No-clean barium-removing anti-rust oil for shaft teeth and preparation method thereof

Abstract

The invention discloses no-clean barium-removing anti-rust oil for shaft teeth and a preparation method thereof. The no-clean barium-removing anti-rust oil comprises the following components by weight: 0.5-15% of a barium-removing anti-rust agent; 0.5-5% of a dehydrating agent; 0.5-5% of a salt spray performance improver; 20 to 30 percent of base oil; the preparation method comprises the following steps: adding the barium-removing antirust agent and the salt spray performance improver into the base oil, heating and stirring until the barium-removing antirust agent and the salt spray performance improver are completely dissolved, then adding the dehydrating agent, and after the dehydrating agent is completely dissolved, adding the solvent oil and uniformly stirring. The rust-proof oil has the beneficial effects that the base oil is used as a carrier, the sulfonate, the carboxylic acid rust inhibitor and the oxidized ester wax play a role in improving polarity, forming a film on the surface of a workpiece and dehydrating the alcohol ether, the produced rust-proof oil does not contain barium substances, meets the international standard, is thin in oil film, quick in volatilization and high in flash point, can realize no-clean, and has a good rust-proof effect on the surface of the workpiece. The appearance of shaft tooth workpieces is not affected, the cleanliness requirement is met, the antirust period is long, the field safety use requirement is met, and a main engine plant can be directly assembled without cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of chemical industry, and in particular to a cleaning-free barium-removing anti-rust oil for shaft gears and a preparation method thereof. Background Art

[0002] In the process of industrial production, the anti-rust and lubrication of metal materials is very important. Traditional anti-rust liquid usually contains heavy metals such as barium, but barium is a banned substance internationally, which will have a serious impact on the environment during use. If the anti-rust oil produced has a thick oil film and evaporates slowly, it will affect the appearance and cleanliness requirements of the shaft gear. If the oil film is thin, evaporates quickly, and has a low flash point, there will be safety hazards and poor anti-rust and anti-corrosion effects. Barium-free anti-rust oil is an environmentally friendly anti-rust lubricant that can effectively replace traditional anti-rust liquid containing barium heavy metals.

[0003] At present, in order to reduce production costs and improve production efficiency, the main engine manufacturers require that shaft gear workpieces can be free of cleaning, meet the cleanliness requirements, and can be directly assembled. Therefore, a shaft gear free of cleaning barium anti-rust oil and a preparation method thereof are proposed. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a cleaning-free barium-removing anti-rust oil for shaft gears and a preparation method thereof.

[0005] The technical solution is as follows: a barium-free rust-proof oil for shaft gears that does not require cleaning, which mainly includes the following weight components:

[0006] Barium rust inhibitor: 0.5-15%;

[0007] Dehydrating agent: 0.5-5%;

[0008] Salt spray performance improver: 0.5-5%;

[0009] Base oil: 20-30%;

[0010] Solvent oil: balance.

[0011] Preferably, the barium-removing rust inhibitor includes sulfonate and carboxylic acid rust inhibitors.

[0012] Preferably: the sulfonate is selected from at least one of calcium sulfonate and magnesium sulfonate;

[0013] The carboxylic acid rust inhibitor is selected from at least one of olefin succinic acid and zinc cyclohexanecarboxylate.

[0014] Preferably, the dehydrating agent includes alcohols and ethers.

[0015] Preferably: the alcohol is at least one of polyols, monoalcohols and fatty alcohols;

[0016] The ethers are selected from at least one of monoethers and mixed ethers.

[0017] Preferably, the salt spray performance improver includes oxidized esters and oxidized waxes.

[0018] Preferably: the oxidized ester is at least one of oxidized petroleum esters;

[0019] The oxidized wax is selected from at least one of paraffin wax, ozokerite wax and synthetic wax.

[0020] Preferably, the solvent oil is at least one of paraffin, cycloparaffin and aromatic hydrocarbon.

[0021] Preferably, the mineral oil is at least one of hydrogenated refined oils.

[0022] A method for preparing a shaft gear cleaning-free barium-removing anti-rust oil comprises the following steps:

[0023] S1: Place calcium sulfonate, magnesium sulfonate, carboxylic acid rust inhibitor, oxidized ester and oxidized wax in hydrorefined oil, and heat and stir until completely dissolved;

[0024] S2: After complete dissolution, add alcohols and ethers to fully dissolve;

[0025] S3: adding alkanes, cycloalkanes and aromatic hydrocarbons, stirring evenly, and obtaining the cleaning-free barium-removing anti-rust oil for the shaft gear.

[0026] Compared with the prior art, the invention has the following beneficial effects: using base oil as a carrier, sulfonate, carboxylic acid rust inhibitor, and oxidized ester wax to increase polarity, forming a film on the workpiece surface, and alcohol ether playing a dehydrating role, the produced rust-proof oil does not contain barium substances, meets international standards, and reduces environmental pollution, the rust-proof oil has a thin oil film, evaporates quickly, has a high flash point, can be free of cleaning, does not affect the appearance of shaft gear workpieces, meets its cleanliness requirements, has a long anti-rust cycle, meets the requirements for safe use on site, and the main engine factory can directly assemble without cleaning. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the embodiments.

[0028] Example 1

[0029] A kind of cleaning-free barium-removing anti-rust oil for shaft gear, the components and proportions of which are shown in the following Table 1:

[0030] Table 1 Components of Example 1

[0031]

[0032]

[0033] A method for preparing a shaft gear cleaning-free barium-removing anti-rust oil comprises the following steps:

[0034] S1: Place calcium sulfonate, magnesium sulfonate, carboxylic acid rust inhibitor, oxidized ester and oxidized wax in hydrorefined oil, and heat and stir until completely dissolved;

[0035] S2: After complete dissolution, add alcohols and ethers to fully dissolve;

[0036] S3: adding alkanes, cycloalkanes and aromatic hydrocarbons, stirring evenly, and obtaining the cleaning-free barium-removing anti-rust oil for the shaft gear.

