CN114350039A - Supercharger sealing ring and preparation method thereof - Google Patents
Supercharger sealing ring and preparation method thereof Download PDFInfo
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- CN114350039A CN114350039A CN202111638852.XA CN202111638852A CN114350039A CN 114350039 A CN114350039 A CN 114350039A CN 202111638852 A CN202111638852 A CN 202111638852A CN 114350039 A CN114350039 A CN 114350039A
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Abstract
The invention relates to the technical field of sealing, in particular to a supercharger sealing ring and a preparation method thereof, wherein the preparation raw materials comprise 100-300 parts of nitrile rubber, 80-130 parts of fluororubber, 60-125 parts of carbon black, 30-60 parts of barium sulfate, 30-45 parts of talcum powder, 20-45 parts of graphene, 15-26 parts of magnesium oxide, 6-14 parts of magnesium stearate, 5-30 parts of anti-aging agent and 15-50 parts of vulcanizing agent. According to the invention, the raw material components and the preparation process of the supercharger sealing ring are optimized, so that various performances of the supercharger sealing ring material are greatly improved.
Description
Technical Field
The invention relates to the technical field of sealing, in particular to a sealing ring of a supercharger and a preparation method thereof.
Background
The turbocharger is actually an air compressor that increases the intake air amount by compressing air. The engine uses the inertia impulse force of the exhaust gas from the engine to push the turbine in the turbine chamber, the turbine drives the coaxial impeller, the impeller presses the air sent by the air filter pipeline, and the air is pressurized and enters the cylinder. When the rotating speed of the engine is increased, the exhaust gas exhaust speed and the rotating speed of the turbine are also increased synchronously, the impeller compresses more air to enter the air cylinder, the pressure and the density of the air are increased, more fuel can be combusted, and the output power of the engine can be increased by correspondingly increasing the fuel quantity and adjusting the rotating speed of the engine. Unlike mechanical supercharging, turbocharging does not consume engine power and can easily increase the power of the original engine by more than 40%. Therefore, on the premise of not greatly changing the size of the original engine, the strengthening degree of the engine can be effectively improved by using the turbocharging technology, so that the turbocharging technology becomes an important technical measure for improving the power per liter and the power density of the engine.
The rubber sealing ring is an annular cover consisting of one or more parts and is fixed on a ferrule or a gasket of the bearing to play a role in sealing. The common rubber sealing ring can be divided into the following parts according to the material: silicone rubber series, fluororubber series, polytetrafluoroethylene series, nitrile rubber series, chlorobutyronitrile series, and ethylene propylene diene monomer series. The product is defective. The common failure modes of the rubber sealing ring are aging failure and mechanical failure, wherein the aging failure refers to the reduction of the elasticity, the strength and the anti-swelling property of the sealing ring or the stickiness, the hardening and the embrittlement of the sealing ring caused by heat, light, high-energy radiation, oxidation and biodegradation. The mechanical failure refers to instantaneous fracture, fatigue fracture, creep fracture, environmental stress cracking, abrasion and wear of the sealing ring under load. The currently used rubber sealing rings generally have the defects of easy aging and poor mechanical property, have short service life and need to be further improved.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a supercharger sealing ring and a preparation method thereof, and the supercharger sealing ring and the preparation method thereof
In order to achieve the technical effect, the invention adopts the following technical scheme:
in a first aspect, the invention provides a supercharger sealing ring, which is prepared from the following raw materials:
nitrile rubber, fluororubber, carbon black, barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate, an anti-aging agent and a vulcanizing agent.
Further, the supercharger sealing ring is prepared from the following raw materials in parts by mass: 100-300 parts of nitrile rubber, 80-130 parts of fluororubber, 60-125 parts of carbon black, 30-60 parts of barium sulfate, 30-45 parts of talcum powder, 20-45 parts of graphene, 15-26 parts of magnesium oxide, 6-14 parts of magnesium stearate, 5-30 parts of anti-aging agent and 15-50 parts of vulcanizing agent.
