Steel bar anti-rust treating liquid and treating method

A technology of anti-rust treatment and reinforcement, applied in the direction of metal material coating process, etc., can solve the problems of mechanical properties such as bearing capacity and durability of reinforced concrete components, corrosion of steel bars, etc., to achieve good economy, beautiful appearance of steel bars, delaying The effect of surface rust

Inactive Publication Date: 2010-03-03
WUKUN STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art that the hot-rolled ribbed steel bar is seriously corroded due to water cooling and cooling, which affects the mechanical properties of reinforced concrete members such as bearing capacity and durability, a cheap anti-rust treatment solution for steel bars with good anti-rust effect is invented. , to delay the surface corrosion of ordinary hot-rolled ribbed steel bars in the atmospheric environment, and to ensure the mechanical properties of reinforced concrete components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A. Prepare materials according to the following formula:

[0029] phosphoric acid 1 liter

[0030] Aluminum hydroxide 50g

[0031] Zinc oxide 5 g

[0032] Chromium oxide 5 grams;

[0033] B, above-mentioned raw material is prepared according to the following method:

[0034] In 1 liter of industrial-grade phosphoric acid, add 50 grams of aluminum hydroxide, 5 grams of zinc oxide, and 5 grams of chromium oxide in sequence, and heat up to 250 ° C, so that all the fixed materials added are dissolved in phosphoric acid, and then cooled to room temperature, press The volume ratio is 1:10, after diluting with water, the steel bar antirust treatment solution is obtained;

[0035] C. Immerse the hot-rolled ribbed steel bar with a surface temperature of 150°C into the steel bar anti-rust treatment solution obtained in step B for 1 to 5 seconds, make it completely soaked, and then keep it dry for more than 60 minutes at a temperature of 250°C, that is, on the surface of the s...

Embodiment 2

[0037] A. Prepare materials according to the following formula:

[0038] phosphoric acid 1 liter

[0039] Aluminum hydroxide 100g

[0040] Zinc oxide 3 grams

[0041] 3 grams of chromium oxide;

[0042] B, above-mentioned raw material is prepared according to the following method:

[0043] In 1 liter of industrial-grade phosphoric acid, add 100 grams of aluminum hydroxide, 3 grams of zinc oxide, and 3 grams of chromium oxide in sequence, and heat up to 300 ° C, so that all the fixed materials added are dissolved in phosphoric acid, and then cooled to room temperature, press The volume ratio is 1:20, after adding water to dilute, the steel bar anti-rust treatment solution is obtained;

[0044] C. Spray the steel bar anti-rust treatment solution obtained in step B on the hot-rolled ribbed steel bar with a surface temperature of 500°C for 1 to 5 seconds to make it completely soaked, and then use the residual heat of the steel bar to let the anti-rust treatment solution dry by...

Embodiment 3

[0046] A. Prepare materials according to the following formula:

[0047] phosphoric acid 1 liter

[0048] Aluminum hydroxide 80g

[0049] Zinc oxide 4 grams

[0050] Nickel oxide 2 grams

[0051] Manganese oxide 3 grams;

[0052] B, above-mentioned raw material is prepared according to the following method:

[0053]In 1 liter of industrial-grade phosphoric acid, add 80 grams of aluminum hydroxide, 4 grams of zinc oxide, 2 grams of nickel oxide, and 3 grams of manganese oxide in sequence, and heat up to 280 ° C to make all the added fixing materials dissolve in phosphoric acid. Cool to room temperature, add water to dilute according to the volume ratio of 1:15, and obtain the antirust treatment solution for steel bars;

[0054] C. Immerse the hot-rolled ribbed steel bar with a surface temperature of 300°C into the steel bar anti-rust treatment solution obtained in step B for 1-5 seconds, make it completely soaked, and then keep it dry for 60 minutes at a temperature of 250...

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PUM

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Abstract

The invention provides a steel bar anti-rust treating liquid and a treating method, wherein the steel bar anti-rust treating liquid is prepared by the following steps of: adding 50 to 100g of aluminium hydroxide, 3 to 5g of zinc oxide, 3 to 5g of nickel oxide or/and chromic oxide or/and manganese oxide in every 1L of phosphoric acid, raising temperature, heating the mixed solution to 250 to 300 DEG C, leading fixed raw materials to be mixed and dissolved in phosphoric acid, cooling to room temperature, adding water for dilution according to volume ratio of 1:10 to 20 and obtaining the steel bar anti-rust treating liquid without toxicity and odor and invalid period. The invention has convenient use and good anti-rust effect, also is economical, delays the phenomenon that the surface of thehot rolled ribbed steel bar is rusted under the atmosphere to a greater extent, namely can not be rusted by wind-blowing, raining and sun-drying for more than two months under the atmosphere, does nothave influence to the mechanical performance and welding performance of the steel bar, and fundamentally solves the problems that the existing hot rolled ribbed steel bar is rusted seriously so as tohave influence on the bearing capability and durability and the like of the steel bar concrete members.

Description

technical field [0001] The invention relates to an antirust treatment liquid, in particular to a treatment liquid and a treatment method capable of delaying the corrosion of hot-rolled ribbed steel bars in an atmospheric environment, and belongs to the technical field of steel surface treatment. Background technique [0002] The steel bars used in construction are placed in the open air environment for a long time, and red rust spots will inevitably appear. As we all know, once the steel bar corrodes, it will affect the mechanical properties of the steel bar, affect the bonding force between the steel bar and concrete and the bearing capacity and durability of the concrete member. For a long time, the influence of corroded steel bars on concrete members has been paid attention to by engineering circles and steel bar manufacturers. Corrosion-resistant steel bars coated with metal and organic coatings have been produced abroad. This type of steel bar has good corrosion resista...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/07
Inventor 李江华苏宁
Owner WUKUN STEEL
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