CN109404537A - A kind of two-way dustband of polytetrafluoroethylene (PTFE) - Google Patents
A kind of two-way dustband of polytetrafluoroethylene (PTFE) Download PDFInfo
- Publication number
- CN109404537A CN109404537A CN201811132199.8A CN201811132199A CN109404537A CN 109404537 A CN109404537 A CN 109404537A CN 201811132199 A CN201811132199 A CN 201811132199A CN 109404537 A CN109404537 A CN 109404537A
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- CN
- China
- Prior art keywords
- polytetrafluoroethylene
- sealing lip
- dustband
- parts
- ptfe
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
- F16J15/3208—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip provided with tension elements, e.g. elastic rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of two-way dustband of polytetrafluoroethylene (PTFE), including sealing lip and O-ring, the inner surface of the sealing lip is equipped with anti-skid chequer, and the outside of the sealing lip is equipped with card slot, and the O-ring is installed in card slot；The sealing lip is prepared by the component of following mass fraction: 100~110 parts of polyflon, 0.2~0.7 part of calcium carbonate, 0.6~1.6 part of calcium oxide, 0.8~3 part of processing aid；The O-ring is prepared by the component of following mass fraction: 80~100 parts of nitrile rubber, 8~15 parts of montmorillonite, 6~10 parts of superfine powder of polytetrafluoroethylene, 3~8 parts of carbon fiber, 0.5~3 part of dispersing agent neopelex, 2~5 parts of aluminium hydroxide, vulcanizing agent DCBP1~2 part, 0.5~1.2 part of altax, 1~1.2 part of antioxidant MB, 5~10 parts of plasticizer DOP.The present invention has dust seal two-way function, suitable for oil cylinder, cylinder, mechanical equipment dust seal, be used cooperatively by the made seal lip of above-mentioned formula and O-ring, being capable of acid-alkali-corrosive-resisting, resistant to high temperatures, ensure dust seal effect, and maximum pressure of bearing reaches 16bar.
Description
Technical field
The present invention relates to dustband technical field, especially a kind of two-way dustband of polytetrafluoroethylene (PTFE).
Background technique
In the executive component of modern automation control system, hydraulic, pneumatic machinery or device are as the important of mechanical movement
There is the overwhelming majority damaged the reason is that there is " dirt " in hydraulic system in dynamical element, these dirts are mainly derived from building
The either oils of road flying dust, slack coal, sand, workshop dust or the material containing friction particles.Wherein in the hydraulic of linear motion
In transmission, the place that live pole extends and retracts is most easily contaminated, and when motion bar is stretched out out of pressurized strut, live pole surface can be adsorbed
There are working oil membrane, moisture film or lubricating oil film, some dirts can be stained in live pole, is to prevent dirt from entering sealing using dustband
The main method of device, dustband can remove these dirts when live pole retracts pressurized strut.All dustbands press function
It can be divided into unidirectional dustband and two-way dustband, be divided into single lip and more two classes of lip type by dustproof element construction；Dustband is by knot
Structure and material be broadly divided into homogenous material manufacture unit piece dustband, the homogenous material be rubber, felt leather, plastics or
Metal；The dustband that rubber armouring dustband, predominantly metal, plastics, fabric or fiber manufacture；Compound dustband, it is main
If the element of two or more manufactured by one or several kinds of materials assembles.What is used in present many devices is anti-
Konisphere is the wiper of rubber enhanced using metal, fabric and plastics, and under some exceedingly odious environmental conditions, such as strong acid
In the environment of highly basic or high temperature severe cold, the requirement to dustband is stringenter, then is not suitable for these rubber system dustbands, and once because
Machine operation failure will occur in the dust-proof failure of bad environments, and need to waste many man power and materials clear up hydraulic systems with
And restorer operation.
Summary of the invention
In order to improve dust seal effect of the dustband under the adverse circumstances such as strong acid and strong base or high temperature severe cold in the prior art
Fruit, eliminates the deficiency of existing wiper of rubber, and the present invention provides a kind of two-way dustband of polytetrafluoroethylene (PTFE).
