CN102408660B - Reciprocating motion sealing ring material for high-pressure cylinder and production method thereof - Google Patents
Reciprocating motion sealing ring material for high-pressure cylinder and production method thereof Download PDFInfo
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- CN102408660B CN102408660B CN 201110285874 CN201110285874A CN102408660B CN 102408660 B CN102408660 B CN 102408660B CN 201110285874 CN201110285874 CN 201110285874 CN 201110285874 A CN201110285874 A CN 201110285874A CN 102408660 B CN102408660 B CN 102408660B
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Abstract
The invention relates to a reciprocating motion sealing ring material for high-pressure cylinder and a production method thereof; the method comprises the following steps: firstly controlling the roller temperature and roller spacing of a rubber refining machine, rolling acrylonitrile-butadiene rubber till no mesh exists; adding maleic anhydride methacrylate, uniformly mixing; adding 60% PTFE polytetrafluoroethylene emulsion for several times, rolling till the rubber sheet surface is smooth; rolling the mixed materials by the rubber refining machine till no mesh exists on the surfaces, discharging the material sheet; performing heat preservation and cooling of the material sheet to prepare a premixed grafted rubber; adding zinc oxide; adding stearic acid; adding TAIC triallyl isocyanurate and a carbon black dispersing agent HQ, mixing, adding a reinforcing agent, and DCP dicumyl peroxide; after mixing, batching and rolling up, discharging from the roller; controlling the roller temperature and roller spacing, after mixing, packaging in a triangular bag, milling, rolling the mixed materials till no mesh exists discharging the material sheet, cooling the rubber sheet to room temperature to obtain the sealing ring material. The invention can increase the using temperature of the material, increase the self lubricity of PTFE, and reduce the frictional force of the product in use; the product has long service life, and does not have phenomena of embrittlement and hardening.
Description
Technical field
The present invention relates to a kind of production method of sealing ring material, specifically reciprocating motion sealing ring material for high-pressure cylinder and production method thereof belong to the rubber item technical field.
Background technology
In prior art, the reciprocating movement sealing circle material of main part that uses at high-voltage oil cylinder mainly contains two kinds of urethanes and pure nitrile rubbers.Because the characteristic of macromolecular material itself, there is following deficiency in above-mentioned bi-material:
Urethanes: 1, owing in the molecular chain ester class group is arranged, thereby produce hydrolysis easily, make product hydrolysis aging, lose performance own; 2, non-refractory, urethanes maximum operation (service) temperature are 80 ℃, and with the raising of temperature, hydrolysis that can accelerated material; 3, because the polymer segment rigidity is large, and elastic properties of materials is poor, and compression set is large, thereby only have the product of increase shrink range just can guarantee sealing property, thereby make the Product Assembly difficulty; 4, lack work-ing life, normal operation is after 1 year, and the phenomenon of embrittlement and sclerosis can appear in product.
Pure nitrile rubber: 1, because polymer segment is soft segment, thereby product hardness is lower, general Shao Shi 83-86 degree, and high voltage performance is relatively poor; 2, for improving the hardness of butadiene acrylonitrile rubber, need a large amount of packing strengthening agents, weighting agent, thereby the rubber unvulcanizate gum content is descended, cause the product poor flexibility; 3, in use easily band is oily for product.
Summary of the invention
The object of the invention is to overcome above-mentioned weak point, thereby a kind of novel material and compound method thereof take butadiene acrylonitrile rubber and the grafting of PTFE (tetrafluoroethylene) physics as main body is provided; The sealing loop material can improve the use temperature of material; The self lubricity of PTFE reduces product frictional force in use; The phenomenon of embrittlement and sclerosis can not appear in long service life.
According to technical scheme provided by the invention, reciprocating motion sealing ring material for high-pressure cylinder comprises following component, and its formula rate is counted by weight:
Nitrile rubber 75-85 part; 60%PTFE ptfe emulsion: 30-40 part; Zinc oxide: 4-6 part; Stearic acid: 1-2 part; Anti-aging agent RD: 1-2 part; Maleic anhydride methacrylate 4-6 part; Carbon black disperser HQ:1-2 part; Strengthening agent: 50-60 part; DCP dicumyl peroxide: 2-3 part; TAIC cyanacrylate 1.5-2.5 part;
Roller temperature, the roll spacing of control opening rubber mixing machine are rolled to nitrile rubber without mesh; It is mixing evenly to add maleic anhydride methacrylate and anti-aging agent RD; Divide several times to add the 60%PTFE ptfe emulsion and be rolled to the film smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, goes out tablet; Tablet makes the premix Graft Adhesive through insulation, cooling; Add zinc oxide; Stearic acid; After TAIC cyanacrylate and carbon black disperser HQ are mixing, add strengthening agent, the DCP dicumyl peroxide; Operate on clot after mixing, lower roll; Control rubber mixing machine roller temperature, roll spacing, mixing after, play the triangle bag, thin-pass, the dancer rools distance, mixing material is rolled to without mesh, goes out film, it is sealing ring material that film is cooled to room temperature.
