CN103509210A - Wear-resistant drilling pump valve sealing gasket and its preparation method - Google Patents
Wear-resistant drilling pump valve sealing gasket and its preparation method Download PDFInfo
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- CN103509210A CN103509210A CN201310299736.9A CN201310299736A CN103509210A CN 103509210 A CN103509210 A CN 103509210A CN 201310299736 A CN201310299736 A CN 201310299736A CN 103509210 A CN103509210 A CN 103509210A
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Abstract
The invention discloses a wear-resistant drilling pump valve sealing gasket and a preparation method thereof. The sealing gasket consists of the following raw materials by weight: 50-60 parts of isoprene rubber (SKI-3), 15-25 parts of styrene butadiene rubber (SBR1712), 10-15 parts of PTFE, 10-15 parts of modified nano diamond, 5-10 parts of nano silicon nitride, 4-7 parts of white factice, 2-3 parts of zinc dibutyl dithiocarbamate, 16-22 parts of high abrasion furnace black N330, 3-4 parts of insoluble sulfur powder M-80, 2-3 parts of zinc oxide, 1-2 parts of manganese dioxide, 1-2 parts of stearic acid, 2-3 parts of 2-(2, 4-dinitrophenyl thio) benzothiazole, and 1-2 parts of N-cyclohexylthiophthalimide. Compared to a traditional sealing gasket, the sealing gasket provided by the present invention has the advantages of low friction wear, good resilience and high compressive strength, and can prolong the service life of the product in the use process in the same conditions.
Description
Technical field
The present invention relates to a kind of gasket and preparation method thereof, be specifically related to a kind of wear-resistant Drilling Pump Valve gasket and preparation method thereof.
Background technology
The over-all properties of sealing material plays vital effect to the normal operation of pump valve, and the failure phenomenons such as the expansion of sealing material, be full of cracks, frictional dissipation can cause pump valve to work.Drilling Pump Valve is worked in containing the mud of solid phase particle, and wet abrasive wear and erosive wear are the main wear forms that causes pump valve sealing material to lose efficacy.Therefore be badly in need of a kind of wear-resistant Drilling Pump Valve gasket of exploitation.
Summary of the invention
The object of the present invention is to provide a kind of wear-resistant Drilling Pump Valve gasket and preparation method thereof, improve the wear resistance of gasket, extend its work-ing life.
The technical solution used in the present invention is as follows:
A kind of wear-resistant Drilling Pump Valve gasket, raw material by following weight part is made: polyisoprene rubber (SKI-3) 50-60, styrene-butadiene rubber(SBR) (SBR1712) 15-25, tetrafluoroethylene 10-15, modified Nano diamond 10-15, nano-silicon nitride 5-10, white factice 4-7, zinc dibutyl dithiocarbamate 2-3, high abrasion furnace carbon black N330 16-22, insoluble sulfur powder M-80 3-4, zinc oxide 2-3, Manganse Dioxide 1-2, stearic acid 1-2,2-(2,4-dinitrophenyl sulfo-) benzothiazole 2-3, N-cyclohexylthiophthalimide 1-2.
Described modified Nano diamond preparation method is as follows:
A. take a certain amount of Nano diamond, add the nanometer tantalum carbide of 3-5%, the Magnesium Nitride of Nanometric Size of the nano zircite of 2-3%, 2-3%, the nano barite of the nano-attapulgite of 5-8%, 3-4% mix, at 420-450 ℃, calcine 2-3h, be cooled to after room temperature, add again tetra isopropyl two (the dioctyl phosphorous acid acyloxy) titanic acid ester, the iso-octyl palmitate of 3-4% of 1-2%, the sodium laurylsulfonate of the polyisobutene of 4-6%, 2-3% and the propylene glycol of 5-8%, 3000-5000rpm high speed dispersion 10-15min, dry, pulverize, sieve, stand-by;
B. getting the above-mentioned powder making mixes with weight such as cashew nut oil modified alkyd resins, add the hexamethylenetetramine of 5-10%, the molybdenumdisulphide of the silicon carbide of 3-6%, 2-3%, the yttrium oxide of the lapis amiridis of 1-1.5% and 0.5-1% and the trimethylolpropane trimethacrylate of 4-8%, 2000-3000rpm high-speed stirring 15-20min, dry, pulverize, sieve.
