CN102417631B - Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof - Google Patents
Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof Download PDFInfo
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- CN102417631B CN102417631B CN 201110336691 CN201110336691A CN102417631B CN 102417631 B CN102417631 B CN 102417631B CN 201110336691 CN201110336691 CN 201110336691 CN 201110336691 A CN201110336691 A CN 201110336691A CN 102417631 B CN102417631 B CN 102417631B
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Abstract
The invention discloses a rubber material for production of a parallel gate valve end surface O-shaped sealing ring and a preparation method thereof. The rubber material for production of a parallel gate valve end surface O-shaped sealing ring is prepared from a rubber component A and a rubber component B by mixing, wherein the rubber component A comprises: by weight, 85 to 95 parts of nitrile rubber 3304, 0.3 to 0.5 parts of sulphur, 4 to 6 parts of zinc oxide, 1 to 1.5 parts of eleaostearic acid, 1 to 2 parts of an anti-oxidant BHT, 1 to 2 parts of an antioxidant RD, 1 to 2 parts of an antioxidant 4010Na, 3 to 4 parts of microcrystalline wax, 22 to 25 parts of fast extruded carbon black N660, 62 to 65 parts of carbon black N330 having high wear resistance, 18 to 22 parts of dioctyl phthalate, 10 to 15 parts of barium sulfate, 3 to 4 parts of a promoter M, 1 to 2 parts of a promoter DM and 1 to 2 parts of a promoter PZ; and the rubber component B comprises: by weight, 82 to 87 parts of polyacrylic rubber, 13 to 18 parts of ethylene propylene rubber, 1 to 2 parts of sodium stearate, 1 to 3 parts of an antioxidant RD, 0.4 to 0.6 parts of Gum-easy T78, 1 to 2 parts of Rhine wax, 45 to 55 parts of fast extruded carbon black, 10 to 14 parts of graphite powder, 5 to 8 parts of dioctyl phthalate, 0.5 to 1.5 parts of a vulcanizing agent DCP, 0.2 to 0.8 parts of an auxiliary vulcanizing agent TAIC and 1 to 2 parts of a promoter Na-22. The rubber material for production of a parallel gate valve end surface O-shaped sealing ring has good comprehensive properties. A parallel gate valve end surface O-shaped sealing ring prepared from the rubber material provided by the invention has good gas tightness, weatherability, low-temperature resistance and oil resistance. The raw materials of the rubber material provided by the invention have low costs.
Description
Technical field
The present invention relates to the rubber composite manufacture field, be specifically related to rubber size for the production of Parallel gate valve Parallel slide valve end face O RunddichtringO and preparation method thereof.
Background technology
In fluid-duct-system, valve is controlling elements, its Main Function is xegregating unit and tubing system, adjust flux, prevents backflow, adjusting and drainage pressure, therefore require higher to stopping property and the corrosion resistance nature of valve, high temperature resistant, the corrosion resistance nature of existing casting gate valve are not fine, the resistance to elevated temperatures of existing O-shaped seal ring rubber sizing material of parallel gate valve end surfaces, corrosion resistance nature are not very desirable, although the corrosion resistance and good that has, but raw-material expensive, cost is high.
Summary of the invention
The invention provides O-shaped seal ring rubber sizing material of parallel gate valve end surfaces and preparation method thereof, the Parallel gate valve Parallel slide valve end face O RunddichtringO of producing with sizing material of the present invention has the characteristics such as good resistance to air loss, weathering resistance, lower temperature resistance and oil-proofness, and the cost of material is low simultaneously.
The present invention adopts following technical scheme to achieve these goals:
A kind of rubber size for the production of Parallel gate valve Parallel slide valve end face O RunddichtringO is characterized in that, it is by A, mixing the forming of B two portions rubber size, and the weight part of its two portions constitutive material is:
The A sizing material:
Paracril 330485-95, sulphur 0.3-0.5, zinc oxide 4-6, stearic acid 1-1.5, antioxidant BHT 1-2, anti-aging agent RD 1-2, antioxidant 4010 Na 1-2, Microcrystalline Wax 3-4, extrude carbon black N660 22-25, high abrasion furnace carbon black N330 62-65, dioctyl ester 18-22, barium sulfate 10-15, captax 3-4, altax 1-2, promotor PZ 1-2 soon
The B sizing material:
Polyacrylic rubber 82-87, ethylene-propylene rubber(EPR) 13-18, sodium stearate 1-2, anti-aging agent RD 1-3, the easy plain T-78 0.4-0.6 of glue, Lay mattress wax 1-2, extrude carbon black 45-55, Graphite Powder 99 10-14, dioctyl ester 5-8, vulcanizing agent DCP 0.5-1.5, cocuring agent TAIC 0.2-0.8, accelerant N a-22 1-2 soon.
