CN104194079A - Composite seal ring and manufacturing process thereof - Google Patents
Composite seal ring and manufacturing process thereof Download PDFInfo
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- CN104194079A CN104194079A CN201410499346.0A CN201410499346A CN104194079A CN 104194079 A CN104194079 A CN 104194079A CN 201410499346 A CN201410499346 A CN 201410499346A CN 104194079 A CN104194079 A CN 104194079A
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Abstract
The invention discloses a composite seal ring and a manufacturing process of the composite seal ring, and belongs to the field of manufacturing of a rubber seal ring. The composite seal ring comprises the materials of 10-100 parts of natural rubber, 10-100 parts of butadiene styrene rubber, 10-100 parts of high styrene resin, 2-10 parts of zinc oxide, 1-3 parts of stearic acid, 0.5-2 parts of accelerant DM, 0.5-2 parts of accelerant CBS, 1-3 parts of antiager RD, 1-3 parts of antiager 4010NA, 2-10 parts of petroleum resin, 20-100 parts of high abrasion furnace black, 20-100 parts of general purpose furnace black, 0.5-4 parts of sulphur, and 3-20 parts of vinylon cut fiber masterbatch. The manufacturing process provided by the invention innovatively manufactures the vinylon cut fiber masterbatch first, and additionally uses a short fiber to directionally arranged in the rubber during extruding formation, so that a working surface has a higher tear strength, and the subsection sulfuration in the sulfuration process leads to uniform and consistent sulfuration degree. The seal ring manufactured by using the manufacturing process has the effects of low compression deformation, excellent elasticity, high hardness, excellent tearing strength, and good sealing effect.
Description
Technical field
The sealing-ring that the present invention relates to elastomeric material is made field, relates in particular to a kind of Composite Material Seal Ring and manufacture craft thereof.
Background technology
Nodular Cast Iron Pipes enterprise of state, in the time carrying out factory inspection, need to carry out the water test to every cast tube, and cast tube bell and spigot two ends need seal with sealing-ring, and past cast tube intracontour waterflooding also reaches regulation nominal pressure maintenance for some time.The contact area of cast tube socket end is very little, thereby need bear very large mechanical shear stress.The sealing-ring product using at present can not meet the needs of this type of production operation, often use just there will be in very short time tear, thereby the phenomenon such as distortion loses use value, major cause one is that formulating of recipe is unreasonable: original product design for rubber formulation generally adopts General Purpose Rubber, hardness is lower, tear resistance is poor, compression set is large, not ageing-resistant; The 2nd, sulfuration process is unreasonable, thereby work in-process can be because inside and outside state of vulcanization inconsistent work-ing life of causing the difference of performance inside and outside product to affect the finished product in sulfidation.
China Patent Publication No.: 102731865A, open day: the patent documentation on October 17th, 2012 discloses the rubber combination of a kind of paracril and epoxy natural rubber, and this invention is by paracril 3345, epoxy natural rubber, anti-aging agent RD, antioxidant MB, stearic acid, SULPHUR POWDER, Microcrystalline Wax, zinc oxide, processing aid WB212, white carbon black, carbon black N330, triethyl citrate, Vulcanization accelerator TMTD, accelerant CZ, altax, nano barite, light calcium carbonate, chalk, high styrene resin, phenylformic acid etc. are made.The rubber combination compression set of this invention is low, good springiness, hardness are high, be used for making the rubber items such as sealing-ring, cost-saved, but this invention is due to the good elasticity of too high pursuit, use a large amount of triethyl citrates, cause the sealing-ring tear resistance of making poor, can not be applied to the making of water test rubber seal.
