CN105440519A - Polytetrafluoroethylene composite for mechanical sealing - Google Patents
Polytetrafluoroethylene composite for mechanical sealing Download PDFInfo
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- CN105440519A CN105440519A CN201510900861.XA CN201510900861A CN105440519A CN 105440519 A CN105440519 A CN 105440519A CN 201510900861 A CN201510900861 A CN 201510900861A CN 105440519 A CN105440519 A CN 105440519A
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- mechanical seal
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- ptfe composite
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Abstract
The invention discloses a polytetrafluoroethylene composite for mechanical sealing. The composite is prepared from, by weight, 5-15 parts of foamed nickel, 30-50 parts of polytetrafluoroethylene, 10-20 parts of nano SiC particles, 5-20 parts of Co, 6-16 parts of Ti, 7-17 parts of Dy, 8-18 parts of Tb, 3-13 parts of Nd, Fe and 4-14 parts of B. In this way, the polytetrafluoroethylene composite is large in intensity and high in rigidity, and has good designability and corrosion resistance.
Description
Technical field
The present invention relates to sealing material field, particularly relate to a kind of ptfe composite for mechanical seal.
Background technology
It is a challenge that machinery sealing material is selected.In production reality, after sealed structure pattern is determined, Material selec-tion just becomes vital problem, often because material selection is improper, both just devises advanced configuration, but can not receive desirable effect.
For contacting mechanical seal, selection and the assembly of friction pair material are most important.First should consider whether material is suitable for according to process applications, sealed medium chemical, operating pressure, peripheral speed and temperature, also should consider corrosion-resistant and wear-resistant problem simultaneously.Because friction pair is relatively sliding in couples, not only to considers the wear resistance of single ring, the more important thing is the wear resistance of two ring phases mutual friction, also i.e. friction pair material group pair, the self lubricity of guarantee friction pair itself.Whether material group, usually can be suitable from the viewpoint of two assembly: do not produce galling during combination, and do not produce galvanic corrosion during combination to matching.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of ptfe composite for mechanical seal, the designability that intensity is comparatively large, rigidity is higher, good and preferably erosion resistance.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of ptfe composite for mechanical seal, this matrix material comprises: nickel foam, tetrafluoroethylene, nano SiC granule, Co element, Ti element, Dy element, Tb element, Nd element, Fe element, B element, the weight content of its each component is: nickel foam 5 ~ 15 parts, tetrafluoroethylene 30 ~ 50 parts, nano SiC granule 10 ~ 20 parts, Co element 5 ~ 20 parts, Ti element 6 ~ 16 parts, Dy element 7 ~ 17 parts, Tb element 8 ~ 18 parts, Nd element 3 ~ 13 parts, B element 4 ~ 14 parts.
In a preferred embodiment of the present invention, the particle diameter of described nano SiC granule is 50 ~ 200nm.
In a preferred embodiment of the present invention, the particle diameter of described nano SiC granule is 60 ~ 150nm.
In a preferred embodiment of the present invention, the weight content of described Co element is: 5 ~ 15 parts.
The invention has the beneficial effects as follows: intensity of the present invention is comparatively large, rigidity is higher, have good designability and good erosion resistance.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
A kind of ptfe composite for mechanical seal, this matrix material comprises: nickel foam, tetrafluoroethylene, particle diameter are 60 nano SiC granules, Co element, Ti element, Dy element, Tb element, Nd element, Fe element, B element, and the weight content of its each component is: nickel foam 15 parts, tetrafluoroethylene 50 parts, particle diameter are 60 nano SiC granule 20 parts, Co element 15 parts, Ti element 16 parts, Dy element 17 parts, Tb element 18 parts, Nd element 13 parts, B element 14 parts.
Embodiment 2
A kind of ptfe composite for mechanical seal, this matrix material comprises: nickel foam, tetrafluoroethylene, particle diameter are 150nm nano SiC granule, Co element, Ti element, Dy element, Tb element, Nd element, Fe element, B element, and the weight content of its each component is: nickel foam 5 parts, tetrafluoroethylene 30 parts, particle diameter are 150nm nano SiC granule 10 parts, Co element 5 parts, Ti element 6 parts, Dy element 7 parts, Tb element 8 parts, Nd element 3 parts, B element 4 parts.
Embodiment 3
A kind of ptfe composite for mechanical seal, this matrix material comprises: nickel foam, tetrafluoroethylene, particle diameter are 110nm nano SiC granule, Co element, Ti element, Dy element, Tb element, Nd element, Fe element, B element, and the weight content of its each component is: nickel foam 5 ~ 15 parts, tetrafluoroethylene 30 ~ 50 parts, particle diameter are 110nm nano SiC granule 15 parts, Co element 10 parts, Ti element 11 parts, Dy element 12 parts, Tb element 13 parts, Nd element 8 parts, B element 9 parts.
The beneficial effect that the present invention is used for the ptfe composite of mechanical seal is: intensity of the present invention is comparatively large, rigidity is higher, have good designability and good erosion resistance.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. the ptfe composite for mechanical seal, it is characterized in that, this matrix material comprises: nickel foam, tetrafluoroethylene, nano SiC granule, Co element, Ti element, Dy element, Tb element, Nd element, Fe element, B element, and the weight content of its each component is: nickel foam 5 ~ 15 parts, tetrafluoroethylene 30 ~ 50 parts, nano SiC granule 10 ~ 20 parts, Co element 5 ~ 20 parts, Ti element 6 ~ 16 parts, Dy element 7 ~ 17 parts, Tb element 8 ~ 18 parts, Nd element 3 ~ 13 parts, B element 4 ~ 14 parts.
2. the ptfe composite for mechanical seal according to claim 1, is characterized in that, the particle diameter of described nano SiC granule is 50 ~ 200nm.
3. the ptfe composite for mechanical seal according to claim 2, is characterized in that, the particle diameter of described nano SiC granule is 60 ~ 150nm.
4. the ptfe composite for mechanical seal according to claim 1, is characterized in that, the weight content of described Co element is: 5 ~ 15 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900861.XA CN105440519A (en) | 2015-12-09 | 2015-12-09 | Polytetrafluoroethylene composite for mechanical sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510900861.XA CN105440519A (en) | 2015-12-09 | 2015-12-09 | Polytetrafluoroethylene composite for mechanical sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105440519A true CN105440519A (en) | 2016-03-30 |
Family
ID=55551188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510900861.XA Pending CN105440519A (en) | 2015-12-09 | 2015-12-09 | Polytetrafluoroethylene composite for mechanical sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105440519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751258A (en) * | 2016-12-30 | 2017-05-31 | 安徽荣达阀门有限公司 | A kind of valve seal nickel foam reinforced TFE composite and preparation method thereof |
| CN107057243A (en) * | 2016-12-30 | 2017-08-18 | 安徽荣达阀门有限公司 | A kind of self-cleaning, valve seal ptfe composite and preparation method thereof |
-
2015
- 2015-12-09 CN CN201510900861.XA patent/CN105440519A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 路琴等: "PTFE/纳米SiC复合材料的摩擦磨损性能研究", 《工程塑料应用》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106751258A (en) * | 2016-12-30 | 2017-05-31 | 安徽荣达阀门有限公司 | A kind of valve seal nickel foam reinforced TFE composite and preparation method thereof |
| CN107057243A (en) * | 2016-12-30 | 2017-08-18 | 安徽荣达阀门有限公司 | A kind of self-cleaning, valve seal ptfe composite and preparation method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160330 |