阅读说明：本技术 一种长寿命轴承防锈油及其制备方法 (Long-life bearing anti-rust oil and preparation method thereof ) 是由 买楠楠 孙小波 王灿辉 于 2019-09-29 设计创作，主要内容包括：一种长寿命轴承防锈油及其制备方法,防锈油的成分按重量百分比包括：基础油：15～25%；中性磺酸钡：10～15%；烷基苯磺酸钡：2～5%；高碱值磺酸钙：2%～5%；氧化石蜡丁酯：1%～5%；乳化剂：1%～2%；抗氧剂：0.1%～0.5%；余量为溶剂油；基础油由聚α烯烃和加氢精制矿物油组成,其中聚α烯烃的重量百分比为20%～30%；中性磺酸钡的分子量不低于1100,其中磺酸钡含量不低于50%；高碱值磺酸钙的总碱值不低于300。本发明与现有的轴承防锈油相比,体系更加稳定并具有更强的抗氧化性,能够在三年的储存期保持体系稳定使轴承的表面不会干结而出现黄斑等现象,提升了轴承防锈油的寿命,涂抹后形成的油膜较薄,更容易去除更换,能够更好地满足轴承长时间储存的要求。(The invention relates to long-life bearing anti-rust oil and a preparation method thereof, wherein the anti-rust oil comprises, by weight, 15-25% of base oil, 10-15% of neutral barium sulfonate, 2-5% of barium alkyl benzene sulfonate, 2-5% of high-base-number calcium sulfonate, 1-5% of oxidized paraffin butyl ester, 1-2% of emulsifier, 0.1-0.5% of antioxidant and the balance solvent oil, wherein the base oil consists of poly α olefin and hydrofined mineral oil, wherein the weight percentage of the poly α olefin is 20-30%, the molecular weight of the neutral barium sulfonate is not lower than 1100, the content of the barium sulfonate is not lower than 50%, and the total base number of the high-base-number calcium sulfonate is not lower than 300.)

1. The long-life bearing rust preventive oil is characterized in that: the rust preventive oil comprises the following components in percentage by weight: base oil: 15-25%; neutral barium sulfonate: 10-15%; barium alkyl benzene sulfonate: 2-5%; high base number calcium sulfonate: 2% -5%; oxidized paraffin butyl ester: 1% -5%; emulsifier: 1% -2%; antioxidant: 0.1 to 0.5 percent; the balance of solvent oil;

the base oil consists of poly α olefin and hydrofined mineral oil, wherein the weight percentage of the poly α olefin is 20-30%;

the molecular weight of the neutral barium sulfonate is not lower than 1100, wherein the content of the barium sulfonate is not lower than 50%; the total base number of the high-base-number calcium sulfonate is not less than 300.

2. The long-life bearing rust preventive oil as claimed in claim 1, characterized in that: the emulsifier is polyisobutylene succinic anhydride.

3. The long-life bearing rust preventive oil as claimed in claim 1, characterized in that: the antioxidant consists of 2, 6-butyl phenol derivatives and butyl octyl diphenylamine.

4. The long-life bearing rust preventive oil as claimed in claim 1, characterized in that: the solvent oil is dearomatization solvent oil, and the flash point of the solvent oil is 70-80 ℃.

5. The preparation method of the long-life bearing rust preventive oil, as recited in claim 1, is characterized by comprising the steps of:

step 1, adding base oil into a blending kettle, heating to 100-110 ℃, adding neutral barium sulfonate, barium alkyl benzene sulfonate and high-base-number calcium sulfonate into the base oil, stirring the base oil in the adding process, and then stirring the mixed solution in the blending kettle for 1 hour at controlled temperature;

step 2, cooling the mixing kettle to reduce the temperature of the mixed liquid obtained in the step 1 to 80-90 ℃, adding oxidized paraffin butyl ester, an emulsifier and an antioxidant into the mixed liquid, and stirring the mixed liquid in the mixing kettle for 1-2 hours at a controlled temperature;

and 3, cooling the temperature of the mixed solution obtained in the step 2 to room temperature, adding solvent oil into the mixed solution, uniformly stirring, and filtering out impurities by using a filter bag with the aperture of 1-1.5 mu m to obtain a finished antirust oil product, wherein the preparation is finished.

Technical Field

The invention relates to the field of bearing anti-rust oil, in particular to long-life bearing anti-rust oil and a preparation method thereof.

