产品中心
Products
HAIHUA LW-38 Two Acids Chemical Polishing Additive (Yellow Smoke-free) (Liquid)
Product Introduction
LW-38 is a kind of dark brown to black liquid, it’s mainly applicable to the aluminum alloy chemical polishing treatment of sanding surface, brushing surface, glossy, mechanical polishing effect, which can make them have similar high glossiness and mirror effect comparable to the three acids chemical polishing process.
Features:
1) LW-38 is an environmental protection for it is free of nitric acid、nitrate and nitrite, for it’s compositions are very environmental friendly, it is odorless and smokeless during the polishing process as well as it will not produce toxic gases;
2) No need the exhaust purification equipment, which can also achieve a comfortable working environment;
3) LW-38 requires lower processing temperature and makes lower energy consumption than three acids chemical polishing.
Bath Make-up:
NameQuantityUnit
1) Phosphoric Acid (85%) : Sulphuric Acid (98%) =7:3 bath make-up
LW-3850-70kg
Phosphoric Acid (85%)700L
Sulphuric Acid (98%)300L
Aluminum Chips ( washed cleanly)30kg
2) Phosphoric Acid (85%) : Sulphuric Acid (98%) =1:1 bath make-up
LW-3850-70kg
Phosphoric Acid (85%)500L
Sulphuric Acid (98%)500L
Aluminum Chips (washed cleanly)30kg
Note: If the bath size is large than 5m3, it is generally recommended to apply the ratio of phosphoric acid (85%) : sulphuric acid (98%) =7:3 for two acids bath make-up; while the bath size is less than 5m3 and the polishing effect requirement is not very high, can apply the ratio of phosphoric acid (85%) : sulphuric acid (98%) =1:1 for two acids bath make-up.
Operating Conditions:
NameQuantityUnit
1) Phosphoric Acid (85%) : Sulphuric Acid (98%) =7:3 operation conditions
Polishing Temperature80-110
Polishing Time60-360s
Dripping Time20-120s
Phosphoric Acid Content48-58%
Sulphuric Acid Content23-33%
Water Content10-16%
2) Phosphoric Acid (85%) : Sulphuric Acid (98%) =1:1 operation conditions
Polishing Temperature80-110
Polishing Time60-360s
Dripping Time20-120s
Phosphoric Acid Content36-44%
Sulphuric Acid Content38-46%
Water Content8-12%
Solution Maintenance:

Maintenance of LW-38 bath solution is quite simple:

1) Replenish the phosphoric acid, sulphuric acid, LW-38 by proper bath make-up ratio when the bath solution level gets down (no need to add aluminum chips when replenishment);

2) No need to analyze the solution frequently, it is suggested to analyze the phosphoric acid, sulphuric acid, water, and aluminum ions content every few days or when problems occur, then adjust them to be within the parameter range.
Packaging and Storage:
Package: Plastic barrel (25kg/barrel)
Storage: Suggested to store in cool, dry and well ventilated place; away from fire and heat source.