ʻO NiCu 400 kahi huila nickel-copper (e pili ana i 67% Ni - 23% Cu) i kū i ka wai kai a me ka mahu ma nā wela kiʻekiʻe a me ka paʻakai a me nā hopena caustic. ʻO Alloy 400 kahi mea hoʻoheheʻe paʻa paʻa i hiki ke paʻakikī wale i ka hana anu. Hōʻike kēia nickel alloy i nā hiʻohiʻona e like me ke kūpaʻa corrosion maikaʻi, maikaʻi weld-hiki a me ka ikaika kiʻekiʻe. ʻO ka haʻahaʻa haʻahaʻa i loko o ke kahe wikiwiki ʻana i ka brackish a i ʻole ka wai kai i hui pū ʻia me ke kūpaʻa maikaʻi loa i ka pohā ʻana o ke koʻikoʻi-corrosion i ka nui o ka wai maʻemaʻe, a ʻo kona kūʻē ʻana i nā ʻano ʻino like ʻole i alakaʻi i kona hoʻohana ākea i nā noi kai a me nā mea hoʻonā chloride non-oxidizing ʻē aʻe. ʻO kēia nickel alloy he mea kūʻokoʻa i ka hydro-chloric a me ka hydro-fluoric acid i ka wā e hoʻopau ʻia ai. E like me ka mea i manaʻo ʻia mai kona ʻike keleawe kiʻekiʻe, ua hoʻouka koke ʻia ka alloy 400 e ka nitric acid a me nā ʻōnaehana amonia.
NiCu 400 mea nui mechanical waiwai ma subzero wela, hiki ke hoʻohana 'ia i loko o ka mahana a hiki i 1000 ° F, a me kona hehee ana o 2370-2460° F. Eia naʻe, Alloy 400 mea haʻahaʻa i ka ikaika i loko o ka annealed kūlana no laila, he ano o ka huhu. hiki ke hoʻohana ʻia e hoʻonui i ka ikaika.
Nā hiʻohiʻona o NiCu 400
- Kūleʻa i ka wai kai a me ka mahu i nā wela kiʻekiʻe
- Kūleʻa maikaʻi loa i ka wai paʻakai a i ʻole ka wai kai
- Kūleʻa maikaʻi i ke koʻikoʻi i ka pohā ʻana i ka wai maʻemaʻe
- Kūʻē kūʻē i ka hydro-chloric a me ka hydro-fluoric acid ke hoʻopau ʻia lākou
- Kūʻē maikaʻi i ka paʻakai kūʻokoʻa a me ka paʻakai alkaline a me ke kūpaʻa kiʻekiʻe i ka alkali
- Ke kū'ē i ka chloride i hoʻoulu ʻia i ke koʻikoʻi ʻinoʻino
- ʻO nā waiwai mechanical maikaʻi mai nā mahana sub-zero a hiki i 1020° F
- Hāʻawi i kahi kū'ē i ka hydro-chloric a me ka sulfuric acids i nā mahana haʻahaʻa a me nā ʻike, akā kakaikahi ka mea i koho ʻia no kēia mau ʻakika.
He moʻolelo lōʻihi kēia o ka hoʻohana ʻana ma ke ʻano he mea pale i ka corrosion, mai ka hoʻomaka ʻana o ke kenekulia 20 i ka wā i hoʻomohala ʻia ai ma ke ʻano he hoʻāʻo e hoʻohana i ka ʻohe nickel maʻiʻo keleawe kiʻekiʻe. ʻO ka nickel a me ke keleawe ma loko o ka ʻohe i loko o ka ratio kokoke i hōʻike mua ʻia i kēia manawa no ka alloy.
Hoʻohui Kimia
C | Mn | S | Si | Ni | Cu | Fe |
---|---|---|---|---|---|---|
.30 ka nui | 2.00 max | .024 ka nui | .50 ka nui | 63.0 min | 28.0-34.0 | 2.50 ka nui |
ʻO NiCu 400 ke kūpale ʻana
NiCu Alloy 400ʻaneʻane pale ʻole i ka chloride ion stress corrosion ma nā kaiapuni maʻamau. ʻO ka maʻamau, ʻoi aku ka maikaʻi o kona pale ʻana i ka corrosion i ka hōʻemi ʻana i nā kaiapuni, akā ʻilihune i nā kūlana oxidizing. ʻAʻole pono ia i ka hoʻokahe ʻana i nā waikawa, e like me ka waikawa nitric a me ka nitrous. Eia nō naʻe, kūpaʻa ia i ka hapa nui o nā alkalis, nā paʻakai, nā wai, nā huahana meaʻai, nā mea kūlohelohe a me nā kūlana o ka lewa i nā mahana maʻamau a kiʻekiʻe.
