CN114957889A - Wear-resistant material and wear-resistant part for carbon tank valve of automobile oil tank, preparation process and application - Google Patents
Wear-resistant material and wear-resistant part for carbon tank valve of automobile oil tank, preparation process and application Download PDFInfo
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- CN114957889A CN114957889A CN202210003947.2A CN202210003947A CN114957889A CN 114957889 A CN114957889 A CN 114957889A CN 202210003947 A CN202210003947 A CN 202210003947A CN 114957889 A CN114957889 A CN 114957889A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention relates to the technical field of opening and closing of automobile carbon tank valves, in particular to an anti-wear material and an anti-wear part for an automobile oil tank carbon tank valve, and a preparation process and application thereof. The wear-resistant material consists of the following components in parts by weight: polytetrafluoroethylene: 60-80% of fiber and 10-30% of fiber; organic powder: 5 to 15 percent. According to the invention, the abrasion between the carbon tank valve and the silica gel sheet is reduced by changing the composition of the core material of the carbon tank valve, so that the abrasion resistance times between the carbon tank valve and the silica gel sheet are increased from 5000 ten thousand times to 2 hundred million times, and the service life of the carbon tank valve is prolonged from 6 years to 15 years.
Description
Technical Field
The invention relates to the technical field of opening and closing of automobile carbon tank valves, in particular to an anti-wear material and an anti-wear part for an automobile oil tank carbon tank valve, and a preparation process and application thereof.
Background
The carbon tank control valve on the automobile oil tank is used for controlling the flow of the regeneration airflow, introducing oil vapor into the air inlet manifold and realizing the regeneration of the activated carbon by utilizing the airflow. Carbon canisters are part of the gasoline evaporation control system (EVAP) introduced to avoid fuel vapors escaping into the atmosphere after engine shut-down, and since 1995, our country mandates that all new delivery vehicles must have this system. The carbon tank control valve consists of an electromagnetic coil, an armature, a valve and the like. According to different working conditions of the engine, the electronic controller changes the duty ratio of the pulse signal transmitted to the electromagnetic coil, so that the opening degree of the valve is changed. In addition, the flow of gas through the canister control valve is also affected by the pressure differential across the valve.
The carbon tank valve is characterized in that a silica gel sheet is arranged at the opening of the airflow circulation of the carbon tank valve, and the silica gel sheet and the valve core of the carbon tank valve are pushed to open and close by airflow pressure, so that frequent friction can be generated between the silica gel sheet and the contact surface of the carbon tank valve. The existing carbon tank valve is prepared from PA66 material, the hardness of the material is far greater than that of a silica gel sheet, so that after the two materials are rubbed, the silica gel with relatively low hardness is abraded to a greater extent and gradually becomes granular to be peeled off, when the silica gel sheet is abraded seriously, the silica gel sheet cannot normally work, the air pressure of an oil tank is too high, an alarm is generated, and the existing carbon tank valve and the silica gel need to be replaced when the friction is less than 5000 ten thousand times.
Therefore, there is an urgent need for an abrasion resistant member for a canister valve of an automobile fuel tank.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an anti-wear material and an anti-wear part for a carbon tank valve of an automobile oil tank, a preparation process and application thereof, and aims to solve the problems related to the background technology.
The technical scheme adopted by the invention for realizing the purpose is as follows: an abrasion-resistant material for a carbon canister valve of an automobile fuel tank, the abrasion-resistant material consisting of, in weight fractions:
polytetrafluoroethylene: 60 to 80 percent of the total weight of the mixture,
10-30% of fiber;
organic powder: 5 to 15 percent.
Further, the fiber is glass fiber and/or carbon fiber;
the organic powder is graphite and/or molybdenum disulfide;
the diameter of the fiber is within 20 μm.
Further, the abrasion-resistant material consists of the following components in specific weight fractions:
polytetrafluoroethylene: 70 percent of the total weight of the mixture,
10% of glass fiber;
10% of carbon fiber;
5% of graphite;
5 percent of molybdenum disulfide.
