Welina mai i kā mākou mau pūnaewele!
English
1
Ka hae (1)
Ka hae (3)
Ka hae (2)

Nikela Maemae Kalepa

ʻO ke kimekema

Ni

Nā kumuhana i uhi ʻia

Kāpae

Maʻemaʻe kālepa a i ʻolenickel alloy haʻahaʻaʻike ʻo ia i kāna noi nui i ka hana kemika a me ka uila.

Pale ʻino

Ma muli o ke kūpaʻa ʻana o ka nickel maʻemaʻe, ʻoi aku i nā kemika hoʻohaʻahaʻa like ʻole a ʻoi aku hoʻi i nā alkalis caustic, hoʻohana ʻia ka nickel e mālama i ka maikaʻi o ka huahana i nā hopena kemika he nui, ʻoi aku ka hana ʻana i nā meaʻai a me ka hana ʻana i ka fiber synthetic.

Na Waiwai o ka Nikela Maemae Kalepa

Hoʻohālikelike ʻia menickel alloys, He kiʻekiʻe ka nickel maʻemaʻe pāʻoihana, kahi mahana Curie kiʻekiʻe a me nā waiwai magnetostrictive maikaʻi. Hoʻohana ʻia ʻo Nickel no nā uwea alakaʻi uila, nā ʻāpana pākahi, thyratrons a me nā electrodes sparking.

He maikaʻi nō hoʻi ka hoʻoili wela o Nickel. ʻO ia ke ʻano hiki ke hoʻohana ʻia no nā mea hoʻololi wela i nā wahi corrosive.

Papa 1. Na waiwai oNikela 200, ka papa maʻemaʻe kālepa (99.6% Ni).

Waiwai Waiwai
ʻO ka ikaika uʻi Annealed ma 20 ° C 450MPa
Hoʻopili ʻia 0.2% Hōʻike Koʻikoʻi ma 20°C 150MPa
Elongation (%) 47
ʻO ka mānoanoa 8.89g/cm3
Lahui hehee 1435-1446°C
Wela Kūikawā 456 J/kg. °C
Ka Mahana Curie 360°C
Pili pili Kumumua 110
  Ka nui 600
Hoʻoikaika pū inā hoʻonui (20-100°C) 13.3×10-6m/m.°C
ʻO ka hoʻoili wela 70W/m.°C
Kū'ē Uila 0.096×10-6ohm.m

Ka hana ʻana o Nickel

Hana ʻianikelaHe haʻahaʻa ka paʻakikī a me ka ductility maikaʻi. ʻO Nickel, e like me ke gula, ke kālā a me ke keleawe, he haʻahaʻa haʻahaʻa ka paʻakikī o ka hana, ʻo ia hoʻi, ʻaʻole ia e lilo i ʻoi aku ka paʻakikī a me ka palupalu i ka wā e piʻo ai a i ʻole e like me ka nui o nā metala ʻē aʻe. ʻO kēia mau hiʻohiʻona, i hui pū ʻia me ka weldability maikaʻi, e maʻalahi i ka metala e hana i nā mea i hoʻopau ʻia.

Nikela ma Chromium Plating

Hoʻohana pinepine ʻia ʻo Nickel ma ke ʻano he undercoat i ka hoʻonaninani chromium plating. ʻO ka huahana maka, e like me ke keleawe a i ʻole ka hoʻolei ʻana i ka zinc a i ʻole ka paʻi kila pepa i uhi mua ʻia me kahi papa onikelama kahi o 20µm mānoanoa. Hāʻawi kēia i kona pale ʻana i ka corrosion. ʻO ka ʻaʻahu hope he 'flash' lahilahi (1-2µm) o ka chromium e hāʻawi i ke kala a me ke kūpaʻa ʻino i manaʻo ʻia ʻoi aku ka makemake i nā mea i hoʻopaʻa ʻia. ʻO Chromium wale nō ka mea hiki ʻole ke ʻae ʻia ke kūpaʻa ʻino ma muli o ke ʻano porous maʻamau o ka chromium electroplate.

Papa Waiwai

Mea waiwai Nickel – Nā waiwai, hana a me nā noi o ka nickel maʻemaʻe kālepa
Huina: >99% Ni a ʻoi aku paha

 

