Plating pretreatment oil remover composite and preparation and use methods thereof

A technology for pre-electroplating treatment and degreasing agent, applied in the field of pre-plating degreasing agent composition, can solve problems such as environmental protection requirements, corrosion of active substrates, damage to human health, etc., and achieves large oil pollution load, strong degreasing ability, Easy to clean effect

Inactive Publication Date: 2011-01-26
济南德锡科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, most of the common inorganic degreasers on the market contain a large amount of strong alkali sodium hydroxide, and some also contain highly toxic sodium cyanide, which will corrode active substrates, such as aluminum alloys, magnesium alloys, zinc alloys, etc.
During use, it usually needs to be heated to a higher temperature to play a role. At this time,

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The composition of the degreaser is as follows

[0041] 20 parts by weight of sodium carbonate

[0042] Sodium phosphate 20 parts by weight

[0043] BNO 12 15 parts by weight

[0044] Sodium hydroxide 2g parts by weight

[0045] 40 parts by weight of inorganic emulsifier

[0046] 7 parts by weight of organic emulsifier

[0047] 1000 parts by weight of deionized water

[0048] The preparation process is: put 500 parts by weight of deionized water in the reactor, weigh 20 parts by weight of sodium carbonate, 20 parts by weight of sodium phosphate, 2 parts by weight of sodium hydroxide and 40 parts by weight of inorganic emulsifier , add water in turn, fully stir to dissolve; cool down to room temperature, add 15 parts by weight of β-naphthol polyoxyethylene ether and 2 parts of organic emulsifier in 7, stir for 0.5h, after completely dissolving, constant volume and stir evenly.

[0049] This formula is suitable for highly active substrates such as...

Embodiment 2

[0052] The composition of the degreaser is as follows

[0053] 40 parts by weight of sodium carbonate

[0054] Sodium Phosphate 15 parts by weight

[0055] BNO 12 10 parts by weight

[0056] Sodium hydroxide 10g parts by weight

[0057] 60 parts by weight of inorganic emulsifier

[0058] 8 parts by weight of organic emulsifier

[0059] 1000 parts by weight of deionized water

[0060] Preparation method is with embodiment 1.

[0061] This formula is suitable for the degreasing of zinc and zinc alloys. Its activity is weaker than that of aluminum and magnesium, and its alkalinity will not cause corrosion to it. Therefore, the amount of sodium hydroxide and sodium carbonate can be increased, and the degreasing temperature can be increased. It can ensure that the base material is not corroded, and the degreasing effect is improved.

[0062] Keep the degreasing agent solution at 40-45°C, add the workpiece into it, and slightly reduce the degreasing time,...

Embodiment 3

[0064] The composition of the degreaser is as follows

[0065] 60 parts by weight of sodium carbonate

[0066] Sodium phosphate 10 parts by weight

[0067] BNO 12 30 parts by weight

[0068] 15 parts by weight of sodium hydroxide

[0069] Inorganic emulsifier 80 parts by weight

[0070] 9 parts by weight of organic emulsifier

[0071] 1000 parts by weight of deionized water

[0072] Preparation method is with embodiment 1.

[0073] This formula is suitable for degreasing copper, copper alloys and iron parts. These substrates are insoluble in alkaline solutions, so stronger alkaline degreasing fluids can be used. The oil removal temperature can also be raised to 50-70°C.

[0074] Keep the temperature of the degreasing agent solution at about 60°C, put the workpiece into it, and the degreasing time is 5-7min to achieve the degreasing effect. Take it out, rinse it, and perform acid copper plating for 15 minutes. After taking it out and rinsing it, th...

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PUM

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Abstract

The invention relates to a plating pretreatment oil remover composite and the preparation and use methods thereof. The oil remover composite can be widely used to remove oil from the surfaces of various base materials such as iron, copper, copper alloy, zinc, zinc alloy, aluminum and aluminum alloy and have the advantages of high efficiency, low concentration, long service life and environmental friend. The oil remover composite contains inorganic matter, nonionic surfactant and organic additive, uses deionized water as the solvent and comprises the following components in parts by weight: 20-60 parts of sodium carbonate, 10-20 parts of sodium phosphate, 15-30 parts of beta-naphthol ethoxylate, 1-30 parts of sodium hydroxide, 40-80 parts of inorganic emulsifier, 7-9 parts of organic emulsifier and 1000 parts of deionized water.

Description

[0001] technical field [0002] The invention relates to an electroplating pretreatment process, in particular to an electroplating pretreatment degreaser composition and a preparation and use method thereof. Background technique [0003] The substrate is the main body in metal finishing. The quality of the substrate is closely related to the performance of the final product. In order to prevent the substrate from being oxidized by oxygen in the air, the surface of the substrate is generally protected by a layer of grease. These greases must be cleaned before electroplating, otherwise defects will appear on the coating, such as pinholes, burrs, etc., which will lead to electroplating failure and rework in severe cases, resulting in loss of balance and stability of the plating solution. Therefore, it is very important to choose a high-quality degreasing product during the electroplating process. [0004] Commonly used degreasing products include organic and inorganic produ...

Claims

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Application Information

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IPC IPC(8): C25D5/34C23G1/14
Inventor 宋邦强朱艳丽王凯铭
Owner 济南德锡科技有限公司
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