CN115418263B - High-sealing shaft sleeve material - Google Patents
High-sealing shaft sleeve material Download PDFInfo
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- CN115418263B CN115418263B CN202211070168.0A CN202211070168A CN115418263B CN 115418263 B CN115418263 B CN 115418263B CN 202211070168 A CN202211070168 A CN 202211070168A CN 115418263 B CN115418263 B CN 115418263B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
- C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/05—Metals; Alloys
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/08—Inorganic acids or salts thereof
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/12—Glass
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2213/00—Organic macromolecular compounds containing halogen as ingredients in lubricant compositions
- C10M2213/06—Perfluoro polymers
- C10M2213/062—Polytetrafluoroethylene [PTFE]
- C10M2213/0623—Polytetrafluoroethylene [PTFE] used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2221/00—Organic macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2221/04—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/36—Seal compatibility, e.g. with rubber
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/34—Lubricating-sealants
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application relates to the field of sealing of a water pump shaft sleeve, and particularly discloses a high-sealing shaft sleeve material. Comprises the following raw materials of PTEF: 46-88 parts of reinforcing agent: 5-16 parts of polyphenylene sulfide: 4-15 parts of graphite: 1.5 parts to 9.5 parts of polystyrene: 7-24 parts; the liquid pump can effectively reduce the flowing friction force and the vortex resistance of the liquid in the pump and simultaneously reduce the electricity consumption.
Description
Technical Field
The present application relates to the field of water pump shaft sleeve sealing, and more particularly, to a high sealing shaft sleeve material.
Background
The water pump is a machine for carrying out timely pressurizing and conveying treatment on waste liquid produced by people in production and living, and can be generally used for conveying liquid, gas mixture and liquid containing suspended solids.
The existing water pump can be divided into a solvent pump, a vane pump and the like according to different working principles. The vane pump mainly utilizes the interaction of the rotary vane and water to transfer energy, the existing vane pump mainly comprises a centrifugal pump, an axial flow pump and the like, the working principles of the centrifugal pump and the axial flow pump are different, the axial flow pump mainly utilizes thrust generated by high-speed rotation of an impeller to lift water, and lift force is generated on the water through the high-speed rotation of the axial flow pump vane during operation so as to convey the water from a lower position to a higher position.
At present, when people use an axial flow pump to carry out liquid delivery, water flowing in the pump is influenced by friction between a runner and the surface of an impeller of the pump and the viscosity of the water, so that energy consumed by the pump is mainly used for resisting the flowing friction force and vortex resistance of the water surface, and after long-term use, the water in the pump is worn and aggravated, and the electricity consumption is increased.
Disclosure of Invention
In order to effectively reduce the flowing friction force and vortex resistance of liquid in the pump and reduce the electricity consumption, the application provides a high-sealing shaft sleeve material.
In a first aspect, the present application provides a high sealing sleeve material, which adopts the following technical scheme:
a high-sealing shaft sleeve material is prepared from the following raw material components in parts by weight:
PTFE: 46-88 parts;
reinforcing agent: 5-16 parts;
polyphenylene sulfide: 4-15 parts;
graphite: 1.5 to 9.5 parts;
polyphenyl esters: 7-24 parts.
By adopting the technical scheme, the further synergistic effect with PTFE is generated by utilizing the compounding effect among the polyphenylene sulfide, the graphite and the polyphenyl ester, so that the aging time of the shaft sleeve material is prolonged, and the effects of good friction resistance and sealing performance are achieved.
The polyphenylene sulfide is effectively increased in molecular chain under the high-temperature condition, and is mutually adsorbed with the polyphenyl ester macromolecular chain to generate entanglement, so that the friction resistance and the sealing performance of the shaft sleeve material can be effectively improved, and meanwhile, the entanglement degree of the polyphenyl thioether and the PTFE is increased through the lubricating characteristic of graphite, so that the polyphenyl thioether and the PTFE are effectively cooperated through the compounding of the polyphenyl thioether and the PTFE.
In addition, the filling effect of the reinforcing agent is utilized to greatly reduce the surface friction force of PTFE, so that the synergistic effect of PTFE, polyphenylene sulfide, graphite and polyphenyl ester is further enhanced, the purposes of better improving the ageing resistance, smoothness, sealing performance and re-lamination performance of the shaft sleeve material are achieved, the effects of reducing the flowing friction force and vortex resistance of liquid in the pump and reducing the power consumption are achieved, and the service life of the water pump is prolonged to a certain extent.
