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Ash removing agent, preparation method and application thereof, and ash removing method for silicon-aluminum alloy

A silicon-aluminum alloy and deashing agent technology, which is applied in the field of aluminum alloy surface treatment, can solve problems such as poor ash removal performance and affecting the electroplating process

Inactive Publication Date: 2019-07-23
江门市众鸿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, one of the main problems of this system is that the ash removal performance is poor, which affects the subsequent electroplating process.

Method used

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  • Ash removing agent, preparation method and application thereof, and ash removing method for silicon-aluminum alloy
  • Ash removing agent, preparation method and application thereof, and ash removing method for silicon-aluminum alloy

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preparation example Construction

[0040] see figure 1 , the preparation method of the deashing agent of one embodiment, comprises the steps:

[0041]Step S110: Weigh raw materials by mass parts, raw materials include: 1-100 parts of oxidizing agent, 1-100 parts of fluorine-containing salt, 0.01-10 parts of stabilizer, 0.01-10 parts of catalyst, 0.01-10 parts of cosolvent 10 parts, 0.01 to 10 parts of antiscalant and 1 to 200 parts of water.

[0042] Step S120: Mix the oxidant, fluorine-containing salt, stabilizer, catalyst, co-solvent, scale inhibitor and water to obtain the deashing agent.

[0043] Wherein, the time for mixing the oxidizing agent, fluorine-containing salt, stabilizer, catalyst, co-solvent, scale inhibitor and water is 10 minutes to 240 minutes.

[0044] Specifically, step S120 includes:

[0045] Under the condition of stirring, add fluorine-containing salt and oxidizing agent to the water successively, stir until completely dissolved, and obtain the first stirred liquid;

[0046] Add scal...

Embodiment 1

[0070] The preparation process of the deashing agent of this embodiment is as follows: in parts by mass, add 100 parts of water into the stirring tank, and in the state of stirring, add 20 parts of potassium fluoride and 30 parts of hydrogen peroxide successively, stir until completely dissolved and then add 5 parts of sodium hydroxyethylidene diphosphonate, 1 part of ethylene glycol butyl ether, 10 parts of ethylene glycol, and 2 parts of ferric trichloride were stirred evenly to obtain the deashing agent. Wherein, the mass content of hydrogen peroxide in the hydrogen peroxide is 50%.

[0071] The silicon-aluminum alloy used in this embodiment is a silicon-aluminum alloy sheet obtained by die-casting the aluminum alloy AC-44300. The size of the silicon aluminum alloy sheet is 70mm×50mm×2.5mm.

[0072] The ash removal process of the silicon-aluminum alloy in this example is as follows: After ultrasonic degreasing, pickling and alkali etching, the silicon-aluminum alloy sheet ...

Embodiment 2

[0074] The preparation process of the deashing agent of this embodiment is as follows: in parts by mass, add 200 parts of water in the stirring tank, and in the stirring state, add 50 parts of ammonium fluoride and 30 parts of hydrogen peroxide successively and stir until completely dissolved, then add 2 1 part of hydroxyethylidene diphosphonic acid, 2 parts of ethylene glycol ethyl ether, 4 parts of propylene glycol, and 1 part of nickel sulfate hexahydrate were stirred evenly to obtain the deashing agent. Wherein, the mass content of hydrogen peroxide in the hydrogen peroxide is 50%.

[0075] The silicon-aluminum alloy used in this embodiment is a silicon-aluminum alloy filter cavity obtained by die-casting the aluminum alloy AC-44300. The size of the silicon aluminum alloy filter cavity is 450mm×300mm×70mm.

[0076] The ash removal process of the silicon-aluminum alloy in this embodiment is as follows: after ultrasonic degreasing, pickling and alkali etching, the silicon-a...

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Abstract

The invention relates to an ash removing agent, a preparation method and application thereof, and an ash removing method for silicon-aluminum alloy. Raw materials for preparing the ash removing agentcomprise, in parts by mass, 1-100 parts of an oxidizing agent, 1-100 parts of a fluorine-containing salt, 0.01-10 parts of a stabilizer, 0.01-10 parts of a catalyst, 0.01-10 parts of cosolvent, 0.01 -10 parts of a scale inhibitor and 1-200 parts of water. The ash removing agent has a good ash removing effect, the silicon-aluminum alloy treated by the ash removing agent meets the electroplating requirement, and the pollution to the environment by the ash removing agent is small.

Description

technical field [0001] The invention relates to the technical field of aluminum alloy surface treatment, in particular to a deashing agent, its preparation method, application and a deashing method of silicon aluminum alloy. Background technique [0002] Aluminum alloy is a kind of non-ferrous metal material widely used in industrial manufacturing. For better structural molding, a higher content of silicon is usually added to aluminum alloys, and silicon itself is not easily removed by common pickling and alkali etching. In order to remove silica fume, the traditional commonly used system is the three-acid system (nitric acid, phosphoric acid and hydrofluoric acid), which produces a large amount of nitrogen oxides, hydrogen fluoride volatile gas and phosphorus-containing wastewater during use, causing great environmental damage. pollute. For this reason, some new systems have also been proposed at home and abroad, which do not use nitric acid, phosphoric acid and hydrofluo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/00C25D5/44
CPCC23G1/00C25D5/44
Inventor 张少林林双袁磊柯浪滔歹利宾
Owner 江门市众鸿新材料科技有限公司
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