Background

The rust prevention of the bearing is usually realized by adopting a temporary rust prevention packaging method, namely, the bearing is cleaned, after the bearing is dried, the surface of the bearing is dipped and coated with rust prevention oil, and the bearing is put into a non-corrosive polyethylene plastic packaging bag for storage. When the existing bearing anti-rust oil is adopted by the method, the bearing can be ensured not to be rusted within two years, but the existing bearing anti-rust oil belongs to lubricating oil type bearing anti-rust oil, after the storage period of two years, the oil film of the bearing anti-rust oil on the surface of the bearing is dried and becomes yellow spots, the main reason is that the existing bearing anti-rust oil system is not stable enough, the base oil is easy to oxidize and corrosion inhibitor is easy to separate out, the oxidation of the base oil and the separation of the corrosion inhibitor are shown on the surface of the bearing as the dried yellow spots or yellow spots, so the service life of the bearing anti-rust oil reaches the limit when the yellow spots appear, if the bearing needs to be stored for more than two years, namely the service life of the existing bearing anti-rust oil is difficult to reach more than two years; the existing bearing anti-rust oil belongs to lubricating oil type bearing anti-rust oil with a thick oil film, and is not easy to remove when the bearing anti-rust oil is replaced. At present, the storage requirement of the bearing is gradually improved, the storage life requirement is also continuously improved, the service life of the existing bearing anti-rust oil is only two years, so that the bearing needs to be returned to a factory for re-oiling and rust prevention in the storage process, the cost is increased, and the requirement on long-time storage of the bearing is difficult to meet.

Disclosure of Invention

The invention provides long-life bearing anti-rust oil and a preparation method thereof, aiming at solving the problem that the service life of the existing bearing anti-rust oil is short.

The technical scheme adopted by the invention for solving the technical problems is as follows: the long-life bearing rust preventive oil comprises the following components in percentage by weight: base oil: 15-25%; neutral barium sulfonate: 10-15%; barium alkyl benzene sulfonate: 2-5%; high base number calcium sulfonate: 2% -5%; oxidized paraffin butyl ester: 1% -5%; emulsifier: 1% -2%; antioxidant: 0.1 to 0.5 percent; the balance of solvent oil;

the base oil consists of poly α olefin and hydrofined mineral oil, wherein the weight percentage of the poly α olefin is 20-30%;

the molecular weight of the neutral barium sulfonate is not lower than 1100, wherein the content of the barium sulfonate is not lower than 50%; the total base number of the high-base-number calcium sulfonate is not less than 300.

Preferably, the emulsifier is polyisobutylene succinic anhydride.

Preferably, the antioxidant consists of 2, 6-butyl phenol derivative and butyl octyl diphenylamine.

Preferably, the solvent oil is dearomatized solvent oil, and the flash point of the solvent oil is 70-80 ℃.

A preparation method of long-life bearing rust preventive oil comprises the following steps:

step 1, adding base oil into a blending kettle, heating to 100-110 ℃, adding neutral barium sulfonate, barium alkyl benzene sulfonate and high-base-number calcium sulfonate into the base oil, stirring the base oil in the adding process, and stirring the mixed solution in the blending kettle for 1-1.5 hours at controlled temperature;

step 2, cooling the mixing kettle to reduce the temperature of the mixed liquid obtained in the step 1 to 80-90 ℃, adding oxidized paraffin butyl ester, an emulsifier and an antioxidant into the mixed liquid, and stirring the mixed liquid in the mixing kettle for 1-2 hours at a controlled temperature;

and 3, cooling the temperature of the mixed solution obtained in the step 2 to room temperature, adding solvent oil into the mixed solution, uniformly stirring, and filtering out impurities by using a filter bag with the aperture of 1-1.5 mu m to obtain a finished antirust oil product, wherein the preparation is finished.

According to the invention, three components of neutral barium sulfonate, barium alkyl benzene sulfonate and high-base-number calcium sulfonate are matched to be used as an antirust additive, and the action mechanism of the antirust additive is that the barium sulfonate and the calcium sulfonate can be matched to improve the salt spray resistance of antirust oil when used together; when the neutral barium sulfonate and the alkyl barium benzenesulfonate are used together, the neutral barium sulfonate and the alkyl barium benzenesulfonate can complement each other on the metal surface of the bearing to form a compact adsorption layer, so that the anti-overlapping and anti-moisture properties of the anti-rust oil are improved; in order to ensure the overall effect of the three components in the process of mixing, neutral barium sulfonate with the molecular weight not less than 1100 and the content of barium sulfonate not less than 50 percent and high-base-number calcium sulfonate with the total base number not less than 300 are selected, so that the three components can be fully matched to play the characteristics of the components, and the effective rust prevention of the rust preventive oil on the bearing is ensured.

