a me nā hana i nā kaʻa no ka ikaika; ʻO ka mea nui o ka carbon ka nui o nā carbon. |
| Mang kāne (Mn) | 0.50 - 1.00 | 0.50 - 1.00 | Hoʻomaikaʻi i ka paʻakikī a me nā hana e like me ka deoxidizer; Hoʻonui loa i ka ikaika o ka creep. |
| Silikino (A) | 0.50 - 1.00 | 0.50 - 1.00 | E hoʻonui i ka paleʻana (Sio₂ kiʻi pena) a hoʻoikaika i nā mea ferrite ferrite. |
| Chromium (Cr) | 1.00 - 1.50 | 2.00 - 2.50 | Hoʻomaikaʻi i ka oxidation a me ke kū'ēʻana; stabilizes carabiedes (₇C₃, ₂₃C₆). |
| Mybrideum (Mo) | 0.44 - 0.65 | 0.90 - 1.20 | Hāʻawi i ke kū'ēʻana o ka creep; nā mea lawe mo₂C e pale aku i ka pā o ka palaoa palaoa. |
| Nickel (I) | ≤ 0.50 | ≤ 0.50 | Nā Kūlana Kūʻai; hoʻomaikaʻi i ka paʻakikī akā kaupalenaʻia e pale i ka austente. |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 | Kāohiʻia i ka manaʻoʻino; ʻO ke kumu nui o ka hukiʻana i ka wela i ka wā o ke kauʻana / WELDING. |
| Phoshorus (P) | ≤ 0.030 | ≤ 0.030 | Kāohiʻia i ka manaʻoʻino; Ke alakaʻi nui nei i nā mea embrittlement ma keʻano o ka lawelawe. |
| 'Eron (Lia) | Kaulike | Kaulike | Hoʻokumu i ka Ferritic / MartItic Matrix. |
4. Nā Pīkuhi Propertinies & ʻO keʻano o keʻano o ka heleʻana o A217 wC6 vs WC9
ʻO ka lumi o ka mahana
ʻO nā WC6 a me WC9 a me WC9 mau a WC9 e hoʻolālāʻia e hāʻawi ikaika ikaika a me ka paʻakikī i nā kūlana lawelawe a me nā lawelawe lawelawe.
ʻO nā waiwai ma lalo nei mai nā koina ACM a A217 a me nā hana hana ma hope o ka hana wela wela.
| Waiwai | Wc6 (1.25Cr-0.5mo) | Wc9 (2.25Cr-1MO) | Nā'ōlelo'ōlelo |
| Ikaika ikaika (Mpa) | 485 - 655 | 585 - 760 | ʻO WC9 he nui cr & MO → E hoʻoikaika i ka hana ikaika ikaika. |
| Ka ikaika (0.2% Kahiki, Mpa) | ≥ 275 | ≥ 380 | ʻOi aku ka kiʻekiʻe o ka cr / mo i ka wc9 e hoʻonui i ke kū'ē. |
| Ewangantion (%) | 18 - 22 | 17 - 20 | Wc6 liʻiliʻi liʻiliʻi; ʻO WC9 ka mea ikaika loa akāʻo ka ductile. |
| Hālulu (HB) | 150 - 190 | 170 - 220 | ʻO WC9 ke nānā aku nei, e hōʻike ana i ka density kiʻekiʻe kiʻekiʻe. |
| ʻO keʻano V-Notch ImPact ikehu (J, T) | 40 - 60 | 35 - 50 | Uaʻoi aku ka maikaʻi o WC6. |
Ka ikaika kiʻekiʻe-kiʻekiʻe & Pale pale
I ka lawelawe kiʻekiʻe, ʻO nā waiwai Rupture Breeture kīleʻa hoʻolālā hoʻolālā No nā mea e koi ai i nā mea e like me nā valves, Nā poʻomanaʻo, a piping.
