CN205207654U - Closing plate - Google Patents
Closing plate Download PDFInfo
- Publication number
- CN205207654U CN205207654U CN201521126401.8U CN201521126401U CN205207654U CN 205207654 U CN205207654 U CN 205207654U CN 201521126401 U CN201521126401 U CN 201521126401U CN 205207654 U CN205207654 U CN 205207654U
- Authority
- CN
- China
- Prior art keywords
- plate
- polyfluortetraethylene
- tetrafluoro
- teflon
- sealing
- Prior art date
- 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
Links
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- Sealing Material Composition (AREA)
- Gasket Seals (AREA)
Abstract
The utility model relates to a closing plate, its characterized in that: including being located polyfluortetraethylene plate (1) in intermediate level, setting up at polyfluortetraethylene plate upper seal face and fuse with polyfluortetraethylene plate (1) and expand teflon plate (2) on and set up at polyfluortetraethylene plate lower seal face and the lower inflation teflon plate (3) that fuses with polyfluortetraethylene plate (1), on expand the upper surface of teflon plate (2) and do closing plate's upper seal face, the lower surface of teflon plate (3) of expanding down does closing plate's lower seal face. Compared with the prior art, the utility model has the advantages of: compound the closing plate that obtains with polyfluortetraethylene plate and inflation teflon plate and having kept inflation teflon plate's compliance, the while has also kept resistance to acids and bases and the high temperature resistance that polyfluortetraethylene plate is good, gained closing plate's sealed face is soft, is fit for the sealed of unevenness surface, has sufficient intensity again, compression resilience will improve much than solitary polyfluortetraethylene plate fluorine or inflation teflon plate fluorine to sealing performance has also been improved.
Description
Technical field
The utility model relates to a kind of sealing plate.
Background technique
Teflon (English abbreviation is PTFE, and Chinese is called for short tetrafluoro), be commonly called as King, PH:0 ~ 14, the chemical mediator that almost ability is all, the high temperature of ability 260 degrees Celsius, is widely used in field of sealing technology again.General density is 2.1 ~ 2.3g/cm
3tetrafluoro plate, be often called tetrafluoro hardboard, the gasket seal compression resilience adopting this tetrafluoro plate directly to carry out cutting is poor, is not suitable for the place that flange formation degree is poor.In addition due to the cold flow characteristic of tetrafluoro, in the place that temperature alternating is violent, tetrafluoro plate can embrittlement hardening, thus cause and seal unsuccessfully.Therefore, people develop again expansion tetrafluoro plate, and density is 0.7 ~ 0.9g/cm
3, expansion tetrafluoro plate soft compressible, is applicable to the place that flanged surface is not too smooth, and expansion tetrafluoro plate overcomes the characteristic of tetrafluoro cold flow, thus serves good sealability.But intensity and the compression resistance of expansion tetrafluoro plate are more far short of what is expected again than tetrafluoro hardboard, can not be applied to the place that pressure is relatively high, and thermal diffusivity are poor.
Model utility content
Technical problem to be solved in the utility model be provide that a kind of sealing surface is soft for above-mentioned prior art, the sealing that can be applicable to out-of-flatness surface and the resistance to acids and bases having again enough intensity, had, the sealing plate of heat-resisting quantity.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of sealing plate, it is characterized in that: comprise the polyfluortetraethylene plate being positioned at mesosphere, be arranged on sealing surface on polyfluortetraethylene plate and the upper expansion tetrafluoro plate be connected with polyfluortetraethylene plate, and be arranged on polyfluortetraethylene plate lower sealing surface and the lower expansion tetrafluoro plate be connected with polyfluortetraethylene plate; The upper surface of described upper expansion tetrafluoro plate be described sealing plate upper sealing surface, the lower surface of described lower expansion tetrafluoro plate be described sealing plate lower sealing surface.
As improvement, the thickness of the polyfluortetraethylene plate in described mesosphere is 0.5 ~ 2mm.
Improve, the thickness of described upper expansion tetrafluoro plate and lower expansion tetrafluoro plate is 0.5 ~ 1.5mm again.
Improve again, between described upper expansion tetrafluoro plate and polyfluortetraethylene plate, be also pasted with stone mill coating, between described lower expansion tetrafluoro plate and polyfluortetraethylene plate, be also pasted with stone mill coating.Stone mill has high temperature resistant, acid resistant alkali, good heat dissipation, is a kind of ideal sealing material.