Furthermore, the supercharger sealing ring is characterized by being prepared from the following raw materials in parts by mass: 140 parts of nitrile rubber, 110 parts of fluororubber, 85 parts of carbon black, 42 parts of barium sulfate, 32 parts of talcum powder, 32 parts of graphene, 17 parts of magnesium oxide, 8 parts of magnesium stearate, 17 parts of anti-aging agent and 35 parts of vulcanizing agent.
Further, the vulcanizing agent is one or more of sulfur, 2-mercaptobenzothiazole, N' -m-phenylene bismaleimide and peroxide
Furthermore, the anti-aging agent is one or more of a light stabilizer, a heat stabilizer, an anti-ultraviolet agent, an antioxidant and a rubber anti-aging agent.
Preferably, the aging inhibitor is any one or combination of N-phenyl-N '-cyclohexyl-p-phenylenediamine, N-phenyl-2-naphthylamine and N-phenyl-N' -isopropyl-p-phenylenediamine.
In a second aspect, the invention further provides a preparation method of the supercharger sealing ring, which specifically comprises the following steps:
s1: mixing nitrile rubber, fluororubber and carbon black in proportion for a first-stage mixing to obtain P1;
s2: firstly, mixing barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, then adding P1 and a vulcanizing agent, mixing and carrying out secondary mixing to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing through an injection molding method by using P2.
Further, the mixing temperature of the S1 is 150-160 ℃.
Further, the mixing temperature of the S2 is 205-210 ℃.
Compared with the prior art, the invention has the beneficial effects that: according to the supercharger sealing ring provided by the invention, the fluororubber is added into the nitrile rubber for mixing, and the filler is improved, so that the oil resistance and the heat resistance of the nitrile rubber/fluororubber material are greatly improved, and the performance requirements for preparing the supercharger sealing ring are met.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby. It is to be noted that the experimental methods described in the following embodiments are all conventional methods unless otherwise specified, and the reagents and materials are commercially available unless otherwise specified.
Example 1
The embodiment provides a supercharger sealing ring, which comprises the following raw materials in formula:
100 parts of nitrile rubber, 80 parts of fluororubber, 60 parts of carbon black, 30 parts of barium sulfate, 30 parts of talcum powder, 20 parts of graphene, 15 parts of magnesium oxide, 6 parts of magnesium stearate, 2 parts of N-phenyl-2-naphthylamine, 3 parts of N-phenyl-N '-isopropyl-p-phenylenediamine, 5 parts of sulfur and 10 parts of N, N' -m-phenylene bismaleimide.
The preparation method comprises the following steps:
s1: mixing the nitrile rubber, the fluororubber and the carbon black in proportion for a first-stage mixing, controlling the mixing temperature to be 150-160 ℃, and discharging for 10-15min to obtain P1;
s2: firstly, blending barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 5min, adding P1 and a vulcanizing agent for secondary mixing when the temperature is raised to 210 ℃, controlling the secondary mixing temperature at 205-210 ℃, mixing for 3h, and discharging to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 2
The embodiment provides a supercharger sealing ring, which comprises the following raw materials in formula:
120 parts of nitrile rubber, 130 parts of fluororubber, 76 parts of carbon black, 45 parts of barium sulfate, 31 parts of talcum powder, 32 parts of graphene, 20 parts of magnesium oxide, 7 parts of magnesium stearate, 5 parts of N-phenyl-2-naphthylamine, 14 parts of N-phenyl-N '-isopropyl-p-phenylenediamine, 8 parts of sulfur and 17 parts of N, N' -m-phenylene bismaleimide.
