CN2584994Y - Teflon hose assembly - Google Patents
Teflon hose assembly Download PDFInfo
- Publication number
- CN2584994Y CN2584994Y CN 02260152 CN02260152U CN2584994Y CN 2584994 Y CN2584994 Y CN 2584994Y CN 02260152 CN02260152 CN 02260152 CN 02260152 U CN02260152 U CN 02260152U CN 2584994 Y CN2584994 Y CN 2584994Y
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- layer
- hose assembly
- utility
- teflon hose
- model
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- Expired - Lifetime
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model belongs to the technical field of aerospace, specifically a teflon hose assembly which is composed of a teflon hose layer and metal connectors at both ends. The teflon hose lay is divided into an outer layer, a middle layer and an inner layer, wherein, the outer layer is a reinforced layer, the middle layer is an insulating layer, and the inner layer is a conductive layer. The utility model has the advantages of light weight, high-voltage resistance, aging resistance, corrosion resistance, wide ranges of service temperature, long service life, etc. The utility model can be used in a hydraulic system, a fuel system, a lubricating oil system, a service system, etc. of aircrafts of various domestic military airplanes, missiles, carrier rockets (Long March series, Shenzhou numbers), etc.
Description
Technical field
The utility model belongs to field of aerospace technology, is specifically related to a kind of polytetrafluoroethylhose hose assembly.
Background technique
Polytetrafluoroethylhose hose assembly is as a kind of assembly parts of new material, promotes gradually since 1970 in the world to grow up, at first as the connecting pipeline of conveying gas, liquid medium.This polytetrafluoroethylhose hose assembly is compared with traditional rubber hose assembly, has advantages such as in light weight, withstand voltage height, ageing-resistant, corrosion-resistant, serviceability temperature scope wide (55 ℃～+ 180 ℃), long service life.Along with the fast development of aerospace flight technology, particularly to nineteen nineties, developed country is in order to reach the purpose of control of the air, and exploitation improves the performance of each parts of aerospace flight vehicle energetically.Advanced country such as the U.S., Russia is widely used in polytetrafluoroethylhose hose assembly in hydraulic pressure, fuel oil, lubricating oil and some pressure system of aerospace flight vehicle.People liken it the blood vessel of human body in the world, and the height of its performance will directly influence the performance of aerospace flight vehicle.The polytetrafluoroethylhose hose assembly of Sheng Chan,Xiao Shouing in the market, under the certain working pressure effect, when the hose layer of liquid by polytetrafluoroethylhose hose assembly, will produce static to its inwall, increase along with accumulation of static electricity, polytetrafluoroethylhose hose assembly will be by electrostatic breakdown, produce seepage, the working life of reducing assembly greatly.
Summary of the invention
The purpose of this utility model provides the polytetrafluoroethylhose hose assembly of a kind of novel withstand voltage height, ageing-resistant, long service life.
The polytetrafluoroethylhose hose assembly of the utility model design is made up of the metal connecting piece at teflon hose layer and two ends.Wherein, that the teflon hose layer is divided into is outer, in, interior three layers, skin is an enhancement layer, the centre is an isolation layer, internal layer is a conductive layer.Enhancement layer can adopt the high-strength stainless steel wire, and isolation layer can adopt the polytetrafluoroethyldispersion dispersion resin material, and conductive layer can adopt the polytetrafluoroethyldispersion dispersion resin material.
The utility model enhancement layer THICKNESS CONTROL is at 0.7-8.0mm, and isolation layer and conductive layer combination THICKNESS CONTROL are at 0.8-3.0mm.
The evenness of wall thickness of pipe is very important in the control teflon pushing, even and polyflon also can not flow in molten state, help guaranteeing the uniformity of wall thickness.When the thickness of conductive layer was bigger than normal, the adhesion of isolation layer and conductive layer reduced, and interior pipe is easy to crack; When the thickness of conductive layer was less than normal, then Dao Dian uniformity was very poor.Requirement is guaranteeing that under the satisfactory situation of conduction, conductive layer is got over Bao Yuehao as far as possible.Therefore, the optimum thickness of the utility model conductive layer is 0.01-0.5mm.
The polytetrafluoroethyldispersion dispersion resin that the utility model uses is made by paste extruding and moulding process such as sintering, quenching.With polytetrafluoroethyldispersion dispersion resin, conductive carbon black and after extrusion aid mixed according to a certain percentage, it was fibrous to make resin be drawn into by shear action by shaping die, the through port mould is shaped into the raw material body again.Through oven drying volatilization help squeeze after, in sintering furnace, be warmed up to more than 327 ℃, make big molecule be diffused as amorphous phase mutually, be cooled to existing certain intensity and soft again conduction body then at low temperatures fast.
