CN114317070A - Biodegradable lubricating grease spray for rails and preparation method thereof - Google Patents
Biodegradable lubricating grease spray for rails and preparation method thereof Download PDFInfo
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- CN114317070A CN114317070A CN202111616576.7A CN202111616576A CN114317070A CN 114317070 A CN114317070 A CN 114317070A CN 202111616576 A CN202111616576 A CN 202111616576A CN 114317070 A CN114317070 A CN 114317070A
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- lubricating grease
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Abstract
The invention relates to the technical field of lubricating grease, in particular to a biodegradable lubricating grease spray for rails and a preparation method thereof. A biodegradable lubricating grease spray for rails is characterized by comprising the following raw materials in parts by weight: 32-45% of base oil, 3-5% of thickening agent, 2-3% of additive and 50-60% of propellant. Compared with the prior art, the raw materials selected by the invention are safe, environment-friendly, non-toxic and harmless, and the health, safety and environmental protection risks of users in the using process are eliminated. The base oil has good compatibility with the propellant, and the sprayed oil film is uniform and does not agglomerate. When the spray agent is sprayed on the surface of a friction pair, a propellant can volatilize rapidly, the lubricating grease keeps the paste form of non-Newtonian fluid, is not easy to run off, has excellent lubrication performance, and prolongs the service life of the friction pair.
Description
Technical Field
The invention relates to the technical field of lubricating grease, in particular to a biodegradable lubricating grease spray for rails and a preparation method thereof.
Background
With the development of national economy, the traction power of railway transportation is changed obviously. Mainly adopts internal combustion and electric locomotives to take on traction, and takes a big step towards the aspects of heavy load, expanding and editing and high speed. But the damage caused by the abrasion of the wheel rim and the steel rail (especially the curved steel rail) is increasingly prominent, and the service life of the wheel and the rail and the transportation production safety are directly influenced.
In order to solve the problem of abrasion of the wheels and the rails, scientific research work in various aspects, such as reasonable matching of high-strength steel rails and wheel rails, adjustment of geometrical parameters of lines and the like, is already carried out or is being developed in the past 90 s, and some of the scientific research work have already achieved results. In order to effectively improve the severe wear condition of the wheel rail, save traction power and obtain greater economic benefit, the wheel rail lubrication technology must be researched and developed from the tribology perspective.
At present, the abrasion of a rail is basically solved by a lubricating oil spray, but the lubricating oil spray is easy to drip in the open air, the field and the open type lubricating working condition, so that a friction pair is abraded and rusted, and the service life is shortened. And the propane and butane used in the lubricating oil spray has the effects of anesthesia and asphyxia to a human body, and the human body can have symptoms of dizziness, headache, poor sleep, tiredness and the like after being contacted for a long time.
Therefore, it is very necessary to design a biodegradable lubricating grease spray for rails and a preparation method thereof.
Disclosure of Invention
The biodegradable lubricating grease spray for the rails and the preparation method thereof are safe, environment-friendly, non-toxic and harmless, and eliminate the health, safety and environmental protection risks of users in the using process. When the lubricating grease spray is sprayed to a friction part, the propellant can volatilize rapidly, the lubricating grease keeps the thixotropy of non-Newtonian fluid and is not easy to run off, so that the lubricating grease spray can lubricate and protect the surface of a friction pair for a long time, and the service life of equipment is prolonged.
In order to achieve the purpose, the biodegradable lubricating grease spray for the rails is designed, and is characterized by comprising the following raw materials in parts by weight: 32-45% of base oil, 3-5% of thickening agent, 2-3% of additive and 50-60% of propellant;
the preparation method comprises the following steps:
s1, adding 1/2 base oil into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding a thickening agent, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping the residual base oil into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding the additive into the blending kettle, continuously stirring and homogenizing for 60 min;
and S5, filling the material tank in the blending kettle into a spraying tank, filling the propellant to finish canning.
The base oil is one or more of poly alpha olefin, alkyl naphthalene and unsaturated polyol ester.
The thickening agent is one or more of lithium soap and composite aluminum soap.
The propellant is one or more of HCR-22 and tetrafluoroethane.
The additive is one or more of an antioxidant and an antirust agent.
Compared with the prior art, the invention has the following beneficial effects:
1. the raw materials selected by the invention are safe, environment-friendly, non-toxic and harmless, and the health, safety and environmental protection risks of users in the using process are eliminated.
2. The base oil has good compatibility with the propellant, and the sprayed oil film is uniform and does not agglomerate.