Summary of the invention
1. the technical problem that invention will solve
For problems such as the water test existing in prior art are poor with rubber seal tear resistance, hardness is lower, compression set is large and not ageing-resistant, the invention provides a kind of Composite Material Seal Ring and manufacture craft thereof.It can realize that the composite material rubber sealing-ring compression set of making is low, good springiness, hardness are high, especially good, the good sealing effect of tear resistance.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
A kind of Composite Material Seal Ring, is made up of the raw material of following weight part:
10～100 parts of natural rubbers, 10～100 parts, styrene-butadiene rubber(SBR), 10～100 parts of high styrene resins, 2～10 parts, zinc oxide, 1～3 part of stearic acid, 0.5～2 part of altax, 0.5～2 part of accelerator CBS, 1～3 part of anti-aging agent RD, 1～3 part of antioxidant 4010NA, 2～10 parts of petroleum resin, 20～100 parts of high wear-resistant carbon blacks, 20～100 parts of general carbon blacks, 0.5～4 part, sulphur, 3～20 parts of polyvinyl staple fibre master batchs.
Preferably, formed by the raw material of following weight part:
30 parts of natural rubbers, 40 parts, styrene-butadiene rubber(SBR), 30 parts of high styrene resins, 5 parts, zinc oxide, 1.5 parts of stearic acid, 1 part of altax, 1.2 parts of accelerator CBSs, 1.5 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 3 parts of petroleum resin, 60 parts of high wear-resistant carbon blacks, 30 parts of general carbon blacks, 2 parts, sulphur, 10 parts of polyvinyl staple fibre master batchs.
According to a manufacture craft for the Composite Material Seal Ring described in claims 1 or 2, the steps include:
1) first make polyvinyl staple fibre master batch: part natural rubber is added in mill to polyvinyl canvas and part of stearic acid after 0.5-2mm thin-pass, mixing evenly after, stand-by;
2) part natural rubber is plasticated in mill, 100 DEG C of the mooney viscosity ML (1+4) of plasticating are controlled at 60 ± 5 again;
3) then will remain natural rubber, styrene-butadiene rubber(SBR), high styrene resin and step 1) make polyvinyl staple fibre master batch drop into Banbury mixer, add successively again high wear-resistant carbon black, general carbon black, zinc oxide, step 1) after remaining stearic acid, altax, accelerator CBS, anti-aging agent RD, antioxidant 4010NA and petroleum resin, mixing 2～3 minutes, mentioning floating weight adds sulphur, binder removal after mixing 30～60 seconds again, lower sheet, cooling after mill turns refining; 100 DEG C of mooney viscosity ML (1+4) are controlled at 70 ± 5;
4) by step 3) cooled sizing material rolls through rolling press, and the polyvinyl staple fibre in polyvinyl staple fibre master batch is forward arranged by rolling direction, weight is more in accordance with regulations carried out moulding;
5) work in-process of forming are put into 60～80 DEG C of baking oven preheatings;
6) preheated sizing material is dropped into die cavity and prolongs and press the even radial array of direction by it, push vulcanizing press and vulcanize:
Curing temperature is controlled at 130～140 DEG C by A, initial vulcanization step, and vulcanizing press matched moulds oil pressure is controlled at 14～16Mpa, curing time 10 minutes;
B, sulfuration are controlled at 150～160 DEG C by curing temperature mid-term, and vulcanizing press matched moulds oil pressure is controlled at 12～14Mpa, curing time 10～20 minutes;
Curing temperature is controlled at 130～140 DEG C by C, sulfuration later stage, and vulcanizing press matched moulds oil pressure is controlled at 10～12Mpa, curing time 10 minutes;
7) after sulfuration, after finishing, inspection, Composite Material Seal Ring completes.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following beneficial effect:
(1) a kind of Composite Material Seal Ring of the present invention, use the combination of natural rubber, high styrene resin and polyvinyl staple fibre master batch, and the synergy of three kinds of components is embodied in, being used in combination of these three kinds of components improved sealing-ring anti tear and strength property greatly, hardness and tearing toughness do not add and improve 10～15%, and its performance is far superior to only to add the hardness of the sealing-ring that high styrene resin improves or only adds the tearing toughness of the sealing-ring that polyvinyl staple fibre master batch increases.Through test and record analysis repeatedly, the present invention has determined the optimum weight proportioning of these three kinds of components, avoid adding high styrene resin and reduced the tearing toughness of sealing-ring and added polyvinyl staple fibre master batch the technical problem that reduces the hardness of sealing-ring, make the anti tear of sealing-ring and strength property all in the best, the composite material rubber sealing-ring tear resistance of production is good, good sealing effect;