The invention also comprises an anti-wear component for a carbon tank valve of an automobile fuel tank, the anti-wear component being prepared from the anti-wear material,
the anti-abrasion part comprises a columnar body and a columnar through hole arranged at the central shaft of the body, wherein any annular end of the body is provided with an anti-abrasion surface, and the other annular end of the body is provided with a fixing groove.
Furthermore, a stepped groove for preventing vortex is arranged between the anti-abrasion surface and the peripheral side wall of the body;
the fixed slot is the ring shape, still be equipped with on the week lateral wall of fixed slot and be used for preventing rotatory circumference groove.
The invention also comprises a process for preparing an anti-wear part for a carbon canister valve of a fuel tank of a motor vehicle, the anti-wear part being prepared from the anti-wear material, or having the structure,
the preparation process comprises the following steps:
(1) mixing raw materials: mechanically mixing polytetrafluoroethylene, glass fiber, carbon fiber, graphite and molybdenum disulfide uniformly according to a proportion;
(2) compression molding: adding the mixed raw materials into a forming die, closing the die, putting the die into a press, slowly increasing the pressure to a set pressure, keeping the pressure for a plurality of minutes, slowly releasing the pressure, and demoulding to obtain a blank;
(3) machining: the abrasive surface is mechanically ground until the surface is smooth.
Further, the wear-resistant surface is mechanically polished to Ra < 1.6.
Further, in the step (2), the pressing pressure time is 4MPa and 10 min.
The invention also includes the use of an anti-wear component made according to the above anti-wear material, or having the above structure, or made according to the above process, for use in automotive fuel tank systems.
Furthermore, the anti-abrasion part is arranged at the valve core of the carbon tank valve of the oil tank and is used for being matched with the silica gel sheet to jointly control the opening and closing of the carbon tank valve.
The invention is used for the wear-resistant material and wear-resistant part of the carbon tank valve of the automobile oil tank, and the preparation process and the application have the beneficial effects that:
according to the invention, the abrasion between the carbon tank valve and the silica gel sheet is reduced by changing the composition of the core material of the carbon tank valve, so that the abrasion resistance times between the carbon tank valve and the silica gel sheet are increased from 5000 ten thousand times to 2 hundred million times, and the service life of the carbon tank valve is prolonged from 6 years to 15 years.
Drawings
FIG. 1 is an electron microscope view of a wear-resistant surface of a wear-resistant member according to an embodiment of the present invention;
FIG. 2 is an electron microscope view of the wear surface of the wear resistant member of the embodiment of the present invention;
FIG. 3 is an electron microscope view of the wear surface of the wear resistant member of an embodiment of the present invention;
fig. 4 is a perspective view of a wear resistant member according to an embodiment of the present invention;
FIG. 5 is a schematic bottom view of a wear resistant component according to an embodiment of the present invention;
FIG. 6 is a schematic view of the A-A configuration of a wear resistant component according to an embodiment of the present invention;
FIG. 7 is a schematic view of the B-B structure of a wear resistant member according to an embodiment of the present invention;
FIG. 8 is a schematic view of a sectional structure of the abrasion resistant member, the valve element, and the silicone sheet according to the embodiment of the present invention;
FIG. 9 is a graph showing the results of a rotational wear test in example 1 of the present invention;
FIG. 10 is a graph showing the results of the vibration abrasion test in example 1 of the present invention;
description of the figures:
the anti-abrasion valve comprises a body 1, a cylindrical through hole 2, an anti-abrasion surface 3, a fixing groove 4, a stepped groove 5, a circumferential groove 6, an anti-abrasion part 7, a valve core 8 and a silica gel sheet 9.
Detailed Description
The invention is further explained in detail with reference to the drawings and the specific embodiments;
example 1:
an abrasion resistant material for an automotive fuel tank canister valve, the abrasion resistant material consisting of, in weight fractions:
polytetrafluoroethylene: 70 percent of the total weight of the mixture,
10% of glass fiber;
10% of carbon fiber;
5% of graphite;
5% of molybdenum disulfide.