| Waiwai | Wc6 (1.25Cr-0.5mo) | Wc9 (2.25Cr-1MO) | Nā'ōlelo'ōlelo |
| ʻO ka lawelaweʻo Max hoʻomau (° C) | ~ 538 ° C (1,000 ° F) | ~ 595 ° C (1,100 ° F) | Wc9 e hoʻokaʻawale i nā kiʻekiʻe kiʻekiʻe ma muli o 2.25% Cr + 1% Mo. |
| 100,000 h humukupo kaho @ 538 ° C | ~ 85 mpa | ~ 120 mpa | Hōʻikeʻo WC9 ~ 40% kiʻekiʻe kiʻekiʻe o Cupture Cuppture. |
| 100,000 h humukupo kaho @ 595 ° C | ʻAʻole i'ōleloʻia (rupture <50 Mpa) | ~ 55 mpa | Ua kūponoʻo WC9 i 595 ° C; Ua nalowaleʻo WC6. |
| ʻO ka pale oxidation | Loli | High | ʻO kaʻike (2.25% ma wc9) hana hou i nā kiʻi cr₂o₃. |
5. Ke hoʻololiʻana i kaʻenehana o A217 wC6 vs WC9
Ka hana kūleʻa a me ka laweʻana o Astm A217 papa inoa WC6 a me WC9 Alloy Alloy i nā kālaki hilinaʻi Ua hoʻohanaʻia i kaʻenehana hoʻoiliʻana pololei.
No ka mea, ua hoʻohanaʻia kēia mau makemake loea, ka mahana kiʻekiʻe, Ke hoʻomau nei i nā'āpana e like me nā valves, Nā poʻomanaʻo, Nā kāpenaʻo Turbine, a me nā mea hoihoi hou, ʻO nā mea liʻiliʻi liʻiliʻi e hiki i ke kaʻina hana ke alakaʻi i ka hikiʻole o ka maikaʻiʻole.
Welding: Ke pale nei i ka britlet Britled a me ka hoʻopunipuni
- Prereat: Pono nā'āpana nui i ka preheat (maʻamau 180-250 ° C) E hoʻolōʻihi i ka hōʻoluʻolu a hōʻemi i ka hydrogen-indided and Martiste form.
ʻO ka prehat preheat e hilinaʻi ana i ka mānoanoa, 'āpana'āpana, a me ke kaʻina hana. - Nā palehaʻana: E hoʻohana i nā mea uila haʻahaʻa-hydrogen / ʻO nā metala kiko'ī kūikawā kūikawā no ka lawelawe o CR-Mo-Mo-Mo-Mo-Mo-Creep.
E koho i nā mea kiʻi kiʻi i kūpono me ke kumu hao kilokilo a me nā waiwai e pono ai. - ʻO ka mana hoʻomalu: Mālama i loko o nā palena kūpono e pale ai i ka paʻakikī.
- Pwht (Post ka wela wela): Ke kākauʻana ma nā hihia lawelawe kiʻekiʻe kiʻekiʻe kiʻekiʻe.
Hoʻihoʻiʻo PWTH i ka huhū iā Haz a hōʻemi i keʻano kaumaha o ke kaumaha 600-700 ° C Nā haʻona (Pono ke kaʻina hana;
Ke hilinaʻi nei ka manawa ma ka mahana ma ka mānoanoa o ka pauku). Pono e hoʻokōʻiaʻo PWLT PWT i nā WPS / PQR. - Hōʻalo i ka britlet brittle: Hiki i ka wikiwiki wikiwiki ke hana i ka Martempered untempered ma haz-hence preheat a me pwht preheat a me pwht.
Machimen: ʻO ka paʻakikī paʻakikī a me ka hana
- ʻAno ma hope o ht: ʻO ka mardite martide martiste / Bainite ua ikaika nui; E hoʻohana i nā mea hana kaʻa kūpono, ʻO nā wikiwiki haʻahaʻa haʻahaʻa a me ka wai goood.
- Kaohi: Pono ka machining no ka hikiʻole ke wehe i ka wā e wehe ai i keʻano o keʻano o keʻano hoʻomaha.
- Kūlike loa ka helehelena: Hōʻalo i nā wahi e hoʻohālikelike ai i nā mahana e hiki ai ke hoʻopaʻa hou i nā papa.
Mau no nā manaʻo
Wc6 a wc9 hana pinepineʻia e like me nā'āpana nui-nui (Nā Vilves, Nā pahu Steam, turbine cames i 10 Tons).
