Txais tos rau peb lub vev xaib!

Kev lag luam Pure Nickel

Tshuaj Formula

Ni

Cov ntsiab lus npog

Keeb kwm

Kev lag luam ntshiab los yogqis alloy nickelpom nws daim ntawv thov tseem ceeb hauv kev ua tshuaj lom neeg thiab hluav taws xob.

Corrosion Resistance

Vim yog cov npib tsib xee cov tshuaj tiv thaiv corrosion, tshwj xeeb tshaj yog rau ntau yam tshuaj txo qis thiab tshwj xeeb tshaj yog rau caustic alkalis, npib tsib xee yog siv los tswj cov khoom zoo hauv ntau cov tshuaj tiv thaiv, tshwj xeeb tshaj yog cov khoom noj thiab cov khoom siv hluavtaws.

Cov khoom ntawm Commercially Ntshiab Nickel

Piv raunpib tsib xee alloys, ua lag luam ntshiab nickel muaj hluav taws xob conductivity, siab Curie kub thiab zoo magnetostrictive zog.Nickel yog siv rau cov hlau lead hauv hluav taws xob, cov khoom siv roj teeb, thyratrons thiab sparking electrodes.

Nickel kuj muaj cov thermal conductivity zoo.Qhov no txhais tau hais tias nws tuaj yeem siv rau cov khoom siv hluav taws xob sib txawv hauv qhov chaw corrosive.

Table 1. Khoom ntawmNickel 200, cov qib lag luam ntshiab (99.6% Ni).

Khoom Tus nqi
Annealed Tensile Strength ntawm 20 ° C 450MPa
Annealed 0.2% Pov Thawj Stress ntawm 20 ° C 150 MPa
Elongation (%) 47
Qhov ntom 8.89g 3
Melting Range 1435-1446 ° C
Tshwj xeeb kub 456 J/kg°C
Curie Kub 360 ° C
txheeb ze Permeability Pib 110
  Qhov siab tshaj plaws 600
Co-Efficient yog Expansion (20-100 ° C) 13.3 × 10-6m / m ° C
Thermal conductivity 70W / m ° C
Hluav taws xob Resistivity 0.096 × 10-6ohm.m

Fabrication ntawm Nickel

Annealednpib tsib xeemuaj ib tug tsawg hardness thiab zoo ductility.Nickel, zoo li kub, nyiaj thiab tooj liab, muaj qhov ua haujlwm qis qis, piv txwv li nws tsis zoo li nyuaj thiab nkig thaum nws khoov lossis lwm yam deformed li ua lwm yam hlau.Cov cwj pwm no, ua ke nrog zoo weldability, ua rau cov hlau yooj yim rau fabricate rau hauv cov khoom tiav.

Nickel hauv Chromium Plating

Nickel kuj nquag siv los ua cov tsho hauv qab hauv cov hniav chromium plating.Cov khoom nyoos, xws li tooj dag lossis zinc casting lossis ib daim ntawv hlau nias yog thawj plated nrog ib txheej ntawmnpib tsib xeekwv yees li 20µm tuab.Qhov no muab nws cov corrosion kuj.Lub tsho tiv no zaum kawg yog nyias 'flash' (1-2µm) ntawm chromium kom nws muaj xim thiab tarnish tsis kam uas feem ntau suav hais tias xav tau ntau dua hauv cov khoom siv plated.Chromium ib leeg yuav tsis muaj peev xwm tiv thaiv corrosion vim tias feem ntau ntxeem tau ntawm chromium electroplate.

Khoom Table

Khoom siv Nickel - Cov khoom, Fabrication thiab kev siv cov khoom lag luam ntshiab Nickel
Kev sib xyaw: > 99% Ni los yog zoo dua

 

