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Metal cleaning agent

A technology of metal cleaning agent and surfactant, which is applied to cleaning and rust prevention in the process of metal material processing. It can solve the problems of long cleaning time, high cost, and rust spots, and achieve the effect of low foam, low cost, and easy removal

Inactive Publication Date: 2008-09-24
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After cleaning, the metal surface is exposed to the air and is easy to rust, so it is usually treated with an anti-rust agent during cleaning, which takes a long time and costs a lot
The current process generally adopts cleaning first, and then anti-rust treatment; a few cleaning and anti-rust treatment at the same time, the anti-rust effect is not good, some rust spots appear after a few hours, and rust spots appear after a few days after the anti-rust effect is good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Oleic Acid 5.0%

[0012] Sodium Hydroxide 0.85%

[0013] Nonylphenol polyoxyethylene ether (TX-10) 15.0%

[0014] polyether 61 0.6%

[0015] Sodium nitrite 0.1%

[0016] Sodium molybdate 0.2%

[0017] Benzotriazole 0.1%

[0018] Trisodium Phosphate 2.0%

[0019] Triethanolamine 2.2%

[0020] distilled water to 100

[0021] The reaction steps of feeding according to the above-mentioned component distribution ratio are as follows:

[0022] 1. In the reaction pot, add distilled water and sodium hydroxide, heat and dissolve evenly;

[0023] 2. Add oleic acid under stirring, and keep the temperature at about 80°C for 1 hour to completely neutralize the oleic acid;

[0024] 3. Stop heating, add surfactant nonylphenol polyoxyethylene ether (TX-10) and polyether 61 , dissolve and disperse evenly;

[0025] 4. Add trisodium phosphate, sodium nitrite and sodium molybdate to dissolve and disperse evenly;

[0026] 5. Add triethanolamine and benzo...

Embodiment 2

[0030] With reference to the preparation steps of Example 1, the metal cleaning agent is prepared according to the following mass percentage composition ratio:

[0031] Oleic Acid 8.0%

[0032] Sodium Hydroxide 0.5%

[0033] Fatty alcohol polyoxyethylene ether (AEO 9 ) 12.0%

[0034] polyether 61 0.9%

[0035] Sodium nitrite 0.5%

[0036] Sodium molybdate 0.8%

[0037] Benzotriazole 0.15%

[0038] Trisodium Phosphate 2.5%

[0039] Triethanolamine 3.0%

[0040] Distilled water to 100.

Embodiment 3

[0042] With reference to the preparation steps of Example 1, the metal cleaning agent is prepared according to the following mass percentage composition ratio:

[0043] Oleic Acid 4.0%

[0044] Sodium Hydroxide 1.1%

[0045] Fatty alcohol polyoxyethylene ether 10.0%

[0046] polyether 61 0.5%

[0047] Sodium nitrite 0.3%

[0048] Sodium molybdate 0.5%

[0049] Benzotriazole 0.08%

[0050] Trisodium Phosphate 2.0%

[0051] Triethanolamine 2.0%

[0052] Distilled water to 100.

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PUM

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Abstract

The invention provides a metal washing agent which is formed by the reactions of a surface promoting agent, oleic acid, sodium hydroxide, sodium nitrite, sodium molybdate, benztotriazole, trisodium phosphate, trolamine, polyether61 and distilled water. The weight portions of each component are: 10 to 15 portions of the surface promoting agent, 4 to 8 portions of the oleic acid, 0.5 to 1.1 portions of the sodium hydroxide, 0.1 to 0.5 portions of the sodium nitrite, 0.3 to 0.84 portions of the sodium molybdate, 0.08 to 0.15 portions of the benztotriazole, 1.5 to 2.5 portions of the trisodium phosphate, 1.5 to 3.0 portions of the trolamine, 0.5 to 0.9 portions of the polyether61 and the rest portions are the distilled water. The metal washing agent provided by the invention has good washing effect and can maintain the metal materials after being washed without rust in 15 to 20 days.

Description

technical field [0001] The present invention relates to metal cleaners. More specifically, it refers to cleaning and rust prevention in the process of metal material processing. Background technique [0002] In the machining process, metal materials are made into mechanical parts, most of which rely on cold working processes. According to the basic size requirements of the parts, cold processing such as turning, drilling, milling, boring, grinding, etc. is performed on metal plates, bars, wires, profiles, casting blanks, forging blanks, etc., until they are processed to the specified size and accuracy. The processing process is carried out step by step according to the type of work. A processing cycle can be as short as a few days, or as long as dozens of days. Sometimes it is temporarily stored in the warehouse during step-by-step processing, and dirt will be generated on the surface of metal parts. It is necessary to clean the surface of metal material parts to remove v...

Claims

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Application Information

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IPC IPC(8): C23G1/14
Inventor 谭桂娥何巧红
Owner ZHEJIANG UNIV
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