Described a kind of rubber size for the production of Parallel gate valve Parallel slide valve end face O RunddichtringO is characterized in that, it is by A, mixing the forming of B two portions rubber size, and the weight part of its two portions constitutive material is:
The A sizing material:
Paracril 3,304 90, sulphur 0.4, zinc oxide 5, stearic acid 1.5, antioxidant BHT 1.5, anti-aging agent RD 1.5, antioxidant 4010 Na1.5, Microcrystalline Wax 3.5, extrude carbon black N660 24, high abrasion furnace carbon black N330 63, dioctyl ester 20, barium sulfate 12, captax 3.5, altax 1.5, promotor PZ 1.5 soon
The B sizing material:
Polyacrylic rubber 85, ethylene-propylene rubber(EPR) 15, sodium stearate 1.5, anti-aging agent RD 2, the easy plain T-780.5 of glue, Lay mattress wax 1.5, extrude carbon black 50, Graphite Powder 99 12, dioctyl ester 6, vulcanizing agent DCP 1, cocuring agent TAIC 0.6, accelerant N a-22 1.5 soon.
A kind of preparation method of the rubber size for the production of Parallel gate valve Parallel slide valve end face O RunddichtringO is characterized in that may further comprise the steps:
The first step: prepare respectively A sizing material, B sizing material
One, the preparation of A sizing material
(1) plasticates: start Banbury mixer, paracril 3304 is dropped in the Banbury mixer plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again zinc oxide, stearic acid, anti-aging agent class, Microcrystalline Wax, after mixing 3-4 minute, after adding barium sulfate continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added first the mixing 2-3 of 2/3 carbon black minute, and added again residue 1/3 carbon black, turned refining 2-3 minute, after adding again the abundant mixing 3-4 of dioctyl ester minute, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, vulcanizing agent, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the A sizing material, the processing temperature of mill≤60 ℃;
Two, the preparation of B sizing material
(1) plasticates: start Banbury mixer, polyacrylic rubber, ethylene-propylene rubber(EPR) are dropped in the Banbury mixer by formula rate plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again sodium stearate, anti-aging agent class, the easy plain T-78 of glue, Lay mattress wax, after mixing 3-4 minute, after the adding Graphite Powder 99 continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added first the mixing 2-3 of 2/3 carbon black minute, and added again residue 1/3 carbon black, turned refining 2-3 minute, after adding again the abundant mixing 3-4 of dioctyl ester minute, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, cocuring agent, vulcanizing agent class, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the B sizing material, the processing temperature of mill≤60 ℃.
Second step: A sizing material and B sizing material mixing
With the above-mentioned A sizing material that makes and B sizing material by weight being A: B=(1-2): 1 mix after, join in the mill, again carry out mixing, thin-pass 6-8 time, the rubber composite of the present invention that can make.
Beneficial effect of the present invention:
Elastomeric material of the present invention has good over-all properties, has the characteristics such as good resistance to air loss, weathering resistance, lower temperature resistance and oil-proofness with the gate valve O RunddichtringO of rubber mass production of the present invention, and the cost of material is low simultaneously.
Embodiment
Used part among the embodiment is weight part.
Embodiment one:
1, starting material are prepared:
The raw-material preparation of A sizing material:
Take by weighing paracril 3,304 90, sulphur 0.4, zinc oxide 5, stearic acid 1.5, antioxidant BHT 1.5, anti-aging agent RD 1.5, antioxidant 4010 Na1.5, Microcrystalline Wax 3.5, extrude carbon black N660 24, high abrasion furnace carbon black N330 63, dioctyl ester 20, barium sulfate 12, captax 3.5, altax 1.5, promotor PZ 1.5 soon
The raw-material preparation of B sizing material:
Take by weighing polyacrylic rubber 85, ethylene-propylene rubber(EPR) 15, sodium stearate 1.5, anti-aging agent RD 2, the easy plain T-78 0.5 of glue, Lay mattress wax 1.5, extrude carbon black 50, Graphite Powder 99 12, dioctyl ester 6, vulcanizing agent DCP 1, cocuring agent TAIC 0.6, accelerant N a-22 1.5 soon.