A kind of preparation method of wear-resistant Drilling Pump Valve gasket, comprise the following steps: get polyisoprene rubber, modified Nano diamond, nano-silicon nitride, white factice, zinc oxide, stearic acid and drop in mixing roll mixing 5-10min at 50-60 ℃, discharge, place after 24-36h in proportion with all the other raw materials such as styrene-butadiene rubber(SBR), tetrafluoroethylene, zinc dibutyl dithiocarbamate, high abrasion furnace carbon black N330 and at 80-90 ℃, refine glue 4-6min, time sheet after thin-pass 6-8 time; By vulcanizing press compression moulding under 15-20MPa pressure for film, then carry out twice sulfidizing, the curing temperature of primary vulcanization is controlled at 160-170 ℃, curing time is 6-12min, vulcanize for the second time in baking oven and carry out, curing temperature is 205-220 ℃, and curing time is 2-4h, deburring, check, packing, get product.
Beneficial effect of the present invention:
Nano diamond of the present invention, after inorganic, organically-modified, not only can improve the consistency of itself and rubber, improves its dispersion state in rubber, all right
The present invention adopts the styrene-butadiene rubber(SBR) that polyisoprene rubber, wear resistance, thermotolerance, the ageing resistance of rebound resilience, thermotolerance, excellent in abrasion resistance is good, resistance to solvent, tetrafluoroethylene and the compound blend that high temperature resistant, frictional coefficient is extremely low, can bring into play the advantage of different rubber, bring out one's strengths to make up for one's weaknesses, improve the over-all properties of gasket, Nano diamond of the present invention is after inorganic, organically-modified, not only can improve the consistency of itself and rubber, improve its dispersion state in rubber, thereby improve mechanical property, wear resistance and the high thermal resistance etc. of sealing material.When gasket of the present invention is used for Drilling Pump Valve, compare with conventional seals pad, its frictional wear is low, can under equal conditions, in use extend the work-ing life of product.
Embodiment
a kind of wear-resistant Drilling Pump Valve gasket, raw material by following weight (kg) is made: polyisoprene rubber (SKI-3) 55, styrene-butadiene rubber(SBR) (SBR1712) 20, tetrafluoroethylene 12, modified Nano diamond 15, nano-silicon nitride 6, white factice 5, zinc dibutyl dithiocarbamate 2, high abrasion furnace carbon black N330 18, insoluble sulfur powder M-80 3, zinc oxide 2, Manganse Dioxide 1.5, stearic acid 2,2-(2,4-dinitrophenyl sulfo-) benzothiazole 2, N-cyclohexylthiophthalimide 1.
Described modified Nano diamond preparation method is as follows:
A. take a certain amount of Nano diamond, add 4% nanometer tantalum carbide, 3% nano zircite, 2% Magnesium Nitride of Nanometric Size, 6% nano-attapulgite, 3% nano barite to mix, at 440 ℃, calcine 2h, be cooled to after room temperature, add again 1.5% tetra isopropyl two (dioctyl phosphorous acid acyloxy) titanic acid ester, 3% iso-octyl palmitate, 5% polyisobutene, 2% sodium laurylsulfonate and 6% propylene glycol, 4000rpm high speed dispersion 12min, dry, pulverize, sieve, stand-by;
B. getting the above-mentioned powder making mixes with weight such as cashew nut oil modified alkyd resins, add the yttrium oxide of 8% hexamethylenetetramine, 4% silicon carbide, 2% molybdenumdisulphide, 1% lapis amiridis and 0.6% and 5% trimethylolpropane trimethacrylate, 3000rpm high-speed stirring 15min, dry, pulverize, sieve.
