CN103448171A - Technology for preparing O-shaped seal ring - Google Patents
Technology for preparing O-shaped seal ring Download PDFInfo
- Publication number
- CN103448171A CN103448171A CN 201210176249 CN201210176249A CN103448171A CN 103448171 A CN103448171 A CN 103448171A CN 201210176249 CN201210176249 CN 201210176249 CN 201210176249 A CN201210176249 A CN 201210176249A CN 103448171 A CN103448171 A CN 103448171A
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- rubber
- seal ring
- carrying
- vulcanization
- synthetic rubber
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Abstract
The invention discloses a technology for preparing an O-shaped seal ring. The technology comprises the following steps of weighing natural rubber, carbon black, paraffin oil, an acid-base balance agent, eleaostearic acid, an antiager, sulphur, a vulcanizing agent, a lubricant and a vulcanizing assistant required in the formula, carrying out mixing by an internal mixer to obtain synthetic rubber, carrying out open mixing molding of the synthetic rubber to be detected by an open mill, carrying out vulcanization: first-stage vulcanization at a temperature of 160-200 DEG C under the pressure of 120-160 Kgf/cm<2> for 180-480s and second-stage vulcanization treatment on the semi-finished product in an oven at a temperature of 165-175 DEG C for 1.5-2.5h, and carrying out trimming deflashing of the rubber seal ring obtained by the vulcanization to obtain the O-shaped seal ring rough blank.
Description
Technical field
The present invention relates to a kind of sealing ring manufacturing process, particularly a kind of O RunddichtringO manufacturing process.
Background technology
In recent years, along with domestic economy develops fast, high-rise business and civil buildings are more and more, and also requisite key safety facility of the fire-fighting aqueduct of these skyscrapers, the rubber seal of using in the joint of these aqueducts is the most important critical component of its system, sealing ring commonly used has: grommet of fabricated pipe coupling, assembled type pipe joint pipe clip rubber gasket ring, assembled type pipe joint flange rubber seal ring, require it that outstanding media-resistant will be arranged, tear-proof, tensile strength, extensibility preferably, incompressible morphotropism, heat-resisting timeliness, longer service life (more than at least 50 years) etc., and this kind of rubber seal function of current domestic use, service life and security are all undesirable.
How to study rubber seal and manufacturing process thereof that a kind of aqueduct is used, improve rubber seal serviceability in the security against fire facility system, increase the service life, this has become technical problem urgently to be resolved hurrily at present.
Summary of the invention
The object of the present invention is to provide a kind of technique of the O of preparation RunddichtringO.
The objective of the invention is to be achieved through the following technical solutions:
A kind of technique for preparing the O RunddichtringO comprises the following steps:
(1) take the natural rubber of formula regulation, carbon black, paraffin oil, acid-base balance agent, stearic acid, age resistor, sulphur, vulcanizing agent, lubricant, auxiliary curing agent;
(2) be smelt synthetic rubber by banbury;
(3) will detect after synthetic rubber is opened by mill the type of being smelt and be vulcanized;
(4) one step cure: the 120～160Kgf/cm2 that pressurizes, be warming up to 160～200 ℃, the time is within 180～480 seconds, to carry out one step cure,
(5) after one step cure, semi-finished product are put into to baking oven, be warming up to 1650 ℃～175 ℃, the time is 1.5～2.5 hours, carries out the post vulcanization processing;
(6) rubber seal after above-mentioned post vulcanization is carried out to deburring and manufacture the thick embryo of O RunddichtringO.
Preferably, described vulcanization accelerator is cumyl peroxide.
Compared with prior art, the present invention has following advantage:
1, rationally, with low cost, technique is simple for raw material and formula;
2, in the situation that hardness and hot strength remain unchanged basically, improved percentage elongation, the wear extent of sizing material is little, and service life is longer.
The specific embodiment
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only part embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the invention protection.
Embodiment 1
(1) the raw material components proportioning by following weight portion forms: natural rubber 100, carbon black 60, paraffin oil 20, acid-base balance agent 5, stearic acid 0.5, age resistor 3, sulphur 0.25, vulcanizing agent DCP4, lubricant 2, auxiliary curing agent TAIC0.3.