Kauhi koi i ka mana o ke kaʻina hana me ka paleʻana i nā hemahema melallirgical.
- Hana hoʻomaʻamaʻa: No nā sarings koʻikoʻi, E hoʻohana i ka VIM / var a iʻole argon-shall-shaeld e hoʻohaʻahaʻa i ka hoʻopiliʻana i nā haumia a me nāʻike komo. Hoʻomaʻemaʻe i nā kukui maʻemaʻe e hōʻemi i nā wahi momona a me ka hoʻomakaʻana.
- ʻO Gadge a me ke kiʻiʻana: Hoʻolālā no ke kūpaʻa kuhikuhi, Loaʻa i ka hānaiʻana a me nā chills e hoʻopau i ka poshity shrink.
Pono pinepine nā hale kūʻai no ka lawelaweʻana i ka lawelawe i nā pae iʻaeʻia. - ʻO ka hana wela ma hope o ka hoʻoleiʻana: ʻO nā hana maʻamau / anneal e hōʻoluʻolu i nā kaumaha a me ka hoʻoponoponoʻana i nā microstructure ma mua o ka huhū.
Hoʻokomo ka hana hope loa i ka uku kaulike o ka ikaika / paʻakikī. - Ndt: Hoʻoili pūnaewele, ʻO ka ho'āʻoʻana o Ultrasonic a me kaʻaeʻana i nā koiʻana i kēlā me kēia code i koiʻia no nā helu koʻikoʻi.
6. ʻO ka hana wela & ʻO ka hanaʻana o A217 wc6 vs wc9
ʻO ka hana wela
ʻO ka hana o Astm A217 wc6 (1.25Cr-0.5mo) a me wc9 (2.25Cr-1MO) mau alloys hilinaʻi nui i ka mālama wela, ʻO nā mea hele i kā lākou microstructure, Nā Pīkuhi Propertinies, a me ke ola lawelawe kiʻekiʻe.
| 'Lelo | Wc6 (1.25Cr-0.5mo) | Wc9 (2.25Cr-1MO) | Kumu |
| Austetinizing | 900-955 ° C (1,650-1,750 ° F), honu 2-4 h | 930-980 ° C (1,710-1,800 ° F), honu 2-4 h | Wehe i nā kaʻa, homogenize chemistry, E hoʻomaʻamaʻa i nā kīʻaha |
| Queech | ʻO ka ea anuanu a iʻole kaʻailaʻaila no nā'āpana paʻa | Eamaka (Nā Kaʻi Hou), aila / polymer no nā'āpana kaumaha | Hōʻalo i ka austente, ho'ēmi i kaʻokiʻana |
| Huhū | 660-705 ° C (1,220-1,300 ° F), 2 Nā Pāʻani Pūnaewele | 675-740 ° C (1,245-1,360 ° F), 2 Nā Pāʻani Pūnaewele | Precipitate secondary carbides, improve creep resistance, E hōʻemi i ka brittleness |
| Pwht (Welding) | 621–677 °C (1,150–1,250 °F) | 650-705 ° C (1,200-1,300 ° F) | Relieve stresses, temper HAZ martensite |
Mālamaʻona
Although WC6 and WC9 provide inherent oxidation and creep resistance, Kālā papaaina can extend component life in corrosive or erosive environments.
| Aoha ai | Kūlana | Pōmaikaʻi | HE KAHUI |
| Pana pua / Crit clusting | High-velocity abrasive particles | Removes oxide scale, improves surface cleanliness, enhances fatigue life | Post-heat treatment cleaning |
| Nitriding | Gas or plasma nitriding (500-550 ° C) | Improves surface hardness (a i 900 Him), E kāʻei i ke kū'ē | Nā noho kūʻai Valve, moving parts in turbines |
| Aluminizing | Pack cementation or vapor deposition | Forms protective Al₂O₃ layer, increases oxidation resistance >600 ° C | Power plant superheaters, nā mea hana holoholona holoholona |
| Chromium-Rich Overlay Welding | Hardfacing with high-Cr electrodes or strip cladding | Enhances hot corrosion and erosion resistance | Boiler valves, refinery equipment |
| Diffusion Coatings (AL, A, Cr) | High-temperature diffusion process | Hoʻomaikaʻi hou i keʻano o ka corrosion a me ke kū'ēʻana | Nā'āpana furnace |
| Nā Palapala Kūʻai'ormal (Hvof, Plasma) | WC-CO, Kālā CRANCC₂-NICR CERSIVERS | Kū aʻe i ka slurry slurry a me ka laweʻana | Nā mea hana pump, Nā Vurry Valves |
7. Nā noi maʻamau o A217 wC6 vs WC9
A217 WC6 a me WC9 PLLOS martestitic cr-m haʻahaʻa haʻahaʻa-alloy mīkini hana no ka mahana kiʻekiʻe, ka lawelawe kiʻekiʻe.
