project |
index |
40 concentration liquid composition
|
A component: grooves, light green liquid |
Total acidity of thick liquid |
A:≥800pointsB:≥800points |
Free acidity of thick liquid |
A:≥140pointsB:≥180points |
Concentration of thick liquid |
A:≥1.4t0.06 B: 21.410.06 C: 1.18+0.05 |
Heavy liquid treatment |
85m2/L |
Use concentration |
( A: 20L+C:0.8L) M3 |
Three. Control of process parameters of slots
Total acidity |
Accelerator concentration swim |
Acidity |
Processing method |
temperature |
time |
Tank material |
18-30points |
3- 15points |
0.8-1.2points |
Soak, spray, soak and combine |
Normal temperature -45 |
5-30 minutes |
Carbon steel, stainless steel |
Four, performance index of phosphating film
Phosphating membrane weight |
1.5-5G/m2(l-4um ) |
Amount of sediment |
2-4G/m2 |
|
15 seconds |
3%NACL immersion |
1.5 hours |
Indoor storage |
No rust on fifteen days (relative temperature 60%) |
Phosphating and coating matching |
It is suitable for paint, anodic electrophoresis and powder coating. |
Five. Methods of use