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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Nickel Electroplating

Q. We are manufacturers of mincer machines. We need complete information about the following things:
1- bright nickel plating
2- rectifier

Mohammad Ramzan
- Faisalabad, Punjab, Pakistan
2003

thumbs down sign And without any further information, your needs are not going to be answered.

James Totter, CEF
- Tallahassee, Florida
2003

A. Hi, Mohammad.

Indeed, each of these subjects fill entire books as James implies. I would especially suggest the Metal Finishing Guidebook or the Electroplating Engineering Handbook [on AbeBooks or eBay or Amazon affil links] . After you've had a quick look at one of these, if you have more specific questions, I'm sure James or I, or one of our other readers, will be able to help you address them! Good luck :-)

Regards,

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
December 7, 2010

Q. State different types of baths in the process of nickel electroplating?

Ahmed Ismail
Ainshams University - Cairo, EGYPT

A.
Table 3 - Nickel electroplating solutions

Electrolyte Composition1), g/L 

Watts

Nickel

Nickel

Sulfamate

Semi-Bright

Bath2

  Nickel sulphate, NiSO4.6H2O

225 to 400 

300

  Nickel Sulfamate, Ni (SO3NH2)2

300 to 450 

  Nickel Chloride, NiCl2.6H2O

30 to 60

0 to 30

35

  Boric Acid, H3BO3

30 to 45

30 to 45

45

Operating Conditions

  Temperature, °C

44 to 66

32 to 60

54

  Agitation

Air or
mechanical

Air or
mechanical

Air or
mechanical

  Cathode Current Density, A/dm2

3 to 11

0.5 to 30

3 to 10

  Anodes

Nickel

Nickel

Nickel

  PH
2 to 4.5
3.5 to 5.0

3.5 to 4.5

Mechanical Properties

  Tensile Strength, Mpa

345 to 485

415 to 610

-

  Elongation, %

10 to 30

5 to 30

8 to 20

  Vickers Hardness,

  100 gram load

130 to 200

170 to 230

300 to 400

  Internal Stress, Mpa

125 to 185

(tensile)

0 to 55

(tensile)

35 to 150

(tensile)

RAID B
- Turkey

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Electrolyte Composition1), g/L	Watts Nickel	Nickel Sulfamate	Semi-Bright Bath2
Nickel sulphate, NiSO4.6H2O	225 to 400		300
Nickel Sulfamate, Ni (SO3NH2)2		300 to 450
Nickel Chloride, NiCl2.6H2O	30 to 60	0 to 30	35
Boric Acid, H3BO3	30 to 45	30 to 45	45
Operating Conditions
Temperature, °C	44 to 66	32 to 60	54
Agitation	Air or mechanical	Air or mechanical	Air or mechanical
Cathode Current Density, A/dm2	3 to 11	0.5 to 30	3 to 10
Anodes	Nickel	Nickel	Nickel
PH	2 to 4.5	3.5 to 5.0	3.5 to 4.5
Mechanical Properties
Tensile Strength, Mpa	345 to 485	415 to 610	-
Elongation, %	10 to 30	5 to 30	8 to 20
Vickers Hardness, 100 gram load	130 to 200	170 to 230	300 to 400
Internal Stress, Mpa	125 to 185 (tensile)	0 to 55 (tensile)	35 to 150 (tensile)