A kind of preparation method of wear-resistant Drilling Pump Valve gasket, comprise the following steps: get polyisoprene rubber, modified Nano diamond, nano-silicon nitride, white factice, zinc oxide, stearic acid and drop in mixing roll mixing 8min at 55 ℃, discharge, place after 28h in proportion with all the other raw materials such as styrene-butadiene rubber(SBR), tetrafluoroethylene, zinc dibutyl dithiocarbamate, high abrasion furnace carbon black N330 and at 85 ℃, refine glue 5min, thin-pass is descended sheet for 6 times afterwards; By vulcanizing press compression moulding under 20MPa pressure for film, then carry out twice sulfidizing, the curing temperature of primary vulcanization is 170 ℃, curing time is 8min, vulcanize for the second time in baking oven and carry out, curing temperature is 210 ℃, and curing time is 3h, deburring, check, packing, get product.
Gasket salient features of the present invention is as shown in the table:
| Project | Index | Experimental result |
| Tensile strength/Mpa | ≥15 | 26.2 |
| Tensile yield/% | ≥400 | 576 |
| Tear strength/KNm -1 | ≥30 | 52.4 |
| Compression set (is compressed 25%, 125 ℃, 24h)/% | ≤35 | 22.1 |
| Wear loss/mm 3 | ≤35 | 22.8 |
| Oil resistance (125 ℃, 168h), volume change/% | ≤10 | 5.2 |
Claims (2)
1. a wear-resistant Drilling Pump Valve gasket, it is characterized in that, raw material by following weight part is made: polyisoprene rubber (SKI-3) 50-60, styrene-butadiene rubber(SBR) (SBR1712) 15-25, tetrafluoroethylene 10-15, modified Nano diamond 10-15, nano-silicon nitride 5-10, white factice 4-7, zinc dibutyl dithiocarbamate 2-3, high abrasion furnace carbon black N330 16-22, insoluble sulfur powder M-80 3-4, zinc oxide 2-3, Manganse Dioxide 1-2, stearic acid 1-2, 2-(2, 4-dinitrophenyl sulfo-) benzothiazole 2-3, N-cyclohexylthiophthalimide 1-2,
Described modified Nano diamond preparation method is as follows:
A. take a certain amount of Nano diamond, add the nanometer tantalum carbide of 3-5%, the Magnesium Nitride of Nanometric Size of the nano zircite of 2-3%, 2-3%, the nano barite of the nano-attapulgite of 5-8%, 3-4% mix, at 420-450 ℃, calcine 2-3h, be cooled to after room temperature, add again tetra isopropyl two (the dioctyl phosphorous acid acyloxy) titanic acid ester, the iso-octyl palmitate of 3-4% of 1-2%, the sodium laurylsulfonate of the polyisobutene of 4-6%, 2-3% and the propylene glycol of 5-8%, 3000-5000rpm high speed dispersion 10-15min, dry, pulverize, sieve, stand-by;
B. getting the above-mentioned powder making mixes with weight such as cashew nut oil modified alkyd resins, add the hexamethylenetetramine of 5-10%, the molybdenumdisulphide of the silicon carbide of 3-6%, 2-3%, the yttrium oxide of the lapis amiridis of 1-1.5% and 0.5-1% and the trimethylolpropane trimethacrylate of 4-8%, 2000-3000rpm high-speed stirring 15-20min, dry, pulverize, sieve.