Preferably, the weight ratio of the polyphenylene sulfide to the graphite to the polyphenyl ester is (2-3): 1: (3-4).
By adopting the technical scheme, after the inventor makes further limitation on the proportion of polyphenylene sulfide, graphite and polyphenyl ester, the synergistic effect between the polyphenylene sulfide, graphite and the polyphenyl ester and PTEF can be better exerted, and meanwhile, the ageing resistance and the smoothness of the shaft sleeve material in the application can be obviously found to be further improved.
Preferably, the polyphenylene sulfide is nano-scale, and the water absorption rate of the polyphenylene sulfide is less than or equal to 0.03%.
Preferably, the graphite is graphite fluoride, and the fluorine-carbon ratio of the graphite fluoride is less than or equal to 1.
By adopting the technical scheme, the special polyphenylene sulfide and graphite fluoride materials are selected, so that the compounding effect can be further optimized, and the shaft sleeve material with better ageing resistance, smoothness and sealing performance is obtained.
Preferably, the reinforcing agent is one or two of aluminum boride, silicon nitride and glass fiber.
By adopting the technical scheme, the surface friction force of PTFE can be better reduced by selecting the specific reinforcing agent material, so as to obtain the shaft sleeve material with better performances, thereby effectively prolonging the service life of the water pump.
Preferably, the raw material component further comprises iron-chromium-aluminum fibers, and the weight part of the iron-chromium-aluminum fibers is 2.1-4.8 parts.
By adopting the technical scheme, after the inventor adds the iron-chromium-aluminum fiber into a raw material system, the compounding effect of polyphenylene sulfide, graphite and polyphenyl ester can be better improved, so that the three components can be compounded to perform a synergistic effect with PTFE to a greater extent, and the shaft sleeve material with excellent ageing resistance, friction resistance and re-lamination performance can be obtained.
Preferably, the raw material component further comprises cobalt aluminate, wherein the weight part of the cobalt aluminate is 1.4-2.5 parts.
By adopting the technical scheme, the compound effect of cobalt aluminate on the iron-chromium-aluminum fibers can be utilized, so that the compound bonding performance of the shaft sleeve material can be further and effectively enhanced, and the service life of the shaft sleeve material is prolonged to a certain extent.
Preferably, the weight ratio of the iron-chromium-aluminum fiber to the cobalt aluminate is (2.5-3): 1.
preferably, the filament diameter of the iron-chromium-aluminum fiber is 15-60 μm.
By adopting the technical scheme, the iron-chromium-aluminum fiber with the specific monofilament diameter is selected to perform the synergistic effect of specific weight proportion with the cobalt aluminate, so that the rebound rate of the shaft sleeve material can be further improved, the application range and the service life of the water pump are effectively improved, and the water pump has great economic value.
Preferably, the particle size of the PTEF is 30-45 μm.
By adopting the technical scheme, PTEF with specific particle size is selected to effectively improve the specific surface area of PTEF, so that the synergistic effect of PTEF, polyphenylene sulfide, graphite and polyphenyl ester can be further improved, and further the shaft sleeve material with better ageing resistance and smoothness is obtained.
In summary, the present application has the following beneficial effects:
1. the compound effect among the polyphenylene sulfide, the graphite and the polyphenyl ester is utilized to generate further synergistic effect with PTFE, so that the aging time of the shaft sleeve material is prolonged, meanwhile, the effect of good friction resistance and sealing performance is achieved, the polyphenyl sulfide effectively grows molecular chains under the high-temperature condition, entanglement is generated by mutual adsorption with the polyphenyl ester macromolecular chains, the friction resistance and sealing performance of the shaft sleeve material can be effectively improved, meanwhile, the entanglement degree of the two is increased by the lubricating characteristic of the graphite, and the PTFE is effectively and cooperatively matched by the compound of the three, so that the effect of reducing the flowing friction force and eddy current resistance of liquid in a pump and simultaneously reducing the electricity consumption is achieved, and the service life of the water pump is prolonged to a certain extent;
2. the iron-chromium-aluminum fiber with specific monofilament diameter is selected to perform the synergistic effect of specific weight proportion with cobalt aluminate, so that the rebound rate of the shaft sleeve material can be further improved, the application range and the service life of the water pump are effectively improved, and the water pump has great economic value.