The preparation method comprises the following steps:
s1: mixing the nitrile rubber, the fluororubber and the carbon black in proportion for a first-stage mixing, controlling the mixing temperature to be 150-160 ℃, and the mixing time to be 13min to obtain P1;
s2: firstly, blending barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 8min, adding P1 and a vulcanizing agent for secondary mixing when the temperature is raised to 210 ℃, controlling the secondary mixing temperature at 205-210 ℃, and mixing for 3h to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 3
The embodiment provides a supercharger sealing ring, which comprises the following raw materials in formula:
140 parts of nitrile rubber, 110 parts of fluororubber, 85 parts of carbon black, 42 parts of barium sulfate, 32 parts of talcum powder, 32 parts of graphene, 17 parts of magnesium oxide, 8 parts of magnesium stearate, 8 parts of N-phenyl-N '-cyclohexyl p-phenylenediamine, 9 parts of N-phenyl-2-naphthylamine, 15 parts of sulfur and 20 parts of N, N' -m-phenylene bismaleimide.
The preparation method comprises the following steps:
s1: mixing the nitrile rubber, the fluororubber and the carbon black in proportion for a first-stage mixing, controlling the mixing temperature to be 150-160 ℃, and the time to be 10-15min to obtain P1;
s2: firstly, blending barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 5-10min, heating to 210 ℃, adding P1 and a vulcanizing agent for secondary mixing, controlling the secondary mixing temperature at 205-210 ℃, and mixing for 3h to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 4
The embodiment provides a supercharger sealing ring, which comprises the following raw materials in formula:
300 parts of nitrile rubber, 60-125 parts of carbon black, 30-60 parts of barium sulfate, 30-45 parts of talcum powder, 20-45 parts of graphene, 15-26 parts of magnesium oxide, 6-14 parts of magnesium stearate, 8 parts of N-phenyl-N '-cyclohexyl p-phenylenediamine, 9 parts of N-phenyl-2-naphthylamine, 15 parts of sulfur and 20 parts of N, N' -m-phenylene bismaleimide. .
The preparation method comprises the following steps:
s1: mixing the nitrile rubber, the fluororubber and the carbon black in proportion for a first-stage mixing, controlling the mixing temperature to be 150-160 ℃, and the time to be 10-15min to obtain P1;
s2: firstly, blending barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 5-10min, heating to 210 ℃, adding P1 and a vulcanizing agent for secondary mixing, controlling the secondary mixing temperature at 205-210 ℃, and mixing for 3h to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 5
The present embodiment provides a seal ring for a supercharger as a first control product in embodiments 1 to 4, and the seal ring comprises the following raw material formula:
250 parts of nitrile rubber, 120 parts of carbon black, 42 parts of barium sulfate, 32 parts of talcum powder, 32 parts of graphene, 17 parts of magnesium oxide, 8 parts of magnesium stearate, 8 parts of N-phenyl-N '-cyclohexyl p-phenylenediamine, 9 parts of N-phenyl-2-naphthylamine, 15 parts of sulfur and 20 parts of N, N' -m-phenylene bismaleimide.
The preparation method comprises the following steps:
s1: mixing the nitrile rubber and the carbon black according to the proportion for one-stage mixing, controlling the mixing temperature to be 150-;
s2: firstly, blending barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 5-10min, heating to 210 ℃, adding P1 and a vulcanizing agent for secondary mixing, controlling the secondary mixing temperature at 205-210 ℃, and mixing for 3h to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 6
The present embodiment provides a seal ring for a supercharger as a second control product in embodiments 1 to 4, and the seal ring comprises the following raw material formula:
140 parts of nitrile rubber, 110 parts of fluororubber, 120 parts of carbon black, 52 parts of talcum powder, 32 parts of graphene, 37 parts of magnesium oxide, 8 parts of N-phenyl-N '-cyclohexyl p-phenylenediamine, 9 parts of N-phenyl-2-naphthylamine, 15 parts of sulfur and 20 parts of N, N' -m-phenylene bismaleimide.
The preparation method comprises the following steps:
s1: mixing the nitrile rubber, the fluororubber and the carbon black in proportion for a section of mixing, controlling the mixing temperature to be 150-160 ℃, and the time to be 10-15min to obtain P1;
s2: firstly, blending talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, wherein the mixing temperature is 100-130 ℃, after mixing for 5-10min, adding P1 and a vulcanizing agent for secondary mixing after heating to 210 ℃, controlling the secondary mixing temperature at 205-210 ℃, and mixing for 3h to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing the P2 through an injection molding method, and the size of the sealing ring is 200mm by 22 mm.