2. the preparation method of a wear-resistant Drilling Pump Valve gasket as claimed in claim 1, it is characterized in that comprising the following steps: get polyisoprene rubber, modified Nano diamond, nano-silicon nitride, white factice, zinc oxide, stearic acid and drop in mixing roll mixing 5-10min at 50-60 ℃, discharge, place after 24-36h in proportion with all the other raw materials such as styrene-butadiene rubber(SBR), tetrafluoroethylene, zinc dibutyl dithiocarbamate, high abrasion furnace carbon black N330 and at 80-90 ℃, refine glue 4-6min, time sheet after thin-pass 6-8 time; By vulcanizing press compression moulding under 15-20MPa pressure for film, then carry out twice sulfidizing, the curing temperature of primary vulcanization is controlled at 160-170 ℃, curing time is 6-12min, vulcanize for the second time in baking oven and carry out, curing temperature is 205-220 ℃, and curing time is 2-4h, deburring, check, packing, get product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310299736.9A CN103509210A (en) | 2013-07-17 | 2013-07-17 | Wear-resistant drilling pump valve sealing gasket and its preparation method |
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| CN201310299736.9A CN103509210A (en) | 2013-07-17 | 2013-07-17 | Wear-resistant drilling pump valve sealing gasket and its preparation method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482182A (en) * | 2015-12-28 | 2016-04-13 | 张桂华 | Formula and preparation method of synthetic rubber with low compressibility |
| CN105802046A (en) * | 2016-05-11 | 2016-07-27 | 戴婷婷 | Wearing-resistant antibacterial rubber plate and preparation method thereof |
| CN106234340A (en) * | 2016-08-04 | 2016-12-21 | 苏州灵垦农业科技有限公司 | A kind of wear-resistant intelligentized pesticide spraying machine people |
| CN106397853A (en) * | 2016-08-30 | 2017-02-15 | 安徽省宁国市宁康密封件有限公司 | Novel wear resistant rubber and preparation method thereof |
| CN106432819A (en) * | 2016-08-30 | 2017-02-22 | 安徽省宁国市宁康密封件有限公司 | Novel anti-aging rubber and preparation method thereof |
| CN108017864A (en) * | 2017-12-07 | 2018-05-11 | 安徽新欧电子科技有限公司 | A kind of LED light gasket |
| CN108517111A (en) * | 2018-04-18 | 2018-09-11 | 安徽斯瑞尔阀门有限公司 | A kind of composite material and preparation method for valve seal |
| CN109467763A (en) * | 2018-12-06 | 2019-03-15 | 铜陵新创流体科技有限公司 | A kind of offshore oil probing pipeline valve gasket seal |
| CN110982129A (en) * | 2019-12-27 | 2020-04-10 | 安徽银龙泵阀股份有限公司 | Wear-resistant pump valve sealing gasket material |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105482182A (en) * | 2015-12-28 | 2016-04-13 | 张桂华 | Formula and preparation method of synthetic rubber with low compressibility |
| CN105802046A (en) * | 2016-05-11 | 2016-07-27 | 戴婷婷 | Wearing-resistant antibacterial rubber plate and preparation method thereof |
| CN106234340A (en) * | 2016-08-04 | 2016-12-21 | 苏州灵垦农业科技有限公司 | A kind of wear-resistant intelligentized pesticide spraying machine people |
| CN106234340B (en) * | 2016-08-04 | 2020-07-31 | 台州市黄岩八极果蔬专业合作社 | Wear-resistant intelligent pesticide spraying robot |
| CN106397853A (en) * | 2016-08-30 | 2017-02-15 | 安徽省宁国市宁康密封件有限公司 | Novel wear resistant rubber and preparation method thereof |
| CN106432819A (en) * | 2016-08-30 | 2017-02-22 | 安徽省宁国市宁康密封件有限公司 | Novel anti-aging rubber and preparation method thereof |
| CN108017864A (en) * | 2017-12-07 | 2018-05-11 | 安徽新欧电子科技有限公司 | A kind of LED light gasket |
| CN108517111A (en) * | 2018-04-18 | 2018-09-11 | 安徽斯瑞尔阀门有限公司 | A kind of composite material and preparation method for valve seal |
| CN109467763A (en) * | 2018-12-06 | 2019-03-15 | 铜陵新创流体科技有限公司 | A kind of offshore oil probing pipeline valve gasket seal |
| CN110982129A (en) * | 2019-12-27 | 2020-04-10 | 安徽银龙泵阀股份有限公司 | Wear-resistant pump valve sealing gasket material |
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