Khoom Yam tsawg kawg nkaus tus nqi (SI) Tus nqi siab tshaj (SI) Units (SI) Yam tsawg kawg nkaus tus nqi (Imp.) Tus nqi siab tshaj (Imp.) Units (Imp.)
Atomic Volume (nruab nrab) 0.006 5 0.0067 ib m3/km 396.654 ib 408.859 ib hauv 3/km
Qhov ntom 8.83 ib 8.95 ib mg/m3 551.239 ib 558.731 ib lb/ft 3
Cov ntsiab lus zog 230 690 ib MJ/kg 24917.9 ib 7 4753.7 kcal/lb
Bulk Modulus 162 200 GPa 23.4961 Nws 29.0075 Nws 106psi ua
Compressive zog 70 935 ua MPa 10.1526 Nws 135.61 Nws ksi ua
Ductility 0.02 ib 0.6   0.02 ib 0.6  
Elastic txwv 70 935 ua MPa 10.1526 Nws 135.61 Nws ksi ua
Endurance txwv 135 500 MPa 19.5801 Nws 72.5188 ib ksi ua
Fracture Toughness 100 150 MPa.m1/2 91.0047 ib 136.507 Nws ksi.in 1/2
Hardness 800 3000 MPa 116.03 Nws 435.113 ib ksi ua
Loss Coefficient 0.0002 0.0032 ib   0.0002 0.0032 ib  
Modulus ntawm Repture 70 935 ua MPa 10.1526 Nws 135.61 Nws ksi ua
Poisson tus ratio 0.305 Nws 0.315 ib   0.305 Nws 0.315 ib  
Shear Modulus 72 86 GPa 10.4427 Nws 12.4732 Nws 106psi ua
Tensile zog 345 1000 MPa 50.038 ib 145.038 Nws ksi ua
Young's Modulus 190 220 GPa 27.5572 Nws 31.9083 ib 106psi ua
iav kub     K     ° F
Latent Kub ntawm Fusion 280 310 kJ/kg 120.378 Nws 133.275 Nws BTU/lb
Qhov Kev Pab Cuam Siab Tshaj Plaws 510 640 K 458.33 ib 692.33 ib ° F
Melting Point 1708 ib 1739 ib K 2614.73 ib 2670.53 ib ° F
Yam tsawg kawg ntawm Kev Pabcuam Kub 0 0 K -459.67 -459.67 ° F
Tshwj xeeb kub 452 ib 460 J/Kg 0.349784 ib 0.355975 ib BTU/lb.F
Thermal conductivity 67 91 W/mK 125.426 Nws 170.355 Nws BTU.ft/h.ft2.F
Thermal Expansion 12 13.5 Nws 10-6 / K 21.6 ib 24.3 10-6 / ° F
Kev tawg muaj peev xwm     MV/m     V/mil
Dielectric tsis tu ncua            
Kev tiv thaiv 8 10 10-8 awm 8 10 10-8 awm

 

Environmental Properties
Cov yam ntxwv tsis kam 1 = Poob 5 = Zoo heev
Flammability 5
Dej ntshiab 5
Organic Solvents 5
Oxidation ntawm 500C 5
Dej hiav txwv 5
Muaj zog Acid 4
Muaj zog Alkalis 5
UV 5
Hnav 4
Tsis muaj Acid 5
Tsis muaj Alkalis 5

 

Tau qhov twg los: Abstracted los ntawm Phau Ntawv ntawm Engineering Materials, 5th Edition.

Yog xav paub ntxiv txog qhov chaw no thov mus saibLub koom haum ntawm Material Engineering Australia.

 

Nickel nyob rau hauv cov ntaub ntawv elemental lossis alloyed nrog lwm cov hlau thiab cov ntaub ntawv tau ua rau muaj txiaj ntsig zoo rau peb lub neej niaj hnub no thiab cog lus tias yuav muab cov khoom siv ntxiv rau yav tom ntej.Nickel yeej ib txwm yog cov hlau tseem ceeb rau ntau yam kev lag luam rau qhov yooj yim vim li cas nws yog cov khoom siv ntau yam uas yuav alloy nrog rau feem ntau cov hlau.

Nickel yog cov khoom siv ntau yam thiab yuav alloy nrog ntau cov hlau.Nickel alloys yog alloys nrog npib tsib xee ua lub ntsiab tseem ceeb.Ua kom tiav cov khoom solubility muaj nyob nruab nrab ntawm nickel thiab tooj liab.Kev solubility dav dav ntawm cov hlau, chromium, thiab npib tsib xee ua tau ntau qhov sib xyaw ua ke.Nws lub siab versatility, ua ke nrog nws zoo heev tshav kub thiab corrosion kuj tau coj mus rau nws siv nyob rau hauv ntau yam kev siv;xws li Aircraft gas turbines, chav turbines nyob rau hauv fais fab nroj tsuag thiab nws nws kim heev siv nyob rau hauv lub zog thiab nuclear fais fab kev lag luam.

Kev siv thiab cov yam ntxwv ntawm Nickel Alloys

Nickel thiab nickel alloysyog siv rau ntau yam kev siv, feem ntau uas muaj kev tiv thaiv corrosion thiab / lossis kub tsis kam.Qee qhov no suav nrog:

  • Aircraft gas turbines
  • Chav turbine fais fab nroj tsuag
  • Kev siv tshuaj kho mob
  • Nuclear fais fab systems
  • Chemical thiab petrochemical kev lag luam
  • Cua sov thiab Resistance qhov chaw
  • Isolators thiab Actuators rau kev sib txuas lus
  • Automotive Spark plugs
  • Vuam consumables
  • Fais fab Cables

Lwm tus lejsiv rau cov nickel alloyskoom nrog cov khoom tshwj xeeb ntawm lub cev tshwj xeeb ntawm nickel-based lossis high-nickel alloys.Cov no suav nrog:

 


Post lub sij hawm: Aug-04-2021