CN116814318A - Lubricating grease special for bearing of drill grinder and preparation method thereof - Google Patents
Lubricating grease special for bearing of drill grinder and preparation method thereof Download PDFInfo
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- CN116814318A CN116814318A CN202310608747.4A CN202310608747A CN116814318A CN 116814318 A CN116814318 A CN 116814318A CN 202310608747 A CN202310608747 A CN 202310608747A CN 116814318 A CN116814318 A CN 116814318A
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- keeping
- temperature
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- base oil
- heating
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- 239000004519 grease Substances 0.000 title claims abstract description 24
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000002199 base oil Substances 0.000 claims abstract description 22
- PAFZNILMFXTMIY-UHFFFAOYSA-N cyclohexylamine Chemical compound NC1CCCCC1 PAFZNILMFXTMIY-UHFFFAOYSA-N 0.000 claims abstract description 18
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 12
- 239000012948 isocyanate Substances 0.000 claims abstract description 10
- 229920002367 Polyisobutene Polymers 0.000 claims abstract description 9
- ISKQADXMHQSTHK-UHFFFAOYSA-N [4-(aminomethyl)phenyl]methanamine Chemical compound NCC1=CC=C(CN)C=C1 ISKQADXMHQSTHK-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000001412 amines Chemical class 0.000 claims abstract description 8
- 150000002513 isocyanates Chemical class 0.000 claims abstract description 7
- 239000002562 thickening agent Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 244000043261 Hevea brasiliensis Species 0.000 claims abstract description 3
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims abstract description 3
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010688 mineral lubricating oil Substances 0.000 claims abstract description 3
- 229920003052 natural elastomer Polymers 0.000 claims abstract description 3
- 229920001194 natural rubber Polymers 0.000 claims abstract description 3
- 229920001228 polyisocyanate Polymers 0.000 claims abstract description 3
- 239000005056 polyisocyanate Substances 0.000 claims abstract description 3
- 229920000193 polymethacrylate Polymers 0.000 claims abstract description 3
- 239000010689 synthetic lubricating oil Substances 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 23
- 238000002156 mixing Methods 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 description 4
- 238000010835 comparative analysis Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention discloses special lubricating grease for a bearing of a drill grinder and a preparation method thereof, wherein the special lubricating grease is prepared from the following raw materials in parts by weight: 80-90 parts of base oil, wherein the base oil is one or a mixture of mineral lubricating oil and synthetic lubricating oil; 10-20 parts of thickening agent, wherein the thickening agent is a composition of isocyanate and organic amine, the isocyanate is one or more of monoisocyanate, diisocyanate, triisocyanate or polyisocyanate, and the organic amine is one or more of octadecylamine, dodecyl amine, cyclohexylamine or p-xylylenediamine; 1-3 parts of tackifier, wherein the tackifier is one or more of polyisobutylene, natural rubber or polymethacrylate. The invention also specifically discloses a preparation method of the special lubricating grease for the bearing of the drill grinder. The lubricating grease prepared by the invention has the advantages of high temperature resistance, strong adhesion, good shear stability, excellent performance and good market value.
Description
Technical Field
The invention belongs to the technical field of lubricating grease, and particularly relates to special lubricating grease for a bearing of a drill grinder and a preparation method thereof.
Background
The drill grinder is also called a drill grinder, and is a small grinder for industrial grinding of drill bits. The drill bit grinding machine, in particular to a micro-drilling grinding machine, has the advantages of high precision required by the used bearing, small vibration and good performance, and can grind out qualified drill bits. Therefore, the quality of the bearing performance directly determines the use condition of the drill grinder. The maintenance of the bearing mainly depends on lubricating grease, and the excellent lubricating grease can not only prolong the service life of the bearing, but also improve the performance of the grinding machine.
Disclosure of Invention
The special lubricating grease for the drill grinder bearing prepared by the method has the characteristics of good shear stability, high temperature resistance, strong adhesiveness, low noise and the like, and is low-noise and excellent in performance.