Example 7
The rubber rings prepared in examples 1-4 were tested, and the rubber rings prepared in examples 1-4 were identified as sample 1-4, and the rubber rings prepared in examples 5-6 were identified as sample 5-6, respectively, with the test results shown in table 1:
table 1: results of Performance testing of samples 1 to 4
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims. The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.
Claims (8)
1. The sealing ring of the supercharger is characterized by being prepared from the following raw materials:
nitrile rubber, fluororubber, carbon black, barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate, an anti-aging agent and a vulcanizing agent.
2. The seal ring of the supercharger according to claim 1, which is prepared from the following raw materials in parts by mass: 100-300 parts of nitrile rubber, 80-130 parts of fluororubber, 60-125 parts of carbon black, 30-60 parts of barium sulfate, 30-45 parts of talcum powder, 20-45 parts of graphene, 15-26 parts of magnesium oxide, 6-14 parts of magnesium stearate, 5-30 parts of anti-aging agent and 15-50 parts of vulcanizing agent.
3. The seal ring of the supercharger according to claim 1, which is prepared from the following raw materials in parts by mass: 140 parts of nitrile rubber, 110 parts of fluororubber, 85 parts of carbon black, 42 parts of barium sulfate, 32 parts of talcum powder, 32 parts of graphene, 17 parts of magnesium oxide, 8 parts of magnesium stearate, 17 parts of anti-aging agent and 35 parts of vulcanizing agent.
4. A booster seal ring as claimed in claim 1, wherein: the vulcanizing agent is one or more of sulfur, 2-thiol benzothiazole, N' -m-phenylene bismaleimide and peroxide.
5. A booster seal ring as claimed in claim 1, wherein: the anti-aging agent is any one or combination of more of N-phenyl-N '-cyclohexyl-p-phenylenediamine, N-phenyl-2-naphthylamine and N-phenyl-N' -isopropyl-p-phenylenediamine.
6. The method for preparing a seal ring of a supercharger according to claim 1, comprising the steps of:
s1: mixing nitrile rubber, fluororubber and carbon black in proportion for a first-stage mixing to obtain P1;
s2: firstly, mixing barium sulfate, talcum powder, graphene, magnesium oxide, magnesium stearate and an anti-aging agent according to a ratio, then adding P1 and a vulcanizing agent, mixing and carrying out secondary mixing to obtain P2;
s3: the ring-shaped sealing ring is prepared by processing through an injection molding method by using P2.
7. The method for preparing a seal ring of a supercharger according to claim 6, wherein the method comprises the following steps: the mixing temperature of the S1 is 150-160 ℃.
8. The method for preparing a seal ring of a supercharger according to claim 6, wherein the method comprises the following steps: the mixing temperature of the S2 is 205-210 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111638852.XA CN114350039A (en) | 2021-12-29 | 2021-12-29 | Supercharger sealing ring and preparation method thereof |
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| CN202111638852.XA CN114350039A (en) | 2021-12-29 | 2021-12-29 | Supercharger sealing ring and preparation method thereof |
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| CN114350039A true CN114350039A (en) | 2022-04-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114805965A (en) * | 2022-04-28 | 2022-07-29 | 绍兴华运输送设备有限公司 | Permanent compression resistant sealing ring for carrier roller and preparation method thereof |
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2021
- 2021-12-29 CN CN202111638852.XA patent/CN114350039A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114805965A (en) * | 2022-04-28 | 2022-07-29 | 绍兴华运输送设备有限公司 | Permanent compression resistant sealing ring for carrier roller and preparation method thereof |
| CN114805965B (en) * | 2022-04-28 | 2023-09-05 | 绍兴华运输送设备有限公司 | Permanent compression-resistant sealing ring for carrier roller and preparation method thereof |
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