The polytetrafluoroethylhose hose assembly that the utility model provides is a kind of supplementary material for the aerospace flight vehicle use.Its performance index are: internal diameter Φ 4-Φ 25mm, wall thickness 1.0-1.6mm, serviceability temperature-55 ℃～+ 180 ℃, tensile strength 〉=16MPa, relative density 2.125-2.155, working pressure 0-21MPa.
The utility model polytetrafluoroethylhose hose assembly detects through relative section, its performance index satisfy the requirement of GJB2837-97 standard, and all kinds of military hose of being produced can be widely used in hydraulic pressure, fuel oil, lubricating oil and the system such as servo of domestic various types of military aircraft, guided missile and carrier rocket aircraft such as (Long March series, Divine Lands).
Description of drawings
Fig. 1 is the polytetrafluoroethylhose hose assembly view.
Number in the figure: 1 is metal connecting piece, and 2 is enhancement layer, and 3 is isolation layer, and 4 is conductive layer.
Embodiment
Embodiment 1: enhancement layer adopts the high-strength stainless steel wire, and thickness is 3.0mm, and isolation layer adopts polytetrafluoroethylmaterial material, conductive layer adopts the polytetrafluoroethyldispersion dispersion resin material, isolation layer and conductive layer thickness combination internal diameter are 6.8mm, and wall thickness is 1.25mm, and length is 2.6mm.
Claims (3)
1, a kind of polytetrafluoroethylhose hose assembly is made up of the metal connecting piece at teflon hose layer and two ends, it is characterized in that the teflon hose layer be divided into outer, in, interior three layers, skin is an enhancement layer, the centre is an isolation layer, internal layer is a conductive layer.
2, polytetrafluoroethylhose hose assembly according to claim 1 is characterized in that enhancement layer adopts the high-strength stainless steel wire, and isolation layer adopts the polytetrafluoroethyldispersion dispersion resin material, and conductive layer adopts the polytetrafluoroethyldispersion dispersion resin material.
2, polytetrafluoroethylhose hose assembly according to claim 1 is characterized in that teflon hose layer enhancement layer thickness is 0.7-8.0mm, and isolation layer and conductive layer combination thickness are 0.8-3.0mm, and conductive layer thickness is 0.01-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260152 CN2584994Y (en) | 2002-09-19 | 2002-09-19 | Teflon hose assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02260152 CN2584994Y (en) | 2002-09-19 | 2002-09-19 | Teflon hose assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584994Y true CN2584994Y (en) | 2003-11-05 |
Family
ID=33727278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02260152 Expired - Lifetime CN2584994Y (en) | 2002-09-19 | 2002-09-19 | Teflon hose assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584994Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328534C (en) * | 2004-03-29 | 2007-07-25 | 上海市塑料研究所 | High temperature and pressure-resistance polytetrafluoroethylene hose assembly and its preparing method |
| US8102094B2 (en) | 2006-07-18 | 2012-01-24 | Continental Automotive Gmbh | Device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle |
| CN102679069A (en) * | 2012-05-18 | 2012-09-19 | 上海市塑料研究所 | Fiber reinforced polytetrafluoroethylene hose component and preparation method thereof |
| CN105090648A (en) * | 2015-09-01 | 2015-11-25 | 杭州万全金属软管有限公司 | Joint connecting device of corrugated stainless steel hose for connection of gas appliance |
-
2002
- 2002-09-19 CN CN 02260152 patent/CN2584994Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328534C (en) * | 2004-03-29 | 2007-07-25 | 上海市塑料研究所 | High temperature and pressure-resistance polytetrafluoroethylene hose assembly and its preparing method |
| US8102094B2 (en) | 2006-07-18 | 2012-01-24 | Continental Automotive Gmbh | Device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle |
| CN101490913B (en) * | 2006-07-18 | 2012-11-14 | 大陆汽车有限责任公司 | Device for connecting an electric motor intended for use in a fuel tank, in particular of a motor vehicle |
| CN102679069A (en) * | 2012-05-18 | 2012-09-19 | 上海市塑料研究所 | Fiber reinforced polytetrafluoroethylene hose component and preparation method thereof |
| CN105090648A (en) * | 2015-09-01 | 2015-11-25 | 杭州万全金属软管有限公司 | Joint connecting device of corrugated stainless steel hose for connection of gas appliance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120919 Granted publication date: 20031105 |