The special lubricating grease for the bearing of the drill grinder is characterized by being prepared from the following raw materials in parts by weight:
80-90 parts of base oil, wherein the base oil is one or a mixture of mineral lubricating oil and synthetic lubricating oil;
10-20 parts of thickening agent, wherein the thickening agent is a composition of isocyanate and organic amine, the isocyanate is one or more of monoisocyanate, diisocyanate, triisocyanate or polyisocyanate, and the organic amine is one or more of octadecylamine, dodecyl amine, cyclohexylamine or p-xylylenediamine;
1-3 parts of tackifier, wherein the tackifier is one or more of polyisobutylene, natural rubber or polymethacrylate.
Further defined, the weight ratio of the isocyanate to the organic amine is 1-2:1.
Further defined, the isocyanate is a diisocyanate KDI or MDI.
The invention relates to a preparation method of special lubricating grease for a bearing of a drill grinder, which is characterized by comprising the following specific steps:
step S1: respectively weighing raw materials according to the weight portion, uniformly stirring and mixing 1/2 base oil and diisocyanate MDI, heating to 75-85 ℃ and keeping the temperature for 30 minutes;
step S2: mixing and stirring 1/2 base oil and cyclohexylamine, heating to 75-85 ℃, keeping the temperature for 30 minutes, and adding p-xylylenediamine after keeping the temperature;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80-100deg.C, adding polyisobutene, stirring, mixing, degassing at 80deg.C, and discharging fat.
Compared with the prior art, the invention has the following advantages: the lubricating grease prepared by the invention has the advantages of high temperature resistance, strong adhesion, good shear stability, excellent performance and good market value.
Detailed Description
The specific technical scheme of the present invention will be described in detail with reference to specific embodiments.
Examples
Taking 80 kg of base oil as an example
Step S1: uniformly stirring and mixing 40 kg of base oil and 5 kg of diisocyanate MDI, heating to 80 ℃ and keeping the temperature for 30 minutes;
step S2: mixing 40 kg of base oil and 3.5 kg of cyclohexylamine, heating to 80 ℃, keeping the temperature for 30 minutes, and adding 2 kg of p-xylylenediamine after keeping the temperature;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80 ℃, adding 2 kg of polyisobutene, stirring uniformly, degassing and discharging grease.
Examples
Taking 80 kg of base oil as an example
Step S1: uniformly stirring and mixing 40 kg of base oil and 5 kg of diisocyanate MDI, heating to 80 ℃ and keeping the temperature for 30 minutes;
step S2: uniformly stirring and mixing 40 kg of base oil and 3.5 kg of octadecylamine, heating to 80 ℃, keeping the temperature for 30 minutes, and adding 2 kg of p-benzyl amine after keeping the temperature;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80 ℃, adding 2 kg of polyisobutene, stirring uniformly, degassing and discharging grease.
Examples
Taking 80 kg of base oil as an example
Step S1: uniformly stirring and mixing 40 kg of base oil and 5 kg of diisocyanate MDI, heating to 80 ℃ and keeping the temperature for 30 minutes;
step S2: uniformly stirring and mixing 40 kg of base oil and 3.5 kg of cyclohexylamine, heating to 80 ℃, keeping the temperature for 30 minutes, and adding 2 kg of p-xylylenediamine after keeping the temperature constant;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80 ℃, adding 2 kg of polyisobutene, stirring uniformly, degassing and discharging grease.
Examples
80 kg of base oil is taken as an example
Step S1: uniformly stirring and mixing 40 kg of base oil and 5 kg of diisocyanate MDI, heating to 80 ℃ and keeping the temperature for 30 minutes;
step S2: uniformly stirring and mixing 40 kg of base oil and 3.5 kg of cyclohexylamine, heating to 80 ℃, keeping the temperature for 30 minutes, and adding 2 kg of p-xylylenediamine after keeping the temperature constant;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80 ℃, adding 2 kg of polyisobutene, stirring uniformly, and degassing to obtain grease.