Described strengthening agent is high abrasion furnace carbon black N330, high structure semi-reinforcing hydrocarbon black N774, spray carbon black, extrudes the mixing thing of two or three among the carbon black N550 soon;
The production method of reciprocating motion sealing ring material for high-pressure cylinder of the present invention, adopt following production stage: its component ratio is counted by weight:
1, the roller temperature with 16 inches opening rubber mixing machines is heated to 80-100 ℃, roll spacing 3-5mm; Add nitrile rubber: 75-85 part; Be rolled to without mesh;
2, in the sizing material of step (1), add the maleic anhydride methacrylate: 4-6 part and anti-aging agent RD: 1-2 part, mixing even;
3, in the mixing material of step (2), slowly divide adding 60%PTFE ptfe emulsion 8-10 time: 30-40 part, keep 80-100 ℃ of roller temperature, roll spacing 3-5mm, thick roller 10-15 minute, to mixing material smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, about operate on clot 2-3 time, make mixing material mixing evenly;
4, keep 80-100 ℃ of mill roller temperature, roll spacing is adjusted to 3-4mm, adds the mixing material of step (3), with opening rubber mixing machine mixing material is rolled to the surface without mesh, goes out tablet, is placed on the flat bed transport vehicle;
5, the tablet that step (4) is gone out is transported to flat bed transport vehicle on 50-70 ℃ the drying room bin, is incubated 3-5 hour, naturally cools to normal temperature, makes the premix Graft Adhesive;
6, the roller temperature with 16 inches opening rubber mixing machines is adjusted to 40-50 ℃, and roll spacing is adjusted to 3-5mm, drops into the premix Graft Adhesive, is rolled to without mesh, adds zinc oxide: 4-6 part; Stearic acid: 1-2 part; TAIC cyanacrylate: 1.5-2.5 part and carbon black disperser HQ:1-2 part; Mixing 1-2 minute, add strengthening agent: 50-60 part is mixing evenly;
7, in the mixing material of step (6), add the DCP dicumyl peroxide: 2-3 part; Mixingly operate on clot 2-3 time about rear, lower roll drops in the charging tray mixing material;
8, the roller temperature of control rubber mixing machine is below 55 ℃, below the roll spacing 1mm, add the mixing material of step (7), play the triangle bag 2-3 time, thin-pass 2-3 time, dancer rools is apart from 5-8mm, and mixing material is rolled to without mesh, goes out film, film is placed on the pond is cooled to room temperature, take out, be deposited on the bin, stand-by.
Nitrile rubber described in the present invention: Japanese JSR N230S, the fine content 35% of propylene, mooney viscosity ML
1+4100 ℃ 56.
The tetrafluoroethylene of PTFE described in the present invention: Shanghai branch office of Daikin fluorine chemical (China) company limited produces, model D210, PTFE content 60%.
Zinc oxide described in the present invention: vulcanization leveller, Zibo sea Hue worker company limited produces zinc oxide content 99.9%, density 5.606.
The HQ of carbon black disperser described in the present invention: easy Dehua, Shanghai worker company limited produces, and behind the adding carbon black disperser HQ, can improve carbon black dispersion, shortens the rubber compounding time, reduces energy consumption, and can improve the sizing material roll banding, improves product surface smooth finish.
The methacrylate of maleic anhydride described in the present invention: Cray Willie (Guangzhou) chemical industry company limited produces, and maleic anhydride content 10% by the sequestering action of a plurality of functional groups on the maleic anhydride methacrylate, plays physics grafting effect.
The cyanacrylate of TAIC described in the present invention: Taizhou plain Huangyan East Sea chemical industry company limited produces, and co-curing agent can improve the cross-linking density of sizing material, effectively reduces sizing material compression set.
The dicumyl peroxide of DCP described in the present invention: additives for plastics Co., Ltd., Factory in granary produces, vulcanizer.