Detailed Description
The present application is further described in detail below in connection with examples and comparative examples.
The raw materials used in the following examples and comparative examples are all commercially available products.
Examples
Examples 1 to 3
A high-sealing shaft sleeve material is prepared by the following steps:
step 1): PTFE, a reinforcing agent, polyphenylene sulfide, graphite and polyphenyl ester are added into a double-spiral conical mixer, the temperature is controlled at 380 ℃, the rotating speed is 900r/min, the mixture is mixed and stirred for 0.6h, and a substance A is formed after discharging;
step 2): placing the mixture A into an oven, heating to 200 ℃, preserving heat for 8 hours, closing a door, and naturally cooling to room temperature to obtain a substance B;
step 3): adding the substance B and 5kg of industrial alcohol into a double-screw conical mixer, mixing and stirring for 0.25h at the rotating speed of 1500r/min, heating to 35 ℃, and performing hot melting extrusion to form a blank.
Step 4): cutting the blank into the high-sealing shaft sleeve by a cutter.
Wherein, in the examples 1-3, the reinforcing agent adopts carbon black, and the particle size of PTEF is 55 μm-60 μm; the particle size of the polyphenylene sulfide is 120-130nm.
Table 1-specific amounts of raw material components (unit kg) in examples 1 to 3
Example 4
A high sealing sleeve material is different from example 3 in that the addition amount of polyphenylene sulfide is 10kg, graphite is 5kg and polystyrene ester is 20kg.
Example 5
A high sealing sleeve material is different from example 3 in that the addition amount of polyphenylene sulfide is 15kg, graphite is 5kg and polyphenyl ester is 15kg.
Example 6
A high sealing sleeve material is different from example 3 in that the particle size of polyphenylene sulfide is 70-80nm, and the water absorption rate is 0.03%.
Example 7
A high sealing sleeve material is different from example 5 in that graphite is replaced by equivalent amount of graphite fluoride, and the fluorine-carbon ratio of the graphite fluoride is less than or equal to 1.
Example 8
A high seal sleeve material differs from example 3 in that the carbon black is replaced with an equivalent amount of aluminum boride.
Example 9
A high seal sleeve material differs from example 3 in that the carbon black is replaced by an equivalent amount of silicon nitride.
Example 10
A high seal sleeve material differs from example 3 in that the carbon black is replaced with an equal amount of glass fibers.
Example 11
A high sealing sleeve material is different from example 3 in that the carbon black is replaced by equal amount of silicon nitride and glass fiber according to the proportion of 1:1.
Example 12
A high sealing sleeve material is different from the embodiment 5 in that the raw materials also comprise iron-chromium-aluminum fibers, and in the step 1), 4.8kg of iron-chromium-aluminum fibers are added together.
Example 13
A high sealing sleeve material is different from the embodiment 5 in that the raw materials also comprise iron-chromium-aluminum fibers, and 2.1kg of iron-chromium-aluminum fibers are added in the step 1).
Example 14
A high seal sleeve material differs from example 13 in that the raw material also comprises cobalt aluminate, and in step 1) cobalt aluminate with a mass of 1.4kg is added.
Example 15
A high seal sleeve material differs from example 13 in that the raw material also comprises cobalt aluminate, and in step 1) cobalt aluminate with a mass of 2.5kg is added.
Example 16
A high sealing sleeve material is different from example 15 in that the addition amount of iron-chromium-aluminum fiber is 3kg, and the addition amount of cobalt aluminate is 2.5kg.
Example 17
A high sealing sleeve material is different from example 15 in that the addition amount of iron-chromium-aluminum fiber is 4.5kg, and the addition amount of cobalt aluminate is 2.5kg.
Wherein, in examples 12-17, the filament diameter of the iron-chromium-aluminum fiber is 6 μm to 100 μm.
Example 18
A high sealing sleeve material is different from example 15 in that the filament diameter of the iron-chromium-aluminum fiber is 15-60 μm.
Example 19
A highly sealed sleeve material differs from example 15 in that the particle size of PTEF is 30 μm to 45. Mu.m.