3. When the spray agent is sprayed on the surface of a friction pair, a propellant can volatilize rapidly, the lubricating grease keeps the paste form of non-Newtonian fluid, is not easy to run off, has excellent lubrication performance, and prolongs the service life of the friction pair.
Detailed Description
The first embodiment is as follows:
the lubricating grease spray of the embodiment comprises the following raw materials in parts by weight: 32% of poly-alpha-olefin, 5% of lithium soap, 3% of antioxidant and antirust agent and 60% of HCR-22.
The method for preparing the lubricating grease spray by using the raw materials comprises the following steps:
s1, putting 20% of poly-alpha-olefin into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding 5% of lithium soap, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping 12% of poly-alpha-olefin into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding 3% of antioxidant and antirust agent into the blending kettle, continuously stirring and homogenizing for 60 min;
s5, filling the material tank in the blending kettle into a spray tank, filling 60% of HCR-22, and completing canning.
The preparation method of the embodiment ensures the crystallization and growth environment of the soap fiber of the thickening agent in the base oil, so that the soap fiber with regular length and diameter can grow, the base oil can permeate into the soap fiber, and the colloid stability of the lubricating grease can be improved.
When the lubricating grease spray of the embodiment is used, the propellant can be volatilized quickly, the lubricating grease formed by the base oil and the thickening agent has the specific thixotropic property as a non-Newtonian fluid, and the pasty property of the lubricating grease is kept for a long time, so that the lubricating grease spray can lubricate rails well and cannot fall off.
Biodegradable base oil and thickening agent are selected for use in the embodiment, so that the lubricating oil is safe and healthy, good biodegradation in the later period is facilitated for the field and open type lubricating working conditions, and pollution and influence to the environment are avoided.
Example two:
the lubricating grease spray of the embodiment comprises the following raw materials in parts by weight: 45% of unsaturated polyol ester, 5% of lithium soap, 3% of antioxidant and antirust agent and 50% of tetrafluoroethane.
The method for preparing the lubricating grease spray by using the raw materials comprises the following steps:
s1, adding 20% of unsaturated polyol ester into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding 5% of lithium soap, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping 25% of unsaturated polyol ester into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding 3% of antioxidant and antirust agent into the blending kettle, continuously stirring and homogenizing for 60 min;
s5, filling the material tank in the blending kettle into a spray tank, filling 50% of tetrafluoroethane, and completing canning.
Example three:
the lubricating grease spray of the embodiment comprises the following raw materials in parts by weight: 35% of unsaturated polyol ester, 7% of poly-alpha-olefin, 5% of composite aluminum soap, 3% of antioxidant and antirust agent and 50% of tetrafluoroethane.
The method for preparing the lubricating grease spray by using the raw materials comprises the following steps:
s1, adding 35% of unsaturated polyol ester into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding 5% of composite aluminum soap, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping 7% of poly-alpha-olefin into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding 3% of antioxidant and antirust agent into the blending kettle, continuously stirring and homogenizing for 60 min;
s5, filling the material tank in the blending kettle into a spray tank, filling 50% of tetrafluoroethane, and completing canning.
Example four:
the lubricating grease spray of the embodiment comprises the following raw materials in parts by weight: 22% of unsaturated polyol ester, 20% of poly-alpha-olefin, 5% of composite aluminum soap, 3% of antioxidant and antirust agent and 50% of HCR-22.
The method for preparing the lubricating grease spray by using the raw materials comprises the following steps:
s1, adding 20% of poly-alpha-olefin into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding 5% of composite aluminum soap, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping 22% of unsaturated polyol ester into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding 3% of antioxidant and antirust agent into the blending kettle, continuously stirring and homogenizing for 60 min;
s5, filling the material tank in the mixing kettle into a spray tank, filling 50% of HCR-22, and completing canning.
The product obtained in the first example of the invention was measured for various performance parameters according to the standard methods listed in table 1 below, and the results are summarized in table 1.