The technical solution adopted by the present invention to solve the technical problems is: a kind of two-way dustband of polytetrafluoroethylene (PTFE), including
Sealing lip and O-ring, the inner surface of the sealing lip are equipped with anti-skid chequer, and the outside of the sealing lip is equipped with card slot, the O-ring
It is installed in card slot；The sealing lip is prepared by the component of following mass fraction:
The O-ring is prepared by the component of following mass fraction:
A kind of above-mentioned two-way dustband of polytetrafluoroethylene (PTFE), the polyflon are dispersed polytetrafluoroethylresin resin
Powder, the granularity of the dispersed polytetrafluoroethylresin resin powder are 200~500 mesh.
The mass fraction ratio of a kind of above-mentioned two-way dustband of polytetrafluoroethylene (PTFE), the calcium carbonate and calcium oxide be 1:2~
4。
A kind of above-mentioned two-way dustband of polytetrafluoroethylene (PTFE), the processing aid are self-lubricating auxiliary agent, and the self-lubricating helps
Agent is graphite or molybdenum disulfide, and the partial size of the self-lubricating auxiliary agent is 2~8um.
A kind of above-mentioned two-way dustband of polytetrafluoroethylene (PTFE), the partial size of the superfine powder of polytetrafluoroethylene are 4~10um.
Compared with prior art, the beneficial effects of the present invention are:
1. the two-way dustband of polytetrafluoroethylene (PTFE) has the function of dust seal, suitable for oil cylinder, cylinder, mechanical equipment it is anti-
Dirt sealing, the intrusion of dirt and dust can be effectively prevent with an O-ring, and the additional salable part of seal lip will leak
Oil, and product is easy to be easily installed；
2. sealing lip is base-material, not only resistant to high temperatures, acid-alkali-corrosive-resisting, but also resistance to compression by dispersed polytetrafluoroethylresin resin powder
Wear-resistant, maximum bears pressure and reaches 16bar, and O-ring uses polytetrafluoroethylene (PTFE), the nitrile rubber of fibre reinforced, resistance to compression
Intensity increases, and antiacid alkali wear resistance enhancing, stability is strong, applicable in different adverse circumstances.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural diagram of the present invention.
1. sealing lip in figure, 11. card slots, 12. anti-skid chequers, 2.O shape circle.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula elaborates to the present invention.
[embodiment 1]
A kind of two-way dustband of polytetrafluoroethylene (PTFE), including sealing lip 1 and O-ring 2, the inner surface of the sealing lip 1 are equipped with
The outside of anti-skid chequer 12, the sealing lip 1 is equipped with card slot 11, and the O-ring 2 is installed in card slot 11；The sealing lip 1 by with
The component of lower mass fraction is prepared:
The O-ring 2 is prepared by the component of following mass fraction:
Further, the polyflon is dispersed polytetrafluoroethylresin resin powder, the dispersion polytetrafluoroethyl-ne
The granularity of olefine resin powder is 200 mesh；The mass fraction of the calcium carbonate and calcium oxide ratio is 1:2；The processing aid is certainly
Lubricating auxiliary agent, the self-lubricating auxiliary agent are graphite, and the partial size of the graphite is 3um.
Further, the partial size of the superfine powder of polytetrafluoroethylene is 4um.
[embodiment 2]
A kind of two-way dustband of polytetrafluoroethylene (PTFE), including sealing lip 1 and O-ring 2, the inner surface of the sealing lip 1 are equipped with
The outside of anti-skid chequer 12, the sealing lip 1 is equipped with card slot 11, and the O-ring 2 is installed in card slot 11；The sealing lip 1 by with
The component of lower mass fraction is prepared:
The O-ring 2 is prepared by the component of following mass fraction:
Further, the polyflon is dispersed polytetrafluoroethylresin resin powder, the dispersion polytetrafluoroethyl-ne
The granularity of olefine resin powder is 400 mesh；The mass fraction of the calcium carbonate and calcium oxide ratio is 1:3；The processing aid is certainly
Lubricating auxiliary agent, the self-lubricating auxiliary agent are molybdenum disulfide, and the partial size of the molybdenum disulfide is 6um.
Further, the partial size of the superfine powder of polytetrafluoroethylene is 9um.
