CN110041586A - A kind of outside framework oil seal and its production technology - Google Patents
A kind of outside framework oil seal and its production technology Download PDFInfo
- Publication number
- CN110041586A CN110041586A CN201910200299.8A CN201910200299A CN110041586A CN 110041586 A CN110041586 A CN 110041586A CN 201910200299 A CN201910200299 A CN 201910200299A CN 110041586 A CN110041586 A CN 110041586A
- Authority
- CN
- China
- Prior art keywords
- parts
- oil seal
- outside framework
- framework oil
- plasticizer
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
- C08L15/005—Hydrogenated nitrile rubber
-
- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
Abstract
A kind of outside framework oil seal provided by the invention and its production technology, by selecting hydrogenated nitrile-butadiene rubber as sealing material, effectively increase the sealing performance of outside framework oil seal, there are the performances such as high tensile, Gao Lashen elongation, high-tear strength, weather-proof ozone simultaneously, improve the reliability of outside framework oil seal, it reduces the production cost simultaneously, simple process, reasonable raw material proportioning.
Description
Technical field
The present invention relates to rubber seal element technical field more particularly to a kind of outside framework oil seal and its production technologies.
Background technique
The superiority and inferiority of the sealing performance of oil sealing is strongly dependent on the performance of sealing material.Its lip when general oil sealing work
The temperature of edge is higher than 20 ~ 50 DEG C of working media temperature, should be noted that when selecting oil sealing material.Therefore, when selecting oil sealing material,
When compatibility of the material to working media, the adaptability to operating temperature range and antelabium must be taken into consideration to rotary shaft high speed rotation
Follow-up capability.Correct the selection of material is correct design, using the matter of utmost importance of oil sealing.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned problems, and a kind of outside framework oil seal and its production technology that propose, skeleton oil
Envelope uses suitable sealing material, improves its service performance, prolongs its service life.
To achieve the above object, the present invention provides a kind of outside framework oil seals, in parts by weight, are mainly prepared by following raw material
It forms:
100 parts of hydrogenated nitrile-butadiene rubber;
5-10 parts of activator;
45-60 parts of filler;
5-12 parts of plasticizer;
1-3 parts of crosslinking agent;
2-4 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
Preferably, the outside framework oil seal is mainly prepared from the following materials:
100 parts of hydrogenated nitrile-butadiene rubber;
5-8 parts of activator;
50-55 parts of filler;
5-10 parts of plasticizer;
1.5-3 parts of crosslinking agent;
2.5-3 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
The present invention also provides the production technologies of outside framework oil seal as described above, comprising the following steps:
S1. it is kneaded, comprising the following steps:
S11. hydrogenated nitrile-butadiene rubber is kneaded, obtains mixture A;
S12. after being kneaded mixture A, activator, filler, plasticizer, dumping, slice obtain rubber premixing glue;
S13. it after rubber premixing glue being plasticated, is kneaded with vulcanizing agent, crosslinking agent, dumping, slice;
S14. it takes piece to carry out curing curve and quantitative measurement with cold front heavy rain, after performance reaches requirement, goes to next step;
S2. preforming, it is carried out on precision performer, the film in step 1 is put into the barrel of precision performer
Booting carries out squeezing out adhesive tape or is cut into regulation character and weight while squeezing out as compound blank used in small dimension oil sealing;
S3. vulcanize, the metallic framework of preforming good adhesive tape or compound blank and surface treated coating adhesive is put into mold,
Pressurization, heating are once vulcanized on the single vulcanizer of electric heating, and the outside framework oil seal after primary vulcanization, which is put into insulating box, carries out two
Secondary vulcanization;
S4. lip and shock mount are cut, the outside framework oil seal through post-cure is cut on lip machine by product drawing vacuumizing oil sealing
It is cut into the lip internal diameter of regulation shape and predetermined size, then, loads onto the metal spring of prescribed material, size and value of thrust;
S5. it examines and bench test is sampled and carried out after loading onto inspection of the outside framework oil seal of spring by standard progress appearance and size
Bench simulation test, test are carried out on oil sealing field investigation platform, after carrying out reliability bench simulation test, are examined and are tested
Qualified outside framework oil seal factory is that user's installation uses.