In the invention, the base oil consists of poly α olefin and hydrorefined mineral oil, wherein the poly α olefin has relatively strong inoxidizability, the hydrorefined mineral oil has relatively strong antirust additive sensitivity, and after the two components are mixed according to the proportion in the invention, the base oil has both improved inoxidizability and good antirust additive sensitivity.

The anti-oxidation performance of the rust-proof oil is improved by further adding an antioxidant into the rust-proof oil, wherein the antioxidant can be a mixture of a 2, 6-butylphenol derivative and butyloctyldiphenylamine, the 2, 6-butylphenol derivative and the butyloctyldiphenylamine belong to phenol antioxidants and amine antioxidants, and the rotating oxygen bomb oxidation time for adding the 2, 6-butylphenol derivative and the butyloctyldiphenylamine in the rust-proof oil is 1.8 times that for independently adding the 2, 6-butylphenol derivative and 1.4 times that for independently adding the butyloctyldiphenylamine.

According to the technical scheme, the invention has the beneficial effects that:

the long-life bearing anti-rust oil provided by the invention adopts the solvent type anti-rust oil to replace the existing lubricating oil type anti-rust oil, compared with the existing bearing anti-rust oil, the system is more stable and has stronger oxidation resistance, no precipitation and layering phenomenon is caused after indoor storage for half a year, the anti-rust performance is more outstanding, after the anti-rust oil is smeared on the inner surface of a bearing, the component change phenomena such as oxidation and the like can not occur in the storage period of three years, namely the system can be kept stable in the storage period of three years, so that the surface of the bearing can not be dried to generate yellow spots and the like, the service life of the existing bearing anti-rust oil for two years is prolonged to three years, and the frequency of replacing the anti-rust oil in the long; and the solvent type anti-rust oil has lower viscosity, can quickly permeate gaps and combined parts on the surface of the bearing after being coated, forms a thin oil film on the surface of the bearing after the solvent is volatilized, has no greasy feeling when being touched by hands, can be removed by using a conventional organic solvent, greatly simplifies the cleaning and replacing processes of the bearing anti-rust oil compared with the existing lubricating oil type anti-rust oil, and can better meet the requirement of long-time storage of the bearing.

Detailed Description

The long-life bearing rust preventive oil comprises the following components in percentage by weight: base oil: 15-25%; neutral barium sulfonate: 10-15%; barium alkyl benzene sulfonate: 2-5%; high base number calcium sulfonate: 2% -5%; oxidized paraffin butyl ester: 1% -5%; emulsifier: 1% -2%; antioxidant: 0.1 to 0.5 percent; the balance being solvent oil.

The base oil consists of poly α olefin and hydrorefined mineral oil, wherein the weight percentage of the poly α olefin is 20-30%, and the poly α olefin with stronger inoxidizability and the hydrorefined mineral oil with stronger antirust additive sensitivity are mixed in proportion, so that the base oil not only improves the inoxidizability, but also obtains good antirust additive sensitivity.

The molecular weight of the neutral barium sulfonate is not lower than 1100, wherein the content of the barium sulfonate is not lower than 50%; the total base number of the high-base-number calcium sulfonate is not less than 300, so that the neutral barium sulfonate, the alkyl barium benzenesulfonate and the high-base-number calcium sulfonate can be fully matched to play the characteristics of the neutral barium sulfonate, the alkyl barium benzenesulfonate and the high-base-number calcium sulfonate as antirust additives.

The emulsifier is polyisobutylene succinic anhydride, the antioxidant consists of 2, 6-butyl phenol derivatives and butyl octyl diphenylamine, the solvent oil is dearomatized solvent oil, and the flash point of the solvent oil is 70-80 ℃.

A preparation method of long-life bearing rust preventive oil comprises the following steps:

step 1, adding base oil into a blending kettle, heating to 100-110 ℃, adding neutral barium sulfonate, barium alkyl benzene sulfonate and high-base-number calcium sulfonate into the base oil, stirring the base oil in the adding process, and then stirring the mixed solution in the blending kettle for 1 hour at controlled temperature;

step 2, cooling the mixing kettle to reduce the temperature of the mixed liquid obtained in the step 1 to 80-90 ℃, adding oxidized paraffin butyl ester, an emulsifier and an antioxidant into the mixed liquid, and stirring the mixed liquid in the mixing kettle for 1-2 hours at a controlled temperature;

and 3, cooling the temperature of the mixed solution obtained in the step 2 to room temperature, adding solvent oil into the mixed solution, uniformly stirring, and filtering out impurities by using a filter bag with the aperture of 1-1.5 mu m to obtain a finished antirust oil product, wherein the preparation is finished.