Compared with the prior art the present invention has the following advantages:
The present invention is novel material and the compound method thereof take butadiene acrylonitrile rubber and the grafting of PTFE (tetrafluoroethylene) physics as main body; Introduce the PTFE side chain at flexible butadiene acrylonitrile rubber chain, the rigid chain segment of PTFE makes material that high hardness, elasticity and lower compression set be arranged in the situation of higher gum content; The high thermal resistance of PTFE has improved the use temperature of material; The self lubricity of PTFE has reduced product frictional force in use; The phenomenon of embrittlement and sclerosis can not appear in long service life.
Embodiment
Following the present invention is further described in connection with embodiment:
Embodiment one: the production method of reciprocating motion sealing ring material for high-pressure cylinder of the present invention, and adopt following production stage: its formula rate is counted by weight:
1, the roller temperature with opening rubber mixing machine is heated to 90 ℃, roll spacing 4mm; Drop into nitrile rubber: 80 parts; Sizing material is rolled to without mesh;
2, the sizing material in step (1) adds 5 parts of maleic anhydride methacrylates and anti-aging agent RD: 1.5 parts mixing even;
3, in the mixing material of step (2), slowly divide adding 60%PTFE ptfe emulsion 8-10 time: 35 parts, keep 90 ℃ of roller temperature, roll spacing 4mm, thick roller 12 minutes, to mixing material smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, about operate on clot 2-3 time, make mixing material mixing evenly;
4, keep 90 ℃ of mill roller temperature, roll spacing is adjusted to 3.5mm, drops into the mixing material of step (3), is rolled to surperficially without mesh with the rubber roll of opening rubber mixing machine, and slice is placed on the flat bed transport vehicle;
5, the tablet that step (4) is gone out is transported to flat bed transport vehicle on 60 ℃ the drying room bin, is incubated 4 hours, naturally cools to normal temperature, makes the premix Graft Adhesive;
6, the roller temperature with opening rubber mixing machine is adjusted to 45 ℃, and roll spacing is adjusted to 4mm, drops into the premix Graft Adhesive, is rolled to without mesh, adds zinc oxide: 5 parts; Stearic acid: 1.5 parts; 2 parts of TAIC cyanacrylates and carbon black disperser HQ:1.5 part; Mixing 1.5 minutes, the adding strengthening agent was mixing evenly, and described strengthening agent is 40 parts of high abrasion furnace carbon black N330s; High structure semi-reinforcing hydrocarbon black N77415 part; Repeatedly will fall into the mixing material of mill charging tray and clear away, pour in the sizing material, until redrop without mixing material;
7, in the mixing material of step (6), add the DCP dicumyl peroxide: 2.5 parts; Sneak into and operate on clot 2-3 time about rear, lower roll drops in the charging tray mixing material;
8, the roller temperature of control rubber mixing machine is below 55 ℃, below the roll spacing 1mm, drop into the mixing material of step (7), play the triangle bag 2-3 time, thin-pass 2-3 time, dancer rools is apart from 6.5mm, and mixing material is rolled to without mesh, goes out film, film is placed on the pond is cooled to room temperature, take out, be deposited on the bin, stand-by.
Embodiment two: the production method of reciprocating motion sealing ring material for high-pressure cylinder of the present invention, and adopt following production stage: its formula rate is counted by weight:
1, the roller temperature with 16 inches opening rubber mixing machines is heated to 80 ℃, roll spacing 3mm; Drop into nitrile rubber: 75 parts; Be rolled to without mesh;
2, add the maleic anhydride methacrylate: 4 parts and anti-aging agent RD: 1 part, mixing even;
3, in the mixing material of step (2), slowly divide adding 60%PTFE ptfe emulsion 8-10 time: 30 parts, keep 80 ℃ of roller temperature, roll spacing 3mm, thick roller 10 minutes, to mixing material smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, about operate on clot 2-3 time, make mixing material mixing evenly;
4, keep 80 ℃ of mill roller temperature, roll spacing is adjusted to 3mm, drops into the mixing material of step (3), and mixing material is rolled to the surface without mesh, goes out tablet, is placed on the flat bed transport vehicle;
5, the tablet that step (4) is gone out is transported to flat bed transport vehicle on 50 ℃ the drying room bin, is incubated 3 hours, naturally cools to normal temperature, makes the premix Graft Adhesive;
6, the roller temperature with 16 inches opening rubber mixing machines is adjusted to 40 ℃, and roll spacing is adjusted to 3mm, drops into the premix Graft Adhesive, is rolled to without mesh, adds zinc oxide: 4 parts; Stearic acid: 1 part; TAIC cyanacrylate: 1.5 parts and carbon black disperser HQ:1 part; Mixing 1 minute, add strengthening agent: described strengthening agent was 40 parts of high abrasion furnace carbon black N330s; High structure semi-reinforcing hydrocarbon black N77410 part; Repeatedly will fall into the mixing material of mill charging tray and clear away, pour in the sizing material, until redrop without mixing material;
7, in the mixing material of step (6), add the DCP dicumyl peroxide: 2 parts; Sneak into and operate on clot 2-3 time about rear, lower roll drops in the charging tray mixing material;
8, the roller temperature of control rubber mixing machine is below 55 ℃, below the roll spacing 1mm, drop into the mixing material of step (7), play the triangle bag 2-3 time, thin-pass 2-3 time, dancer rools is apart from 5mm, and mixing material is rolled to without mesh, goes out film, film is placed on the pond is cooled to room temperature, take out, be deposited on the bin, stand-by.
