阅读说明：本技术 一种耐腐蚀螺纹钢及其制备方法 (Corrosion-resistant deformed steel bar and preparation method thereof ) 是由 周新平 于 2020-06-12 设计创作，主要内容包括：本发明涉及螺纹钢冶炼领域,提供一种耐腐蚀螺纹钢及其制备方法,用于解决螺纹钢的腐蚀问题。本发明提供的一种耐腐蚀螺纹钢的制备方法,将螺纹钢在100~200℃下于缓蚀淬火剂中淬火处理1~2s；所述缓蚀淬火剂包括：羟甲基纤维素钠0.05~0.2质量份,苯甲酸钠0.1~1质量份,三乙醇胺0.1~1质量份,碳酸钠2~4质量份,氢氧化钠0.5~1质量份,硅酸钠5~7质量份,有机硼锆交联剂0.02~0.05质量份,木质素磺酸盐0.2~0.5质量份,羟丙基瓜胶0.1~0.3质量份,水70~90质量份。灵活的调节了淬火剂的粘度,提高螺纹钢的耐腐蚀性能。(The invention relates to the field of deformed steel bar smelting, and provides corrosion-resistant deformed steel bar and a preparation method thereof, which are used for solving the corrosion problem of the deformed steel bar. The preparation method of the corrosion-resistant deformed steel bar provided by the invention comprises the following steps of quenching the deformed steel bar in a corrosion inhibition quenching agent for 1-2 s at the temperature of 100-200 ℃; the corrosion inhibition quenching agent comprises: 0.05-0.2 part by mass of sodium carboxymethylcellulose, 0.1-1 part by mass of sodium benzoate, 0.1-1 part by mass of triethanolamine, 2-4 parts by mass of sodium carbonate, 0.5-1 part by mass of sodium hydroxide, 5-7 parts by mass of sodium silicate, 0.02-0.05 part by mass of an organic boron-zirconium cross-linking agent, 0.2-0.5 part by mass of lignosulfonate, 0.1-0.3 part by mass of hydroxypropyl guar gum and 70-90 parts by mass of water. The viscosity of the quenching agent is flexibly adjusted, and the corrosion resistance of the deformed steel bar is improved.)

1. The preparation method of the corrosion-resistant deformed steel bar is characterized in that the deformed steel bar is quenched in a corrosion-inhibiting quenching agent for 1-2 s at the temperature of 100-200 ℃;

the corrosion inhibition quenching agent comprises: 0.05-0.2 part by mass of sodium carboxymethylcellulose, 0.1-1 part by mass of sodium benzoate, 0.1-1 part by mass of triethanolamine, 2-4 parts by mass of sodium carbonate, 0.5-1 part by mass of sodium hydroxide, 5-7 parts by mass of sodium silicate, 0.02-0.05 part by mass of an organic boron-zirconium cross-linking agent, 0.2-0.5 part by mass of lignosulfonate, 0.1-0.3 part by mass of hydroxypropyl guar gum and 70-90 parts by mass of water.

2. The method of claim 1, wherein the corrosion-inhibiting quenching agent comprises: 0.1-0.2 part by mass of sodium carboxymethylcellulose, 0.2-1 part by mass of sodium benzoate, 0.3-1 part by mass of triethanolamine, 3-4 parts by mass of sodium carbonate, 0.8-1 part by mass of sodium hydroxide, 6-7 parts by mass of sodium silicate, 0.03-0.05 part by mass of organic boron-zirconium cross-linking agent, 0.35-0.5 part by mass of lignosulfonate, 0.15-0.3 part by mass of hydroxypropyl guar gum and 88-90 parts by mass of water.

3. The method for preparing corrosion-resistant deformed steel bar according to claim 2, wherein the corrosion-inhibiting quenching agent comprises: 0.1 part by mass of sodium carboxymethylcellulose, 0.2 part by mass of sodium benzoate, 0.3 part by mass of triethanolamine, 3 parts by mass of sodium carbonate, 0.8 part by mass of sodium hydroxide, 6 parts by mass of sodium silicate, 0.03 part by mass of an organic boron zirconium crosslinking agent, 0.35 part by mass of lignosulfonate, 0.15 part by mass of hydroxypropyl guar gum and 88 parts by mass of water.

4. The method for preparing corrosion-resistant deformed steel bar according to claim 1, wherein the organoboron-zirconium cross-linking agent is prepared by the following steps:

preparing zirconium oxychloride, water and isopropanol into a mixed solution containing zirconium oxychloride, adding ammonia water to adjust the solution to be alkaline, and reacting for 2-3 hours;

slowly dropwise adding an organic mixture containing polyhydric alcohol and alpha-hydroxypropionic acid, and reacting for 1-2 h after dropwise adding is finished;

adding a borax solution, reacting for 2-4 hours, carrying out reduced pressure distillation, cleaning a product with acetone, and evaporating to remove the acetone to obtain an organic boron-zirconium cross-linking agent;

the molar ratio of zirconium to boron is 1: 3-4, the concentration of zirconium oxychloride in the mixed solution containing zirconium oxychloride is 10-20%, the mass ratio of water to isopropanol in the zirconium oxychloride solution is 1: 1-3, the molar ratio of polyhydric alcohol to zirconium is 2-3: 1, and the molar ratio of alpha-hydroxypropionic acid to zirconium is 2-3: 1.