The invention also comprises an anti-wear component for a carbon tank valve of an automobile fuel tank, the anti-wear component being prepared from the anti-wear material,
the anti-abrasion part comprises a columnar body 1 and a columnar through hole 2 arranged at the central shaft of the body 1, wherein any annular end of the body 1 is provided with an anti-abrasion surface 3, and the other annular end of the body 1 is provided with a fixing groove 4. A stepped groove 5 for preventing vortex is arranged between the anti-abrasion surface 3 and the peripheral side wall of the body 1; the fixing groove 4 is in a ring shape, and a circumferential groove 6 for preventing rotation is further arranged on the circumferential side wall of the fixing groove 4. The abrasion resistant member needs to be fixed inside the valve core housing of the canister valve by injection molding, and the fixing groove 4 is used for reinforcing the bonding force between the abrasion resistant member and the canister valve housing. The effort between case and the silica gel piece 9 includes the ascending vibrational force of vertical side and the ascending torsion of horizontal direction, circumference fixed force between 6 multiplicable anti-wear component of circumference groove and the carbon tank valve case shell, the axial fixity power between 5 multiplicable anti-wear component 7 of notch cuttype recess and the carbon tank valve case 8 shell, furthermore, because when moulding plastics, wear-resisting surface 3 down, mould plastics from the upper portion of carbon tank valve case shell, consequently can produce the vortex in the periphery side department of anti-wear component, some gas can't be got rid of, the bubble appears, influence the fastness that anti-wear component is fixed, the emergence of vortex phenomenon can be avoided in notch cuttype recess 5's setting, increase fixed firmness. Fig. 1-3 are surface electron micrographs of the wear-resistant surface. Fig. 4-7 are schematic views of the construction of the wear resistant member; fig. 8 is a combined structure view of the abrasion resistant member and the silicone sheet.
Abrasion test of abrasion resistant parts:
first, rotation abrasion test
1. Experimental equipment: vertical friction wear testing machine
2. Experimental materials: the opposite grinding surface is a silica gel sample, and the test sample is an abrasion-resistant part
3. Principle and method of experiment
The testing machine enables the silica gel sample arranged on the upper main shaft to synchronously rotate by rotating the sample shaft through the motor. The wear-resistant surface of the wear-resistant part is fixed on the test platform, the test load directly acts on two pairs of grinding samples through the upper main shaft, friction force is generated between the two samples, the surfaces of the grinding samples are abraded in different degrees under the action of the friction force for a long time, and the wear resistance of the material is evaluated by measuring the change condition of the quality of the materials.
4. Experimental procedure
4.1 weighing of the wear-resistant parts
4.2 the silica gel sample and the abrasion-resistant part are respectively arranged on the upper main shaft and the lower main shaft of the testing machine through clamps
4.3 adjusting the balance of the sample and applying a test load of 500N
4.4 starting the motor, adjusting the rotating speed to 1000r/min, and starting the experiment.
4.5 after the experiment is finished, measuring the abrasion loss and processing data.
5. Discussion of Experimental data and results
As shown in Table 1, the wear test data of the PTFE sample shows that the amount of wear of the PTFE sample piece reached 10000 hours, which was 4.22%. The trend of the wear amount of the PTFE sample with wear time is shown in fig. 9.
TABLE 1 data of amount of wear and tear of rotational friction
Second, vibration abrasion test
1. Experimental equipment: vibration wear simulation testing machine
2. Experimental materials: the test specimens being wear-resistant parts
3. Principle and method of experiment
The vibration of the test sample on the main shaft directly acts on the test sample, so that friction force is generated between the two test samples, the surface of the ground test sample can be abraded in different degrees under the action of the friction force for a long time, and the abrasion resistance of the material is evaluated by measuring the change condition of the quality of the material.