By comparative analysis of examples 1-4, the difference in properties of the resulting greases was evident under the same mass parts of raw materials and the same preparation conditions: the grease prepared in example 1 has the best indexes such as cone penetration, dropping point and the like after detection. The greases prepared in examples 2 and 3 were generally used for each performance index. The grease prepared in example 4 had the worst performance indexes. Further description: the diisocyanate MDI + cyclohexylamine + p-xylylenediamine is the thickener solution being the most preferred solution.
While the basic principles of the invention have been shown and described, there are various changes and modifications to the invention, which fall within the scope of the invention as hereinafter claimed, without departing from the spirit and scope of the invention.
Claims (4)
1. The special lubricating grease for the bearing of the drill grinder is characterized by being prepared from the following raw materials in parts by weight:
80-90 parts of base oil, wherein the base oil is one or a mixture of mineral lubricating oil and synthetic lubricating oil;
10-20 parts of thickening agent, wherein the thickening agent is a composition of isocyanate and organic amine, the isocyanate is one or more of monoisocyanate, diisocyanate, triisocyanate or polyisocyanate, and the organic amine is one or more of octadecylamine, dodecyl amine, cyclohexylamine or p-xylylenediamine;
1-3 parts of tackifier, wherein the tackifier is one or more of polyisobutylene, natural rubber or polymethacrylate.
2. The grease for bearings of drill grinders according to claim 1, wherein: the weight ratio of the isocyanate to the organic amine is 1-2:1.
3. The grease for bearings of drill grinders according to claim 1, wherein: the isocyanate is diisocyanate KDI or MDI.
4. A method for preparing the special lubricating grease for the bearing of the drill grinder, which is characterized by comprising the following specific steps:
step S1: respectively weighing raw materials according to the weight portion, uniformly stirring and mixing 1/2 base oil and diisocyanate MDI, heating to 75-85 ℃ and keeping the temperature for 30 minutes;
step S2: mixing and stirring 1/2 base oil and cyclohexylamine, heating to 75-85 ℃, keeping the temperature for 30 minutes, and adding p-xylylenediamine after keeping the temperature;
step S3: uniformly stirring and mixing the product obtained in the step S1 and the product obtained in the step S2, heating to 100 ℃ and keeping the temperature for 1 hour, and heating to 130 ℃ and keeping the temperature for 30 minutes;
step S4: cooling to 80-100deg.C, adding polyisobutene, stirring, mixing, degassing at 80deg.C, and discharging fat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310608747.4A CN116814318A (en) | 2023-05-29 | 2023-05-29 | Lubricating grease special for bearing of drill grinder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310608747.4A CN116814318A (en) | 2023-05-29 | 2023-05-29 | Lubricating grease special for bearing of drill grinder and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116814318A true CN116814318A (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310608747.4A Pending CN116814318A (en) | 2023-05-29 | 2023-05-29 | Lubricating grease special for bearing of drill grinder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116814318A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696366A (en) * | 2009-10-26 | 2010-04-21 | 益田润石（北京）化工有限公司 | Method for preparing lubricating grease with excellent anti-wear and wear-resistant performance |
| CN102311850A (en) * | 2011-08-04 | 2012-01-11 | 安庆市中天石油化工有限公司 | Grease specially used for heavy-load open-type gear and preparation method thereof |
-
2023
- 2023-05-29 CN CN202310608747.4A patent/CN116814318A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696366A (en) * | 2009-10-26 | 2010-04-21 | 益田润石（北京）化工有限公司 | Method for preparing lubricating grease with excellent anti-wear and wear-resistant performance |
| CN102311850A (en) * | 2011-08-04 | 2012-01-11 | 安庆市中天石油化工有限公司 | Grease specially used for heavy-load open-type gear and preparation method thereof |
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