Comparative example
Comparative example 1
The sleeve material of comparative example 1 was purchased from Teflon sleeve material having an inner diameter of 35mm and a thickness of 3mm, available from Jiangxi Aidaman sealing materials Co., ltd.
Comparative example 2
A high seal sleeve material differs from example 3 in that polyphenylene sulfide is replaced with an equivalent amount of carbon black.
Comparative example 3
A highly sealed sleeve material differs from example 3 in that graphite is replaced with an equivalent amount of carbon black.
Comparative example 4
A high seal sleeve material differs from example 3 in that the polystyrene ester is replaced with an equivalent amount of carbon black.
Comparative example 5
A high seal sleeve material differs from example 3 in that polyphenylene sulfide, graphite and polystyrene ester are replaced with equal amounts of carbon black.
Performance test
1) Burn-in test
The sleeve materials in examples 1-19 and comparative examples 1-5 were placed in an oven and stored at a constant temperature of 300 ℃ for 96 hours, and the tensile strength values before and after the sleeve material was treated were compared according to the test standard analysis of GB/T1040-92 plastic tensile property test method, and the smaller the change of the tensile strength values before and after the sleeve material was treated, the stronger the aging resistance of the sleeve material was shown.
2) Coefficient of friction test
According to the GB/T472-21 determination of rubber seat abrasion performance, the friction coefficients of the sleeve materials in examples 1-19 and comparative examples 1-5 were tested, and the lower the value of the friction coefficient, the better the smoothness of the sleeve material was indicated.
3) Seal rating test
According to GB/T4208-2017 housing protection rating, the seal rating of the sleeve material in examples 1-19 and comparative examples 1-5 was tested, and the higher the IP rating, the better the seal performance of the sleeve material.
4) Rebound testing
According to the GB/T1681-2009 determination of rebound resilience of vulcanized rubber, the rebound resilience of the sleeve materials in examples 1-19 and comparative examples 1-5 was measured, and the larger the value of the rebound coefficient was, the better the composite adhesion performance of the sleeve materials was.
Table 2-summary of the test data for examples 1-19 and comparative examples 1-5
As can be seen from comparison of the test data of the example 3 and the comparative example 1 in the table 2, compared with the existing commercially available shaft sleeve material, the shaft sleeve material prepared according to the technical scheme of the application has different improvements in terms of ageing resistance, smoothness, sealing performance and rebound rate, and the performance of the existing shaft sleeve material when being used in a water pump is effectively optimized, so that the purposes of prolonging the service life of the shaft sleeve material and reducing the energy consumption of the water pump are achieved; in addition, as shown by comparing the test data of the comparative example 3 with the test data of the comparative examples 2-5, if the synergistic cooperation of the polyphenylene sulfide, the graphite and the polyphenyl ester is destroyed in the system, the ageing resistance, the smoothness, the sealing performance and the re-lamination performance of the prepared shaft sleeve material are reduced to different degrees, which indicates that the three are indispensable, so that the precondition of improving the performance of the shaft sleeve material is that the synergistic cooperation of the three is needed, and the more effective synergistic effect on the water pump is obtained.
According to comparison of test data of examples 3 to 5 in table 2, after the inventor controls the proportion of polyphenylene sulfide, graphite and polyphenyl ester, the tensile strength of the shaft sleeve material after aging treatment can be greatly improved, the friction coefficient can be further reduced, and meanwhile, the sealing grade and the rebound rate of the shaft sleeve material can be effectively improved, so that the service life of the shaft sleeve material in the water pump can be further prolonged, and the purpose of reducing the energy consumption and the noise of the water pump can be achieved through the improvement of the smoothness of the shaft sleeve material.
According to the comparison of the test data of examples 5 and 6 in table 2, when the inventor adopts polyphenylene sulfide with specific particle size and water absorption rate for addition, the ageing resistance and smoothness of the shaft sleeve material can be further enhanced, so that the service life and application range of the shaft sleeve material are more effectively improved.
According to the comparison of the test data of examples 5 and 7 in table 2, when the inventor uses graphite fluoride to replace graphite for addition, the ageing resistance, smoothness, sealing performance and laminating performance of the shaft sleeve material can be obviously enhanced to a greater extent, so that the service life and application range of the shaft sleeve material prepared by the method can be improved, and the shaft sleeve material has great economic value.
