KCR-25 Chrome Plating Brightener with Fast Deposition Speed Chloride-Free Formula for High Micro-Hardness Hard Chromium Plating
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Evidenziare
Fast Deposition Speed Chrome Plating Brightener
,Chloride-Free Hard Chromium Plating Additive
,High Micro-Hardness KCR-25 Brightener
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ArticoloAgente ausiliario chimico
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TipoCromo di lucentezza
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CaratteristicheGrado industriale
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ModelloKCR-25
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Luogo di origineCina
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MarcaFENGFAN
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Numero di modelloKCR-25
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Quantità di ordine minimoNegoziabile
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PrezzoNegoziabile
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Imballaggi particolariPackaging di esportazione standard
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Tempi di consegna15-25 giorni di lavoro
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Termini di pagamentoL/C, D/A, D/P, T/T, Western Union, MoneyGram
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Capacità di alimentazione200000pcs/giorno
KCR-25 Chrome Plating Brightener with Fast Deposition Speed Chloride-Free Formula for High Micro-Hardness Hard Chromium Plating
KCR-25 Hard Chrome Plating Chemicals Brightener High Cathode Efficiency
1. Properties
1. With high cathode efficiency, it may be up to 23%-26%.
2. The current density even over 60A/dm2 is available.
3. The deposition speed for KCR-25 bath is 2-3 times faster than conventional hard chromium process.
4. It is chloride-free, the KCR-25 process dose not cause erosion of the workpiece in low current density area.
5. The micro-hardness of the plating is up to 950HV-1100HV100.
6. The amount of the micro cracks of the plating may be up to 400/cm, so it improves the corrosion resistance ability of the plating.
2. Bath composition & Operation condition
|
|
Operation range |
Standard |
|
Chromium trioxide |
200~275g/L |
250g/L |
|
KCR-25 Catalyst |
|
20ml/L |
|
Sulfuric acid |
2.5~4g/L |
2.7g/L |
|
Temperature |
50~60℃ |
58℃ |
|
Cathode current density(Dk) |
50~75A/dm2 |
60A/dm2 |
|
Anodic current density |
15~30A/dm2 |
30A/dm2 |
3. Reference Data
1. Deposition rate
|
Current Density (A/dm2) |
Deposition rate (μm/h) |
|
30 |
20-35 |
|
45 |
40-50 |
|
60 |
50-70 |
|
7.5 |
70-90 |
2. Bath density and concentration of chromic anhydride control
|
Chromium trioxide |
Bath density |
Baume degree (15℃) |
Baume degree (60℃) |
|
180 |
1.13 |
16.7 |
16.7 |
|
195 |
1.14 |
17.8 |
15.9 |
|
210 |
1.15 |
18.9 |
17.0 |
|
225 |
1.16 |
20.0 |
18.1 |
|
240 |
1.17 |
21.1 |
19.1 |
|
255 |
1.18 |
22.1 |
20.1 |
|
270 |
1.19 |
23.2 |
21.0 |
|
285 |
1.20 |
24.2 |
21.9 |
|
300 |
1.21 |
25.2 |
22.7 |
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