1. Kumu
No ke kūlana kiʻekiʻe o ke kaʻina hana electroless nickel plating, ka kaohi palena, a me nā koi maikaʻi, e hōʻoiaʻiʻo ana i ka maikaʻi o ka uhi ʻana e kū ana i nā kūlana o ka mea kūʻai aku a me nā kūlana honua.
2. Ka laulā
Pili i ka uhi nickel electroless ma ke kila kalapona, ke kila kila, a me nā mea hao keleawe. ʻAʻole pili i nā mea hao magnesium, nā mea hao titanium, a i ʻole nā kaʻina hana kūikawā ʻē aʻe.
3. Nā Kuhikuhi Normative
- • GB/T 13913-2008 – Nā uhi ʻāpana nickel-phosphorus autocatalytic
- • GB/T 6461-2002 – Ka helu ʻana o nā hāpana hoʻāʻo a me nā ʻatikala o nā uhi metala a me nā uhi inorganic ʻē aʻe ma nā substrates metala ma hope o ka hoʻāʻo ʻana i ka palaho
- • ASTM B733-18 – Kikoʻī Maʻamau no nā Uhi Nickel-Phosphorus Autocatalytic (Electroless)
- • ISO 4527:2003 – Nā uhi hao – Nā uhi nickel-phosphorus autocatalytic (electroless)
- • GB/T 5270-2005 – Nā uhi metala ma nā substrates metala – Nā uhi i hoʻopili ʻia a waiho ʻia me ke kemika – Nā ʻano hoʻāʻo hoʻopili
4. Kumumanaʻo o ke Kaʻina Hana
ʻO ka Electroless nickel plating kahi hana hoʻokomo kemika autocatalytic kahi e hoʻemi ai ka sodium hypophosphite i nā ion Ni²⁺ e hana i kahi uhi Ni-P alloy.
ʻAno hana:
- • ʻOkika ʻanodic: H₂PO₂⁻ + H₂O → H₂PO₃⁻ + 2H⁺ + 2e⁻
- • Hoemi Cathodic: Ni²⁺ + 2e⁻ → Ni
- • Ka hoʻohuihui ʻana o ka phosphorus: H₂PO₂⁻ + 2H⁺ + e⁻ → P + 2H₂O
Hoʻokaʻawale ʻana o ka uhi ʻana e ka nui o ka phosphorus:
| ʻAno | Ka nui o ka phosphorus |
| Haʻahaʻa-P | 1–5% |
| Waena-P | 5–10% |
| Kiʻekiʻe-P | 10–15% |
5. Kahe Hana
Nānā → Hoʻohemo ʻaila → Holoi wela → Holoi kahe → Pickling → Holoi → Hoʻāla → Holoi → Holoi DI → Plating Electroless → Hoʻōla hou → Holoi counterflow 3-kahua → Passivation → DI holoi → Hoʻomaloʻo → Nānā → Hoʻopaʻa ʻana
6. Nā Palena Kaʻina Hana Koʻikoʻi
| Palena | Ka laulā hoʻomalu | Nā Manaʻo |
| Ka nui o ka Ni²⁺ | 8–12 g/L | Manaʻo ʻia 9–10 g/L |
| Sodium hypophosphate | 25–35 g/L | Ka lakio molar i Ni²⁺: 2.5–3.5:1 |
| Mea hoʻohuihui (sodium citrate) | 30–40 g/L | Hoʻopaʻa i nā iona nickel |