According to comparison of test data of examples 3 and 8-10 in table 2, when the inventor selects different substances to replace carbon black for adding, the ageing resistance, smoothness and re-lamination performance of the shaft sleeve material can be further improved, so that the abrasion of water flow to the inside of the water pump can be better reduced, the service life of the water pump can be further improved to a certain extent, and in addition, according to the test data of example 11, the effect of the compounded silicon nitride and glass fiber is better.
According to comparison of test data of examples 5 and 12-13 in table 2, when the inventor adds iron-chromium-aluminum fibers with a weight ratio within a certain range of values into raw materials, ageing resistance and smoothness of the shaft sleeve material can be improved to a certain extent while the re-lamination performance of the shaft sleeve material can be greatly enhanced, so that the shaft sleeve material can be suitable for use under different working conditions, and the effect of prolonging the service life and the application range of the shaft sleeve material is achieved.
According to the comparison of the test data of examples 13-15 in Table 2, when the inventor adds cobalt aluminate with a weight ratio within a certain range of values into the raw materials, the compound bonding performance of the shaft sleeve material can be further effectively improved through compounding with the iron-chromium-aluminum fiber, so that the service life and the application range of the shaft sleeve material can be better improved.
According to comparison of test data of examples 15-17 in Table 2, when the inventor further controls the ratio of the compounded iron-chromium-aluminum fibers to the cobalt aluminate, the composite bonding performance, the ageing resistance and the smoothness of the shaft sleeve material can be improved more effectively, so that the synergistic effect of the shaft sleeve material in the water pump can be better exerted, and the purposes of reducing the energy consumption and the noise of the water pump are achieved.
According to comparison of test data of examples 17-19 in table 2, after the inventor selects iron-chromium-aluminum fiber with a monofilament diameter within a specific range and PTEF with a particle size, the composite bonding performance, ageing resistance and smoothness of the shaft sleeve material can be enhanced to different degrees, so that the service life and application range of the shaft sleeve material are further improved.
The present embodiment is merely illustrative of the present application and is not intended to be limiting, and those skilled in the art, after having read the present specification, may make modifications to the present embodiment without creative contribution as required, but is protected by patent laws within the scope of the claims of the present application.
Claims (7)
1. The high-sealing shaft sleeve material is characterized by being prepared from the following raw material components in parts by weight:
PTFE: 46-88 parts;
reinforcing agent: 5-16 parts;
polyphenylene sulfide: 4-15 parts;
graphite: 1.5 to 9.5 parts;
polyphenyl esters: 7-24 parts;
iron-chromium-aluminum fiber: 2.1 to 4.8 parts;
cobalt aluminate: 1.4-2.5 parts;
the weight ratio of the polyphenylene sulfide to the graphite to the polyphenyl ester is (2-3): 1: (3-4).
2. The high-sealing shaft sleeve material according to claim 1, wherein the polyphenylene sulfide is nano-scale, and the water absorption rate of the polyphenylene sulfide is less than or equal to 0.03%.
3. The high sealing sleeve material according to claim 1, wherein the graphite is graphite fluoride, and the fluorine-carbon ratio of the graphite fluoride is less than or equal to 1.
4. The high seal bushing material of claim 1 wherein said reinforcing agent is one or both of aluminum boride, silicon nitride and fiberglass.
5. The high seal sleeve material according to claim 1, wherein the weight ratio of the iron-chromium-aluminum fibers to the cobalt aluminate is (1.2-1.8): 1.
6. a high seal sleeve material according to claim 1, wherein said ferro-chrome-aluminium fibres have a monofilament diameter of 15 μm-60 μm.
7. A high seal bushing material according to claim 1, wherein the particle size of the PTEF is 30 μm-45 μm.
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| CN1260486C (en) * | 2002-10-10 | 2006-06-21 | 嘉善长盛滑动轴承有限公司 | Self-bubricating lead-free bearing and manufacture method thereof |
| RU2508202C2 (en) * | 2009-08-10 | 2014-02-27 | Сэнт-Гобен Перформанс Пластикс Корпорейшн | Fluorocarbon polymer protective sheet containing powder filler |
| CN108757784B (en) * | 2018-05-04 | 2020-10-02 | 中南大学 | Weather-resistant high-metal friction plate for military vehicle and preparation method thereof |
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