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General electrolytic degreasing agent of precision electron member steel, stainless steel, aluminum, copper and zinc mixed workpiece

A precision electronic and electrolytic degreasing technology, applied in the field of electrolytic degreasing agents for metal workpieces, can solve the problems of blackened metal substrates, incomplete removal, and slow cleaning speed

Inactive Publication Date: 2014-04-23
DALIAN SANDAAOKE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since there is currently no universal electrolytic degreasing agent for precision electronic component steel, stainless steel, aluminum, copper, and zinc mixed workpieces, there are problems such as slow cleaning speed, high temperature conditions, and incomplete removal, and even some workpieces will be overgrown. Corrosion phenomenon, the surface is blackened (the true color of the metal substrate cannot be exposed), which destroys the surface finish of the workpiece

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0007] The raw materials and mass percentages used are as follows: potassium oxide 1%, sodium carbonate 2%, trisodium phosphate 4%, sodium tripolyphosphate 3%, anhydrous potassium metasilicate 4%, ethylenediaminetetraacetic acid disodium (EDTA-2Na ) 1%, 4% low-foaming surfactant for strong alkali-resistant electrolytic degreasing, 1% surfactant for wax removal water, 1% penetrating agent JFC, 0.5% defoamer and the balance of water.

[0008] The production method is carried out according to the following steps: add the calculated and weighed water into the reaction kettle, start the agitator, control the speed at 120 rpm, and then add the calculated and weighed potassium oxide, sodium carbonate, trisodium phosphate, and sodium tripolyphosphate , Potassium metasilicate anhydrous, disodium ethylenediaminetetraacetic acid (EDTA-2Na), low-foaming surfactant for strong alkali-resistant electrolytic degreasing, surfactant for wax removal water, penetrant JFC and defoamer (MS575 ) int...

Embodiment 2

[0011] The raw materials and mass percentages used are as follows: potassium oxide 0.5%, sodium carbonate 4%, trisodium phosphate 2%, sodium tripolyphosphate 5%, anhydrous potassium metasilicate 2%, ethylenediaminetetraacetic acid disodium (EDTA-2Na ) 2%, special low-foaming surfactant for strong alkali-resistant electrolytic degreasing 2%, special surfactant for wax removal water 2%, penetrating agent JFC 0.5%, defoamer 1% and water balance.

[0012] Raw material source and production method are with embodiment 1.

Embodiment 3

[0014] The raw materials and mass percentages used are as follows: potassium oxide 0.8%, sodium carbonate 3%, trisodium phosphate 3%, sodium tripolyphosphate 4%, anhydrous potassium metasilicate 3%, ethylenediaminetetraacetic acid disodium (EDTA-2Na ) 1.5%, special low-foam surfactant for strong alkali-resistant electrolytic degreasing 3%, special surfactant for wax removal water 1.5%, penetrating agent JFC 0.8%, defoamer 0.8% and water balance.

[0015] Raw material source and production method are with embodiment 1.

[0016] Embodiment 1, 2 or 3 of the present invention is made into working solution by adding water according to the concentration of 15-20% in mass percentage, and adopts electrolytic cleaning equipment to clean the mixed workpieces of precision electronic components steel, stainless steel, aluminum, copper and zinc respectively, and the working bath solution Temperature 60~80℃, anode current density 1.5~2.5A / dm 2 , voltage 12~24V, time 1.5~3min, the result is...

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PUM

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Abstract

The invention discloses a general electrolytic degreasing agent of a precision electron member steel, stainless steel, aluminum, copper and zinc mixed workpiece, and the general electrolytic degreasing agent is characterized by comprising the following raw material: by mass, 0.5-1% of potassium hydroxide, 2-4% of sodium carbonate, 2-4% of trisodium phosphate, 3-5% of sodium tripolyphosphate, 2-4% of anhydrous potassium metasilicate, 1-2% of ethylenediamine tetraacetic acid disodium salt (EDTA-2Na), 2-4% of a strong alkali resistant electrolytic degreasing special low foam surfactant, 1-2% of a wax solvent special surfactant, 0.5-1% of penetrating agent JFC, 0.5-1% of a defoaming agent and the balance of water. The general electrolytic degreasing agent may not corrode electrolytic cleaning equipment, and can quickly and completely remove oils and fats on the surface of the precision electron member steel, stainless steel, aluminum, copper and zinc mixed workpiece within 1.5-3min.

Description

technical field [0001] The invention relates to an electrolytic degreasing agent for metal workpieces, especially a non-corrosive electrolytic cleaning equipment, which can quickly and completely remove the grease on the surface of precision electronic component steel, stainless steel, aluminum, copper, zinc mixed workpiece surface grease, precision electronic component steel, stainless steel, General electrolytic degreasing agent for aluminum, copper and zinc mixed workpieces. Background technique [0002] Electrolytic degreasing is a degreasing method that uses the workpiece as the cathode or anode and electrolyzes it in an alkaline cleaning solution. A large amount of gas generated by electrolysis can remove grease and other dirt on the surface of the workpiece to ensure the bonding force between the substrate of the workpiece and the coating. However, since there is currently no universal electrolytic degreasing agent for precision electronic component steel, stainless ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25F1/00
Inventor 朱国玉潘德顺李振忠鄂国庆娄金生张丛生
Owner DALIAN SANDAAOKE CHEM
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