A kind of antirust agent for cold-rolled steel coil after bell type annealing and application method thereof

A technology of hood annealing and anti-rust agent, applied in the field of anti-rust agent, can solve the problems of prolonging the corrosion resistance period and easy rust corrosion of cold-rolled steel coils, so as to prolong the corrosion resistance period, enhance the anti-rust function, and meet the requirements of long-term anti-corrosion. rust effect

Active Publication Date: 2020-10-16
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above-mentioned defects in the prior art, the main purpose of the present invention is to provide an antirust agent for cold-rolled steel coils after bell-type annealing and its application method, so as to solve the problem that cold-rolled steel coils are easily corroded after bell-type annealing. problems, to achieve the purpose of significantly prolonging its corrosion resistance period

Method used

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  • A kind of antirust agent for cold-rolled steel coil after bell type annealing and application method thereof
  • A kind of antirust agent for cold-rolled steel coil after bell type annealing and application method thereof

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Embodiment 1

[0050] The embodiment of the present invention is used for the antirust agent of cold-rolled steel coil after bell type annealing, comprises the composition of following weight ratio:

[0051] Morin: 3%;

[0052] L-malic acid: 3%;

[0053] N-lauryl-β-iminodipropionic acid: 10%;

[0054] Tetradecylamine: 10%;

[0055] Span 80: 5%;

[0056] 1,2-Propanediol: 69%.

Embodiment 2

[0058] The embodiment of the present invention is used for the antirust agent of cold-rolled steel coil after bell type annealing, comprises the composition of following weight ratio:

[0059] Morin: 7%;

[0060] L-malic acid: 7%;

[0061] N-lauryl-β-iminodipropionic acid: 15%;

[0062] Tetradecylamine: 15%;

[0063] Span 80: 10%;

[0064] 1,2-Propanediol: 46%.

Embodiment 3

[0066] The embodiment of the present invention is used for the antirust agent of cold-rolled steel coil after bell type annealing, comprises the composition of following weight ratio:

[0067] Morin: 4%;

[0068] L-malic acid: 6%;

[0069] N-lauryl-β-iminodipropionic acid: 12%;

[0070] Tetradecylamine: 13%;

[0071] Span 80: 7%;

[0072] 1,2-Propanediol: 58%.

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Abstract

The invention provides an antirust agent for cold-rolled steel coils after hood type annealing and an application method for the antirust agent. The antirust agent comprises the following ingredientsof, in percentage by weight, 3-7% of flavonoids compounds, 3-7% of malic acid, 10-15% of acyl substituted for creatine, 10-15% of organic alkyl amine, 5-10% of nonionic surfactant and 46-69% of propylene glycol. By means of the antirust agent provided by the invention, the advantages of a water-soluble antirust agent and antirust grease are organically combined, the defects of the water-soluble antirust agent and the antirust grease are overcome, the antirust agent is low in cost, good in environmental protection property and quite suitable for rust protection of the cold-rolled steel coils after the hood type annealing, the purpose of prolonging the corrosion resistance period of the cold-rolled steel coils after the hood type annealing remarkably is achieved, and the antirust agent for the cold-rolled steel coils after the hood type annealing and the application method for the antirust agent have quite high practical value.

Description

technical field [0001] The invention belongs to the field of antirust agents, in particular to an antirust agent for cold-rolled steel coils after bell annealing and an application method thereof. Background technique [0002] Bell annealing is an important process in the manufacturing process of cold-rolled products. It has two main functions: one is to reduce the internal stress of the steel plate through recrystallization to adjust the mechanical properties of the product. The second is to thoroughly remove the oil and oxides remaining on the surface of the steel plate through a high-temperature reducing atmosphere to improve the cleanliness. Different from the compact and efficient continuous annealing, limited by the process conditions, the cold-rolled steel coil needs to be cooled slowly in the furnace after bell-type annealing, and then taken out and transferred to the warehouse for a period of time before entering the next process. Therefore, there is an interval be...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F11/02
CPCC23F11/02
Inventor 黄菲黄先球郎丰军李江文
Owner 武汉钢铁有限公司
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