(2) a kind of Composite Material Seal Ring of the present invention, has determined the preferred weight proportion of each raw material: 30 parts of natural rubbers, 40 parts, styrene-butadiene rubber(SBR), 30 parts of high styrene resins, 5 parts, zinc oxide, 1.5 parts of stearic acid, 1 part of altax, 1.2 parts of accelerator CBSs, 1.5 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 3 parts of petroleum resin, 60 parts of high wear-resistant carbon blacks, 30 parts of general carbon blacks, 2 parts, sulphur, 10 parts of polyvinyl staple fibre master batchs.With the cross-linked rubber of its making, there is good compression set performance and tear resistance, tearing toughness can reach 80～120KN/m;
(3) manufacture craft of a kind of Composite Material Seal Ring of the present invention, add polyvinyl staple fibre for needs, first the making polyvinyl staple fibre master batch of innovation formula, instead of directly add polyvinyl staple fibre, the polyvinyl staple fibre adding like this mixes, dispersity more directly adds the rank that rises, and improves 10% thereby tensile property is more directly added;
(4) a kind of Composite Material Seal Ring of the present invention and manufacture craft thereof, the Composite Material Seal Ring of production, owing to having good compression set performance and tear resistance, is highly suitable for water test sealing-ring, is convenient to promote the use of.
Embodiment
For further understanding content of the present invention, the present invention is described in detail in conjunction with the embodiments.
Embodiment 1
A kind of Composite Material Seal Ring of the present embodiment, is made up of the raw material of following weight part:
10 parts of natural rubbers, 100 parts, styrene-butadiene rubber(SBR), 10 parts of high styrene resins, 10 parts, zinc oxide, 1 part of stearic acid, 2 parts of altaxs, 0.5 part of accelerator CBS, 3 parts of anti-aging agent RDs, 1 part of antioxidant 4010NA, 10 parts of petroleum resin, 20 parts of high wear-resistant carbon blacks, 100 parts of general carbon blacks, 0.5 part, sulphur, 20 parts of polyvinyl staple fibre master batchs.
The manufacture craft of a kind of Composite Material Seal Ring of the present embodiment, the steps include:
1) first make polyvinyl staple fibre master batch: 4 parts of natural rubbers are added in mill to 19.5 parts of polyvinyl canvas and 0.5 part of stearic acid after 0.5-2mm thin-pass, mixing evenly after, stand-by;
2) 4 parts of natural rubbers are plasticated in mill, 100 DEG C of the mooney viscosity ML (1+4) of plasticating are controlled at 60 ± 5 again;
3) then will remain 2 parts of natural rubbers, 100 parts of styrene-butadiene rubber(SBR), 10 parts of high styrene resins and steps 1) 20 parts of polyvinyl staple fibre master batchs making drop into Banbury mixeies, add successively again 20 parts of high wear-resistant carbon blacks, 100 parts of general carbon blacks, 10 parts of zinc oxide, step 1) rear remaining 0.5 part of stearic acid, 2 parts of altaxs, 0.5 part of accelerator CBS, 3 parts of anti-aging agent RDs, 1 part of antioxidant 4010NA and 10 parts of petroleum resin, mixing 2～3 minutes, mentioning floating weight adds 0.5 part of sulphur, binder removal after mixing 30～60 seconds again, lower sheet after mill turns refining, cooling, 100 DEG C of mooney viscosity ML (1+4) are controlled at 70 ± 5,
4) by step 3) cooled sizing material rolls through rolling press, the polyvinyl staple fibre in polyvinyl staple fibre master batch forward arranged by rolling direction, then cut apart moulding by weight;
5) work in-process of forming are put into 60～80 DEG C of baking oven preheatings;
6) preheated sizing material is dropped into die cavity and prolongs and press the even radial array of direction by it, push vulcanizing press and vulcanize:
Curing temperature is controlled at 130～140 DEG C by A, initial vulcanization step, and vulcanizing press matched moulds oil pressure is controlled at 14～16Mpa, curing time 10 minutes;
B, sulfuration are controlled at 150～160 DEG C by curing temperature mid-term, and vulcanizing press matched moulds oil pressure is controlled at 12～14Mpa, curing time 10～20 minutes;
Curing temperature is controlled at 130～140 DEG C by C, sulfuration later stage, and vulcanizing press matched moulds oil pressure is controlled at 10～12Mpa, curing time 10 minutes;
7) after sulfuration, after finishing, inspection, Composite Material Seal Ring completes.
