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name said
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oxidation Auxiliary Agent
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model/specification
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AL-CP2
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characteristics
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- Aluminum chemical polishing additive AL-CP2 has stable performance and simple operation.
- The treated aluminum or aluminum alloy has excellent brightness and is especially suitable for products with high brightness requirements.
- Reduce the release of nitrogen oxide gas and pollution.
- The solution has high stability and low production cost.
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conditions of use
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scope
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standards
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concentrated phosphoric acid
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93%-95% (volume ratio)
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94% (volume ratio)
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concentrated nitric acid
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5-7% (volume ratio)
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6% (volume ratio)
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AL-CP2
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3-8 g/l
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3-8 g/l
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share of
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1.64-1.71
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1.68
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temperatures
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95-110℃
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100℃
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of time
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30 seconds-3 minutes
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stir
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swing
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cylinder material
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Stainless steel SUS 316L
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Process flow (aluminum or aluminum alloy):
Mechanical polishing → degreasing (degreasing powder AL-CLEAN DA5, PC-25 or special degreasing agent MC)→ sanding (AL-EN)→ stain and film removal (stain remover AL-D30)→ chemical polishing (AL-CP2)→ stain and film removal (stain remover AL-D30)→ anodic oxidation (sulfuric acid)→ dyeing → hole sealing (high temperature sealing agent SH-900 or room temperature sealing agent PLS)→ hot pure water washing → drying
Supplementary methods:
- Adjustable specific gravity of phosphoric acid
- After determining the replenishment amount of phosphoric acid, nitric acid should also be added in accordance with the proportion of opening the cylinder
- When the total amount of phosphoric acid and nitric acid added is 1 liter, the polishing agent AL-CP2 3-8 g/liter should be added,(the addition amount is determined according to the actual production situation) and so on at this ratio. Add AL-CP2 powder to the phosphoric acid and nitric acid to be added, stir and dissolve before adding it to the polishing tank.
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package and storage
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10 kg/box or 25 kg/barrel, stored in a cool and dry warehouse. Direct sunlight is strictly prohibited, high temperatures and high temperatures must be closed and sealed after use.
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precautions
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- Swing is required during operation
- Stain and film removal are needed before and after polishing
- Remove excess water before polishing
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This additive can be used in the following three types:
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conditions of use
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scope
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concentrated phosphoric acid
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50%-90% (volume ratio)
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concentrated nitric acid
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5-20% (volume ratio)
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concentrated sulfuric acid
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5-30% (volume ratio)
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AL-CP2
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5-10 g/l
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temperatures
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95-120℃
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of time
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30 seconds-90 seconds
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Characteristics: Low production cost and good stability, but the solution temperature is relatively high and more smoke is generated.
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conditions of use
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scope
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concentrated phosphoric acid
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93% (volume ratio)
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concentrated nitric acid
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7% (volume ratio)
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AL-CP2
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5-10 g/l
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temperatures
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95-120℃
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of time
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1-3 minutes
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Characteristics: The solution temperature is relatively high, less smoke is generated, and the polishing effect is brighter. This is one of the most commonly used methods.
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conditions of use
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scope
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concentrated phosphoric acid
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50%-90% (volume ratio)
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concentrated sulfuric acid
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10-50% (volume ratio)
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AL-CP2
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5-10 g/l
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temperatures
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95-120℃
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of time
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10 seconds-60 seconds
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Features: The solution temperature is relatively high, which can produce a semi-bright effect. This is a method suitable for precision parts.
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