4. Experimental procedure
4.1 weighing of the test specimens for the quality of the abrasion resistant parts
4.2 installing the abrasion-resistant parts on the main shaft of the testing machine through the clamps respectively
4.3, adjusting the balance of the sample, starting a motor, adjusting the rotating speed to be 6Hz, and starting the experiment.
4.4 after the experiment, measuring the abrasion loss and processing the data.
The wear test data of the PTFE sample is shown in table 2, and the wear amount of the PTFE sample was 1.22% when the wear time reached 20000 ten thousand times. The trend of the wear amount of the PTFE sample with wear time is shown in fig. 10.
TABLE 2 data of vibration friction wear amount and wear time
The wear-resistant part of the traditional carbon tank valve of the automobile oil tank is made of PA66 material, and the hardness of the PA66 material is high, so when the wear-resistant part rubs with a silica gel sheet, the PA66 material with high hardness easily rubs the softer silica gel material into silica gel particles and peels off.
The invention adopts the PTEE material with low friction coefficient and self-lubricating property, and can not generate adhesion effect when contacting with the silica gel, although the hardness of the PTEE material is reduced relative to PA66, the hardness is still higher relative to the silica gel sheet of the friction surface, and the silica gel particles can still be peeled off. The specific microscopic process is as follows: the surfaces of the silica gel sheet and the PTEE have groove-shaped holes, and in the process of mutual friction of the silica gel sheet and the PTEE, the two components are peeled off and enter the holes of the other side, however, the abrasion degree of the silica gel is still larger than that of the PTEE, and the service life of the carbon tank valve cannot be ensured.
After the PTEE material is added with the composite soft organic matter powdery particles, the hardness degree of the surface of the material can be balanced, the abrasion of a silica gel surface is reduced, in addition, the fiber with the diameter within 20 micrometers can improve the wear resistance of the material, and meanwhile, the diameter of the fiber cannot be overlarge, so that the fiber can fall into the gaps of silica gel sheets even if the fiber is peeled off after being abraded, and the abrasion to the silica gel sheets is reduced. The specific microscopic process is as follows: in the friction process, the PTEE, the organic powder, the fiber and the silica gel particles are all peeled off, wherein the organic powder of the graphite and the molybdenum disulfide is flaky particles, the hardness is lower, the lubrication performance of the PTEE is added, the abrasion peeling of the silica gel is reduced, the components of the contact surfaces of the graphite and the molybdenum disulfide gradually tend to be consistent in the abrasion process, the abrasion of the contact surfaces of the graphite and the molybdenum disulfide is reduced, and the service life of the carbon tank valve is prolonged.
Example 2:
the invention also comprises a preparation process of the anti-abrasion part for the carbon tank valve of the automobile fuel tank, the anti-abrasion part is prepared by the anti-abrasion material or has the structure,
the preparation process comprises the following steps:
(1) mixing raw materials: mechanically mixing polytetrafluoroethylene, glass fiber, carbon fiber, graphite and molybdenum disulfide uniformly according to a proportion;
(2) compression molding: adding the mixed raw materials into a forming die, closing the die, putting the die into a press, slowly increasing the pressure to a set pressure, keeping the pressure for a plurality of minutes, slowly releasing the pressure, and demoulding to obtain a blank; the pressing pressure time is 4MPa and 10 min.
(3) Machining: the abrasive surface is mechanically ground to a surface Ra < 1.6.
The preparation process of the carbon pipe valve core comprises the following steps:
(1) placing the wear resistant surface of the wear resistant member 7 facing downwards on the bottom of the mould;
(2) injecting molten PA66 material from the upper end of the mold;
(3) standing until PA66 is solidified, and demolding.
The prepared carbon tube valve core 8 has the wear-resistant surface exposed outside, and the rest part of the wear-resistant material is wrapped inside the valve core 8.
Example 3:
the invention also includes the use of an anti-wear component made according to the above anti-wear material, or having the above structure, or made according to the above process, for use in automotive fuel tank systems.