2 ,-and kind of the preparation method for the production of the rubber size of Parallel gate valve Parallel slide valve end face O RunddichtringO, may further comprise the steps:
The first step: prepare respectively A sizing material, B sizing material
One, the preparation of A sizing material
(1) plasticates: start Banbury mixer, paracril 3304 is dropped in the Banbury mixer plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again zinc oxide, stearic acid, anti-aging agent class, Microcrystalline Wax, after mixing 3-4 minute, after adding barium sulfate continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added first the mixing 2-3 of 2/3 carbon black minute, and added again residue 1/3 carbon black, turned refining 2-3 minute, after adding again the abundant mixing 3-4 of dioctyl ester minute, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, vulcanizing agent, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the A sizing material, the processing temperature of mill≤60 ℃;
Two, the preparation of B sizing material
(1) plasticates: start Banbury mixer, polyacrylic rubber, ethylene-propylene rubber(EPR) are dropped in the Banbury mixer by formula rate plasticate, after plasticating 15-25 minute, when temperature reaches 110-120 ℃, begin discharge, park cooling 23-25 hour behind the discharge;
(2) mixing: that above-mentioned cooled broken-(down)rubber is joined in the Banbury mixer, add again sodium stearate, anti-aging agent class, the easy plain T-78 of glue, Lay mattress wax, after mixing 3-4 minute, after the adding Graphite Powder 99 continues mixing 2-3 minute, again the carbon black class is added at twice wherein mixing, added first the mixing 2-3 of 2/3 carbon black minute, and added again residue 1/3 carbon black, turned refining 2-3 minute, after adding again the abundant mixing 3-4 of dioctyl ester minute, when temperature reached 85-90 ℃, the beginning discharge was parked cooling 23-25 hour behind the discharge;
(3) vulcanization system adds: above-mentioned mixing materials is dropped in the mill, cocuring agent, vulcanizing agent class, promotor class are added in the rubber unvulcanizate again, thin-pass 5-7 be all over can obtaining the B sizing material, the processing temperature of mill≤60 ℃.
Second step: A sizing material and B sizing material mixing
With the above-mentioned A sizing material that makes and B sizing material by weight being A: B=1: 1 mix after, join in the mill, again carry out mixing, thin-pass 6-8 time, the rubber composite of the present invention that can make.
Testing data
The physicals of gate valve O RunddichtringO sizing material of the present invention and common Gate-valve sealing sizing material detects and contrasts such as following table:
The oil-proofness of Gate-valve sealing sizing material of the present invention, resistance toheat, resistance to air loss and resistance to tearing are all good than conventional Gate-valve sealing sizing material as can be seen from the table.
Claims (1)
1. the rubber size for the production of Parallel gate valve Parallel slide valve end face O RunddichtringO is characterized in that, it is by A, mixing the forming of B two portions rubber size, and the weight part of its two portions constitutive material is:
The A sizing material:
Paracril 3304 85-95, sulphur 0.3-0.5, zinc oxide 4-6, stearic acid 1-1.5, antioxidant BHT 1-2, anti-aging agent RD 1-2, antioxidant 4010 Na 1-2, Microcrystalline Wax 3-4, extrude carbon black N660 22-25, high abrasion furnace carbon black N330 62-65, dioctyl ester 18-22, barium sulfate 10-15, captax 3-4, altax 1-2, promotor PZ 1-2 soon
The B sizing material:
Polyacrylic rubber 82-87, ethylene-propylene rubber(EPR) 13-18, sodium stearate 1-2, anti-aging agent RD 1-3, the easy plain T-78 0.4-0.6 of glue, Lay mattress wax 1-2, extrude carbon black 45-55, Graphite Powder 99 10-14, dioctyl ester 5-8, vulcanizing agent DCP 0.5-1.5, cocuring agent TAIC 0.2-0.8, accelerant N a-22 1-2 soon;
A sizing material and B sizing material weight ratio are A:B=1:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110336691 CN102417631B (en) | 2011-10-31 | 2011-10-31 | Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110336691 CN102417631B (en) | 2011-10-31 | 2011-10-31 | Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417631A CN102417631A (en) | 2012-04-18 |
| CN102417631B true CN102417631B (en) | 2013-02-13 |
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| CN 201110336691 Expired - Fee Related CN102417631B (en) | 2011-10-31 | 2011-10-31 | Rubber material for production of parallel gate valve end surface O-shaped sealing ring and preparation method thereof |
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Families Citing this family (2)
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| CN104974434A (en) * | 2014-04-12 | 2015-10-14 | 天津滨海新区大港汇丰汽车装饰有限公司 | Rubber composition used for valve base, preparation method thereof and the valve base |
| CN105482194A (en) * | 2015-12-30 | 2016-04-13 | 安徽铜陵科力阀门有限责任公司 | Check valve sealing rubber resistant to low temperature and high temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11270697A (en) * | 1998-03-23 | 1999-10-05 | Nok Corp | Oil seal |
| CN1151200C (en) * | 2001-05-15 | 2004-05-26 | 南开大学 | Modified polyolefine elastomer and its preparing process |
| CN100429254C (en) * | 2005-05-19 | 2008-10-29 | 洛阳石化聚丙烯有限责任公司 | Composite cross-linked polymer and its prepn process and use |
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Granted publication date: 20130213 Termination date: 20131031 |