CN101963227A - Sealing ring and processing method thereof - Google Patents
Sealing ring and processing method thereof Download PDFInfo
- Publication number
- CN101963227A CN101963227A CN 201010273965 CN201010273965A CN101963227A CN 101963227 A CN101963227 A CN 101963227A CN 201010273965 CN201010273965 CN 201010273965 CN 201010273965 A CN201010273965 A CN 201010273965A CN 101963227 A CN101963227 A CN 101963227A
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- fluoroplastic
- silicon rubber
- sealing ring
- casing
- sleeve pipe
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Abstract
The invention relates to a sealing ring and a processing method thereof. The sealing ring comprises a casing (1) prepared by fluoroplastic-46 and a silicon rubber strip (2) filled in the casing. The processing method comprises the following steps: (1) sheathing the silicon rubber strip in the casing prepared by the fluoroplastic-46; (2) splicing and forming the silicon rubber strips into the required shape; (3) welding the casing prepared by the fluoroplastic-46 together at high temperature; and (4) carrying out thermal-shaping treatment on the casing. By making full use of good performances of the fluoroplastic-46 and the silicon rubber, the sealing ring, compared with the sealing ring prepared by common materials, has the characteristics of corrosion resistance, good elasticity and high-temperature and low-temperature resistance, and the novelty and practicability are obvious.
Description
Technical field
The present invention relates to a kind of seal ring, particularly a kind of inner seal ring that loads stuffing belongs to the chemical materials processing technique field.
Background technique
In equipment such as various machineries, chemical industry, metallurgy and pharmacy,, need between equipment interface, provide effective seal in order to prevent the seepage of liquids and gases.For this reason, generally adopt various seal rings as seal element.Because seal ring usually uses under harsh rugged environment, so need possess abilities such as anticorrosive, high temperature resistant.China's model utility 88204281.5 discloses a kind of circular groove RunddichtringO of plane sealing, can be used in general machinery, electrical equipment and the chemical industry equipment.This seal ring is provided with several circular grooves with the enhanced leaktightness effect on its annular surface.But because its material that adopts is general solid elastic material rubber, thus corrosion resistance a little less than, and aging easily, thus cause the sealing effect variation.
Summary of the invention
Purpose of the present invention just provides a kind of seal ring of being made by corrosion resistance and all very strong material of elasticity.
Another object of the present invention provides a kind of method of making this seal ring.
According to the present invention, the seal ring that provides comprises: the sleeve pipe of being made by the fluoroplastic 46 material; And the silicon rubber bar that is seated in inside pipe casing.
According to the present invention, the seal ring manufacture method that provides may further comprise the steps:
1, silicon rubber bar is inserted in the sleeve pipe that the fluoroplastic 46 material makes;
2, the silicon rubber bar splicing is shaped to required shape;
3, the sleeve pipe of at high temperature the fluoroplastic 46 material being made welds;
4, above-mentioned sleeve pipe being carried out hot shaping handles.
We know, silicone rubber is a kind of novel macromolecular material, fabulous high temperature resistant (250-300 ℃) and low temperature resistant (40-60 ℃) performance are arranged, good physiological stability is arranged, and can stand repeated multiple times harshness and conditions for sterilization, has splendid rebound elasticity, permanent deformation little (200 ℃ 48 hours be not more than 50%), breakdown voltage big (being 20-25KV/mm), anti-ozone, anti-ultraviolet, characteristics such as radiation hardness, some special silicone rubber also has properties such as the anti-solvent of oil resistant, and for example: fluorosioloxane rubber has the excellent oil resistance energy, and phenylene silicone rubber has the performance of good high temperature resistant radiation.In addition, silicone rubber also has good good electric barrier communication and surface property, thereby suitable for making electric wire, cable, lead wire and water proof material.
And fluoroplastic of the present invention are a kind of (per) fluoropolymers that made by tetrafluoroethylene radical polymerization, and it has the repetitive linearity molecular structure, is crystalline polymer, and fusing point is approximately 631 ℃, and density is 2.13-2.19 gram/cubic centimetre.Because it has excellent chemical resistance, so its mechanical property from low temperature to high temperature is all fine.
The present invention has made full use of the excellent properties of fluoroplastic and silicone rubber, therefore described seal ring possessed the common material seal ring not available corrosion-resistant, elasticity is excellent, the performance of high-low temperature resistant, its novelty and practicability are apparent.
Figure of description
Fig. 1 is a generalized section of the present invention, and 1 is that fluoroplastic, 2 are silicone rubber among the figure.
