No ke aha i hoʻopili ʻia ai nā Nickel Base?

ʻO nā mea hoʻohui paʻa Nickel

Kuhi ʻia hoʻi nā mea hoʻopili nika me he superalloys i hoʻokumu ʻia ma muli o ko lākou ikaika poʻokela, kūpaʻa wela a me ka pale kūpaʻa. ʻO ke aniani aniani kikowaena ke ʻano o ke alo o ka hoʻopili ni-ma muli o ka hana ʻana o nickel ma ke ʻano he stabilizer no ka austenite.

ʻO nā mea kemika hou aʻe i hoʻohui ʻia i nā nickel-based alualu he chromium, cobalt, molybdenum, hao a me tungsten.

Inconel® a me Hastelloy® Nickl-based Alloys

ʻElua mau ʻohana pilina paʻa nickel i hoʻokumu ʻia ʻo Inconel® lāua ʻo Hastelloy®. ʻO Waspaloy®, Allvac® a me General Electric® nā mea hana kaulana ʻē aʻe.

ʻO nā mea a ka ʻonika hoʻokumu paʻa pinepine ʻia ʻo Inconel®:

• Inconel® 600, 2.4816 (72% Ni, 14-17% Cr, 6-10% Fe, 1% Mn, 0.5% Cu): Kahi paʻa hao nickel-chrome-iron e hōʻike ana i ke kūpaʻa maikaʻi ma kahi pālākiō pālākiō. Kūpaʻa i ka wai māʻamaʻama a me ka wai māʻamaʻama
• Inconel® 617, 2.4663 (Nika koena, 20-23% Cr, 2% Fe, 10-13% Co, 8-10% Mo, 1.5% Al, 0.7% Mn, 0.7% Si): Hana kēia hana i ka nui o ka nickel , chrome, cobalt a me molybdenum hōʻike i ka ikaika kiʻekiʻe a me ka pale wela.
• Inconel® 718 2.4668 (50-55% Ni, 17-21% Cr, koena hao, 4.75-5.5% Nb, 2.8-3.3% Mo, 1% Co,): Kahi paʻa paʻa paʻa nickel-chrome-hao-molybdenum. ʻike ʻia no kāna hana maikaʻi a me nā pono mīkini maikaʻi loa ma nā mahana haʻahaʻa.

Hoʻomaopopo ʻia nā alloys nickel-based Hastelloy® no ko lākou kūʻē ʻana i nā waikawa. ʻO nā mea maʻamau ka:

• Hastelloy® C-4, 2.4610 (Nika koena, 14.5 - 17.5% Cr, 0 - 2% Co, 14 - 17% Mo, 0 - 3% Fe, 0 - 1% Mn): C-4 he nickel- oka a chrome-molybdenum i hoʻopili ʻia i nā wahi me nā waikawa inorganic.
• Hastelloy® C-22, 2.4602 (Nika koena, 20 -22.5% Cr, 0 - 2.5% Co, 12.5 - 14.5% Mo, 0 - 3% Fe, 0-0.5% Mn, 2.5 -3.5 W): C- ʻO 22 kahi kūpikikiki-kūpale nickel-chrome-molybdenum-tungsten oka a hōʻike i ka hoʻomau maikaʻi i nā waikawa.
• Hastelloy® C-2000, 2.4675 (Nika koena, 23% Cr, 2% Co, 16% Mo, 3% Fe): Hoʻohana ʻia ʻo C-2000 i nā wahi me nā ʻaukā ʻino e like me ka sulfuric acid a me ka ferric chloride.

♦ Ka hoʻomaikaʻi ʻana i ka paʻa o nā ʻāpana hana nickel-based

Hoʻomaopopo ʻia nā kinona Nickel no ko lākou maikaʻi mechanical e like me ke kūpaʻa kūkaʻi a me ke kūpaʻa kiʻekiʻe o ka mahana. Eia nō naʻe, ʻaneʻane ʻaʻole hiki i kahi ʻāpana hana ke mau loa, no ka nani o ka mea. No ka hoʻolōʻihi ʻana i ke ola o nā ʻāpana, hiki ke mālama ʻia me nā alloys nickel me BoroCoat®, kā mākou hana diffusion e hoʻomaikaʻi maikaʻi ai i ka pala a komo i ke kūpaʻa a hāʻawi pū i ka kūpaʻa i nā oxidants.

Hoʻonui ka papa diffusion o BoroCoat® i ka paʻakikī o ka ʻili a hiki i ka 2600 HV ʻoiai e mālama ana i kahi papa diffusion o 60 µm. Hoʻonui maikaʻi ʻia ke kūpaʻa o ka ʻaihue, e like me ka mea i hōʻoia ʻia e ka pin ma ka hōʻike disc. ʻOiai ʻo ka hohonu o ke komo ʻana o nā ʻanela i hoʻokumu ʻia me nā nickel i hoʻomaʻamaʻa ʻia e hoʻonui i ka lōʻihi o ke kui e loli, nā mea hoʻopili ni-me BoroCoat® e hōʻike i ka hohonu o ka lole haʻahaʻa ma loko o ka hoʻāʻo.

♦ Nā wahi noi

Hoʻohana pinepine ʻia nā alloys me kahi kumu nickel i loko o nā wahi paʻakikī e koi i ke kūpaʻa maikaʻi e kūʻē i nā kiʻekiʻe kiʻekiʻe a me nā haʻahaʻa, ka hoʻoheheʻe / ka popopo a me ka ikaika kiʻekiʻe. ʻO kēia ke kumu e hoʻopili ai nā noi akā ʻaʻole kau palena ʻia i: ʻenekini turbine, ʻenehana hoʻoulu mana, ʻoihana kemika, ʻenehana aerospace a me nā valves / pono.

 Ma kahi o 60% o ka nickel i ka honua e pau i kahi mea kila kila. Koho ʻia ia ma muli o kona ikaika, paʻakikī, a me ke kūpaʻa i ka corrosion. ʻO nā kila kuhiliʻole Duplex ma kahi o 5% nickel, austenitics ma kahi o 10% nickel, a me nā super austenitics ma luna o 20%. Hoʻokomo pinepine ʻia nā māka kū wela ma luna o 35% nikala. Loaʻa nā 50% nickel a ʻoi paha i nā mea hoʻopili a Nickel.