Embodiment three: the production method of reciprocating motion sealing ring material for high-pressure cylinder of the present invention, and adopt following production stage: its formula rate is counted by weight:
1, the roller temperature with 16 inches opening rubber mixing machines is heated to 100 ℃, roll spacing 5mm; Drop into nitrile rubber: 85 parts; Be rolled to without mesh;
2, add the maleic anhydride methacrylate: 6 parts and anti-aging agent RD: 2 parts, mixing even;
3, in the mixing material of step (2), slowly divide adding 60%PTFE ptfe emulsion 8-10 time: 30-40 part, keep 100 ℃ of roller temperature, roll spacing 5mm, thick roller 15 minutes, to mixing material smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, about operate on clot 2-3 time, make mixing material mixing evenly;
4, keep 100 ℃ of mill roller temperature, roll spacing is adjusted to 4mm, drops into the mixing material of step (3), is rolled to the surface without mesh, goes out tablet, is placed on the flat bed transport vehicle;
5, the tablet that step (4) is gone out is transported to flat bed transport vehicle on 70 ℃ the drying room bin, is incubated 5 hours, naturally cools to normal temperature, makes the premix Graft Adhesive;
6, the roller temperature with 16 inches opening rubber mixing machines is adjusted to 50 ℃, and roll spacing is adjusted to 5mm, drops into the premix Graft Adhesive, is rolled to without mesh, adds zinc oxide: 6 parts; Stearic acid: 2 parts; TAIC cyanacrylate: 2.5 parts and carbon black disperser HQ:2 part; Mixing 2 minutes, add strengthening agent, described strengthening agent is high abrasion furnace carbon black N330: 40 parts; High structure semi-reinforcing hydrocarbon black N774:20 part; Repeatedly will fall into the mixing material of mill charging tray and clear away, pour in the sizing material, until redrop without mixing material;
7, in the mixing material of step (6), add the DCP dicumyl peroxide: 3 parts; Sneak into and operate on clot 2-3 time about rear, lower roll drops in the charging tray mixing material;
8, the roller temperature of control rubber mixing machine is below 55 ℃, below the roll spacing 1mm, drop into the mixing material of step (7), play the triangle bag 2-3 time, thin-pass 2-3 time, dancer rools is apart from 8mm, and mixing material is rolled to without mesh, goes out film, film is placed on the pond is cooled to room temperature, take out, be deposited on the bin, stand-by.Vulcanizating glue physical performance of the present invention such as following table:
Claims (3)
1. reciprocating motion sealing ring material for high-pressure cylinder, it is characterized in that: comprise following component, its formula rate is counted by weight:
75-85 parts of paracrils; 60%PTFE ptfe emulsion: 30-40 parts; Zinc oxide: 4-6 parts; Stearic acid: 1-2 parts; Anti-aging agent RD: 1-2 parts; 4-6 parts of maleic anhydride methacrylates; Carbon black disperser HQ:1-2 part; Strengthening agent: 50-60 parts; DCP dicumyl peroxide: 2-3 parts; 1.5-2.5 parts of TAIC cyanacrylates;
Control first roller temperature, the roll spacing of opening rubber mixing machine, paracril is rolled to without mesh; It is mixing evenly to add maleic anhydride methacrylate and anti-aging agent RD; Divide several times to add the 60%PTFE ptfe emulsion and be rolled to the film smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, goes out tablet; Tablet makes the premix Graft Adhesive through insulation, cooling; Add zinc oxide; Stearic acid; After TAIC cyanacrylate and carbon black disperser HQ are mixing, add strengthening agent, the DCP dicumyl peroxide; Operate on clot after mixing, lower roll; Control rubber mixing machine roller temperature, roll spacing, mixing after, play the triangle bag, thin-pass, the dancer rools distance, sizing material is rolled to without mesh, goes out film, it is sealing ring material that film is cooled to room temperature.