The abrasion-resistant part is arranged at the valve core of the carbon tank valve of the oil tank and used for being matched with the silica gel sheet to jointly control the opening and closing of the carbon tank valve.
Example 4:
an abrasion-resistant material for a carbon canister valve of an automobile fuel tank, the abrasion-resistant material consisting of, in weight fractions:
polytetrafluoroethylene: 60 percent of the total weight of the mixture,
15% of glass fiber;
15% of carbon fiber;
5% of graphite;
5% of molybdenum disulfide.
An abrasion resistant member was prepared from the abrasion resistant material of the above composition, and an abrasion test was conducted by using the method of example 1, and the abrasion amount of the PTFE sample block was 4.03% when the abrasion time of the rotational abrasion reached 10000 hours. When the wear time of the vibration wear reached 20000 ten thousand times, the wear amount of the PTFE sample was 1.20%.
Example 5:
an abrasion resistant material for an automotive fuel tank canister valve, the abrasion resistant material consisting of, in weight fractions:
polytetrafluoroethylene: 80 percent of the total weight of the mixture,
5% of glass fiber;
5% of carbon fiber;
5% of graphite;
5% of molybdenum disulfide.
An abrasion resistant member was prepared from the abrasion resistant material of the above composition, and an abrasion test was conducted by using the method of example 1, and the abrasion amount of the PTFE sample block was 4.12% when the abrasion time of the rotational abrasion reached 10000 hours. When the wear time of the vibration wear reached 20000 ten thousand times, the wear amount of the PTFE sample was 1.19%.
Example 6:
an abrasion-resistant material for a carbon canister valve of an automobile fuel tank, the abrasion-resistant material consisting of, in weight fractions:
polytetrafluoroethylene: 75 percent of the total weight of the mixture,
5% of glass fiber;
5% of carbon fiber;
5% of graphite;
10% of molybdenum disulfide.
The abrasion resistant material of the above composition was prepared as an abrasion resistant member, and by conducting an abrasion test by the method of example 1, the abrasion amount of the PTFE sample piece was 4.09% when the abrasion time of the rotational abrasion reached 10000 hours. When the wear time of the vibration wear reached 20000 ten thousand times, the wear amount of the PTFE sample was 1.15%.
Comparative example 1:
the wear-resistant material consists of the following components in parts by weight:
polytetrafluoroethylene: 100 percent of the total weight of the mixture,
0% of glass fiber;
0% of carbon fiber;
0% of graphite;
0% of molybdenum disulfide.
The wear-resistant material of the above composition is prepared as a wear-resistant member.
Comparative example 2:
the wear-resistant material consists of the following components in parts by weight:
polytetrafluoroethylene: 70 percent of the total weight of the mixture,
15% of glass fiber;
15% of carbon fiber;
0% of graphite;
0% of molybdenum disulfide.
The wear-resistant material of the above composition is prepared as a wear-resistant member.
Comparative example 3:
the wear-resistant material consists of the following components in parts by weight:
polytetrafluoroethylene: 70 percent of the total weight of the mixture,
0% of glass fiber;
0% of carbon fiber;
15% of graphite;
15% of molybdenum disulfide.
The wear-resistant material of the above composition is prepared as a wear-resistant member.
Table 3: example 1, comparative examples 1-3 amounts of wear resistant Material Components
Table 4: results of testing abrasion resistant materials of example 1 and comparative examples 1 to 3
As shown in table 4, the abrasion degree of comparative examples 1,2 and 3, which are pure PTEE, organic powder removed, and fiber removed, is significantly increased compared to example 1.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention accordingly, and not to limit the protection scope of the present invention accordingly. All equivalent changes or modifications made in accordance with the spirit of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. An abrasion-resistant material for a carbon canister valve of an automobile fuel tank, characterized in that the abrasion-resistant material consists of the following components in parts by weight:
polytetrafluoroethylene: 60 to 80 percent of the total weight of the mixture,
10-30% of fiber;
organic powder: 5 to 15 percent.
