Phosphorus-free environment-friendly guide rail oil composition and preparation method thereof

Abstract

The invention relates to the technical field of guide rail oil, in particular to a phosphorus-free environment-friendly guide rail oil composition which comprises the following components in percentage by weight: 0.2-0.8% of a composite additive; 0.1-0.3% of an antirust agent; 0.2 to 0.5 percent of an antioxidant; 0.01%-0.1% of a defoaming agent; and the balance of mineral base oil. Compared with the prior art, the non-phosphorus guide rail oil composite additive is characterized in that 1, the non-phosphorus guide rail oil composite additive is prepared from a fatty acid ester oiliness agent mixture, and the components are non-phosphorus; 2, a mercapto-thiadiazole derivative is adopted, so that a mercapto-thiadiazole protective coating is formed on a friction surface, the anti-corrosion and anti-rust effects are achieved, and the components are phosphorus-free; 3, a phenol type antioxidant is adopted as an antioxidant, so that the creeping phenomenon of a machine tool guide rail caused by loss of lubricity and astringent friction surface due to the fact that an oil product generates oxide in the operation process and colloid is adhered to the metal surface is avoided, and the component is non-phosphorus; the prepared guide rail oil is free of phosphorus, phosphorus reduction emission of enterprises is achieved, and the ecological environment of a water body is protected.

Description

Technical Field

[0001] The invention relates to the technical field of guide rail oils, and in particular to a phosphorus-free and environment-friendly guide rail oil composition and a preparation method thereof. Background Art

[0002] Eutrophication of water bodies. From the perspective of the ecosystem, if we want to control blue algae, "phosphorus reduction" is the only way. Continuously reducing phosphorus emissions is an important means of comprehensive water environment management. Realizing "phosphorus reduction" has become a top priority.

[0003] Enterprises can reduce phosphorus in three ways: use environmentally friendly raw materials for production and phosphorus-free oil for equipment maintenance to curb pollution at the source; implement clean production transformation, strictly control production standards to reduce waste and emissions; add self-purification procedures to intercept pollutants while reducing the cost of outsourcing sewage treatment.

[0004] Guide rail oil is widely used in various types of industrial machinery and equipment, involving many industries such as machinery and equipment manufacturing, automation, robots, new energy vehicles, etc. The guide rails of most machines are lubricated by centralized oiling. The lubricating oil used for the guide rails is consumable and cannot be recycled. Most guide rails are exposed to the outside and cannot be recycled and discharged as industrial pollutants. Therefore, in order to control corporate phosphorus emissions, it is necessary to control the phosphorus content of the guide rail oil itself, reduce industrial phosphorus pollution emissions, ensure the continuous recovery of the ecology, and restore the vast blue waves.

[0005] Guide rails are friction motion elements used in machines such as machine tools and extrusion molding machines. Friction vibration is ubiquitous in nature, especially when machine tool guide rails are in low-speed friction or mixed friction, the friction vibration phenomenon (creep) has certain characteristics. The creep generated by machine tool guide rails has a great relationship with lubricants, so lubricants with excellent oiliness and appropriate viscosity are required to maintain thin oil film fluid lubrication or mixed lubrication state in the fluid field. Guide rail lubrication must maintain strong adsorption and tough continuous thin oil film lubrication, so it is necessary to use good refined base oil, add oil additives with excellent lubricity and high oil film strength, or mild extreme pressure agents to make special guide rail oil.

[0006] At present, the base oil of guide rail oil generally uses mineral or synthetic base oil, and the oiliness agent in the additive composition uses a combination of sulfurized cottonseed oil, benzotriazole fatty acid amine salt, and phosphate ester, and the extreme pressure anti-wear agent uses a combination of tricresyl phosphate, phenyl thiophosphate, and sulfurized isobutylene. It can be seen that the additive components in the current guide rail oil components contain phosphorus, so all phosphorus-containing additives in the additives should be replaced with phosphorus-free additives. The newly obtained guide rail oil composition must not only ensure the lubrication characteristics of the guide rail oil, but also ensure that no phosphorus-containing pollutants are generated, thereby protecting the ecological environment of the water body. Summary of the invention

[0007] The purpose of the present invention is to provide a phosphorus-free and environmentally friendly guide rail oil composition and a preparation method thereof. The prepared guide rail oil meets the guide rail lubrication characteristics, and the additive components do not contain phosphorus, allowing enterprises to achieve the purpose of "reducing phosphorus" emissions and protecting the ecological environment of water bodies.

[0008] To achieve the above object, the present invention provides a phosphorus-free and environmentally friendly guide rail oil composition, comprising the following components and weight percentages:

[0009] Composite additive 0.2-0.8%; rust inhibitor 0.1-0.3%; antioxidant 0.2-0.5%; defoamer 0.01-0.1%; the balance is mineral base oil.

[0010] The composite additive is a mixture of fatty acid ester oiliness agent, a mixture of borate extreme pressure agent and a mixture of oleic acid epoxy ester friction reducer.