Waiwai Waiwai liʻiliʻi (SI) Waiwai Nui (SI) Huina (SI) Waiwai liʻiliʻi (Imp.) Waiwai Nui (Imp.) Huina (Imp.)
Ka Lehulehu ʻAtoma (ʻawelika) 0.0065 0.0067 m3/kmol 396.654 408.859 i3/kmol
ʻO ka mānoanoa 8.83 8.95 Mg/m3 551.239 558.731 lb/ft3
ʻIke i ka ikehu 230 690 MJ/kg 24917.9 74753.7 kcal/lb
Modulus Nui 162 200 GPa 23.4961 29.0075 106 psi
Ka ikaika hoʻopili 70 935 MPa 10.1526 135.61 ksi
ʻO ka ductility 0.02 0.6   0.02 0.6  
Palena Elastic 70 935 MPa 10.1526 135.61 ksi
palena hoomanawanui 135 500 MPa 19.5801 72.5188 ksi
ʻOoleʻa Haʻihaʻi 100 150 MPa.m1/2 91.0047 136.507 ksi.in1/2
ʻoʻoleʻa 800 3000 MPa 116.03 435.113 ksi
Koepika Pohō 0.0002 0.0032   0.0002 0.0032  
Modulus o ka nahaha 70 935 MPa 10.1526 135.61 ksi
Ka Laki o Poisson 0.305 0.315   0.305 0.315  
Modulus Shear 72 86 GPa 10.4427 12.4732 106 psi
Ikaika U'i 345 1000 MPa 50.038 145.038 ksi
Opio Modulus 190 220 GPa 27.5572 31.9083 106 psi
Makani aniani     K     °F
Wela Latent of Fusion 280 310 kJ/kg 120.378 133.275 BTU/lb
ʻO ka wela lawelawe kiʻekiʻe loa 510 640 K 458.33 692.33 °F
Lae hehee 1708 1739 K 2614.73 2670.53 °F
Mahana lawelawe liʻiliʻi loa 0 0 K -459.67 -459.67 °F
Wela Kūikawā 452 460 J/kg.K 0.349784 0.355975 BTU/lb.F
ʻO ka hoʻoili wela 67 91 W/mK 125.426 170.355 BTU.ft/h.ft2.F
Hoʻonui wela 12 13.5 10-6/K 21.6 24.3 10-6/°F
Hiki i ka wawahi     MV/m     V/mil
Dielectric mau            
Kū'ē 8 10 10-8 ohm.m 8 10 10-8 ohm.m

 

Na Waiwai Kaiapuni
Nā mea kū'ē 1 = ʻAʻole 5 = maikaʻi loa
Ka hikiwawe 5
Wai Mauli 5
Nā mea hoʻoheheʻe kino 5
Oxidation ma 500C 5
Wai Kai 5
Aakika ikaika 4
Alkali ikaika 5
UV 5
ʻaʻahu 4
Nawaliwali Acid 5
Nawaliwali Alkalis 5

 

Source: Abstracted from Handbook of Engineering Materials, 5th Edition.

No ka ʻike hou aku e pili ana i kēia kumu, e kipaKe Institute of Materials Engineering Australasia.

 

ʻO Nickel ma ke ʻano elemental a i hui pū ʻia me nā metala a me nā mea waiwai ʻē aʻe i hāʻawi nui i ko mākou kaiāulu o kēia manawa a hoʻohiki e hoʻomau i ka hoʻolako ʻana i nā mea no ka wā e hiki mai ana. He metala koʻikoʻi ʻo Nickel no nā ʻano ʻoihana like ʻole no ke kumu maʻalahi he mea maʻalahi loa ia e hui pū me nā metala ʻē aʻe.

ʻO Nickel kahi mea maʻalahi a hui pū me ka hapa nui o nā metala. ʻO nā nickel alloys nā mea hoʻohui me ka nickel ke kumu nui. Loaʻa ka solubility paʻa paʻa ma waena o ka nickel a me ke keleawe. Hiki ke hoʻohui pū ʻia nā hui like ʻole ma waena o ka hao, chromium, a me nickel. ʻO kāna versatility kiʻekiʻe, i hui pū ʻia me kona ʻano wela a me ka pale ʻana i ka corrosion ua alakaʻi i kona hoʻohana ʻana i nā ʻano hana like ʻole; e like me Aircraft gas turbines, mokuahi turbines i nā mea kanu mana a me kona hoʻohana nui ʻana i ka ikehu a me nā mākeke mana nuklea.

Nā noi a me nā hiʻohiʻona o nā huila nikela

Nickel a me nickel alloyshoʻohana ʻia no nā ʻano noi like ʻole, ʻo ka hapa nui o ia mau mea e pili ana i ka pale corrosion a / a i ʻole ka wela. Aia kekahi o kēia mau mea:

  • ʻO nā huila kinoea mokulele
  • Nā mea hoʻoheheʻe uila mahu
  • Nā noi lapaʻau
  • Pūnaehana mana nuklea
  • ʻOihana kemika a me ka petrochemical
  • Nā ʻāpana wela a me ke kū'ē
  • Isolator a me Actuators no ke kamaʻilio
  • ʻO nā pūkuniahi kaʻa
  • Nā mea hoʻohana welding
  • Uila Mana

He helu o nā mea ʻē aʻenā noi no nā nickel alloyshoʻokomo i nā waiwai kino kū hoʻokahi o nā mea hana nickel kumu kūikawā a i ʻole kiʻekiʻe-nickel alloys. Aia kēia mau mea:

 

Ka manawa hoʻouna: ʻAukake-04-2021
E kaomi i ke komo no ka huli ʻana a i ʻole ESC e pani