The rubber seal that a kind of Composite Material Seal Ring of the present embodiment is produced, tear resistance can reach 80～120KN/m, but elasticity is slightly poor.
Embodiment 2
A kind of Composite Material Seal Ring of the present embodiment, is test and the record analysis through repeatedly, has just determined their weight optimum ratio: 30 parts of natural rubbers; 40 parts, styrene-butadiene rubber(SBR), 30 parts of high styrene resins, 5 parts, zinc oxide; 1.5 parts of stearic acid, 1 part of altax, 1.2 parts of accelerator CBSs; 1.5 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 3 parts of petroleum resin; 60 parts of high wear-resistant carbon blacks; 30 parts of general carbon blacks, 2 parts, sulphur, 10 parts of polyvinyl staple fibre master batchs.
The manufacture craft of a kind of Composite Material Seal Ring of the present embodiment, its step is substantially with embodiment 1, difference is the parts by weight of raw materials difference adding, the rubber seal that a kind of Composite Material Seal Ring of the present embodiment is produced has that compression set is low, good springiness, hardness are high, also have that tear resistance is good, the effect of good sealing effect concurrently, tearing toughness can reach 80～120KN/m.
Embodiment 3
A kind of Composite Material Seal Ring of the present embodiment, is made up of the raw material of following weight part:
100 parts of natural rubbers, 10 parts, styrene-butadiene rubber(SBR), 100 parts of high styrene resins, 2 parts, zinc oxide, 3 parts of stearic acid, 0.5 part of altax, 2 parts of accelerator CBSs, 1 part of anti-aging agent RD, 3 parts of antioxidant 4010NAs, 2 parts of petroleum resin, 100 parts of high wear-resistant carbon blacks, 20 parts of general carbon blacks, 4 parts, sulphur, 3 parts of polyvinyl staple fibre master batchs.
The manufacture craft of a kind of Composite Material Seal Ring of the present embodiment, its step is substantially with embodiment 1, and difference is the parts by weight of raw materials difference adding.
The rubber seal that a kind of Composite Material Seal Ring of the present embodiment is produced, elasticity is best, but tear resistance is slightly poor, can only reach 40～50KN/M.
Example of the present invention is only that the preferred embodiment of the present invention is described; not design of the present invention and scope are limited; do not departing under the prerequisite of design philosophy of the present invention; various distortion and improvement that this area engineering technical personnel make technical scheme of the present invention; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention is own through being all documented in claims.
Claims (3)
1. a Composite Material Seal Ring, is made up of the raw material of following weight part:
10～100 parts of natural rubbers, 10～100 parts, styrene-butadiene rubber(SBR), 10～100 parts of high styrene resins, 2～10 parts, zinc oxide, 1～3 part of stearic acid, 0.5～2 part of altax, 0.5～2 part of accelerator CBS, 1～3 part of anti-aging agent RD, 1～3 part of antioxidant 4010NA, 2～10 parts of petroleum resin, 20～100 parts of high wear-resistant carbon blacks, 20～100 parts of general carbon blacks, 0.5～4 part, sulphur, 3～20 parts of polyvinyl staple fibre master batchs.
2. according to a kind of Composite Material Seal Ring described in claims 1, it is characterized in that: the raw material by following weight part forms:
30 parts of natural rubbers, 40 parts, styrene-butadiene rubber(SBR), 30 parts of high styrene resins, 5 parts, zinc oxide, 1.5 parts of stearic acid, 1 part of altax, 1.2 parts of accelerator CBSs, 1.5 parts of anti-aging agent RDs, 1.5 parts of antioxidant 4010NAs, 3 parts of petroleum resin, 60 parts of high wear-resistant carbon blacks, 30 parts of general carbon blacks, 2 parts, sulphur, 10 parts of polyvinyl staple fibre master batchs.