[0011] Wherein, the rust inhibitor is a mercaptothiadiazole derivative.

[0012] Wherein, the antioxidant is a phenolic antioxidant.

[0013] Wherein, the defoaming agent is a non-silicon antifoaming agent.

[0014] The present invention also includes a method for preparing a phosphorus-free and environmentally friendly guide rail oil composition, comprising the following steps:

[0015] The mineral base oil and the defoamer are blended to obtain a mixture;

[0016] Adding other additive components to the mixture and then blending to prepare a sample;

[0017] After filtering the sample through a high-definition filtration system, sampling is performed;

[0018] Fill the samples that meet the index requirements.

[0019] Among them, in "blending the mineral base oil and the defoaming agent to obtain a mixture", the method also includes: the blending temperature is 45 to 55°C; and the blending time is 0.5 to 1 hour.

[0020] Among them, in "adding other additive components to the mixture and then blending to obtain a sample", the method also includes: the blending temperature is 50 to 60°C; and the blending time is 1 to 3 hours.

[0021] The present invention discloses a phosphorus-free and environment-friendly guide rail oil composition and a preparation method thereof. 1. A mixture of fatty acid ester oiliness agent, a mixture of borate extreme pressure agent, and a mixture of oleic acid epoxy ester friction reducer are optimized in proportion to prepare a phosphorus-free guide rail oil composite additive, which contains no phosphorus and has good stick-slip properties and excellent friction reduction performance. 2. A mercaptothiadiazole derivative is used to form a mercaptothiadiazole protective coating on the friction surface to achieve the effect of corrosion and rust prevention, and the components are phosphorus-free. 3. A phenolic antioxidant is used as an antioxidant, such as 2,6-di-tert-butyl-p-cresol and a mixture of high molecular weight phenol esters, to prevent the oil from generating oxides during operation, and the colloid adheres to the metal surface, causing the friction surface to lose lubricity and become astringent, thereby causing the machine tool guide rail to crawl, and the components are phosphorus-free. The present invention has the following beneficial effects: the prepared guide rail oil component is phosphorus-free, has good stick-slip properties and excellent friction reduction performance, excellent anti-creeping performance, corrosion and rust prevention, and is a phosphorus-free, environmentally friendly, high-performance guide rail oil, allowing enterprises to achieve "phosphorus reduction" emissions and protect the water ecological environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 It is a process flow chart of a method for preparing a phosphorus-free and environment-friendly guide rail oil composition according to a second embodiment of the present invention.

[0024] Figure 2 It is a flow chart of a method for preparing a phosphorus-free and environment-friendly guide rail oil composition according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0025] Embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be construed as limiting the present invention.

[0026] First embodiment:

[0027] A phosphorus-free and environmentally friendly guide rail oil composition, the composition percentages are as follows:

[0028] Compound Additives

[0029] Fatty acid ester mixture: 0.2

[0030] Borate mixture: 0.1

[0031] Oleic acid epoxy ester: 0.05

[0032] Rust inhibitor

[0033] Mercaptothiadiazole derivatives: 0.2

[0034] Antioxidants

[0035] 2,6-di-tert-butyl-p-cresol: 0.2

[0036] High molecular weight phenol ester: 0.1

[0037] Defoaming agent

[0038] Non-silicon antifoaming agent: 0.02

[0039] Mineral base oil

[0040] 32# mineral base oil: remainder

[0041] Preparation method: After the mineral base oil and non-silicon antifoaming agent are blended at 45-50°C for 0.5-1 hour, other additive components are added. After blending at 50-60°C for 2 hours, the viscosity, viscosity index, liquid phase rust and other items are analyzed and tested. The finished product is obtained if it is qualified.

[0042] The performance indicators of the guide rail oil obtained in this embodiment are shown in the following table:

[0043]

[0044] Second embodiment:

[0045] A phosphorus-free and environmentally friendly guide rail oil composition, the composition percentages are as follows:

[0046] Compound Additives

[0047] Fatty acid ester mixture: 0.2

[0048] Borate mixture: 0.1

[0049] Oleic acid epoxy ester: 0.1

[0050] Rust inhibitor

[0051] Mercaptothiadiazole derivatives: 0.2

[0052] Antioxidants

[0053] 2,6-di-tert-butyl-p-cresol: 0.15

[0054] High molecular weight phenol ester: 0.15

[0055] Defoaming agent

[0056] Non-silicon antifoaming agent: 0.02

[0057] Mineral base oil

[0058] 68# mineral base oil: remainder

[0059] Preparation method: After the mineral base oil and non-silicon antifoaming agent are blended at 45-50°C for 0.5-1 hour, other additive components are added. After blending at 50-60°C for 2 hours, the viscosity, viscosity index, liquid phase rust and other items are analyzed and tested. The finished product is obtained if it is qualified.