(2) be smelt synthetic rubber by banbury;
(3) will detect after synthetic rubber is opened by mill the type of being smelt and be vulcanized;
(4) one step cure: the 120～160Kgf/cm2 that pressurizes, be warming up to 160 ℃, the time is within 240 seconds, to carry out one step cure,
(5) after one step cure, semi-finished product are put into to baking oven, be warming up to 175 ℃, the time is 2 hours, carries out the post vulcanization processing;
(6) rubber seal after above-mentioned post vulcanization is carried out to deburring and manufacture the thick embryo of O RunddichtringO.
Then carry out deburring etc., can be made into finished product.
Embodiment 2
(1) the raw material components proportioning by following weight portion forms: natural rubber 100, carbon black 60, paraffin oil 20, acid-base balance agent 5, stearic acid 0.5, age resistor 3, sulphur 0.25, vulcanizing agent DCP4, lubricant 2, auxiliary curing agent TAIC0.3.
(2) be smelt synthetic rubber by banbury;
(3) will detect after synthetic rubber is opened by mill the type of being smelt and be vulcanized;
(4) one step cure: pressurization 150Kgf/cm2, be warming up to 170 ℃, the time is within 360 seconds, to carry out one step cure,
(5) after one step cure, semi-finished product are put into to baking oven, be warming up to 170 ℃, the time is 1.8 hours, carries out the post vulcanization processing;
(6) rubber seal after above-mentioned post vulcanization is carried out to deburring and manufacture the thick embryo of O RunddichtringO.
Then carry out deburring etc., can be made into finished product.
Claims (1)
1. a technique for preparing the O RunddichtringO, is characterized in that, comprises the following steps:
(1) take the natural rubber of formula regulation, carbon black, paraffin oil, acid-base balance agent, stearic acid, age resistor, sulphur, vulcanizing agent, lubricant, auxiliary curing agent;
(2) be smelt synthetic rubber by banbury;
(3) will detect after synthetic rubber is opened by mill the type of being smelt and be vulcanized;
(4) one step cure: the 120～160Kgf/cm2 that pressurizes, be warming up to 160～200 ℃, the time is within 180～480 seconds, to carry out one step cure,
(5) after one step cure, semi-finished product are put into to baking oven, be warming up to 165 ℃～175 ℃, the time is 1.5～2.5 hours, carries out the post vulcanization processing;
(6) rubber seal after above-mentioned post vulcanization is carried out to deburring and manufacture the thick embryo of O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210176249 CN103448171A (en) | 2012-05-31 | 2012-05-31 | Technology for preparing O-shaped seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210176249 CN103448171A (en) | 2012-05-31 | 2012-05-31 | Technology for preparing O-shaped seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103448171A true CN103448171A (en) | 2013-12-18 |
Family
ID=49731203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210176249 Pending CN103448171A (en) | 2012-05-31 | 2012-05-31 | Technology for preparing O-shaped seal ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103448171A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104325666A (en) * | 2014-09-28 | 2015-02-04 | 无锡市新颖密封材料厂 | Composite gasket manufacturing technology |
| CN104972584A (en) * | 2014-04-11 | 2015-10-14 | 辽宁省铁岭橡胶工业研究设计院 | Preparation method of anti-explosion rubber seal ring composition |
| CN106256527A (en) * | 2015-06-19 | 2016-12-28 | 镇江耀华密封电器有限公司 | A kind of preparation method of rubber seal |
-
2012
- 2012-05-31 CN CN 201210176249 patent/CN103448171A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104972584A (en) * | 2014-04-11 | 2015-10-14 | 辽宁省铁岭橡胶工业研究设计院 | Preparation method of anti-explosion rubber seal ring composition |
| CN104325666A (en) * | 2014-09-28 | 2015-02-04 | 无锡市新颖密封材料厂 | Composite gasket manufacturing technology |
| CN106256527A (en) * | 2015-06-19 | 2016-12-28 | 镇江耀华密封电器有限公司 | A kind of preparation method of rubber seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131218 |