Ko lakou hui o ʻO ka Microdite Martistat, ikaika ikaika, a me ke kūpaʻa e hoʻolilo iā lākou i loko mana pā'āʻu, petrochemimical, a me nā hana hana.
Ka oi hawaii
Wc6 (1.25Cr-0.5mo):
- Lawelawe subcritive lawelawe (Ç538 ° C)
- Nā'āpana:
-
- Nā poʻomanaʻo Boiler a me nā elbows
- ʻO ka mea nui a me nā mea hou
- ʻO Turbine canging nā'āpana no nā mea hana waena
Wc9 (2.25Cr-1MO):
- Supercritical a me Ultra-Supercrical Steam (538-595 ° C)
- Nā'āpana:
-
- ʻO nā poʻo kiʻekiʻe kiʻekiʻe a me nā poʻo hou
- Nā Vem Chest Veluves
- ʻO nā kāpenaʻo Turbine Inlet
Nā mea hana petrochemical a me nā mea hana hou
- Wc6:
-
- Nā'āpana furnace (Nā'āpana'āpana, nā keʻena hui)
- ʻO nā mea wela ma waena (Ç538 ° C)
- Wc9:
-
- Reactor a me nā meaʻaʻai e hana ai i ka hanaʻana i 595 ° C
- ʻO nā hale kūʻai hale kūʻai hale kūʻai
- ʻO nā alaloa kiʻekiʻe o nā petrochemical kiʻekiʻe
Nā mea hana uila
- Nā poʻo poʻo a me Mifollds: Ua hoʻohana nuiʻiaʻo WC6 a me WC9 Nā poʻomanaʻo Steam kahi a ke ea a me ke kaomi i ka uila.
- Nā mea kālepa i kauʻia: Nā'āpana'āpana, Nā Baffles, a koiʻia nā papa hana pale pale and thermmal momona, ʻO ka hanaʻana i kēia mau makemake.
- Nā Violer Valves a me Fitters: Polau, Gates, honua honua, a e nānā i nā Valves e hoʻohana i WC6 a WC9 paha ma muli o keʻano o ka hana.
Nā noi'ē aʻe'ē aʻe
- Nā ipu koʻikoʻi: Liʻiliʻi i nā ipu medium no ka subcritical / steam steam Ma ka hanauna holoʻokoʻa.
- Nā mea hana pā a me nā'āpana turbine: ʻO nā papa kiʻekiʻe kiʻekiʻe-kiʻekiʻe i nā noi a me nā noi a nā bairchemical a me nā noi.
- ʻO Furnace lāuaʻo Kiln nā'āpana: Kākoʻo a me nā hana kūloko i hōʻikeʻia hoʻonuiʻia nā mahana no ka hoʻonuiʻiaʻana.
Competative lawelawe lawelawe
| Alloy | ʻO ka lawelaweʻo Max hoʻomau | Ke kaumaha maʻamau | Nā'āpana maʻamau | ʻO ka mālamaʻana i ka'āina |
| Wc6 | 538 ° C (1,000 ° F) | 30 Mpa (4,350 Psi) | ʻO nā poʻomanaʻo Bubcritive Builer, Nā Vilves, ʻO nā'āpana cangine | Nitriding, alumina, pana pua |
| Wc9 | 595 ° C (1,100 ° F) | 30 Mpa (4,350 Psi) | ʻO ka Buiterical Builer / Reheter Baders, Nā Vilves, ʻO nā trubines kiʻekiʻe kiʻekiʻe | Overlay wilding, alumina, pana pua |
8. Loaʻa a me nā palena a me nā palena o A217 wC6 vs WC9
Maopopo i ka Loaʻa a me nā palena o wc6 a wc9 he koʻikoʻi no nā meaʻenehana a me nā mea hoʻolālā ke kohoʻana i nā mea ka mahana kiʻekiʻe, ʻO nā'āpanaʻoihana kiʻekiʻe.