5. The method of claim 4, wherein the molar ratio of zirconium to boron is 1: 3.5-4, the concentration of zirconium oxychloride in the mixed solution containing zirconium oxychloride is 16-20%, the mass ratio of water to isopropanol in the mixed solution containing zirconium oxychloride is 1: 1.6-3, the molar ratio of polyol to zirconium is 2.5-3: 1, and the molar ratio of alpha-hydroxypropionic acid to zirconium is 2.4-3: 1.

6. The method according to claim 5, wherein the molar ratio of zirconium to boron is 1:3.5, the concentration of zirconium oxychloride in the mixed solution containing zirconium oxychloride is 16%, the mass ratio of water to isopropanol in the mixed solution containing zirconium oxychloride is 1:1.6, the molar ratio of polyol to zirconium is 2.5:1, and the molar ratio of α -hydroxypropionic acid to zirconium is 2.4: 1.

7. The method for preparing corrosion-resistant deformed steel bar according to claim 4, wherein the reaction temperature is controlled to be 55-60 ℃ in the process of adding the ammonia water to adjust the solution to be alkaline.

8. The method for preparing corrosion-resistant deformed steel bar according to claim 4, wherein the organic mixture further comprises diglycolamine, and the molar ratio of the diglycolamine to zirconium is 0.3-0.5: 1.

9. The method for preparing corrosion-resistant deformed steel bar according to claim 1, wherein the corrosion-inhibiting quenching agent is prepared by the following steps:

mixing and fully dissolving sodium carboxymethylcellulose, sodium benzoate, triethanolamine, sodium carbonate, sodium hydroxide, sodium silicate and water to obtain an intermediate reagent;

adding an organic boron-zirconium cross-linking agent, lignosulfonate and hydroxypropyl guar gum into the intermediate reagent, and fully dissolving to obtain the corrosion inhibition quenching agent.

10. A corrosion-resistant deformed steel bar produced by the production method according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of deformed steel bar smelting, in particular to corrosion-resistant deformed steel bar and a preparation method thereof.

Background

The deformed steel bar is an important steel material and has wide application in industries such as buildings and the like. It is susceptible to corrosion and rust in the surrounding media such as carbon dioxide, oxygen, water, acid, etc. during storage, transportation and use. The corrosion not only causes the waste of steel and influences the appearance of the deformed steel bar, but also reduces the strength of the steel bar and the binding force between the steel bar and the concrete, and causes the potential safety hazard of production and life. The method has the advantages that effective measures are taken to slow down the corrosion of the deformed steel bar, the corrosion inhibitor is added, the method is easy to operate, and the method is widely applied due to small consumption, low cost, wide material selection and high corrosion inhibition efficiency.

CN201310142958.X discloses a compound corrosion-inhibiting quenching agent, which is prepared by mixing, by weight, 0-1 part of sodium carboxymethylcellulose, 0-1 part of sodium polyacrylate, 0.1-1 part of sodium benzoate, 0.1-2 parts of triethanolamine, 0-0.1 part of sodium molybdate, 0-5 parts of sodium hydroxide, 0-10 parts of sodium carbonate, 5-15 parts of water glass and 70-90 parts of water. The corrosion of the deformed steel bar in the atmosphere can be reduced, but the effect of the corrosion-inhibiting quenching agent on reducing the corrosion of the deformed steel bar is still to be improved.

Disclosure of Invention

The invention provides corrosion-resistant deformed steel bar and a preparation method thereof, and solves the technical problem of corrosion of the deformed steel bar.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a preparation method of corrosion-resistant deformed steel bar comprises the steps of quenching deformed steel bar in a corrosion inhibition quenching agent for 1-2 s at the temperature of 100-200 ℃;

the corrosion inhibition quenching agent comprises: 0.05-0.2 part by mass of sodium carboxymethylcellulose, 0.1-1 part by mass of sodium benzoate, 0.1-1 part by mass of triethanolamine, 2-4 parts by mass of sodium carbonate, 0.5-1 part by mass of sodium hydroxide, 5-7 parts by mass of sodium silicate, 0.02-0.05 part by mass of an organic boron-zirconium cross-linking agent, 0.2-0.5 part by mass of lignosulfonate, 0.1-0.3 part by mass of hydroxypropyl guar gum and 70-90 parts by mass of water.

The viscosity of the quenching agent can be improved by compounding the lignin ammonia sulfonate, the organic boron zirconium cross-linking agent, the hydroxymethyl guar gum and the hydroxymethyl cellulose sodium, so that the corrosion resistance effect of the deformed steel bar is improved.

The corrosion resistance effect of the deformed steel bar is obviously improved.

Detailed Description

The following examples are further illustrative of the present invention and are not intended to be limiting thereof.