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Water-based rust preventer and preparation method and application thereof

A water-based anti-rust agent and rolling line technology, which is applied in the field of steel surface treatment, can solve the problems that cannot fully meet the anti-rust requirements, need several hours or even a day, and have no high-temperature anti-rust methods to achieve good economy and use The method is simple and has the effect of delaying surface corrosion

Active Publication Date: 2014-10-22
WUKUN STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The normal temperature anti-rust agent is mainly used to process the finished steel at normal temperature. The steel bars need to be cleaned, degreased, soaked, passivated, and dried. There are still many occasions that require high-temperature anti-rust technology to achieve the purpose of anti-corrosion, that is, to directly treat the surface of high-temperature steel to improve the corrosion resistance of steel bars at room temperature
At present, high temperature antirust is difficult, therefore, there is no effective high temperature antirust method

Method used

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  • Water-based rust preventer and preparation method and application thereof
  • Water-based rust preventer and preparation method and application thereof

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preparation example Construction

[0025] The preparation method of water-based antirust agent of the present invention comprises following concrete steps:

[0026] (1) Determine the dosage of each component;

[0027] (2) Add gelatin to water and stir until it dissolves completely. The mass-to-volume ratio of gelatin to water (g:L) is 1:8-15; add alum to water and stir until it is completely dissolved. L) is 1:20~40; add sodium dodecylsulfonate into water and stir well until it dissolves completely, the mass-volume ratio of solid to liquid (g:L) is 1:6~15;

[0028] (3) Mix the above three solutions with water-soluble silicone oil evenly;

[0029] (4) Add water to constant volume to obtain the water-based antirust agent.

[0030] Gelatin is difficult to dissolve in water at normal temperature and pressure. The dissolution method adopted in this technical solution is to first soak gelatin at room temperature for 10-30 minutes, and then fully stir in a constant temperature water bath at 65-70°C until it is compl...

Embodiment 1

[0038] The formula of water-based antirust agent is: 30g / L gelatin, 3g / L alum, 20g / L sodium dodecylsulfonate, 20g / L water-soluble silicone oil, and the balance is water.

[0039] First soak 30g of gelatin at room temperature for 10min, add it into 250mL of water, and stir in a constant temperature water bath at 65°C until completely dissolved. Add 3g of alum into 120mL of water and stir until it is completely dissolved, add 20g of sodium dodecylsulfonate into 200mL of water and stir until it is completely dissolved. Thoroughly mix the above three solutions with 20 g of water-soluble silicone oil, add water to make the volume to 1 L, and obtain the water-based antirust agent.

[0040] The hot-rolled ribbed steel bar with a surface temperature of 200 ° C is completely immersed in the anti-rust agent for 10 seconds. After the anti-rust agent dries, a bright anti-rust film is formed on the surface of the steel bar.

Embodiment 2

[0042] The formula of water-based antirust agent is: 30g / L gelatin, 3g / L alum, 20g / L sodium dodecylsulfonate, 20g / L water-soluble silicone oil, and the balance is water.

[0043] Soak 30g of gelatin at room temperature for 20min, add 300mL of water, and stir in a constant temperature water bath at 65°C until completely dissolved; add 3g of alum in 100mL of water and stir until completely dissolved; add 20g of sodium dodecylsulfonate into 300mL of water Stir well until completely dissolved. Thoroughly mix the above three solutions with 20 g of water-soluble silicone oil, add water to make the volume to 1 L, and obtain the water-based antirust agent.

[0044] The hot-rolled ribbed steel bar with a surface temperature of 200 ° C is completely immersed in the anti-rust agent for 10 seconds. After the anti-rust agent dries, a bright anti-rust film is formed on the surface of the steel bar.

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Abstract

The invention discloses a water-based rust preventer and a preparation method and application thereof. The water-based rust preventer disclosed by the invention contains 30-50g / L of gelatin, 3-5g / L of alum, 20-30g / L of sodium dodecyl sulfonate, 20-30g / L of water-soluble silicone oil and the balance of water. The invention further discloses the preparation method of the water-based rust preventer and application of the water-based rust preventer in the rust prevention of hot-rolled ribbed steel bars. The rust preventer disclosed by the invention is convenient in use, good in rust prevention effect and low in cost, the condition that rusting cannot occur in an open-air environment under the conditions of being exposed to the wind, rain and sun can be maintained for 2-3 months, and the mechanical properties and welding performance of steel bars are not affected, so that the problem that the bearing capacity, durability and the like of reinforced concrete members are affected due to the fact that the existing hot-rolled ribbed steel bars severely rust is fundamentally solved.

Description

technical field [0001] The invention belongs to the technical field of steel surface treatment technology, and in particular relates to an environment-friendly high-temperature water-based antirust agent capable of delaying the corrosion of hot-rolled ribbed steel bars in an atmospheric environment, and a preparation method and application thereof. Background technique [0002] As construction steel, hot-rolled ribbed steel has always occupied a large proportion of my country's steel production and plays a vital role in the national economy. In recent years, in order to produce low-cost high-strength steel bars, the main method adopted by major iron and steel enterprises is the water cooling process after final rolling. This process can improve the structure to a certain extent and improve the mechanical properties of steel bars, but there is a big disadvantage in this process, that is, the hot-rolled ribbed steel bars cooled by water are easy to rust during storage and tran...

Claims

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Application Information

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IPC IPC(8): C23F11/173
Inventor 陶俊赵宇张卫强苏宁陈涛孙肖媛郑玲
Owner WUKUN STEEL
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