Alfinox 510 - ENSAV AL process for better colouring or harder layers
The addition of Alfinox 510 liquid additive can meet two different requirements at once, depending on the temperature implemented in the anodising bath. By working at higher temperatures (23 – 27°C), the resulting anodisation layers can be uniformly dyed and also well sealed. If the temperature is lowered to about 10 – 3°C, considerably harder anodisation layers can be achieved, similar to hard-anodised coatings. Two properties in just one solution! The result can be determined using Alfinox 510, simply by selecting the temperature.
Comparison of hardness
Process
Comparison Vickers hardness
HV 0.025
Conventional anodising
< 350
Conventional hard-anodising
≈ 350 – 600
Alfinox 510 at ≈ 10 °C
≈ 350 – 450*
*subject to alloy and bath conditions
Advantages:
Multifunctional – conditional on the temperature of the anodising solution
Lower temperature sensitivity compared to conventional
sulphuric acid - DC baths
Uniform dyeing results at higher Alfinox 510 solution temperatures
Layers comparable to hard-anodising are already achievable at more than 3 °C
Simple conversion from existing sulphuric acid – DC baths
Enables a higher aluminium content up to 35 g/l
Up to 50% savings of sulphuric acid thanks to longer bath service life
Reduction of cooling energy by operating above 21 °C; total cost saving approx. 13%
The content of additive can be analysed and automatically dosed
Typical application parameters for Alfinox 510
130 – 190 g/l
Sulphuric acid
25 g/l
Alfinox 510
Current density
0.8 – 4 A/dm² (depending on requirement)
Temperature
3 – 27 °C (depending on requirement)
Aluminium content
Up to 35 g/l (depending on requirement)
Alfinox 510 – Influence of temperature and properties
3 - 10°C Alfinox 510 23- 27°C
follow us: