CN104560285A - Shield tail sealing grease and preparation method thereof - Google Patents
Shield tail sealing grease and preparation method thereof Download PDFInfo
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- CN104560285A CN104560285A CN201310474268.4A CN201310474268A CN104560285A CN 104560285 A CN104560285 A CN 104560285A CN 201310474268 A CN201310474268 A CN 201310474268A CN 104560285 A CN104560285 A CN 104560285A
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- shield
- tail seal
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Abstract
The invention relates to environment-friendly type shield tail sealing grease and its preparation method. The shield tail sealing grease is composed of the following ingredients, by weight, 10-28% of base oil, 5-15% of lubricating oil, 5-15% of fiber, 35-55% of powder, 5-14% of a thickening agent, 5-12% of a solvent and 0.5-5% of an antioxidant. The environment-friendly type shield tail sealing grease has good performance, has stable performance, is noncorrosive to a shield tail material, can be pumped, is non-toxic, has no smell, and causes no pollution to the environment.
Description
Technical field
The invention belongs to chemical building material field, relate in particular to tail seal grease of shield of a kind of environment-friendly type for shield excavation machine and preparation method thereof.
Background technology
In order to adapt to the development of urban construction, underground works is increasing, and wherein shielded construction is the main method of urban track traffic constructing tunnel.In shield engine tunneling process, because there is gap between shield shell-and-tube sheet outer wall, in order to prevent shield shell outside water and silt particle etc. from entering in shield structure, encapsulation process must be carried out to shield tail and gap, section of jurisdiction.Exist between sealing shield ventral brush and section of jurisdiction and rub, the excessive easy damage shield tail apparatus of frictional force, needs to be filled with a sealing grease between tail sealing brush, to reduce the frictional force between section of jurisdiction and shield ventral brush.Tail seal grease of shield is one of primary sealing material between shield tail and section of jurisdiction, plays an important role in shielded construction.Tail seal grease of shield should have sealing and lubrication, can effectively protect shield tail, isolated underground water and mud, ensures that shield structure makes smooth advances.Meanwhile, also there is the effect preventing shield structure from corroding and reducing wear.The quality of tail sealing depends on the performance of tail seal grease of shield, and it directly affects quality and the safety of construction.
Research in the formulation optimization and performance characterization of tail seal grease of shield is little.Market at home, the tail seal grease of shield of excellent performance is less, and especially its pumping is far below same kind of products at abroad.Tail seal grease of shield former system shield excavation machine is provided together, if succeeded in developing, not only can break away from the situation of dependence on import, and can save engineering cost.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of environment-friendly type, stable performance, the good tail seal grease of shield of sealing property.
For solving the problems of the technologies described above, the technical solution used in the present invention is: described tail seal grease of shield is made up of following component by mass percentage: base oil 10-28%, lubricating oil 5-15%, fiber 5-15%, powder 35-55%, thickening material 5-14%, solvent 5-12%, antioxidant 0.5-5%.
The base oil of tail seal grease of shield of the present invention is one or more or its mixture in 32# mechanical-hydraulic oil, 46# mechanical-hydraulic oil, 68# mechanical-hydraulic oil and antiwear hydraulic oil.
The lubricating oil of tail seal grease of shield of the present invention is one or more or its mixture in Lithium-base grease, 2# lithium saponify, 3# lithium saponify.
The thickening material of tail seal grease of shield of the present invention is one or more or its mixture in polyisobutene, polypropylene copolymer.
The powder of tail seal grease of shield of the present invention is one or more or its mixture in calcium carbonate, talcum powder and kaolin.
The fiber of tail seal grease of shield of the present invention is degradable wood fibre.
The solvent of tail seal grease of shield of the present invention is aliphatics lipid solvent.
The antioxidant of tail seal grease of shield of the present invention is one or more or its mixture in phenolic compound, sulfide.
The present invention also provides a kind of method preparing above-mentioned tail seal grease of shield, described method comprises mediates evenly by base oil, lubricating oil, thickening material, solvent, antioxidant according to above-mentioned mass percent mix and blend, then powder is added, stir, finally add fiber, continue constant temperature and stir 1-2 hour.
Beneficial effect: environment-friendly type tail seal grease of shield good seal performance of the present invention, stable performance, does not have corrodibility to shield tail material, can pumping, and nontoxic, odorlessness, environment is not polluted.
Embodiment
Embodiment 1: the proportioning of each component of tail seal grease of shield of the present invention according to mass percent is: base oil 22%, lubricating oil 8%, fiber 13%, powder 43%.Thickening material 7%, solvent 6%, antioxidant 1%.First by base oil, lubricating oil, thickening material, solvent, antioxidant, proportionally mix and blend kneading is even, then add load weighted powder, stir and mediate evenly, finally add load weighted fiber, continue constant temperature and stir 2 hours, can tail seal grease of shield be obtained.
Embodiment 2: the proportioning of each component of tail seal grease of shield of the present invention according to mass percent is: base oil 16%, lubricating oil 9%, fiber 10%, powder 48%.Thickening material 9%, solvent 7%, antioxidant 1%.First by base oil, lubricating oil, thickening material, solvent, antioxidant, proportionally mix and blend kneading is even, then add load weighted powder, stir and mediate evenly, finally add load weighted fiber, continue constant temperature and stir 2 hours, can tail seal grease of shield be obtained.
Embodiment of the present invention 1-2 quality product performance is as follows:
| Test item | Test condition | Assay |
| Denseness | 23±2℃， | ≥240 |
| Volatility (%) | 80±2℃，5h | 1.0-1.5 |
| Water pressure resistance stopping property (3.5MPa) | Without leaking | Without leaking |
| Sag | 50±2℃，5h | 0 |
| Water resistant impact | 0.02MPa, rushes 20min | 0 |
| Metal protection | -- | Without variable color, corrosion-free |
| Aid pumpability (g/min) | 25 DEG C, pressure 1MPa | 28-42 |
In conjunction with specific embodiments embodiments of the present invention are described in detail above, but the invention is not restricted to above-mentioned embodiment, in the ken that art those of ordinary skill possesses, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Claims (9)
1. an environment-friendly type tail seal grease of shield, is characterized in that described tail seal grease of shield is made up of following component by mass percentage: base oil 10-28%, lubricating oil 5-15%, fiber 5-15%, powder 35-55%, thickening material 5-14%, solvent 5-12%, antioxidant 0.5-5%.
2. tail seal grease of shield as claimed in claim 1, is characterized in that, described base oil is one or more or its mixture in 32# mechanical-hydraulic oil, 46# mechanical-hydraulic oil, 68# mechanical-hydraulic oil and antiwear hydraulic oil.
3. tail seal grease of shield as claimed in claim 1, is characterized in that, described lubricating oil is one or more or its mixture in Lithium-base grease, 2# lithium saponify, 3# lithium saponify.
4. tail seal grease of shield as claimed in claim 1, is characterized in that, described thickening material is one or more or its mixture in polyisobutene, polypropylene copolymer.
5. tail seal grease of shield as claimed in claim 1, is characterized in that, described powder is one or more or its mixture in calcium carbonate, talcum powder and kaolin.
6. tail seal grease of shield as claimed in claim 1, it is characterized in that, described fiber is degradable wood fibre.
7. tail seal grease of shield as claimed in claim 1, it is characterized in that, described solvent is aliphatics lipid solvent.
8. tail seal grease of shield as claimed in claim 1, is characterized in that, described antioxidant is one or more or its mixture in phenolic compound, sulfide.
9. prepare the method for the tail seal grease of shield according to any one of the claims for one kind, it is characterized in that: according to the mass percent of each component according to claim 1, by base oil, lubricating oil, thickening material, solvent, antioxidant, proportionally mix and blend kneading is even, then powder is added, stir, finally add fiber, continue constant temperature and stir 1-2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474268.4A CN104560285B (en) | 2013-10-12 | 2013-10-12 | A kind of tail seal grease of shield and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474268.4A CN104560285B (en) | 2013-10-12 | 2013-10-12 | A kind of tail seal grease of shield and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104560285A true CN104560285A (en) | 2015-04-29 |
| CN104560285B CN104560285B (en) | 2018-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310474268.4A Active CN104560285B (en) | 2013-10-12 | 2013-10-12 | A kind of tail seal grease of shield and preparation method thereof |
Country Status (1)
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| CN (1) | CN104560285B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524686A (en) * | 2015-12-18 | 2016-04-27 | 北京汽车股份有限公司 | Lubricating sealing oil for automotive air outlet and preparation method thereof |
| CN105907369A (en) * | 2016-04-19 | 2016-08-31 | 山东省交通科学研究院 | A sealing material used for bituminous pavement in-situ permeability tests, a preparing method thereof and a supporting construction tool |
| CN106995741A (en) * | 2017-05-08 | 2017-08-01 | 浙江国能密封材料科技有限公司 | It is a kind of for shield tail grease of shield machine and preparation method thereof |
| CN107118828A (en) * | 2017-05-22 | 2017-09-01 | 新乡市恒星科技有限责任公司 | Novel shield tail fat and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139541A (en) * | 2006-09-08 | 2008-03-12 | 刘延鹏 | Tail sealing grease for shield tunneller |
| CN101812360A (en) * | 2009-02-20 | 2010-08-25 | 上海滏兴工贸有限公司 | Environmentally-friendly shield tail sealing grease composition for shield development machine |
-
2013
- 2013-10-12 CN CN201310474268.4A patent/CN104560285B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139541A (en) * | 2006-09-08 | 2008-03-12 | 刘延鹏 | Tail sealing grease for shield tunneller |
| CN101812360A (en) * | 2009-02-20 | 2010-08-25 | 上海滏兴工贸有限公司 | Environmentally-friendly shield tail sealing grease composition for shield development machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105524686A (en) * | 2015-12-18 | 2016-04-27 | 北京汽车股份有限公司 | Lubricating sealing oil for automotive air outlet and preparation method thereof |
| CN105524686B (en) * | 2015-12-18 | 2018-10-09 | 北京汽车股份有限公司 | A kind of lubrication Seal Oil and preparation method thereof for automotive air outlet |
| CN105907369A (en) * | 2016-04-19 | 2016-08-31 | 山东省交通科学研究院 | A sealing material used for bituminous pavement in-situ permeability tests, a preparing method thereof and a supporting construction tool |
| CN105907369B (en) * | 2016-04-19 | 2018-03-27 | 山东省交通科学研究院 | A kind of bituminous pavement seepage test encapsulant, its preparation method and matching operation instrument |
| CN106995741A (en) * | 2017-05-08 | 2017-08-01 | 浙江国能密封材料科技有限公司 | It is a kind of for shield tail grease of shield machine and preparation method thereof |
| CN107118828A (en) * | 2017-05-22 | 2017-09-01 | 新乡市恒星科技有限责任公司 | Novel shield tail fat and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104560285B (en) | 2018-04-10 |
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Effective date of registration: 20180803 Address after: 338000 1 iron mountain road, Xinyu steel company, Xinyu, Jiangxi Patentee after: Xinyu Li Keda Technology Co., Ltd. Address before: 211167 Hong Jing Road, Jiangning District, Nanjing, Jiangsu Province, No. 1 Patentee before: Nanjing Institute of Technology |
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