Step S11, the mixing in S12 and S13 carries out in mixer, and melting temperature is 20-90 DEG C in step S11,
Melting temperature is 20-150 DEG C in step S12, and melting temperature is 70-100 DEG C in step S13;Dumping in step S12 and S13
It is carried out in mixer, the condition of dumping is that melting temperature reaches 140-150 DEG C in step S12, the item of dumping in step S13
Part is that melting temperature reaches 90-100 DEG C;Slice in step S12 and S13 carries out in open mill, and the roll spacing of open mill is 3-4
㎜。
Step S2 middle fuselage barrel temperature is 55-65 DEG C, and head and forming temperature are 70-80 DEG C.
The conditions of vulcanization once vulcanized in step S3 are as follows: 180 DEG C of temperature, the time 3 minutes, sulfide stress 5-10MPa;It is secondary
The conditions of vulcanization of vulcanization are as follows: 200 DEG C of temperature, time 16-20 hour.
Compared with prior art, the invention has the benefit that having by selecting hydrogenated nitrile-butadiene rubber as sealing material
Effect improves the sealing performance of outside framework oil seal, while having high tensile, Gao Lashen elongation, high-tear strength, weather-proof resistance to
The performances such as ozone improve the reliability of outside framework oil seal, reduce the production cost simultaneously, simple process, reasonable raw material proportioning.
Specific embodiment
To make to have further understanding to the purpose of the present invention, construction, feature and its function, hereby cooperate embodiment detailed
It is described as follows.
A kind of outside framework oil seal of the invention is mainly prepared from the following materials in parts by weight:
100 parts of hydrogenated nitrile-butadiene rubber;
5-10 parts of activator;
45-60 parts of filler;
5-12 parts of plasticizer;
1-3 parts of crosslinking agent;
2-4 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
Preferably, the outside framework oil seal is mainly prepared from the following materials:
100 parts of hydrogenated nitrile-butadiene rubber;
5-8 parts of activator;
50-55 parts of filler;
5-10 parts of plasticizer;
1.5-3 parts of crosslinking agent;
2.5-3 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
The present invention also provides the production technologies of outside framework oil seal as described above, comprising the following steps:
S1. it is kneaded, comprising the following steps:
S11. hydrogenated nitrile-butadiene rubber is kneaded, obtains mixture A;
S12. after being kneaded mixture A, activator, filler, plasticizer, dumping, slice obtain rubber premixing glue;
S13. it after rubber premixing glue being plasticated, is kneaded with vulcanizing agent, crosslinking agent, dumping, slice;
S14. it takes piece to carry out curing curve and quantitative measurement with cold front heavy rain, after performance reaches requirement, goes to next step;
S2. preforming, it is carried out on precision performer, the film in step 1 is put into the barrel of precision performer
Booting carries out squeezing out adhesive tape or is cut into regulation character and weight while squeezing out as compound blank used in small dimension oil sealing;
S3. vulcanize, the metallic framework of preforming good adhesive tape or compound blank and surface treated coating adhesive is put into mold,
Pressurization, heating are once vulcanized on the single vulcanizer of electric heating, and the outside framework oil seal after primary vulcanization, which is put into insulating box, carries out two
Secondary vulcanization;
S4. lip and shock mount are cut, the outside framework oil seal through post-cure is cut on lip machine by product drawing vacuumizing oil sealing
It is cut into the lip internal diameter of regulation shape and predetermined size, then, loads onto the metal spring of prescribed material, size and value of thrust;
S5. it examines and bench test is sampled and carried out after loading onto inspection of the outside framework oil seal of spring by standard progress appearance and size
Bench simulation test, test are carried out on oil sealing field investigation platform, after carrying out reliability bench simulation test, are examined and are tested
Qualified outside framework oil seal factory is that user's installation uses.
Step S11, the mixing in S12 and S13 carries out in mixer, and melting temperature is 20-90 DEG C in step S11,
Melting temperature is 20-150 DEG C in step S12, and melting temperature is 70-100 DEG C in step S13;Dumping in step S12 and S13
It is carried out in mixer, the condition of dumping is that melting temperature reaches 140-150 DEG C in step S12, the item of dumping in step S13
Part is that melting temperature reaches 90-100 DEG C;Slice in step S12 and S13 carries out in open mill, and the roll spacing of open mill is 3-4
㎜。
Step S2 middle fuselage barrel temperature is 55-65 DEG C, and head and forming temperature are 70-80 DEG C.
The conditions of vulcanization once vulcanized in step S3 are as follows: 180 DEG C of temperature, the time 3 minutes, sulfide stress 5-10MPa;It is secondary
The conditions of vulcanization of vulcanization are as follows: 200 DEG C of temperature, time 16-20 hour.
Embodiment 1
Outside framework oil seal is prepared by following raw material components:
Hydrogenated nitrile-butadiene rubber: 100 parts;Activator (magnesia): 6 parts;Filler (carbon black): 45 parts;Plasticizer: 7 parts;Crosslinking agent:
1.5 part;Vulcanizing agent: 2 parts.
Embodiment 2
Hydrogenated nitrile-butadiene rubber: 100 parts;Activator (magnesia): 7 parts;Filler (carbon black): 50 parts;Plasticizer: 8 parts;Crosslinking agent: 2
Part;Vulcanizing agent: 2.5 parts.
Embodiment 3
Hydrogenated nitrile-butadiene rubber: 100 parts;Activator (magnesia): 8 parts;Filler (carbon black): 55 parts;Plasticizer: 9 parts;Crosslinking agent:
2.5 part;Vulcanizing agent: 3 parts.
Table 1
The each raw material component of embodiment 1-3 is subjected to production inspection using above-mentioned outside framework oil seal production technology according to each parameter of table 1
It tests, skeleton oil seal performance obtained is good, and has high tensile, Gao Lashen elongation, high-tear strength, weather-proof resistance to smelly
The performances such as oxygen.
From the above mentioned, a kind of outside framework oil seal of the invention and its production technology, by selecting hydrogenated nitrile-butadiene rubber as close
Closure material, effectively increases the sealing performance of outside framework oil seal, while having high tensile, Gao Lashen elongation, high tearing strong
The performances such as degree, weather-proof ozone improve the reliability of outside framework oil seal, reduce the production cost simultaneously, and simple process, raw material are matched
Than reasonable.
The present invention is described by above-mentioned related embodiment, however above-described embodiment is only to implement example of the invention.
It must be noted that the embodiment disclosed is not limiting as the scope of the present invention.On the contrary, do not depart from spirit of the invention and
It is changed and retouched made by range, belongs to scope of patent protection of the invention.
Claims (6)
1. a kind of outside framework oil seal, which is characterized in that in parts by weight, be mainly prepared from the following materials:
100 parts of hydrogenated nitrile-butadiene rubber;
5-10 parts of activator;
45-60 parts of filler;
5-12 parts of plasticizer;
1-3 parts of crosslinking agent;
2-4 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
2. a kind of outside framework oil seal as described in claim 1, which is characterized in that be mainly prepared from the following materials:
100 parts of hydrogenated nitrile-butadiene rubber;
5-8 parts of activator;
50-55 parts of filler;
5-10 parts of plasticizer;
1.5-3 parts of crosslinking agent;
2.5-3 parts of vulcanizing agent;
Wherein, the activator is at least one of magnesia, zinc oxide and stearic acid;The filler is carbon black or titanium dioxide
Silicon;The plasticizer is polyester polyether plasticizer;The vulcanizing agent is dicumyl peroxide.
