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Metal surface degreasing agent

A technology of metal surface and degreasing agent, applied in the field of degreasing agent, can solve the problems of difficult defoaming, high corrosion of materials, large foam, etc.

Inactive Publication Date: 2010-06-16
沈阳晟豪化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional degreasing agents are difficult to completely remove dirt on the surface, and are highly corrosive to materials; the treated metal surface will have adverse effects on the subsequent phosphating and passivation processes; defoaming and other defects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 1. Put 365kg of water, 100kg of sodium hydroxide, and 50kg of potassium hydroxide into the reaction kettle, stir for 30 minutes until they are completely dissolved.

[0013] 2. Put 40kg of sodium tripolyphosphate, 40kg of potassium pyrophosphate and 50kg of sodium silicate into 304kg of water, fully dissolve and add to 1, and stir evenly.

[0014] 3. Add 40kg of BJJ001 and 10kg of AEC into the 1, 2 system and stir evenly.

[0015] 4. Add 0.7kg of silicone defoamer and 0.3kg of tributyl phosphate, stir evenly, and obtain a colorless and transparent metal surface degreaser product.

Embodiment 2

[0017] 1. Put 365kg of water and 150kg of sodium hydroxide into the reaction kettle, stir for 30 minutes until they are completely dissolved.

[0018] 2. Put 60kg of sodium tripolyphosphate and 70kg of sodium silicate into 304kg of water, fully dissolve and add to 1, and stir evenly.

[0019] 3. Add 40kg of BJJ001 and 10kg of AEC into the 1, 2 system and stir evenly.

[0020] 4. Add 0.7kg of silicone defoamer and 0.3kg of tributyl phosphate, stir evenly, and obtain a colorless and transparent metal surface degreaser product.

Embodiment 3

[0022] 1. Put 365kg of water and 150kg of sodium hydroxide into the reaction kettle, stir for 30 minutes until they are completely dissolved.

[0023] 2. Put 60kg of sodium tripolyphosphate and 70kg of sodium silicate into 304kg of water, fully dissolve and add to 1, and stir evenly.

[0024] 3. Add 50kg of BJJ001 into the 1,2 system and stir evenly.

[0025] 4. Add 0.7kg of silicone defoamer and 0.3kg of tributyl phosphate, stir evenly, and obtain a colorless and transparent metal surface degreaser product.

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PUM

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Abstract

The invention provides a metal surface degreasing agent, which aims to solve the problems that the conventional degreasing agent cannot completely remove fouling on the metal surface, and has higher corrosion on materials; and the treated metal surface has adverse influence on subsequent phosphorization and passivation processes. The degreasing agent comprises the following components in percentage by weight: 5 to 25 percent of common alkali, 10 to 15 percent of buffering agent and auxiliary agent, 3 to 5 percent of surfactant, 0.5 to 1 percent of defoaming agent and foam inhibitor, and the balance of water, wherein the common alkali is one or more of sodium hydroxide or potassium hydroxide; the buffering agent and the auxiliary agent are one or more of sodium silicate, sodium tripolyphosphate and potassium permanganate; the surfactant is one or more of BJJ001, BJJ003 and AEC; the defoaming agent and the foam inhibitor are one or more of organic silicon and organic phosphate. The metal surface degreasing agent has the characteristics of high efficiency, safety, environmental protection, low foam and no corrosion on steel plates, zinc, aluminum, copper, plastic or rubber.

Description

technical field [0001] The invention relates to a degreasing agent for metal surface treatment. Background technique [0002] Degreasing plays an important role in metal surface treatment. Traditional degreasing agents are difficult to completely remove dirt on the surface, and are highly corrosive to materials; the treated metal surface will have adverse effects on the subsequent phosphating and passivation processes; Defects such as defoaming. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a metal surface degreasing agent with high efficiency, safety, environmental protection, low foam and small amount, which is suitable for surface degreasing and cleaning of steel plates, zinc, aluminum, copper, plastics, rubber and other materials . [0004] The formula of the present invention is composed of: 15%-25% (percentage by weight, the same below) of commonly used alkali, which is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/16
Inventor 常丽严明
Owner 沈阳晟豪化工有限公司
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