Embodiment
In the present invention, the sleeve pipe of seal ring adopts fluorine 46 materials to make.This sleeve pipe adopts the expressing technique preparation, and the annular space of fluoroplastic 46 material by being made up of mouth mould and core forms pipe, by typing and cooling, obtains any surface finish, size and geometrical shape sleeve pipe accurately again.In the present invention, method for shaping is to adopt the external diameter typing, and promptly the pipe through extruding utilizes pressure reduction to make pipe be close to the typing sleeve lining, thereby obtains external diameter sleeve pipe accurately by an internal diameter and the identical typing sleeve of cover external diameter of pipe.In order to cause pressure reduction, can in pipe, feed pressurized air, also can outside pipe, cause negative pressure.In the present invention, adopt silicone rubber as the stuffing in the sleeve pipe.Silicone rubber is a kind of specific rubber, can adopt the apparatus processing of rubber mill.Be placed on rubber open or internal rubber mixer in plasticate, it is mixing together and extrude to add acid-acceptor, filler and vulcanzing agent, sulfuration obtains finished product then.Silicon rubber bar equally also utilizes expressing technique to make, and repeats no more herein.As shown in Figure 1, be the cross section of the sleeve pipe made of fluoroplastic 46 with hatched annular portion among the figure, and dash area is a silicon rubber bar.At first silicon rubber bar is inserted in the sleeve pipe that the fluoroplastic 46 material makes, obtains cross-section structure as shown in Figure 1.Then the silicon rubber bar splicing is shaped to required shape, for example annular etc.The sleeve pipe of at high temperature the fluoroplastic 46 material being made welds then.At last above-mentioned sleeve pipe is carried out hot shaping and handle, thereby obtain any surface finish, smooth seal ring.
Claims (2)
1. a seal ring is characterized in that: comprise sleeve pipe of being made by the fluoroplastic 46 material (1) and the silicon rubber bar (2) that is seated in inside pipe casing.
2. the processing method of a seal ring is characterized in that this method may further comprise the steps:
1. silicon rubber bar is inserted in the sleeve pipe that the fluoroplastic 46 material makes;
2. the silicon rubber bar splicing is shaped to required shape;
3. the sleeve pipe of at high temperature the fluoroplastic 46 material being made welds;
4. above-mentioned sleeve pipe being carried out hot shaping handles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010273965 CN101963227A (en) | 2010-09-07 | 2010-09-07 | Sealing ring and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010273965 CN101963227A (en) | 2010-09-07 | 2010-09-07 | Sealing ring and processing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101963227A true CN101963227A (en) | 2011-02-02 |
Family
ID=43516234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010273965 Pending CN101963227A (en) | 2010-09-07 | 2010-09-07 | Sealing ring and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101963227A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330164A (en) * | 2011-07-05 | 2012-01-25 | 吴江朗科化纤有限公司 | Reserved hole design method for annular blowing spinning gasket |
| CN104358872A (en) * | 2014-12-03 | 2015-02-18 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
| CN106953108A (en) * | 2017-05-04 | 2017-07-14 | 江苏氢电新能源有限公司 | A kind of hydrogen-oxygen proton exchange membrane fuel cell sealing structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277575A (en) * | 1997-10-27 | 2000-12-20 | 大金工业株式会社 | Perfluororubber laminate and process for prodcing the same |
| CN1352357A (en) * | 2000-11-09 | 2002-06-05 | 上海亿冈五金密封材料有限公司 | Seal ring and its producing method |
| CN201301958Y (en) * | 2008-11-18 | 2009-09-02 | 丹东一正密封有限公司 | Composite sealing O-shaped ring |
-
2010
- 2010-09-07 CN CN 201010273965 patent/CN101963227A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277575A (en) * | 1997-10-27 | 2000-12-20 | 大金工业株式会社 | Perfluororubber laminate and process for prodcing the same |
| CN1352357A (en) * | 2000-11-09 | 2002-06-05 | 上海亿冈五金密封材料有限公司 | Seal ring and its producing method |
| CN201301958Y (en) * | 2008-11-18 | 2009-09-02 | 丹东一正密封有限公司 | Composite sealing O-shaped ring |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330164A (en) * | 2011-07-05 | 2012-01-25 | 吴江朗科化纤有限公司 | Reserved hole design method for annular blowing spinning gasket |
| CN104358872A (en) * | 2014-12-03 | 2015-02-18 | 上海康大橡胶制品制造有限公司 | O-shaped ring |
| CN106953108A (en) * | 2017-05-04 | 2017-07-14 | 江苏氢电新能源有限公司 | A kind of hydrogen-oxygen proton exchange membrane fuel cell sealing structure |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110202 |