2. The soil matrix for mountain restoration according to claim 1, wherein:
the fibers are glass fibers and/or carbon fibers;
the organic powder is graphite and/or molybdenum disulfide;
the diameter of the fiber is within 20 μm.
3. The soil matrix for mountain restoration according to claim 2, wherein: the wear-resistant material consists of the following components in specific weight fractions:
polytetrafluoroethylene: 70 percent of the total weight of the mixture,
10% of glass fiber;
10% of carbon fiber;
5% of graphite;
5% of molybdenum disulfide.
4. An abrasion resistant member for an automobile tank canister valve, the abrasion resistant member being prepared from the abrasion resistant material according to any one of claims 1 to 3, characterized in that:
the anti-abrasion part comprises a columnar body and a columnar through hole arranged at the central shaft of the body, wherein any annular end of the body is provided with an anti-abrasion surface, and the other annular end of the body is provided with a fixing groove.
5. The wear resistant component of claim 4, wherein: a stepped groove for preventing vortex is arranged between the anti-abrasion surface and the peripheral side wall of the body;
the fixed slot is ring shape, still be equipped with on the week lateral wall of fixed slot and be used for preventing rotatory circumference groove.
6. A process for producing an anti-wear member for a canister valve of an automobile fuel tank, the anti-wear member being produced from the anti-wear material according to any one of claims 1 to 3 or having the structure according to any one of claims 4 to 5, characterized in that:
the preparation process comprises the following steps:
(1) mixing raw materials: mechanically mixing polytetrafluoroethylene, glass fiber, carbon fiber, graphite and molybdenum disulfide uniformly according to a proportion;
(2) compression molding: adding the mixed raw materials into a forming die, closing the die, putting the die into a press, slowly increasing the pressure to a set pressure, keeping the pressure for a plurality of minutes, slowly releasing the pressure, and demoulding to obtain a blank;
(3) machining: and mechanically polishing the abrasive surface until the surface is smooth.
7. The process of claim 6, wherein: and mechanically polishing the anti-abrasion surface until Ra is less than 1.6.
8. The process according to claim 6, characterized in that: in the step (2), the pressing pressure time is 4MPa and 10 min.
9. Use of a wear resistant component prepared from a wear resistant material according to any one of claims 1 to 3, or having a structure according to any one of claims 4 to 5, or prepared according to a process according to any one of claims 6 to 7, characterized in that: the wear resistant component is applied to an automotive fuel tank system.
10. Use according to claim 9, characterized in that: the abrasion-resistant part is arranged at the valve core of the carbon tank valve of the oil tank and used for being matched with the silica gel sheet to jointly control the opening and closing of the carbon tank valve.
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| CN202210003947.2A CN114957889A (en) | 2022-01-05 | 2022-01-05 | Wear-resistant material and wear-resistant part for carbon tank valve of automobile oil tank, preparation process and application |
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| CN202210003947.2A CN114957889A (en) | 2022-01-05 | 2022-01-05 | Wear-resistant material and wear-resistant part for carbon tank valve of automobile oil tank, preparation process and application |
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| CN101130613A (en) * | 2006-08-22 | 2008-02-27 | 沈阳气体压缩机股份有限公司 | Carbonaceous fibre filling polytetrafluoroethylene and method of producing the same |
| CN203146890U (en) * | 2013-03-07 | 2013-08-21 | 浙江牧雅阀门制造有限公司 | Wear-resistant ceramic ball valve |
| CN105822671A (en) * | 2015-01-23 | 2016-08-03 | 斯凯孚公司 | Rolling bearing comprising wear ring and related manufacture method |
| CN109486069A (en) * | 2018-12-18 | 2019-03-19 | 南京肯特复合材料股份有限公司 | Wear-resisting PTFE composite and preparation method thereof |
| CN209687987U (en) * | 2019-02-26 | 2019-11-26 | 磐石市星环阀片有限公司 | Wear-resistant valve block for automobile absorber |
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