Preparation method of rust prevention treatment solution for steel fasteners

Abstract

The invention discloses a preparation method of a rust prevention treatment solution for steel fasteners, which comprises the following steps: 1) taking a proper amount of water, sequentially adding 6-8% of sodium silicate, 5-7% of sodium metasilicate, 3-5% of sodium bicarbonate and 1-3% of ammonium citrate, and stirring for 8-12 minutes to obtain a solution A; 2) taking 12-14% of ethanol, sequentially adding 0.8-1.2% of diethylamine, 0.3-0.5% of octadecylamine, 0.05-0.07% of fatty alcohol polyethenoxy ether, 0.03-0.05% of Tween-80, 0.2-0.4% of hydroquinone, 0.15-0.35% of organic silicon wetting agent and 0.6-0.8% of lauryl alcohol ester, and stirring for 8-12 minutes to obtain a solution B; and 3) mixing the solution A and solution B, stirring for 14-16 minutes, adding the rest of water, and regulating the pH value to 2.0-3.0, wherein the weight percents are the contents in the final composition.

Description

technical field [0001] The invention relates to the technical field of surface treatment, in particular to a method for preparing an antirust treatment liquid for iron and steel fasteners. Background technique [0002] Anti-rust oil is composed of oil-soluble corrosion inhibitor, base oil and auxiliary additives. According to performance and use, it can be divided into fingerprint removal type antirust oil, water dilution type antirust oil, solvent dilution type antirust oil, antirust and lubrication dual-purpose oil, sealed antirust oil, replacement type antirust oil, thin layer oil , antirust grease and vapor phase antirust oil, etc. Corrosion inhibitors commonly used in antirust oils are alkaline earth metal salts of fatty acids or naphthenic acids, lead naphthenate, zinc naphthenate, sodium petroleum sulfonate, barium petroleum sulfonate, calcium petroleum sulfonate, tallow trioleate Amine, rosin amine, sorbitan monooleate, polyethylene glycol dioleate, polyethylene gl...

AI Technical Summary

Problems solved by technology

[0004] At present, due to environmental restrictions, many oil-soluble antirust agents commonly used in the past have been restricted in use, such as barium sulfonate, which has a better antirust effect on ferrous metals, etc. Barium ions are heavy metal ions, and long-term discharge in the environment will cause heavy metals to accumulate. vicious events, so countries all over the world are promoting new additives that do not contain barium or even sulfonate

[0005] The current anti-rust oils in our country basically use gasoline, kerosene or machine oil as solvents, and they are all products of oil fractionation. At present, because the aromatic hydrocarbons contained in oil cannot be extracted, gasoline, kerosene and machine oil All oils contain aromatic hydrocarbons. Using gasoline and kerosene as solvent oil has a low flash point and is easy to catch fire. Second, it pollutes the environment and is harmful to human health.