2. reciprocating motion sealing ring material for high-pressure cylinder as claimed in claim 1 is characterized in that:
Described strengthening agent is high abrasion furnace carbon black N330, high structure semi-reinforcing hydrocarbon black N774, spray carbon black, extrudes the mixing thing of two or three among the carbon black N550 soon.
3. the production method of a reciprocating motion sealing ring material for high-pressure cylinder, it is characterized in that: adopt following processing step: its component ratio is counted by weight:
(1), the roller temperature with opening rubber mixing machine is heated to 80-100 ℃, roll spacing 3-5mm; Add paracril: 75-85 parts; Be rolled to without the mesh sizing material;
(2), in the sizing material of step (1), add the maleic anhydride methacrylate: 4-6 parts and anti-aging agent RD: 1-2 parts, mixing even;
(3), minute 8-10 adding 60%PTFE ptfe emulsions in the mixing material of step (2): 30-40 parts, 80-100 ℃ of the roller temperature, the roll spacing 3-5mm that keep opening rubber mixing machine, thick roller 10-15 minutes, to mixing material smooth surface, the water evaporation that is about in the 60%PTFE ptfe emulsion is clean, about operate on clot 2-3 times;
(4), keep 80-100 ℃ of the roller temperature of opening rubber mixing machine, roll spacing is adjusted to 3-4mm, adds the mixing material of step (3), with opening rubber mixing machine mixing material is rolled to the surface without mesh, goes out tablet, is placed on the flat bed transport vehicle;
(5), tablet that step (4) is gone out, be transported to flat bed transport vehicle on 50-70 ℃ the drying room bin, be incubated 3-5 hours, naturally cool to normal temperature, make the premix Graft Adhesive;
(6), the roller temperature of opening rubber mixing machine is adjusted to 40-50 ℃, roll spacing is adjusted to 3-5mm, drops into the premix Graft Adhesive, is rolled to without mesh, adds zinc oxide: 4-6 parts; Stearic acid: 1-2 parts; TAIC cyanacrylate: 1.5-2.5 parts and carbon black disperser HQ:1-2 part; Mixing 1-2 minutes, add strengthening agent: 50-60 parts mixing even;
(7), in the mixing material of step (6), add the DCP dicumyl peroxide: 2-3 parts; Mixingly operate on clot 2-3 times about rear, lower roll drops in the charging tray mixing material;
(8), the roller temperature of control opening rubber mixing machine is below 55 ℃, below the roll spacing 1mm, add the mixing material of step (7), play the triangle bag 2-3 times, thin-pass 2-3 times, dancer rools is apart from 5-8mm, and mixing material is rolled to without mesh, goes out film, film is placed on the pond is cooled to room temperature, take out, be deposited on the bin, stand-by.
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| CN 201110285874 CN102408660B (en) | 2011-09-23 | 2011-09-23 | Reciprocating motion sealing ring material for high-pressure cylinder and production method thereof |
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| CN 201110285874 CN102408660B (en) | 2011-09-23 | 2011-09-23 | Reciprocating motion sealing ring material for high-pressure cylinder and production method thereof |
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Families Citing this family (6)
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| CN103183852B (en) * | 2013-04-22 | 2015-04-08 | 安徽库伯密封技术有限公司 | Rubber component material of high-pressure oil seal for hydraulic motor and manufacturing process thereof |
| CN103483639A (en) * | 2013-06-20 | 2014-01-01 | 安徽春辉仪表线缆集团有限公司 | Reciprocating motion sealing ring for high pressure oil cylinders |
| CN105254950A (en) * | 2013-11-01 | 2016-01-20 | 国网河南省电力公司漯河供电公司 | Transformer sealing ring and production method thereof |
| CN107459660A (en) * | 2017-09-18 | 2017-12-12 | 江苏卡欧化工股份有限公司 | A kind of high-performance environment-friendly rubber disperse agent |
| CN108485003A (en) * | 2018-02-12 | 2018-09-04 | 中国北方车辆研究所 | A kind of high pressure of multiple leak oil is hinged sealing mechanism |
| CN113440290B (en) * | 2021-07-09 | 2023-02-03 | 上海驻净电子科技有限公司 | Gland sealing piece for tooth flushing device and manufacturing method thereof |
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| JP4070006B2 (en) * | 2002-05-14 | 2008-04-02 | 株式会社クラベ | Fluorine-containing elastomer composition |
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| JP4070006B2 (en) * | 2002-05-14 | 2008-04-02 | 株式会社クラベ | Fluorine-containing elastomer composition |
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| JP特许第4070006号B2 2008.01.25 |
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