| Buffer (sodium acetate) | 15–25 g/L | Mālama i ke kūpaʻa pH |
| waiwai pH | 4.5–5.5 (Waena/kiʻekiʻe-P) | Hoʻoponopono ʻia me ka ammonia a i ʻole sodium carbonate |
| Mahana | 85–90℃ | ʻOi loa 88±1℃ |
| Ke hoʻouka nei | 0.5–1.5 dm²/L | Hoʻemi ka hoʻouka kiʻekiʻe i ka helu waiho ʻana |
| Ka helu waiho ʻana | 15–25 μm/h | E emi ana me ka ʻelemakule ʻauʻau |
| Manawa | 15–60 minuke | Ma muli o ka mānoanoa e pono ai |
| Hoʻonāukiuki | Ea mīkini a i ʻole ka ea haʻahaʻa | Manaʻo ʻia ka neʻe ʻana o ka ʻāpana hana a i ʻole ke kaʻapuni ʻana |
| Kānana ʻana | Kānana mau, helu 5–10 μm | Wehe i nā ʻāpana, pale i ka pitting |
7. Nā Kikoʻī Huahana a me ka Hiki ke Uhi
7.1 Ka laulā nui o ka ʻāpana hana
| Mea | Palena |
| Ka nui loa | 1500 × 800 × 600 mm |
| Ka nui liʻiliʻi loa | 5 × 5 × 5 mm |
| Kaumaha kiʻekiʻe loa | 200 kg |
| Kaumaha liʻiliʻi loa | 1 g |
7.2 Ka Mana Mānoanoa o ka Uhi ʻana
| ʻAno | Pae mānoanoa | Hoʻohana maʻamau |
| Nā ʻāpana kikoʻī | 5–10 μm | Nā kaula, nā ʻiwi valve, nā ʻāpana hydraulic |
| Nā ʻāpana maʻamau | 10–50 μm | Nā ʻāpana pale i ka pala a me ke komo ʻana |
| Uhi mānoanoa | 50–100 μm | Hoʻoponopono ʻana i ke kapa komo, nā wahi ʻinoʻino koʻikoʻi |
ʻAno like: ±10% (nā ʻāpana laulā); ±15% (nā ʻano paʻakikī)
7.3 Nā Waiwai Uhi
| Waiwai | E like me ka uhi ʻia | Hoʻomehana ʻia (400℃×1h) | Nā Manaʻo |
| Paʻakikī (HV) | ≥500 HV | ≥800 HV | Hoʻonui ka mālama wela i ka paʻakikī |
| Hoʻopili ʻana | ≤ Papa 1 (GB/T 5270) | — | ʻAʻohe ʻili ʻana, ʻaʻohe ʻōʻili ʻana |
| Hoʻāʻo pīpī paʻakai (NSS, 5% NaCl, 35 ℃) | ≥24 hola (Waena-P) ≥72 h (Kiʻekiʻe-P) | — | No kēlā me kēia koi o ka mea kūʻai aku |
| Ka porosity | ≤1 kiko/cm² | — | ʻO ka maʻamau ʻaʻole porous ≥25 μm |
| Ke kū'ē ʻana | 50–100 μΩ·cm | 30–60 μΩ·cm | — |
Ka mālama wela: 400℃ ±10℃, 1 hola, hoʻomaʻalili ʻia i ka ea/umahana.
8. Ka Mana Hana
| Mea | Ka mana |
| Ka nui o ka pahu hoʻokahi | 2–5 m³ |
| Kaumaha o ka pūʻulu | 500–1500 kg |
| Ka nui o kēlā me kēia lā | 3–8 tone |
| Ka mana o kēlā me kēia mahina | 80–200 tone |
Nānā: Pili ka mana maoli i ke ʻano, ka mānoanoa, a me ka ʻelemakule ʻauʻau.