Table 1:
| item | Example 1 | Test method |
| Appearance of the product | Off-white to light yellow | Visual inspection of |
| Dropping Point, C | 210 | GB/T 3498 |
| Working cone penetration, 25 deg.C, 0.1mm | 330 | GB/T 269 |
| Corrosion of copper sheet at 100 deg.C for 24h | Qualified | GB/T 7326 |
| The diameter of the abrasive wear-point is greater,mm | 0.45 | SH/T 0204 |
Claims (5)
1. a biodegradable lubricating grease spray for rails is characterized by comprising the following raw materials in parts by weight: 32-45% of base oil, 3-5% of thickening agent, 2-3% of additive and 50-60% of propellant;
the preparation method comprises the following steps:
s1, adding 1/2 base oil into a reaction kettle at normal temperature, stirring, heating to 60-70 ℃, adding a thickening agent, heating to 210-215 ℃, and keeping for 30 min;
s2, pumping the residual base oil into the reaction kettle, reducing the temperature in the kettle to 180 ℃, and keeping the constant temperature for 5 min;
s3, transferring the materials in the reaction kettle to a blending kettle, and stirring and cooling to 70-80 ℃;
s4, adding the additive into the blending kettle, continuously stirring and homogenizing for 60 min;
and S5, filling the material tank in the blending kettle into a spraying tank, filling the propellant to finish canning.
2. The biodegradable lubricating grease spray for the rails and the preparation method thereof according to claim 1 are characterized in that: the base oil is one or more of poly alpha olefin, alkyl naphthalene and unsaturated polyol ester.
3. The biodegradable lubricating grease spray for the rails and the preparation method thereof according to claim 1 are characterized in that: the thickening agent is one or more of lithium soap and composite aluminum soap.
4. The biodegradable lubricating grease spray for the rails and the preparation method thereof according to claim 1 are characterized in that: the propellant is one or more of HCR-22 and tetrafluoroethane.
5. The biodegradable lubricating grease spray for the rails and the preparation method thereof according to claim 1 are characterized in that: the additive is one or more of an antioxidant and an antirust agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111616576.7A CN114317070A (en) | 2021-12-28 | 2021-12-28 | Biodegradable lubricating grease spray for rails and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111616576.7A CN114317070A (en) | 2021-12-28 | 2021-12-28 | Biodegradable lubricating grease spray for rails and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114317070A true CN114317070A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111616576.7A Withdrawn CN114317070A (en) | 2021-12-28 | 2021-12-28 | Biodegradable lubricating grease spray for rails and preparation method thereof |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094023A (en) * | 2009-10-29 | 2011-05-12 | Nsk Ltd | Grease composition for railway axle bearing and roller bearing for railway axle support |
| CN105950267A (en) * | 2016-05-23 | 2016-09-21 | 中国铁道科学研究院金属及化学研究所 | Environment-friendly wheel and track lubricating grease and method for preparing same |
| CN106318702A (en) * | 2016-08-23 | 2017-01-11 | 肇庆欧迪斯实业有限公司 | Cleaning aerosol |
| CN106753712A (en) * | 2016-12-09 | 2017-05-31 | 山东新华医疗器械股份有限公司 | Aerosol type lubricating and antirust agent and preparation method thereof |
| CN111500343A (en) * | 2020-04-21 | 2020-08-07 | 无锡中石油润滑脂有限责任公司 | Composite calcium sulfonate type railway wheel-rail lubricating grease and preparation method thereof |
| CN113186022A (en) * | 2021-04-28 | 2021-07-30 | 青岛中科润美润滑材料技术有限公司 | Ultralow-temperature high-degradation grease for lubricating high-speed rail wheel rim and preparation method thereof |
-
2021
- 2021-12-28 CN CN202111616576.7A patent/CN114317070A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011094023A (en) * | 2009-10-29 | 2011-05-12 | Nsk Ltd | Grease composition for railway axle bearing and roller bearing for railway axle support |
| CN105950267A (en) * | 2016-05-23 | 2016-09-21 | 中国铁道科学研究院金属及化学研究所 | Environment-friendly wheel and track lubricating grease and method for preparing same |
| CN106318702A (en) * | 2016-08-23 | 2017-01-11 | 肇庆欧迪斯实业有限公司 | Cleaning aerosol |
| CN106753712A (en) * | 2016-12-09 | 2017-05-31 | 山东新华医疗器械股份有限公司 | Aerosol type lubricating and antirust agent and preparation method thereof |
| CN111500343A (en) * | 2020-04-21 | 2020-08-07 | 无锡中石油润滑脂有限责任公司 | Composite calcium sulfonate type railway wheel-rail lubricating grease and preparation method thereof |
| CN113186022A (en) * | 2021-04-28 | 2021-07-30 | 青岛中科润美润滑材料技术有限公司 | Ultralow-temperature high-degradation grease for lubricating high-speed rail wheel rim and preparation method thereof |
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Application publication date: 20220412 |
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