Loaʻa
| Pili | Wc6 (1.25Cr-0.5mo) | Wc9 (2.25Cr-1MO) | Nā memo |
| Ka ikaika kiʻekiʻe | Maikaʻi loa i 538 ° C | ʻOi aku i luna 595 ° C | Ua makemakeʻo WC9 no ka steam supercrical |
| ʻO ka Microdite Martistat | Maikaʻi maikaʻi, kumaikalua | ʻOi aku ka ikaika kiʻekiʻe, liʻiliʻi haʻahaʻa haʻahaʻa ma mua o wc6 | E hōʻoiaʻiʻo i ka hilinaʻi ma lalo o ke kaomi a me keʻano o ke aloha |
| Pale pale | He kūpono no ka lawelawe subcritical | Ua kohoʻia no nā noi lōʻihi lōʻihi | Ua hōʻikeʻo WC9 i 10-15% kiʻekiʻe kiʻekiʻe o ke ola ma mua o ke ola kiʻekiʻe |
| Kumukūʻai-kūpono | Haʻahaʻa haʻahaʻa haʻahaʻa → hoʻemiʻia ke kumukūʻai | ʻOi aku ka kiʻekiʻe o nā kiʻi kiʻi kiʻi kiʻekiʻe | ʻO nā noi noi a nā noi kālā |
| Ke hoʻololi nei i ka lole | ʻO ka maʻalahi o ka ulana a me ka machining ma muli o ka lalo o lalo | ʻOi aku ka paʻakikī kiʻekiʻe a me nā mea hana → e koi hou i keʻano o ka mālamaʻana a me ka machining | Preheat a me pwht pono e pono ai noʻelua, Akāʻo WC9ʻoi aku ka uku |
| Corrosione / Oxidation kū'ē | Lawa no nā wahi a me nā wahi elima | Hoʻomaikaʻiʻia ma muli o nā mea kiʻekiʻe kiʻekiʻe | Hoʻonui hou nā mea hana i ka hana |
PAHUI
| Kaawe | Wc6 | Wc9 | Miomi / Nā memo |
| ʻO ka wela o ka lawelawe | Palena 538 ° C | 595 ° C max | ʻOi aku ka nui o nā palena i nā mea e lele ai a alakaʻi paha i ka deformation |
| Wawahua | Loli; Ponoʻo Preheat a me PWTH | ʻOi aku ka naʻau; ʻoi aku ka paʻakikī kiʻekiʻe a me nā cr e koi i ka crricter chericing | E hoʻohana i nā mea haʻahaʻa haʻahaʻa-hydrogen, Mālama i ka mahana o ka lehulehu |
| Markinpalibility | Maikaʻi no ka hana wela | Haʻahaʻa ma muli o ka paʻakikī kiʻekiʻe | E hoʻohana i nā mea hana kaʻa kaʻa / cbn a me nāʻokiʻoki i kohoʻia |
| ʻO ke kūleʻaʻana o ke kalaʻana (SCC) | Hiki i nā H₂s a iʻole nā mea waiwai a Chloride-waiwai | Like like, Hāʻawi i nā mea kiʻekiʻe e hāʻawi i ka hoʻomaikaʻiʻana | Hōʻalo i ka lawelawe me nā HNS >50 ppm a cl⁻ >100 ppm |
| Kālā | Ka waiwai | ʻOi aku ka nui ma muli o ke kiʻekiʻe kiʻekiʻe | Hoʻohana wc6 i ka wā e koʻikoʻi ai ka creep kiʻekiʻe kiʻekiʻe |
9. Hoʻohālikelike me nā mea hoʻokūkū hoʻokūkū
Ke kohoʻana ka mahana kiʻekiʻe, Ke hoʻomau nei i nā lako, E loiloi pinepine nāʻenehana i nā WC6 a me WC9 nā mea hoʻonaninani koho balota a me nā kila.
