MX-ZN510 cyanide-free alkaline zinc
nickel alloy
Features:
1. Nickel contains 12-15%,
great corrosion resistance, pass neutral salt spray test：over 240h for white rust, over 720h for red
rust.
2. Good heat
resistance, HV350-450 in Vicker's hardness, 750-800℃ in melting point, applicable for
automobile engine.
3. Good soldering, ductility,
flexibility, cohesion, low internal stress and produce no foams.
4. Fine and smooth
crystallization, free to adjust various brightness from super bright, bright to
semi-bright.
5. Get better
corrosion after being processed with trivalent chromium blue passivation,
iridescent passivation, nature color passivation or blocking agent.
6. Use insoluble
nickel anode and zinc-dissolved tank. Easy to manage plating solution.
Applicable for barrel and rack plating.
Process and operation
condition:
|
Materials and
operate conditions
|
Scope
|
Standard value
|
|
Metal zinc
Zn(g/l)
|
7-9
|
8
|
|
NaoH (g/l)
|
120-140
|
130
|
|
Nickel concentrate
MX-ZN515 (ml/l)
|
12-16
|
14
|
|
complex agent
MX-ZN511 (ml/l)
|
40-60
|
50
|
|
complex agent
MX-ZN512 (ml/l)
|
70-90
|
80
|
|
Soften agent
MX-ZN513 (ml/l)
|
4-8
|
6
|
|
Brighten agent
MX-ZN516 (ml/l)
|
0.5-1.5
|
1
|
|
Displacement agent
MX-ZN517 (ml/l)
|
1-3
|
2
|
|
Temperature
|
23-28
|
25
|
|
Cathode movement
|
|
need
|
|
Filter
|
Continuous
filter
|
2-4 times/H
|
|
Anode
|
Nickel board
|
99．99%
|
|
Cathode current
density
|
1-4A/dm2
|
2．5A/dm2
|
|
Anode current
density
|
6-10A/dm2
|
8 A/dm2
|
|
Deposit rate
|
Rack plating 0.2-0.3um/2A/min/dm2
Barrel plating
0.1-0.15um/1A/min/dm2
|
consumption amount:
|
Nickel concentrate
MX-ZN515
|
700-1000ml/kAh
|
|
Soften agent
MX-ZN513
|
80-120 ml/kAh
|
|
Brighten agent
MX-ZN516
|
100-150 ml/kAh
|
|
Displacement agent
MX-ZN517
|
50-100 ml/kAh
|
Tips: Nickel concentrate MX-ZN515 contains nickel with
complex and necessary composition used for adjust complex agent MX-ZN511 and MX-ZN512
needed. Because, generally, it’s hard for customers to analyze, especially to a
precise degree, it’s advised that control the amount of zinc within precise
scope and adjust the consumption of MX-ZN515 by the appearance of plating, Hull
cell, X-ray. The consumption of MX-ZN511/512 are certainly related to the
current efficiency of plating solution.
