Kub electroplating tseem yog pob zeb ntawm kev tsim khoom niaj hnub, sib txuas ntawm cov hluav taws xob tsis sib xws (4.1×10⁷ S/m) Nrog kev zam tshwj xeeb ntawm kev tiv thaiv corrosion ({{0 {0}}. 1 μm / xyoo poob hauv qhov chaw hnyav). Kab lus no nthuav tawm cov txuj ci siab ntawm kev ua tiav qhov kev ua tau zoo no, txhawb los ntawm cov ntaub ntawv qhia txog cov ntaub ntawv thiab kev lag luam.
1. Kev ua raws li-corrosion synergy: kev pom tseeb
1.1 atomic-qib engineering
Kub lub ntsej muag-nruab nrab lo teb (FCC) cov qauv siv lead uaKev siv hluav taws xob muaj hluav taws xob 70% siab dua nyiaj, Thaum nws nobility (Qauv electrode peev xwm +1. 5v) Tiv thaiv oxidation. Niaj hnub ua rau txheej txheem plating tshiab ua kom zoo tshaj qhov sib npaug los ntawm:
Grain Loj Tswj: {{20-50 nmannocrystalline ua tiav95% kev yoog raws
Impregent txwv: Tswj hwm tsawg dua lossis sib npaug nrog 50 ppm npib tsib xee / tooj liab los tiv thaivGalvanic corrosion nyob rau hauv tov-hlau tshuab
1.2 tuab ua kom zoo ua kom zoo
| Daim ntawv thov | Min. Thickness (μm) | Max. Porosity (pores / CMO) |
|---|---|---|
| PCB ntug txuas | 0.8 | 15 |
| Kev Cog Tshuaj Kho Mob | 2.5 | 3 |
| Satellite Cheebtsam | 5.0 | 0 |
2. Txheej txheem tsis: Qhov precision levers
2.1 Electrolyte Composition (Muaj Kub Plating Da Dej Formula)
Kau (cn) ₂: {4-8 g / l (enables99.99% Dawb AU Deposition)
Citric acid: {{80-120 g / l (ph stabilizer ntawm 4. 5-5. 5)
Dej taus: {{{{{0}} maub} mercaptobakothiazole tsawg dua los yog sib npaug rau 0.1 g / l (tiv thaivDendritic kev loj hlob hauv high-nam-piv txwv)
2.2 Kev Ua Kom Zoo Tam Sim No
Low-tam sim no tsoomfwv({{{{0}}}}}}. 5 A / {}. 5 μm / h compact txheej
Mem Tes Plating(10 ms ntawm / 5 ms tawm): txo qishydrogen embrittlement yuav los ntawm 60%
3. Cov Txheej Txheem Txheej Txheem Tshaj Plaws (APC) moj khaum
3.1 Kev Ntsuam Xyuas Realming
Cyclic Voltammetry Sensors: Ntes Cyanide depletion nrog{{0 {}. 1 ppm qhov tseeb
XRF Thickness gauges: Hauv-kab ntsuas nrog{0. 02 μm precision
3.2 Kev Tiv Thaiv Tsis Txaus
Kev Kho Mob Ua Ntej:
Cov kua ntses ua kom (10% hatso₄, 45 degree, 120s)
Nickel Ntaus Txheej(2 μm, 3 A / DMO) rau cov hlau tsis sib xws
Plating theem:
Ntsuas kub ± 0. 5 degree (tseem ceeb rautxheej uniformity hauv cov nyom geometries)
Kev Ua Haujlwm Tom Qab:
Hydrogen ci-tawm (200 degree × 2h, txo cov ntsiab lus h₂ rau<5 ppm)
4. Kev Tshawb Fawb Kev Tshawb Fawb
4.1 high-zaus txuas txuas plating (5g teeb liab kev nthuav dav kev ua kom zoo)
Cav: Tswj 3.5 GHz teeb liab kev ncaj ncees nrog<0.1 dB loss
Lus teb: 1.2 μm kub tshaj 0. 3 μm palladium teeb meem txheej
Qho kawg: Kev sib chwv tiv thaiv khov kho ntawm1.2 Mω tom qab 10⁸ mating mus los
4.2 marine sensor corrosion
Huab cua: 3.5% NACL txau (ASTM B117 Txuj Ci)
Ntaus tswv yim: 5 μm matte kub + 0. 5 μm chromate hloov dua tshiab
Ua yeeb yam: Pes tsawg corrosion tom qab 2000h dej ntshiab pos
5. Tawm thev naus laus zis rov kho cov kub plating
5.1 Cyanide-Dawb plating da dej
Sulfite-based da dej: Ua tiav90% cuam lub zog ntawm 60 degree
Ionic kua electrolytes: Pab komChav-Kub Plating ntawm 3D Microstructures
5.2 nanocomposite tsho nplaum
Au-graphene: 130% kev coj ua zoo dua(Nano tsiaj ntawv, 2023)
AU-pob zeb diamond: Vickers hardness nce mus rau450 hv(Vs. ntshiab AU 70 HV)
6. Them Cov Tswv Yim Kom Txhim Kho Kom Txhim Kho
Xaiv plating: Laser-Masked Cheeb Tsam Txo AU kev siv los ntawm40%
Kaw-lub voj rov qab: 98% Da Dej Tshuaj Kho Dua TshiabVia ion-txauv paj
Xaus: the 0. 1 μm pib
Thaum Aerospace Loj Lockheed Martin Txo Cov Khaub Ncaws Kub Txheej Txheem Ntawm 2.5 μm txog 1.8 μm thaum tswjMil-g -45204 d ua raws, Nws siv tau qhov tseeb tseem ceeb:Precision Txheej Txheem Tswj Outweighs Cov Khoom NtauCov. Lub neej yav tom ntej belongs rau cov tshuab ua ke air-tsav da dej nrogatomic alines txheej Deposition cov txheej txheem.