Compared with prior art, the utility model has the advantage of: polyfluortetraethylene plate and expansion tetrafluoro plate are carried out the ductility that sealing plate that compound obtains maintains expansion tetrafluoro plate, also maintain the good resistance to acids and bases of polyfluortetraethylene plate and heat-resisting quantity simultaneously; Gained sealing plate sealing surface soft, be applicable to the sealing on out-of-flatness surface, have again enough intensity; Compression resilience will improve much than independent polyfluortetraethylene plate fluorine or expansion tetrafluoro plate fluorine, thus also improves sealability.
Accompanying drawing explanation
Fig. 1 be in the utility model embodiment one sealing plate sectional view.
Fig. 2 be in the utility model embodiment two sealing plate sectional view.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Embodiment one
Sealing plate as shown in Figure 1, comprise the polyfluortetraethylene plate 1 being positioned at mesosphere, be arranged on sealing surface on polyfluortetraethylene plate and the upper expansion tetrafluoro plate 2 be connected with polyfluortetraethylene plate 1, and be arranged on polyfluortetraethylene plate lower sealing surface and the lower expansion tetrafluoro plate 3 be connected with polyfluortetraethylene plate 1; The upper surface of upper expansion tetrafluoro plate 2 be described sealing plate upper sealing surface, the lower surface of lower expansion tetrafluoro plate 3 be described sealing plate lower sealing surface.
Wherein the thickness range of choices of the polyfluortetraethylene plate in mesosphere is 0.5 ~ 2mm; The thickness range of choices of upper expansion tetrafluoro plate and lower expansion tetrafluoro plate is 0.5 ~ 1.5mm.And in the present embodiment, the thickness of polyfluortetraethylene plate is 1.5mm, the thickness of upper expansion tetrafluoro plate and lower expansion tetrafluoro plate is 0.8mm.
Embodiment two
And the difference of embodiment one has: be also pasted with stone mill coating 4 between described upper expansion tetrafluoro plate 2 and polyfluortetraethylene plate 1, between described lower expansion tetrafluoro plate 3 and polyfluortetraethylene plate 1, be also pasted with stone mill coating 4.Shown in Figure 2.
Claims (4)
1. a sealing plate, it is characterized in that: comprise the polyfluortetraethylene plate (1) being positioned at mesosphere, be arranged on sealing surface on polyfluortetraethylene plate and the upper expansion tetrafluoro plate (2) be connected with polyfluortetraethylene plate (1), and be arranged on polyfluortetraethylene plate lower sealing surface and the lower expansion tetrafluoro plate (3) be connected with polyfluortetraethylene plate (1); The upper surface of described upper expansion tetrafluoro plate (2) be described sealing plate upper sealing surface, the lower surface of described lower expansion tetrafluoro plate (3) be described sealing plate lower sealing surface.
2. sealing plate according to claim 1, is characterized in that: the thickness of the polyfluortetraethylene plate (1) in described mesosphere is 0.5 ~ 2mm.
3. sealing plate according to claim 1, is characterized in that: the thickness of described upper expansion tetrafluoro plate (2) and lower expansion tetrafluoro plate (3) is 0.5 ~ 1.5mm.
4. sealing plate according to claim 1, it is characterized in that: between described upper expansion tetrafluoro plate (2) and polyfluortetraethylene plate (1), be also pasted with stone mill coating (4), between described lower expansion tetrafluoro plate (3) and polyfluortetraethylene plate (1), be also pasted with stone mill coating (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521126401.8U CN205207654U (en) | 2015-12-29 | 2015-12-29 | Closing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521126401.8U CN205207654U (en) | 2015-12-29 | 2015-12-29 | Closing plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205207654U true CN205207654U (en) | 2016-05-04 |
Family
ID=55845372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521126401.8U Expired - Fee Related CN205207654U (en) | 2015-12-29 | 2015-12-29 | Closing plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205207654U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501424A (en) * | 2018-12-26 | 2019-03-22 | 江苏金由新材料有限公司 | A kind of PTFE composite sealing pad and its preparation process |
| CN109664585A (en) * | 2018-12-26 | 2019-04-23 | 江苏金由新材料有限公司 | A kind of PTFE compound seal backing plate and its preparation process |
-
2015
- 2015-12-29 CN CN201521126401.8U patent/CN205207654U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501424A (en) * | 2018-12-26 | 2019-03-22 | 江苏金由新材料有限公司 | A kind of PTFE composite sealing pad and its preparation process |
| CN109664585A (en) * | 2018-12-26 | 2019-04-23 | 江苏金由新材料有限公司 | A kind of PTFE compound seal backing plate and its preparation process |
| CN109501424B (en) * | 2018-12-26 | 2023-09-12 | 江苏金由新材料有限公司 | PTFE composite sealing gasket and preparation process thereof |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20191229 |