3. a manufacture craft for the Composite Material Seal Ring described in claims 1 or 2, the steps include:
1) first make polyvinyl staple fibre master batch: part natural rubber is added in mill to polyvinyl canvas and part of stearic acid after 0.5-2mm thin-pass, mixing evenly after, stand-by;
2) part natural rubber is plasticated in mill, 100 DEG C of the mooney viscosity ML (1+4) of plasticating are controlled at 60 ± 5 again;
3) then will remain natural rubber, styrene-butadiene rubber(SBR), high styrene resin and step 1) make polyvinyl staple fibre master batch drop into Banbury mixer, add successively again high wear-resistant carbon black, general carbon black, zinc oxide, step 1) after remaining stearic acid, altax, accelerator CBS, anti-aging agent RD, antioxidant 4010NA and petroleum resin, mixing 2～3 minutes, mentioning floating weight adds sulphur, binder removal after mixing 30～60 seconds again, lower sheet, cooling after mill turns refining; 100 DEG C of this step mooney viscosity ML (1+4) are controlled at 70 ± 5;
4) by step 3) cooled sizing material rolls through rolling press, and the polyvinyl staple fibre in polyvinyl staple fibre master batch is forward arranged by rolling direction, weight is more in accordance with regulations carried out moulding;
5) work in-process of forming are put into 60～80 DEG C of baking oven preheatings;
6) preheated sizing material is dropped into die cavity by the even radial array of its rolling direction, pushes vulcanizing press and vulcanize:
Curing temperature is controlled at 130～140 DEG C by A, initial vulcanization step, and vulcanizing press matched moulds oil pressure is controlled at 14～16Mpa, curing time 10 minutes;
B, sulfuration are controlled at 150～160 DEG C by curing temperature mid-term, and vulcanizing press matched moulds oil pressure is controlled at 12～14Mpa, curing time 10～20 minutes;
Curing temperature is controlled at 130～140 DEG C by C, sulfuration later stage, and vulcanizing press matched moulds oil pressure is controlled at 10～12Mpa, curing time 10 minutes;
7) after sulfuration, after finishing, inspection, Composite Material Seal Ring completes.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558706A (en) * | 2014-12-24 | 2015-04-29 | 郎溪县恒通塑业有限公司 | Nanometer zinc oxide modified natural rubber sealing gasket |
| CN104804262A (en) * | 2015-04-27 | 2015-07-29 | 安徽美祥实业有限公司 | Engine oil seal rubber material |
| CN105178045A (en) * | 2015-08-19 | 2015-12-23 | 海宁市名希纺织品有限公司 | Imitation breathable buffalo leather for producing leather sofa |
| CN105865560A (en) * | 2016-05-24 | 2016-08-17 | 马鞍山宏力橡胶制品有限公司 | Anti-freezing protective jacket of tap water flowmeter and application and manufacturing process thereof |
| CN107990081A (en) * | 2017-11-28 | 2018-05-04 | 西南石油大学 | A kind of petroleum pipeline sealing device |
| CN108864511A (en) * | 2018-06-12 | 2018-11-23 | 安徽森米诺农业科技有限公司 | Grain vacuum packing machine sealing ring sizing material |
| CN111019199A (en) * | 2019-12-27 | 2020-04-17 | 惠州麦丰密封科技有限公司 | Sealing ring and preparation method thereof |
| CN111590941A (en) * | 2020-04-02 | 2020-08-28 | 浙江翔宇密封件有限公司 | Production process and production device of annular sealing ring for high-speed rail sealing element |