9. Nānā Kūlana
9.1 Nā Mea Nānā
| Mea | ʻAno hana | Alapine (frequency) | Pae hoʻāpono |
| Mānoanoa | ʻO ka microscope XRF / metallographic | ≥3 mau helu no kēlā me kēia mea paʻa no kēlā me kēia pūʻulu | E hālāwai me ke kaha kiʻi; max dev ≤10% |
| Paʻakikī | Paʻakikī HV0.1 | Hoʻokahi manawa no kēlā me kēia neʻe ʻana | ≥500 HV (e like me ka uhi ʻia); ≥800 HV (HT) |
| Hoʻopili ʻana | Waihona/piʻo/ʻoki keʻa+lipine | 1 ʻāpana no kēlā me kēia pūʻulu | Papa ≤1, ʻaʻohe ʻili ʻana |
| helehelena | ʻIke (mālamalama maʻamau) | 100% | ʻĀlohilohi like; ʻaʻohe hemahema |
| ʻŌpī paʻakai | NSS 5% NaCl, 35 ℃ | No kēlā me kēia pūʻulu/hoʻololi | Waena-P ≥24 hola; Kiʻekiʻe-P ≥72 hola |
| Ka nui o ka phosphorus | EDS / kemika | ʻAuʻau hebedoma / ʻauʻau hou | 1–5% / 5–10% / 10–15% |
9.2 Ka Hoʻokaʻawale ʻana o ke ʻAno
| Papa | Wehewehena |
| Papa A | ʻĀlohilohi like/ʻālohilohi hapa, ʻaʻohe hemahema |
| Papa B | He wai iki/nā māka o ka ʻūpā, ʻaʻohe lua/ʻili |
| Papa C | ʻAno pouli iki/ʻokoʻa ke kala, hana maikaʻi |
| Hōʻole | Ka lua ʻana, ka ʻili ʻana, ka hoʻokaʻawale ʻana i ke kala, ke kuni ʻana, ka ʻokoʻa nui o ke kala |
10. Hoʻoponopono pilikia
| Pilikia | Kumu kūpono | Hoʻonā |
| Hoʻopili maikaʻi ʻole | ʻAʻole piha ka hoʻohemo ʻana/pickling; lawa ʻole ka hoʻāla ʻana | E hoʻomaikaʻi i ka mālama mua ʻana; e hoʻolōʻihi i ka hoʻāla ʻana |
| Ka lua/ʻoʻoleʻa | Nā ʻāpana i loko o ka ʻauʻau; nā hūʻe pH kiʻekiʻe | Hoʻonui i ka kānana (5 μm); pH haʻahaʻa |
| Uhi palalulu/hina | Haʻahaʻa Ni²⁺/hypophosphite; haʻahaʻa pH/mahana | E hoʻohui i nā kemika; pH 4.8–5.2; e hoʻomehana i 88℃ |
| Hōʻalo i ka hoʻopili ʻana | Ka passivation kūloko; koena aila/oxide | Hoʻomaikaʻi i ka hoʻoulu ʻana; hoʻopau hou i ka momona |
| Ka helu waiho haʻahaʻa | Haʻahaʻa ka mahana/Ni²⁺/mea hoʻēmi; pH ʻole; ʻauʻau kahiko | E hoʻomehana i 88–90℃; e hoʻoponopono i ka pH; e hoʻomaʻemaʻe i ka ʻauʻau |
| Ka palaho ʻauʻau | Ka wela nui ʻana; pH kiʻekiʻe; hoʻohui wikiwiki; hoʻouka haʻahaʻa | Hoʻōki i ka hoʻomehana ʻana; hoʻohaʻahaʻa i ka pH; hoʻoheheʻe i ka ʻauʻau |
11. Palekana
- • PPE: Nā mīkina lima ʻakika/alkali, nā maka aniani, ʻapena, mea hanu (amonia/ʻakika).
- • Ka mālama ʻana i nā kemika: E hoʻokaʻawale i ka nickel sulfate, hypophosphite, nā waikawa, nā alkalis; mai ka wela/nā mea hoʻēmi.
- • Nā kapu: Mai hoʻohuihui i ka waikawa conc. + hypophosphite (phosphine ʻawahia). E hoʻoheheʻe mua i nā mea paʻa i loko o ka wai DI.
- • Hoʻoulu ea: Hoʻopuka kūloko ma luna o nā pahu (wehe ʻana i ka hydrogen).
- • Pilikia: Holoi maka, ʻauʻau, mea kinai pauka maloʻo/CO₂, mea hanu, pahu hoʻokahe.
12. Ka Palekana Kaiapuni
- • Wai ʻino: Hoʻokaʻawale ʻia ka wai ʻino Ni; pH 9–10 + PAC/PAM; Ni <0.5 mg/L.
- • ʻŌpala weliweli: ʻAuʻau i hoʻohana ʻia, nā kānana, mea hoʻoulu, lepo Ni - hoʻolei laikini ʻia me nā palapala hōʻike.
- • Hoʻokuʻu ʻana: Hoʻomau ka ea; e nānā i ka ammonia/haikokene no GB 16297.
- • Ikehu/wai: E hoʻokaʻawale i nā pahu; holoi i ke kahe kū'ē; hoʻopiha hou ʻia me ka nui.
