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Aluminum and aluminum alloy film removing agent and application thereof

A technology of aluminum alloy and film agent, applied in the field of aluminum and aluminum alloy electroplating, aluminum and aluminum alloy film remover, to achieve good electroplating effect

Active Publication Date: 2018-02-23
GUANGZHOU SANFU NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Based on this, it is necessary to provide an aluminum and aluminum alloy film remover and its application

Method used

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  • Aluminum and aluminum alloy film removing agent and application thereof
  • Aluminum and aluminum alloy film removing agent and application thereof
  • Aluminum and aluminum alloy film removing agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0114] The composition of aluminum and aluminum alloy film remover is as follows:

[0115]

[0116] Wherein the comparative product is a component of a commonly used film remover.

[0117] The film remover solution is prepared by adding aluminum and aluminum alloy film remover to water at 500ml / L.

[0118] Film removal experiment:

[0119] (1) Take 6 aluminum alloys of the same size to be electroplated, and number them respectively. The numbers are: ①, ②, ③, ④, ⑤ and ⑥. In the aluminum and aluminum alloy film remover prepared in the above table. Specifically, ① placed in product 1, ② placed in product 2, ③ placed in product 3, ④ placed in product 4, ⑤ placed in product 5, ⑥ placed in the comparison product . After 120 seconds, take it out and observe.

[0120] (2) Perform electroplating on the aluminum alloy sheet after film removal under the same conditions.

[0121] The electroplating step adopts the above electroplating solution components and electroplating condit...

Embodiment 2

[0129] The composition of the aluminum alloy aluminum alloy film remover is as follows:

[0130]

[0131]

[0132] The film remover solution is prepared by adding aluminum and aluminum alloy film remover to water at 600ml / L.

[0133] Film removal experiment:

[0134] (1) Take 3 aluminum alloy sheets, respectively numbered ⑦, ⑧ and ⑨, after the same pretreatment, place ⑦~⑨ in the aluminum and aluminum alloy film remover prepared in the above table at 25 °C. Specifically, ⑦ is placed in the product 7, ⑧ is placed in the product 8, and ⑨ is placed in the product 9. After 120 seconds, take it out and observe.

[0135] (2) Perform electroplating on the aluminum alloy sheet after film removal under the same conditions.

[0136] The electroplating step adopts the above electroplating solution components and electroplating conditions or the existing commonly used electroplating solution components and electroplating conditions for electroplating.

[0137] Result analysis:

...

Embodiment 3

[0142] The composition of the aluminum alloy aluminum alloy film remover is as follows:

[0143]

[0144] The film remover solution is prepared by adding aluminum and aluminum alloy film remover to water at 400ml / L.

[0145] Film removal experiment:

[0146] (1) Take 3 pieces of aluminum alloy sheets, numbered ①, ② and ③ respectively. After the same pretreatment, place ①, ② and ③ in the aluminum and aluminum alloy film remover prepared in the above table at 25°C. . Specifically, ① placed in the product 10, ② placed in the product 11, and ③ placed in the product 12. After 120 seconds, take it out and observe.

[0147] (2) Perform electroplating on the aluminum alloy sheet after film removal under the same conditions.

[0148] The electroplating step adopts the above electroplating solution components and electroplating conditions or the existing commonly used electroplating solution components and electroplating conditions for electroplating.

[0149] Result analysis: ...

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Abstract

The invention relates to an aluminum and aluminum alloy film removing agent. The aluminum and aluminum alloy film removing agent comprises the following components: 200-600g / L of composite acid, 30-150g / L of a composite oxidant, 2-20g / L of a silicon remover, 0.1-20g / L of corrosion inhibitor, 0.1-50g / L of a stabilizer, 0.1-50g / L of an ash removal film agent and water, wherein the composite acid isselected from at least two of sulfuric acid, aminosulfonic acid, fluoboric acid and chloric acid; and the composite oxidant is selected from at least two of hydrogen peroxide, persulfate, perborate and percarbonate. On the premise of guaranteeing the film removal effect of the aluminum and the aluminum alloy, the aluminum and aluminum alloy film removing agent reduces treatment difficulty of industrial waste gas and industrial wastewater after aluminum and aluminum alloy electroplating.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to an aluminum and aluminum alloy film removing agent, an aluminum and aluminum alloy film removing method, and an aluminum and aluminum alloy electroplating method. Background technique [0002] Aluminum and aluminum alloys have the advantages of high mechanical strength and high ductility, easy processing, high specific strength, and light weight. They are widely used in construction, hardware, electronics, automobiles, ships, aircraft, aerospace and other fields. [0003] Electroplating of aluminum and aluminum alloys is the process of depositing a thin layer of metal or alloy on a solid surface by electrochemical methods. Because aluminum has strong electronegativity and strong affinity for oxygen, it is easier to form an oxide film, and aluminum is an amphoteric metal, which is unstable in acid and alkali. In addition, the expansion coefficient of aluminum is large, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/12C25D5/44
CPCC23G1/125C25D5/44
Inventor 田志斌包志华郭艳红詹益腾
Owner GUANGZHOU SANFU NEW MATERIALS TECH
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