| CN112457538A (en) * | 2020-12-01 | 2021-03-09 | 际华三五一七橡胶制品有限公司 | High-hardness supporting sealing ring rubber material |
| CN112480487A (en) * | 2020-12-01 | 2021-03-12 | 际华三五一七橡胶制品有限公司 | Sealing ring soft natural rubber material for water supply and drainage pipelines and preparation method thereof |
| CN112659607A (en) * | 2020-12-21 | 2021-04-16 | 唐鹏飞 | Preparation method of self-displaying ice-sealing rubber sealing ring |
| CN113087978A (en) * | 2021-05-06 | 2021-07-09 | 南京曼润高分子科技研究院有限公司 | Modified high-toughness sluice rubber sealing element and preparation method thereof |
| CN113234263A (en) * | 2021-06-08 | 2021-08-10 | 浙江保尔力橡塑股份有限公司 | Fiber-containing primer of cloth-covered triangular belt and preparation process thereof |
| CN113861522A (en) * | 2021-10-25 | 2021-12-31 | 昆明翔鹰机电设备有限公司 | Wear-resistant anti-fatigue synthetic rubber material |
| CN116285038A (en) * | 2023-03-21 | 2023-06-23 | 马鞍山宏力橡胶制品有限公司 | Slewing bearing nitrile-butadiene sealing ring sizing material and application thereof |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104558706A (en) * | 2014-12-24 | 2015-04-29 | 郎溪县恒通塑业有限公司 | Nanometer zinc oxide modified natural rubber sealing gasket |
| CN104804262A (en) * | 2015-04-27 | 2015-07-29 | 安徽美祥实业有限公司 | Engine oil seal rubber material |
| CN105178045A (en) * | 2015-08-19 | 2015-12-23 | 海宁市名希纺织品有限公司 | Imitation breathable buffalo leather for producing leather sofa |
| CN105865560B (en) * | 2016-05-24 | 2021-10-29 | 马鞍山宏力橡胶制品有限公司 | Anti-freezing protective sleeve of tap water flowmeter and application and manufacturing process thereof |
| CN105865560A (en) * | 2016-05-24 | 2016-08-17 | 马鞍山宏力橡胶制品有限公司 | Anti-freezing protective jacket of tap water flowmeter and application and manufacturing process thereof |
| CN107990081A (en) * | 2017-11-28 | 2018-05-04 | 西南石油大学 | A kind of petroleum pipeline sealing device |
| CN108864511A (en) * | 2018-06-12 | 2018-11-23 | 安徽森米诺农业科技有限公司 | Grain vacuum packing machine sealing ring sizing material |
| CN111019199A (en) * | 2019-12-27 | 2020-04-17 | 惠州麦丰密封科技有限公司 | Sealing ring and preparation method thereof |
| CN111590941A (en) * | 2020-04-02 | 2020-08-28 | 浙江翔宇密封件有限公司 | Production process and production device of annular sealing ring for high-speed rail sealing element |
| CN112457538A (en) * | 2020-12-01 | 2021-03-09 | 际华三五一七橡胶制品有限公司 | High-hardness supporting sealing ring rubber material |
| CN112480487A (en) * | 2020-12-01 | 2021-03-12 | 际华三五一七橡胶制品有限公司 | Sealing ring soft natural rubber material for water supply and drainage pipelines and preparation method thereof |
| CN112659607A (en) * | 2020-12-21 | 2021-04-16 | 唐鹏飞 | Preparation method of self-displaying ice-sealing rubber sealing ring |
| CN113087978A (en) * | 2021-05-06 | 2021-07-09 | 南京曼润高分子科技研究院有限公司 | Modified high-toughness sluice rubber sealing element and preparation method thereof |
| CN113234263A (en) * | 2021-06-08 | 2021-08-10 | 浙江保尔力橡塑股份有限公司 | Fiber-containing primer of cloth-covered triangular belt and preparation process thereof |
| CN113861522A (en) * | 2021-10-25 | 2021-12-31 | 昆明翔鹰机电设备有限公司 | Wear-resistant anti-fatigue synthetic rubber material |
| CN116285038A (en) * | 2023-03-21 | 2023-06-23 | 马鞍山宏力橡胶制品有限公司 | Slewing bearing nitrile-butadiene sealing ring sizing material and application thereof |
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