CN203516728U - Graphite sealing ring - Google Patents
Graphite sealing ring Download PDFInfo
- Publication number
- CN203516728U CN203516728U CN201320447782.4U CN201320447782U CN203516728U CN 203516728 U CN203516728 U CN 203516728U CN 201320447782 U CN201320447782 U CN 201320447782U CN 203516728 U CN203516728 U CN 203516728U
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- Prior art keywords
- graphite
- sealing ring
- seal ring
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a graphite sealing ring which comprises a sealing ring body. A thermal insulation protecting layer is arranged on the outer portion of the sealing ring body. The thermal insulation protecting layer is a stainless steel layer. The thickness of the thermal insulation protecting layer is 0.2-0.4mm. According to the graphite sealing ring, the thermal insulation protecting layer is arranged on the outer portion of the sealing ring body so that graphite grain flowing of the sealing ring under the effect of bolt pretension force and high temperature can be avoided, graphite grain loss is avoided, and sealing effectiveness is guaranteed.
Description
Technical field
The utility model relates to a kind of seal ring, relates in particular to a kind of graphite-seal ring.
Background technique
Graphite-seal ring is formed through mold pressing by low-sulphur expanded graphite, and size is accurate, and density can be determined, and without any additional bulking agent or binder, is the ideal filler of valve and various static seals.But under the effect of bolt pretightening and high temperature, can there is flowing of graphite grains in graphite-seal ring, along with the rising of bolt pretightening and temperature, the mobile of graphite grains can be accelerated, and causes graphite grains to run off, graphite grains runs off when serious, will cause seal failure.
Model utility content
The utility model object is that a kind of graphite-seal ring that prevents that graphite grains runs off is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of graphite-seal ring, comprise seal ring body, and the outside of described seal ring body is provided with heat-protective coating.
Preferably, described heat-protective coating is stainless steel lining.
Preferably, the thickness of described heat-protective coating is 0.2mm～0.4 mm.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Graphite-seal ring of the present utility model, because the outside of seal ring body is provided with heat-protective coating, can prevent that seal ring from graphite grains occurring under the effect of bolt pretightening and high temperature and flow, and avoids the loss of graphite grains, has guaranteed the validity of sealing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
The structural representation that accompanying drawing 1 is graphite-seal ring of the present utility model;
Accompanying drawing 2 is the partial enlarged drawing of accompanying drawing 1;
Wherein: 1, seal ring body; 2, heat-protective coating.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Described in the utility model a kind of graphite-seal ring as shown in accompanying drawing 1,2, comprises seal ring body 1, and the outside of described seal ring body 1 is provided with heat-protective coating 2; Described heat-protective coating 2 is stainless steel lining; The thickness of described heat-protective coating 2 is 0.2mm～0.4 mm.
Graphite-seal ring of the present utility model, because the outside of seal ring body is provided with heat-protective coating, can prevent that seal ring from graphite grains occurring under the effect of bolt pretightening and high temperature and flow, and avoids the loss of graphite grains, has guaranteed the validity of sealing.
Below be only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technological scheme of formation, within all dropping on the utility model rights protection scope.
Claims (3)
1. a graphite-seal ring, comprises seal ring body, it is characterized in that: the outside of described seal ring body is provided with heat-protective coating.
2. graphite-seal ring according to claim 1, is characterized in that: described heat-protective coating is stainless steel lining.
3. graphite-seal ring according to claim 1 and 2, is characterized in that: the thickness of described heat-protective coating is 0.2mm～0.4 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447782.4U CN203516728U (en) | 2013-07-25 | 2013-07-25 | Graphite sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320447782.4U CN203516728U (en) | 2013-07-25 | 2013-07-25 | Graphite sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203516728U true CN203516728U (en) | 2014-04-02 |
Family
ID=50375660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320447782.4U Expired - Fee Related CN203516728U (en) | 2013-07-25 | 2013-07-25 | Graphite sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203516728U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10632438B2 (en) * | 2014-10-28 | 2020-04-28 | Wacker Chemie Ag | Fluidized bed reactor and process for producing polycrystalline silicon granules |
-
2013
- 2013-07-25 CN CN201320447782.4U patent/CN203516728U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10632438B2 (en) * | 2014-10-28 | 2020-04-28 | Wacker Chemie Ag | Fluidized bed reactor and process for producing polycrystalline silicon granules |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |