CN103408811A - Ultra-large mud pump shaft L-shaped sealing element rubber - Google Patents
Ultra-large mud pump shaft L-shaped sealing element rubber Download PDFInfo
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- CN103408811A CN103408811A CN2013102823691A CN201310282369A CN103408811A CN 103408811 A CN103408811 A CN 103408811A CN 2013102823691 A CN2013102823691 A CN 2013102823691A CN 201310282369 A CN201310282369 A CN 201310282369A CN 103408811 A CN103408811 A CN 103408811A
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Abstract
The invention relates to an ultra-large mud pump shaft L-shaped sealing element rubber which is prepared from butadiene-acrylonitrile rubber 220.240, sulfur, accelerator, peroxide, auxiliary crosslinking agent, nano zinc oxide, zinc stearate, anti-aging agent, carbon black, process oil DOP and microcrystalline wax. The invention has the advantages of high wear resistance, high strength, high pressure resistance, shock resistance and deformation resistance, and is superior to the foreign products; the service life is obviously prolonged, reaching 300 days; the performance indexes are far beyond the Chinese Standard; especially the compression deformation, which is the elastic recovery capacity after long-time stress of the rubber material, is the main index for judging the sealing property; and the Chinese technical level of the compression deformation is just or slightly beyond the Chinese Standard, but the compression deformation of the invention is down to 10 below.
Description
Technical field
The invention belongs to field of sealing technology, relate to the sealing member of slush pump pump shaft, especially a kind of ultra-large type slush pump pump shaft L-type seal piece size.
Background technology
What the Dredge Pump's Wellendichtring adopted is the L-type sealing member, is sediment and slurry because of snagboat by tactile medium, environment for use is severe, damage type shows that serious wear, lip are torn, waist ruptures, life-span generally about 7 days, dependence on import for a long time, imported product (German IHC produces), General Life about 10 days, the product-free standard.
By retrieval, find following two pieces of relevant patent documents:
1, a kind of high durometer rubber seal piece size (CN102993478A), its rubber raw materials component and weight proportion are chosen as the Chinese name of 120～150 parts of 1# natural rubbers, 2～3 parts, sulphur, 4～6 parts, zinc oxide, 2～4 parts of stearic acid, 1～1.2 part, paraffin, 10～12 parts of Stockholm tars, 80～100 parts of spray carbon blacks, 20～40 parts of thermally oxidized blacks, altax: 2,2'-dithio Dibenzo thiazole, the Chinese name of 1～1.2 part of molecular formula: C14H8N2S4, antioxidant D: N-phenyl-2-naphthylamine, 1～1.2 part of molecular formula: C16H13N.
2, a kind of oil-resisting heat-resisting seal piece size and preparation method thereof (CN102585315A), the weight part of its constitutive material is: fourth NBR360675-85, NBR270775-85, sulphur 0.7-0.9, magnesium oxide 3-4, zinc oxide 7-9, Zinic stearas 1-2, anti-aging agent RD 2-4, antioxidant MB 1-2, Microcrystalline Wax 1.5-1.7, rubber processing aids WB2121.7-1.9, carbon black N55095-105, carbon black N33048-52, dioctyl ester 55-65, altax 2.3-2.5, Vulcanization accelerator TMTD 1.5-1.7, acceterator TE TD1.5-1.7.
By technical characterictic, contrast, above-mentioned patent document and the present patent application have relatively big difference.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, propose a kind of high abrasion, high strength, high pressure resistant, shock-resistant, anti-distortion, long ultra-large type slush pump pump shaft L-type seal piece size of life-span.
The objective of the invention is to be achieved through the following technical solutions:
A kind of ultra-large type slush pump pump shaft L-type seal piece size, its raw material forms and parts by weight are respectively:
And described promotor is the mixture of promotor TT and accelerant CZ, its parts by weight are respectively promotor TT 0.5-2, accelerant CZ 0.5-1.5.
And described anti-aging agent is the mixture of anti-aging agent RD and antioxidant 4010NA, its parts by weight are respectively anti-aging agent RD 1-2, antioxidant 4010NA 1-2.
And described carbon black is the mixture of carbon black N550, carbon black N660 and carbon black N990, its parts by weight are respectively carbon black N550 30-50, carbon black N660 30-50, carbon black N990 20-40.
Advantage of the present invention and positively effect are:
1, the present invention is owing to making adding of superoxide and glue connection auxiliary agent sizing material unvulcanized part, molecule in sulfidation be sulfided into the two key chains of C=C by superoxide and glue connection auxiliary agent, thereby make this sizing material almost completely vulcanize and formed more stable molecular structure, effect is very obvious, makes this sizing material reach the effect of high abrasion, high strength, high pressure resistant, shock-resistant, anti-distortion.