3. a kind of production technology of outside framework oil seal as claimed in claim 1 or 2, which comprises the following steps:
S1. it is kneaded, comprising the following steps:
S11. hydrogenated nitrile-butadiene rubber is kneaded, obtains mixture A;
S12. after being kneaded mixture A, activator, filler, plasticizer, dumping, slice obtain rubber premixing glue;
S13. it after rubber premixing glue being plasticated, is kneaded with vulcanizing agent, crosslinking agent, dumping, slice;
S14. it takes piece to carry out curing curve and quantitative measurement with cold front heavy rain, after performance reaches requirement, goes to next step;
S2. preforming, it is carried out on precision performer, the film in step 1 is put into the barrel of precision performer
Booting carries out squeezing out adhesive tape or is cut into regulation character and weight while squeezing out as compound blank used in small dimension oil sealing;
S3. vulcanize, the metallic framework of preforming good adhesive tape or compound blank and surface treated coating adhesive is put into mold,
Pressurization, heating are once vulcanized on the single vulcanizer of electric heating, and the outside framework oil seal after primary vulcanization, which is put into insulating box, carries out two
Secondary vulcanization;
S4. lip and shock mount are cut, the outside framework oil seal through post-cure is cut on lip machine by product drawing vacuumizing oil sealing
It is cut into the lip internal diameter of regulation shape and predetermined size, then, loads onto the metal spring of prescribed material, size and value of thrust;
S5. it examines and bench test is sampled and carried out after loading onto inspection of the outside framework oil seal of spring by standard progress appearance and size
Bench simulation test, test are carried out on oil sealing field investigation platform, after carrying out reliability bench simulation test, are examined and are tested
Qualified outside framework oil seal factory is that user's installation uses.
4. a kind of production technology of outside framework oil seal as claimed in claim 3, which is characterized in that step S11, in S12 and S13
Mixing carries out in mixer, and melting temperature is 20-90 DEG C in step S11, and melting temperature is 20-150 DEG C in step S12,
Melting temperature is 70-100 DEG C in step S13;Dumping in step S12 and S13 carries out in mixer, arranges in step S12
The condition of glue is that melting temperature reaches 140-150 DEG C, and the condition of dumping is that melting temperature reaches 90-100 DEG C in step S13;Step
Slice in rapid S12 and S13 carries out in open mill, and the roll spacing of open mill is 3-4 ㎜.
5. a kind of production technology of outside framework oil seal as claimed in claim 3, which is characterized in that step S2 middle fuselage barrel temperature
It is 55-65 DEG C, head and forming temperature are 70-80 DEG C.
6. a kind of production technology of outside framework oil seal as claimed in claim 3, which is characterized in that the sulphur once vulcanized in step S3
Change condition are as follows: 180 DEG C of temperature, the time 3 minutes, sulfide stress 5-10MPa;The conditions of vulcanization of post-cure are as follows: 200 DEG C of temperature,
Time 16-20 hour.
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CN201910200299.8A CN110041586A (en) | 2019-03-16 | 2019-03-16 | A kind of outside framework oil seal and its production technology |
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Cited By (3)
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CN110483867A (en) * | 2019-09-29 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of high-temperature and high-presure resistent rubber material and preparation method thereof |
CN110684255A (en) * | 2019-10-12 | 2020-01-14 | 贵州航天精工制造有限公司 | High-pressure-resistant self-lubricating sealing material suitable for marine environment and preparation method thereof |
CN110724322A (en) * | 2019-10-08 | 2020-01-24 | 浙江天铁实业股份有限公司 | Sealing member material for refrigerant air conditioning system and manufacturing method thereof |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110483867A (en) * | 2019-09-29 | 2019-11-22 | 中国石油集团川庆钻探工程有限公司 | A kind of high-temperature and high-presure resistent rubber material and preparation method thereof |
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CN110724322A (en) * | 2019-10-08 | 2020-01-24 | 浙江天铁实业股份有限公司 | Sealing member material for refrigerant air conditioning system and manufacturing method thereof |
CN110684255A (en) * | 2019-10-12 | 2020-01-14 | 贵州航天精工制造有限公司 | High-pressure-resistant self-lubricating sealing material suitable for marine environment and preparation method thereof |
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