[0037] Embodiment 2-8

[0038] Compared with Example 1, the components and proportions of Examples 2-8 are different, but the preparation methods are the same. The components and proportions of Examples 2-8 are shown in Table 2 below:

[0039] Table 2 Components of Example 2

[0040]

[0041] Test example

[0042] In order to test the produced anti-rust oil, salt spray test and wet heat test were carried out respectively.

[0043] Test Example 1 Salt spray test

[0044] Use 400Cw sandpaper to polish the test piece to make it shiny and rust-free, clean it twice with alcohol, blow it dry and put it in a dryer for later use. After the test piece cools to room temperature, immerse it in anti-rust oil for 30 seconds, take it out, place it on a tray at an angle of 45 degrees and let it stand for 24 hours, and then conduct a salt spray test. The evaluation standard is salt spray > 48 hours.

[0045] Test Example 2: Wet Heat Test

[0046] Use 400Cw sandpaper to polish the test piece to make it shiny and rust-free, clean it twice with alcohol, blow it dry and put it in a dryer for later use. After the test piece cools to room temperature, immerse it in anti-rust oil for 30 seconds, take it out, place it on a tray at an angle of 45 degrees and let it stand for 24 hours, and then conduct a wet heat test. The evaluation standard is wet heat > 720 hours.

[0047] The test results of Test Examples 1 and 2 are shown in Table 3 below:

[0048] Table 3 Test results

[0049]

[0050] The inspection results in Table 3 show that the salt spray test of the steel sheets in Examples 1-8 is greater than 48 hours, with small deviations. Therefore, the wet heat comparison is performed using the same shaft workpiece. The comparison results show that Example 8 has the best effect, which is greater than 720 hours.

[0051] By comparing the effects between the above Examples 1-8, it is found that when the dosage of petroleum cyclopentane salt alone is increased, the wet heat test of the workpiece is improved; when the dosage of carboxylic acid rust inhibitor alone is increased, the wet heat of the workpiece is improved; when the dosage of synthetic wax salt alone is increased, the improvement of the wet heat of the workpiece is not obvious; when the dosages of synthetic wax salt and carboxylic acid rust inhibitor are both increased, the wet heat of the workpiece is synergistically improved; when the dosages of synthetic wax salt and petroleum sulfonate are both increased, the wet heat of the workpiece is synergistically improved; when the dosages of petroleum sulfonate and carboxylic acid rust inhibitor are both increased, the wet heat of the workpiece is synergistically improved, but the improvement time is long without adding synthetic wax salt; when petroleum sulfonate, carboxylic acid rust inhibitor and synthetic wax salt are all increased, the wet heat of the workpiece is greatly improved.

[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present invention. Under the guidance of the present invention, ordinary technicians in this field can make various similar expressions without violating the purpose and claims of the present invention, and such changes all fall within the scope of protection of the present invention.

Claims

1. A barium-free rust-proof oil for shaft gears that does not require cleaning, characterized in that: Includes the following weight components: Barium rust inhibitor: 0.5-15%; Dehydrating agent: 0.5-5%; Salt spray performance improver: 0.5-5%; Base oil: 20-30%; Solvent oil: balance.

2. According to claim 1, a cleaning-free barium-removing anti-rust oil for shaft gears, characterized in that: The barium-removing rust inhibitor includes sulfonate and carboxylic acid rust inhibitors.

3. The barium-free rust-proof oil for shaft gears according to claim 2, characterized in that: The sulfonate is selected from at least one of calcium sulfonate and magnesium sulfonate; The carboxylic acid rust inhibitor is selected from at least one of olefin succinic acid and zinc cyclohexanecarboxylate.

4. The cleaning-free barium-removing anti-rust oil for shaft gear according to claim 1, characterized in that: The dehydrating agents include alcohols and ethers.

5. According to claim 4, the cleaning-free barium-removing anti-rust oil for shaft gears is characterized by: The alcohol is selected from at least one of polyols, monoalcohols and fatty alcohols; The ethers are selected from at least one of monoethers and mixed ethers.

6. The barium-free rust-proof oil for shaft gears according to claim 1, characterized in that: The salt spray performance improver includes oxidized esters and oxidized waxes.

7. The barium-free rust-proof oil for shaft gears according to claim 6, characterized in that: The oxidized ester is selected from at least one of oxidized petroleum esters; The oxidized wax is selected from at least one of paraffin wax, ozokerite wax and synthetic wax.

8. The barium-free rust-proof oil for shaft gears according to claim 1, characterized in that: The solvent oil is selected from at least one of paraffin, cycloparaffin and aromatic hydrocarbon.

9. The barium-free rust-proof oil for shaft gears according to claim 1, characterized in that: The mineral oil is selected from at least one of hydrogenated refined oils.

10. A method for preparing a cleaning-free barium-removing anti-rust oil for shaft gears, characterized in that: The following steps are involved: S1: Place calcium sulfonate, magnesium sulfonate, carboxylic acid rust inhibitor, oxidized ester and oxidized wax in hydrorefined oil, and heat and stir until completely dissolved; S2: After complete dissolution, add alcohols and ethers to fully dissolve; S3: adding alkanes, cycloalkanes and aromatic hydrocarbons, stirring evenly, and obtaining the cleaning-free barium-removing anti-rust oil for the shaft gear.

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