13. Ka Hoʻonohonoho ʻana o ka ʻAuʻau (Mid‑Phosphorus, Nā ʻĀpana Laulā)
| Kemika | Ka noʻonoʻo ʻana | Hana |
| NiSO₄·6H₂O | 25–35 g/L | Paʻakai nui, kumu Ni²⁺ |
| NaH₂PO₂·H₂O | 25–35 g/L | Mea hoʻemi, kumu P |
| Na₃C₆H₅O₇·2H₂O | 30–40 g/L | Mea hoʻopili |
| CH₃COONa·3H₂O | 15–25 g/L | pH buffer |
| ʻAkika lactic/propionic | 5–10 mL/L | Mea hoʻolalelale |
| Mea hoʻopaʻa (thiourea) | 1–2 mg/L | Kāohi i ka palaho |
Hoʻonani:
1. E hoʻoheheʻe i ka NiSO₄, citrate, acetate i loko o ka wai 1/3 DI, 60℃.
2. E hoʻoheheʻe i ka hypophosphite + ka waikawa lactic i loko o kekahi 1/3.
3. E hoʻohui, e hoʻopiha a hiki i ka nui, pH 4.8–5.2.
4. E hoʻohui i ka mea hoʻopaʻa, wela i 88 ℃, kānana, pā hoʻāʻo.
14. Lako a me ka hiki ke nānā
14.1 Nā Lako Nui
| Lako | Nā kikoʻī |
| Pahu hoʻopili | Hoʻopaʻa ʻia ʻo PP/PVC, hoʻomehana ʻia, ka mana mahana |
| Kānana ʻana | ʻO ka pamu pale ʻakika + hale, 5–10 μm, 1–3×/h |
| Kaohi mahana | PID, ±1℃ |
| Umu hoʻomaloʻo | Ea wela, 60–120 ℃ |
| Mea hoʻomaʻemaʻe ultrasonic | 40 kHz, mana hiki ke hoʻololi ʻia |
| Wai DI | ≥10 MΩ·cm |
14.2 Nā Lako Nānā
| Lako | Pololei/Kūlana Maʻamau |
| Mānoanoa XRF | 0–200 μm, ±0.1 μm |
| Paʻakikī liʻiliʻi | 10–1000 gf, GB/T 4340.1 |
| Keʻena pīpī paʻakai | GB/T 10125, ≥200 L |
| ʻO ka microscope metallographic | 100–1000×, mikomika |
| mika pH | ±0.02, uku pānaʻi mahana |
| Kaulike loiloi | 0.01 g |
15. Palapala a me ka Hiki ke Hahai ʻia
- •Moʻolelo hana:ʻĀpana helu, ka nui, ka mahana, ka pH, ka manawa, ka mānoanoa, ka mea hana.
- •Lāʻau ʻauʻau:Ni²⁺ i kēlā me kēia lā, hypophosphite, pH; hoʻohui; kānana/hoʻomaʻemaʻe.
- •Moʻolelo nānā:Mānoanoa, paʻakikī, pipili, helehelena, pīpī paʻakai.
- •Mālama:Ka hoʻoponopono ʻana, mālama ʻana i ka pamu, wehe ʻana i ka unahi, nā nānā ʻana i ka peʻahi (i kēlā me kēia hapaha).
Paʻa:≥3 mau makahiki (≥10 mau makahiki no ke kaʻa/lapaʻau). Hiki ke hahai ʻia i ke kaʻina hana batch/ʻauʻau.
16. Nā Hoʻolako Pākuʻi
- • Nānā ʻia i kēlā me kēia makahiki e ka ʻOihana ʻenehana.
- • Ua palapala ʻia a ua hahai ʻia nā koi kūikawā o ka mea kūʻai aku (paʻakai pīpī, paʻakikī, hoʻolaha ʻana, H-embrittlement).
- • Nā huahana hou: Hoʻāʻo liʻiliʻi mua; hana nui ma hope o ka hala ʻana i nā hoʻāʻo āpau.
- • No ka kaohi hana ʻana a me ka loiloi ʻana i nā mea kūʻai aku.
Moʻolelo Hoʻoponopono
| Rev. | Lā | ʻIke hoʻoponopono | Ua ʻāpono ʻia e |
| V1.0 | 2024-xx-xx | Hoʻokuʻu mua ʻia | — |
| V2.0 | 2026-04-30 | Hoʻoponopono piha no ka ʻōlelo Pelekania wale nō | — |
Ka manawa hoʻouna: Mei-18-2026