Nā mea hoʻokūkū hoʻokūkū
- ʻO ka hao hao (Cs): Haʻahaʻa-alilo, ka waiwai, kūpono no nā wela haʻahaʻa haʻahaʻa (<400 ° C), akā,ʻoi aku ka pale a me ke kū'ēʻana.
- ʻO nā papa keleawe chrisium-molybdenum (E.g., Astm A335 p11 / p22): Hoʻopaʻiʻia a iʻole nā mea hoʻokele paila ikaika, ʻoi aku ka kiʻekiʻe o ka cepsp ma mua o cs, ʻOi aku ka nui ma mua o WC9 Sandings.
- ʻO nā mea kanu lāʻau austetitic (304, 316, 321, 347): Ke kū'ē neiʻo Corrosion Corrossion, kūpono no nā wela wela (Ç / ° C), ʻO ka ikaika haʻahaʻa haʻahaʻa a me ka paleʻana o ka paleʻana i hoʻohālikelikeʻia me WC9.
- Nickel alloys (Actoel 600/625, Hailani): ʻO keʻano o keʻano o keʻano a me keʻano kiʻekiʻe kiʻekiʻe (A hiki i 700-1,000 ° C), akā,ʻoi aku ka paʻakikī a paʻakikī i ka lole.
- Nā mea hele haʻahaʻa haʻahaʻa haʻahaʻa-alloy (E.g., Astm A217 papa C12, Cn7m): Nā mea kūʻai akuʻo Austetitic, ʻO ka paleʻana o ka corrossion maikaʻi akā he ikaika haʻahaʻa no ka lawelawe kiʻekiʻe.
Pākuhi Hoʻohālikelike Hoʻolālā
| Waiwai / Pili | Wc6 (1.25Cr-0.5mo) | Wc9 (2.25Cr-1MO) | ʻO ka hao hao | Cr-m ceel (P22) | Austetitic insinless (316/321) | Nickel alloys (Actoel 625) |
| Max Serbert Temp (° C) | 538 | 595 | 400 | 565 | 600 | 980 |
| Ikaika ikaika | Loli | High | Hoʻohaʻahaʻa | Loli | Hoʻohaʻahaʻa | Kiʻekiʻe loa |
| Ikaika ikaika (Mpa) | 500-600 | 550-650 | 400-500 | 500-600 | 500-600 | 700-900 |
| ʻO Charpy impact @ 20 ° C (J) | >40 | >40 | 30-50 | 40-50 | 40-80 | 50-100 |
| ʻO ka pale oxidation | Loli | Maikaʻi loa | Ilihune | Loli | Maikaʻi loa | Kūpono |
| Ke kū'ē neiʻo Corrosionion | Loli | Maikaʻi loa | Ilihune | Loli | Kūpono | Kūpono |
| Wawahua | Loli | Loli (koi pono i ka preheat / pwht) | Kūpono | Maikaʻi loa | Kūpono | Paʻakikī |
| Kālā | Kūpono | High | Hoʻohaʻahaʻa | Kūpono | High | Kiʻekiʻe loa |
| ʻO ka paʻakikī o ka mea paʻakikī | Loli | High | Hoʻohaʻahaʻa | Kūpono | Kūpono | Kiʻekiʻe loa |
| Nā noi maʻamau | Nāʻaiʻana, Nā Vilves, subcritical / poʻo poʻomanaʻo | ʻO nā poʻo o Supercritist / Reheter, Nā kāpenaʻo Turbine | Nā kīʻaha haʻahaʻa haʻahaʻa, Piping | Ke kaomiʻana i ka piping, Nā poʻo o ke poʻo | SerOSSAIVER, ʻO keʻano maikaʻi | ʻO nā mea hana kiʻekiʻe kiʻekiʻe-Temp, Ke kālepaʻana |
10. Hopena
A217 wC6 vs wc9 ka hana o nā hana ma waena o nā'ōnaehana waena o keʻano, E hoʻopau i ka palekana, ka hana pono o nā mea kanu mana, resineries, a me nā pono holoholona holoholona.