Hoʻouka ʻia kēia huila nickel i nā kinoea lawe sulfur ma luna o 700° F a hoʻouka ʻia ka sulfur hoʻoheheʻe ʻia i ka alloy ma nā mahana ma kahi o 500° F.
Hāʻawi ʻo NiCu 400 e pili ana i ke kūpaʻa corrosion e like me ka nickel akā me ke kiʻekiʻe kiʻekiʻe o ka hana ʻana a me nā mahana a me ke kumu kūʻai haʻahaʻa ma muli o kona hiki ke hana ʻia.
Nā noi o NiCu 400
- ʻenehana moana
- Nā lako hana kemika a me ka hydrocarbon
- ʻO ka ʻaila hinu a me nā pahu wai hou
- ʻO nā ʻaila ʻuala
- ʻO nā mea hoʻomehana hoʻoneʻe
- ʻO nā mea hoʻomehana wai hānai paila a me nā mea hoʻololi wela ʻē aʻe
- ʻO nā kiwi, nā pamu, nā kumu, nā mea pono, a me nā mea hoʻopaʻa
- ʻOihana hoʻololi wela
- Nā mea hoʻoheheʻe chlorinated
- Nā hale kiaʻi hoʻoheheʻe ʻaila ʻaila
Hana NiCu 400
Hiki ke hoʻopili maʻalahi ʻia ʻo NiCu Alloy 400 e ke kinoea-tungsten arc, gas metala arc a i ʻole nā kaʻina hana pale metala me ka hoʻohana ʻana i nā metala hoʻopiha kūpono. ʻAʻohe pono no ka mālama ʻana i ka wela ma hope o ka weld, akā naʻe, ʻo ka hoʻomaʻemaʻe ʻana ma hope o ka wili ʻana he mea koʻikoʻi ia no ka pale ʻana i ka corrosion maikaʻi loa, inā ʻaʻole, aia ka pilikia o ka haumia a me ka embrittlement.
Hiki ke hana ʻia nā mea hana i hoʻopau ʻia i ka nui o nā ʻano mīkini i ka wā e hoʻomalu pono ʻia ai ka nui o ka hana wela a i ʻole ke anu a me ke koho ʻana i nā lāʻau wela kūpono.
E like me ka hapa nui o nā nickel alloys, ʻo NiCu 400 ka mea paʻakikī i ka mīkini a e hana paʻakikī. Eia naʻe, hiki ke loaʻa nā hopena maikaʻi loa inā hana ʻoe i nā koho kūpono no ka mea hana a me ka mīkini.
Nā kikoʻī o ka ASTM
Paipu Smls | Pipe Weled | Tube Smls | Tube Weld | Pepa/Pula | Bar | Ke kalaiwa ana | Hoʻopili | Uea |
---|---|---|---|---|---|---|---|---|
B165 | B725 | B163 | B127 | B164 | B564 | B366 |
Na Waiwai Mechanical
ʻO ka wela lumi maʻamau ʻo Tensile Properties o Annealed Material
ʻAno Huahana | Kūlana | Uku (ksi) | .2% Hua (ksi) | Elongation (%) | Paʻakiki (HRB) |
---|---|---|---|---|---|
Rod & Bar | Hana ʻia | 75-90 | 25-50 | 60-35 | 60-80 |
Rod & Bar | Hoʻokuʻu ʻia ke koʻikoʻi i ke anu | 84-120 | 55-100 | 40-22 | 85-20 HRC |
Pāpā | Hana ʻia | 70-85 | 28-50 | 50-35 | 60-76 |
Pepa | Hana ʻia | 70-85 | 30-45 | 45-35 | 65-80 |
Paipu & Paipu Holoʻole | Hana ʻia | 70-85 | 25-45 | 50-35 | 75 ka nui * |
Ka manawa hoʻouna: ʻAukake-28-2020