[embodiment 3]
A kind of two-way dustband of polytetrafluoroethylene (PTFE), including sealing lip 1 and O-ring 2, the inner surface of the sealing lip 1 are equipped with
The outside of anti-skid chequer 12, the sealing lip 1 is equipped with card slot 11, and the O-ring 2 is installed in card slot 11；The sealing lip 1 by with
The component of lower mass fraction is prepared:
The O-ring 2 is prepared by the component of following mass fraction:
Further, the polyflon is dispersed polytetrafluoroethylresin resin powder, the dispersion polytetrafluoroethyl-ne
The granularity of olefine resin powder is 500 mesh；The mass fraction of the calcium carbonate and calcium oxide ratio is 1:4；The processing aid is certainly
Lubricating auxiliary agent, the self-lubricating auxiliary agent are graphite, and the partial size of the graphite is 8um.
Further, the granularity of the superfine powder of polytetrafluoroethylene is 10um.
Above embodiments are only exemplary embodiment of the present invention, are not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (5)
1. a kind of two-way dustband of polytetrafluoroethylene (PTFE), including sealing lip (1) and O-ring (2), it is characterised in that: the sealing lip
(1) inner surface is equipped with anti-skid chequer (12), and the outside of the sealing lip (1) is equipped with card slot (11), and the O-ring (2) is installed on
In card slot (11)；The sealing lip (1) is prepared by the component of following mass fraction:
The O-ring (2) is prepared by the component of following mass fraction:
2. the two-way dustband of a kind of polytetrafluoroethylene (PTFE) according to claim 1, which is characterized in that the polytetrafluoroethylene (PTFE) tree
Rouge is dispersed polytetrafluoroethylresin resin powder, and the granularity of the dispersed polytetrafluoroethylresin resin powder is 200~500 mesh.
3. the two-way dustband of a kind of polytetrafluoroethylene (PTFE) according to claim 1, which is characterized in that the calcium carbonate and oxidation
The mass fraction ratio of calcium is 1:2~4.
4. the two-way dustband of a kind of polytetrafluoroethylene (PTFE) according to claim 1, which is characterized in that the processing aid is certainly
Lubricating auxiliary agent, the self-lubricating auxiliary agent are graphite or molybdenum disulfide, and the partial size of the self-lubricating auxiliary agent is 2~8um.
5. the two-way dustband of a kind of polytetrafluoroethylene (PTFE) according to claim 1, which is characterized in that the polytetrafluoroethylene (PTFE) is super
The granularity of fine powder is 4~10um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132199.8A CN109404537A (en) | 2018-09-27 | 2018-09-27 | A kind of two-way dustband of polytetrafluoroethylene (PTFE) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811132199.8A CN109404537A (en) | 2018-09-27 | 2018-09-27 | A kind of two-way dustband of polytetrafluoroethylene (PTFE) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109404537A true CN109404537A (en) | 2019-03-01 |
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ID=65465327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811132199.8A Pending CN109404537A (en) | 2018-09-27 | 2018-09-27 | A kind of two-way dustband of polytetrafluoroethylene (PTFE) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109404537A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090634A (en) * | 1993-12-16 | 1994-08-10 | 冶金工业部自动化研究院 | Self balance combined high pressure rotary sealing ring |
| CN101717552A (en) * | 2009-12-23 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | PTFE composite material for front and rear oil seals of crankshaft and preparation method thereof |
| CN202851955U (en) * | 2012-09-26 | 2013-04-03 | 太仓市明宇密封件有限公司 | Combination sealing ring |
| CN104676009A (en) * | 2015-02-06 | 2015-06-03 | 洛阳普瑞曼自动控制技术有限公司 | Teflon framework oil seal with automatic compensation function |
-
2018
- 2018-09-27 CN CN201811132199.8A patent/CN109404537A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1090634A (en) * | 1993-12-16 | 1994-08-10 | 冶金工业部自动化研究院 | Self balance combined high pressure rotary sealing ring |
| CN101717552A (en) * | 2009-12-23 | 2010-06-02 | 浙江吉利汽车研究院有限公司 | PTFE composite material for front and rear oil seals of crankshaft and preparation method thereof |
| CN202851955U (en) * | 2012-09-26 | 2013-04-03 | 太仓市明宇密封件有限公司 | Combination sealing ring |
| CN104676009A (en) * | 2015-02-06 | 2015-06-03 | 洛阳普瑞曼自动控制技术有限公司 | Teflon framework oil seal with automatic compensation function |
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| PB01 | Publication | ||
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Application publication date: 20190301 |