2, high abrasion of the present invention, high strength, high pressure resistant, shock-resistant, anti-distortion, be better than external product, improve work-ing life obviously, reach 300 days, property indices is all far beyond GB, particularly compression set, it is the permanent elastic recovery capability after stressed of elastomeric material, be the leading indicator of sealing property quality, domestic state of the art namely reaches or slightly surpasses GB, and the present invention is minimum reaching below 10 aspect compression set.
Embodiment
Below by specific embodiment, the present invention is described in further detail.It should be noted that, the present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention with this.
Embodiment 1:
A kind of ultra-large type slush pump pump shaft L-type seal piece size, its raw material formation and parts by weight thereof are as follows:
The preparation method of the present embodiment comprises the steps:
(1) banburying: the paracril raw material is put into to Banbury mixer, heated gradually 25 minutes, when temperature reached 110 ℃, Banbury mixer started to discharge broken-(down)rubber, after discharge under mill sheet, park, cooling 24 hours;
(2) mixing: as to join again above-mentioned cooled broken-(down)rubber in Banbury mixer, add nano zine oxide, Zinic stearas (SA), anti-aging agent class (anti-aging agent RD and anti-aging agent (4010NA)), Microcrystalline Wax, additional crosslinker (is silicon 69, effect is vulcanization of rubber auxiliary agent), after mixing 3 minutes, after again three kinds of carbon blacks being mixed, add at twice wherein mixing, the method that adds of carbon black is: first added 2/3 carbon black mixing 2 minutes, add again residue 1/3 carbon black, turned refining 3 minutes, add again dioctyl ester fully after mixing 3 minutes, when temperature reaches 85 ℃, start discharge, after formed mixing materials discharge under mill sheet, cooled and stored is standby more than 4 hours.
(3) sulfuration: above-mentioned mixing materials is dropped in mill, then sulphur, promotor class (two promotor are mixed) are added in rubber unvulcanizate, thin-pass 3-5 is all over descending sheet to deposit, and sizing material prepares complete, standby.
(4) before putting into production use, the processing temperature of mill is controlled to 80 ℃, then adds dibenzoyl peroxide, evenly rear thin-pass to be mixed 3 times, can form finished product, standby.
Embodiment 2:
A kind of ultra-large type slush pump pump shaft L-type seal piece size, its raw material formation and parts by weight thereof are as follows:
| ? | The oil sealing GB | ? | L-type sealing measured performance |
The preparation method of the present embodiment comprises the steps
(1) banburying: the paracril raw material is put into to Banbury mixer, heated gradually 15 minutes, when temperature reached 120 ℃, Banbury mixer started to discharge broken-(down)rubber, after discharge under mill sheet, park, cooling 24 hours;
(2) mixing: as to join again above-mentioned cooled broken-(down)rubber in Banbury mixer, add nano zine oxide, Zinic stearas, anti-aging agent class (anti-aging agent RD and anti-aging agent (4010NA)), Microcrystalline Wax, additional crosslinker (effect is vulcanization of rubber auxiliary agent), after mixing 4 minutes, after again three kinds of carbon blacks being mixed, add at twice wherein mixing, the method that adds of carbon black is: first added 2/3 carbon black mixing 3 minutes, add again residue 1/3 carbon black, turned refining 2 minutes, add again dioctyl ester fully after mixing 3 minutes, when temperature reaches 90 ℃, start discharge, after formed mixing materials discharge under mill sheet, cooled and stored is standby more than 4 hours.
(3) sulfuration: above-mentioned mixing materials is dropped in mill, then sulphur, promotor class (two promotor are mixed) are added in rubber unvulcanizate, thin-pass 3-5 is all over descending sheet to deposit, and sizing material prepares complete, standby.
(4) before putting into production use, the processing temperature of mill is controlled to 80 ℃, then adds dibenzoyl peroxide, evenly rear thin-pass to be mixed 3 times, can form finished product, standby.
Main performance index measured data of the present invention and domestic general sealing article standard are as follows:
| Tensile strength at yield | 12MPa | Tensile strength at yield | 19MPa |
| Elongation | 150％ | Elongation | 350％ |
| Hardness | 70±5 | Hardness | 70 |
| Aging | ≥75±5 | Aging | ≥73 |
| Compression set | ≤40 | Compression set | ≤10 |
| Media-resistant | Water, mineral oil | Media-resistant | Seawater |
Claims (4)
1. ultra-large type slush pump pump shaft L-type seal piece size is characterized in that: its raw material forms and parts by weight are respectively:
2. a kind of ultra-large type slush pump pump shaft L-type seal piece size according to claim 1, it is characterized in that: described promotor is the mixture of promotor TT and accelerant CZ, its parts by weight are respectively promotor TT 0.5-2, accelerant CZ 0.5-1.5.