Ko lakou mau holomua holomua mai:
- I kohoʻia: Cr a me mo e hāʻawi i ka oxidation a me ka creep pale pale i ka 400-595 ° C lawelawe, ʻO ka maʻamau maʻamau maʻamau no nā noi kiʻekiʻe o kaʻoihana.
- Hana maikaʻi maikaʻi: ʻO ka maikaʻi o nā mea hoʻokūkū maikaʻiʻo Martisted martibred, paʻakikī, a me ka paʻa-i hōʻoiaʻia e nā makahiki he mau makahiki o ka astm / asme ho'āʻo a me ka lawelaweʻoihana.
- Kumukūʻai-kūpono: ʻO kahi'āina waena ma waena o nā mea kūʻai kāleka haʻahaʻa haʻahaʻa haʻahaʻa a me ke kumukūʻai kiʻekiʻe kiʻekiʻe, ka ho'ēmiʻana i ka lcc ma mua o ka hālāwaiʻana i nā kūlana palekana.
ʻOiaiʻo nā alloys holomua (E.g., P91, nā mea kanu nckel) eʻae ana i ka wc6 / wc9 i ka mahana kiʻekiʻe-kiʻekiʻe-kiʻekiʻe (>600° C) noi, Wc6 / wc9 i noho mauʻole no 400-595 ° C lawelawe - kahi e hana ai kā lākou hana, huhu, a me ke kumukūʻai kumukūʻai me nā pono hana.
No nā poʻeʻenehana a me nā hui hui, kūleʻa me wc6 / wc9 hinges ma ke kūpaʻaʻana e pili ana i ka astm / asme mau kūlana no ka hoʻonohonohoʻana, ʻO ka hana wela, a me ka hanaʻana-hōʻoia i kēia mau mea hana e hāʻawi i ko lākou mau makahiki he 15-25 makahiki makahiki.
FaqS
Hiki iā WC6 a me WC9 e hui pūʻia a iʻole i ke kila carbon?
ʻAe, akā pono nā hui: E hoʻohana i nā metala spetler kūpono, prereat, nā mea hoʻohālikelike a me nā pwht.
Pono nā hui kīwaha e pono ai e nānā i ka hoʻonuiʻana i ka hoʻonuiʻana, ʻO nā pilikiaʻo Galvanna a me HAZ metallirgy. E hahai i nā uku WPS / PQR a me nā koi code.
He aha ka pwht he maʻamau ma hope o ka hoʻohanaʻana?
Hoʻohana maʻamau ka hoʻomaʻamaʻaʻana i ka hana e hoʻowalewale i ka pwtating pwht i ka 600-700 ° C Nā haʻona.
ʻO keʻano nui o ka mahana / manawa e hilinaʻiʻia ma ka mānoanoa a pono e hahai i ke kaʻina hana; E kamaʻilio mau i ka mea kūʻai aku / code.
Pehea ka lōʻihi o kahi kino wc9 550 ° C?
Ke hilinaʻi nei ke ola lawelawe i ke kaumaha, Kālā, ke kūlohelohe a me ka mālamaʻana i ka maikaʻi.
Ua hoʻolālāʻiaʻo WC9 no ke ola lōʻihi ma mua o WC6 i nā kiʻekiʻe kiʻekiʻe, Akā e noʻonoʻo ana i ke ola e koi i kaʻikepili Clup-Rupture a me ka hoʻolālāʻana i ke kaumaha; hana i nā loiloi kūpono-no-lawelawe no nā mea hana koʻikoʻi.
He wc6 / wc9 kūpono kūpono no nā mea waiwai chloride-waiwai?
ʻAʻole lākou ka koho maikaʻi loa no ka chloride chloride (pitting / ssc). ʻO nā mea hoʻokūkū Fulex Fuplex a iʻole nā Nickel Alloys kahi mea e makemake nui ai i kahi o ka corrosside style strosion.
He aha nā mea e pono ai nā mea e lawe ai?
E koi i ka loiloi Chemical (Mtc), terseile a me ka paʻakikī (E like me ka mea i hōʻikeʻia), radiographical / ut no nā kāʻei kūloko, Nā loiloi dimensional. Kahi e pili ai, ʻO ka ho'āʻoʻana i ka ho'āʻoʻana a me PMI.