[0060] The performance indicators of the guide rail oil obtained in this embodiment are shown in the following table:

[0061]

[0062]

[0063] It can be seen from the above table that the product components of the present invention are phosphorus-free, have excellent antioxidant properties, outstanding anti-corrosion and anti-rust properties, extremely strong friction reduction and anti-climbing properties, reduce equipment operation resistance, and are a high-quality, environmentally friendly guide rail oil.

[0064] Third embodiment:

[0065] A method for preparing a phosphorus-free and environmentally friendly guide rail oil composition, characterized in that it comprises the following steps:

[0066] S101: blending the mineral base oil and the defoamer to obtain a mixture;

[0067] S102: adding other additive components to the mixture and then blending to obtain a sample;

[0068] S103: After filtering the sample through a high-definition filtering system, sampling and testing;

[0069] S104: Fill the samples that meet the index requirements.

[0070] Furthermore, in “blending the mineral base oil and the defoaming agent to obtain a mixture”, the method further comprises: a blending temperature of 45 to 55° C.; and a blending time of 0.5 to 1 hour.

[0071] Furthermore, in “adding other additive components to the mixture and then blending to obtain a sample”, the method also includes: a blending temperature of 50 to 60° C.; and a blending time of 1 to 3 hours.

[0072] Specifically, the mineral base oil and defoaming agent are blended at 45-55°C for 0.5-1 hour, and then other additive components are added, and then blended at 50-60°C for 1-3 hours. After filtering through a high-definition filtration system (5μ white steel filter element, filtration pressure not exceeding 0.2Mpa), samples are taken for testing. If they meet the technical index requirements, they are judged as qualified products and filled.

[0073] The product components of the present invention are phosphorus-free, have good stick-slip properties and excellent friction reduction performance, excellent anti-climbing performance, corrosion and rust prevention, and are phosphorus-free, environmentally friendly, high-performance guide rail oil.

[0074] The difference between the present invention and the prior art is that:

[0075] 1. A phosphorus-free guide rail oil composite additive is prepared by optimizing the ratio of a fatty acid ester oiliness agent mixture, a borate extreme pressure agent mixture, and an oleic acid epoxy ester friction reducer mixture. The components are phosphorus-free and have good stick-slip properties and excellent friction reduction performance.

[0076] 2. Use mercaptothiadiazole derivatives to form a mercaptothiadiazole protective coating on the friction surface to achieve the effect of anti-corrosion and anti-rust, and the components are phosphorus-free.

[0077] 3. Use phenolic antioxidants as antioxidants, such as 2,6-di-tert-butyl-p-cresol and a mixture of high molecular weight phenol esters, to prevent the oil from generating oxides during operation, and the colloids from adhering to the metal surface, causing the friction surface to lose lubricity and become astringent, resulting in creeping of the machine tool guide rails. The components are phosphorus-free.

[0078] The guide rail oil component prepared by the present invention is phosphorus-free, has good stick-slip properties and excellent friction reduction performance, excellent anti-creeping performance, corrosion and rust prevention. It is a phosphorus-free, environmentally friendly, high-performance guide rail oil, which allows enterprises to achieve "phosphorus reduction" emissions and protect the water ecological environment.

[0079] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A phosphorus-free and environmentally friendly guide rail oil composition, characterized in that: Includes the following components and weight percentages: Composite additive 0.2-0.8%; rust inhibitor 0.1-0.3%; antioxidant 0.2-0.5%; defoamer 0.01-0.1%; the balance is mineral base oil.

2. The phosphorus-free and environmentally friendly guide rail oil composition according to claim 1, characterized in that: The composite additive is a mixture of fatty acid ester oiliness agent, a mixture of borate extreme pressure agent and a mixture of oleic acid epoxy ester friction reducer.

3. The phosphorus-free and environmentally friendly guide rail oil composition according to claim 1, characterized in that: The rust inhibitor is a mercaptothiadiazole derivative.

4. The phosphorus-free and environmentally friendly guide rail oil composition according to claim 1, characterized in that: The antioxidant is a phenolic antioxidant.

5. The phosphorus-free and environmentally friendly guide rail oil composition according to claim 1, characterized in that: The defoaming agent is a non-silicon antifoaming agent.

6. A method for preparing a phosphorus-free and environment-friendly guide rail oil composition, for preparing the phosphorus-free and environment-friendly guide rail oil composition as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: The mineral base oil and the defoamer are blended to obtain a mixture; Adding other additive components to the mixture and then blending to prepare a sample; After filtering the sample through a high-definition filtration system, sampling is performed; The samples that meet the index requirements will be filled.

7. The method for preparing the phosphorus-free and environment-friendly guide rail oil composition according to claim 6, characterized in that: In "blending the mineral base oil and the defoamer to obtain a mixture", the method further comprises: The blending temperature is 45-55°C; the blending time is 0.5-1 hour.

8. The method for preparing the phosphorus-free and environment-friendly guide rail oil composition according to claim 6, characterized in that: In "adding other additive components to the mixture and then blending to obtain a sample", the method further comprises: The blending temperature is 50-60°C; the blending time is 1-3 hours.

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