3. a kind of ultra-large type slush pump pump shaft L-type seal piece size according to claim 1, it is characterized in that: described anti-aging agent is the mixture of anti-aging agent RD and antioxidant 4010NA, and its parts by weight are respectively anti-aging agent RD 1-2, antioxidant 4010NA 1-2.
4. a kind of ultra-large type slush pump pump shaft L-type seal piece size according to claim 1, it is characterized in that: described carbon black is the mixture of carbon black N550, carbon black N660 and carbon black N990, its parts by weight are respectively carbon black N550 30-50, carbon black N660 30-50, carbon black N990 20-40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282369.1A CN103408811B (en) | 2013-07-08 | 2013-07-08 | Ultra-large mud pump shaft L-shaped sealing element rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282369.1A CN103408811B (en) | 2013-07-08 | 2013-07-08 | Ultra-large mud pump shaft L-shaped sealing element rubber |
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| Publication Number | Publication Date |
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| CN103408811A true CN103408811A (en) | 2013-11-27 |
| CN103408811B CN103408811B (en) | 2015-07-15 |
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| CN201310282369.1A Active CN103408811B (en) | 2013-07-08 | 2013-07-08 | Ultra-large mud pump shaft L-shaped sealing element rubber |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756041A (en) * | 2013-12-13 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | High impact-resistance rubber seal cup material |
| CN104151641A (en) * | 2014-07-15 | 2014-11-19 | 宁国天运橡塑制品有限公司 | Oil-resistant sealing ring |
| CN104163955A (en) * | 2014-07-16 | 2014-11-26 | 宁国天运橡塑制品有限公司 | Automotive damping rubber |
| CN104761768A (en) * | 2015-04-22 | 2015-07-08 | 深圳科创新源工业材料有限公司 | Cold-contraction type cable terminal waterproof antifouling attachment and manufacturing method thereof |
| CN111100340A (en) * | 2019-12-12 | 2020-05-05 | 中交上海航道装备工业有限公司 | Dredge pump and high-pressure flushing pump shaft seal rubber seal ring and preparation method thereof |
| CN117362778A (en) * | 2023-10-27 | 2024-01-09 | 山西泰宝科技有限公司 | Sealing ring rubber compound special for hydraulic system and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101717531A (en) * | 2009-11-25 | 2010-06-02 | 青岛开世密封工业有限公司 | Sealing sleeve for locomotive damper and preparation method thereof |
| CN101891907A (en) * | 2010-07-14 | 2010-11-24 | 西南石油大学 | Multifunctional nano-ZnO reinforced rubber |
| CN102167852A (en) * | 2010-02-26 | 2011-08-31 | 储俊华 | Fire-retardant and wear-resisting rubber composition |
| CN102336936A (en) * | 2010-07-14 | 2012-02-01 | 江苏华阳重工科技股份有限公司 | Rubber for ship sealing rings |
-
2013
- 2013-07-08 CN CN201310282369.1A patent/CN103408811B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717531A (en) * | 2009-11-25 | 2010-06-02 | 青岛开世密封工业有限公司 | Sealing sleeve for locomotive damper and preparation method thereof |
| CN102167852A (en) * | 2010-02-26 | 2011-08-31 | 储俊华 | Fire-retardant and wear-resisting rubber composition |
| CN101891907A (en) * | 2010-07-14 | 2010-11-24 | 西南石油大学 | Multifunctional nano-ZnO reinforced rubber |
| CN102336936A (en) * | 2010-07-14 | 2012-02-01 | 江苏华阳重工科技股份有限公司 | Rubber for ship sealing rings |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756041A (en) * | 2013-12-13 | 2014-04-30 | 芜湖佳诚电子科技有限公司 | High impact-resistance rubber seal cup material |
| CN104151641A (en) * | 2014-07-15 | 2014-11-19 | 宁国天运橡塑制品有限公司 | Oil-resistant sealing ring |
| CN104163955A (en) * | 2014-07-16 | 2014-11-26 | 宁国天运橡塑制品有限公司 | Automotive damping rubber |
| CN104761768A (en) * | 2015-04-22 | 2015-07-08 | 深圳科创新源工业材料有限公司 | Cold-contraction type cable terminal waterproof antifouling attachment and manufacturing method thereof |
| CN111100340A (en) * | 2019-12-12 | 2020-05-05 | 中交上海航道装备工业有限公司 | Dredge pump and high-pressure flushing pump shaft seal rubber seal ring and preparation method thereof |
| CN111100340B (en) * | 2019-12-12 | 2022-05-31 | 中交上海航道装备工业有限公司 | Dredge pump and high-pressure flushing pump shaft seal rubber seal ring and preparation method thereof |
| CN117362778A (en) * | 2023-10-27 | 2024-01-09 | 山西泰宝科技有限公司 | Sealing ring rubber compound special for hydraulic system and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN103408811B (en) | 2015-07-15 |
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