CN2359107Y - Self-stick protecive membrane for instrument - Google Patents
Self-stick protecive membrane for instrument Download PDFInfo
- Publication number
- CN2359107Y CN2359107Y CN 98220044 CN98220044U CN2359107Y CN 2359107 Y CN2359107 Y CN 2359107Y CN 98220044 CN98220044 CN 98220044 CN 98220044 U CN98220044 U CN 98220044U CN 2359107 Y CN2359107 Y CN 2359107Y
- Authority
- CN
- China
- Prior art keywords
- instrument
- protective membrane
- self
- protecting film
- membrane
- 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
Abstract
The utility model belongs to the chemical corrosion field, particularly an anti-corrosive anti-sticking protecting film used for directly contacting metal elastic membranes or diaphragm chambers of various instruments in environments of various chemical corrosion media or viscous media. The thickness of the protecting film is within range of 0.07 mm to 0.15 mm. Pressure-sensitive adhesives are coated by facing the surface side of the instrument. The protecting film has the advantages of good corrosion resistance, heat resistance, stickiness prevention, reliable use, long service life and low cost. The influence on the protected instrument accuracy is slight, and the assembly and disassembly is convenient.
Description
The utility model belongs to the Chemical Preservation field, relates to a kind of be used for directly the contacting various instrument metallic elastic diaphragms of work under all kinds of chemical corrosions or the viscous medium environment or the anticorrosion and antiadhesion protective membrane of bellows.
Be used to measure metallic elastic diaphragm or bellows on used all kinds of transmitters such as liquid or gaseous tension, liquid level, proportion, remote transmission device, barrier film class instrument etc. in the industrial production, very easily be subjected to the corrosion of measured medium and damage, or the adhesion of the big medium of viscosity and causing between turn(a)round its physical abuse, cause the precise decreasing of instrument or scrap.For improving metallic elastic diaphragm or bellows solidity to corrosion, generally adopt precious metals such as stainless steel or tantalum, it involves great expense.And metallic membrane causes great waste and loss in case damage causes whole instrument to be scrapped.The patent No. is to have proposed the anticorrosion diaphragm of a kind of instrument in the Chinese patent of ZL 96 2 27159.4, and the compound use of metallic membrane of it and instrument improving the work-ing life of instrument, and does not influence the measuring accuracy of instrument.According to the practice explanation of making and using, former patent diaphragm-operated variation in thickness scope is excessive.The impurity particle that the blocked up accuracy of instrument that influences of diaphragm, diaphragm are crossed in the thin then medium very easily produces destruction to it, and is not easy to install, so should provide moderate thickness.With the exception of this, the timing on chip of corrosion prevention film is originally adopted gluing or is coated with method such as Vaseline ointment and makes itself and the applying of instrument metallic membrane.Be difficult to so accomplish that tackiness agent smears evenly, or anticorrosion diaphragm when using Vaseline ointment etc. between anticorrosion diaphragm and instrument metallic membrane, deposit downwards, and form the space up, thereby influence the precision and the diaphragm-operated life-span of instrument, adopt simultaneously on-the-spot gummed method also the utmost point be not easy to install.
It is moderate that the purpose of this utility model provides a kind of thickness, with protected instrument surface recombination evenly, be convenient to install, the instrument long service life does not influence the instrument protective membrane of instrument measurement precision.
The utility model is realized in the following manner:
Adopt polyethylene, polypropylene; particularly the perfluoroethylene-propylene of excellent property film impregnating material such as (FEP) is manufactured the film that fits like a glove with protected instrument surface (as metal elastoplasticity diaphragm or bellows surface) shape, size that forms; for the measuring accuracy that do not influence instrument, instrument and the work-ing life of protective membrane; guarantee the quality of manufacturing of protective membrane, the gauge control of protective membrane is between 0.07-0.15mm.
In order to guarantee that the protected film of protective membrane and instrument uses the surface evenly compound securely, and be convenient to install and remove, at protective membrane towards instrument
Show protected face side and scribble under the protective membrane use temperature not solidified pressure-sensitive adhesive.
The self-adhering type instrument has good anti-corrosion, heat-resisting and release property with protective membrane, and use is reliable, the life-span is long, cost is low, and is atomic to protected accuracy of instrument influence, installs and removes easy.
Description of drawings:
Fig. 1 is the horizontal section synoptic diagram of self-adhering type instrument with protective membrane;
Fig. 2 is the front schematic view of self-adhering type instrument with protective membrane;
1 is the protective membrane body among the figure, and 2 is pressure-sensitive adhesive, and 3 is the paper holder.
Below in conjunction with accompanying drawing, provide a most preferred embodiment of the present utility model:
Protective membrane body 1 surface shape after the moulding has ripple, and its size and protected instrument surface match.Side to protective membrane body 1 after the moulding is carried out activation treatment, smears under the protective membrane top temperature not solidified pressure-sensitive adhesive 2 in the activation treatment side then.In view of this protective membrane maximum operation (service) temperature should not surpass 200 ℃, generally can adopt temperature classification is 180 ℃ of organic pressure-sensitive gel sticks that mixed by rubber-like polysiloxane and arborescens polysiloxane.Pressure sensitive sticking agent can adopt compression molding to be applied to the protective membrane fitting surface.Paper holder 3 with compression moulding at last is pasted on the protective membrane that scribbles pressure-sensitive adhesive, for protective membrane provides protection and increases the rigidity of protecting in transportation and the installation.
Claims (2)
1. a self-adhering type instrument adopts the impregnating material film to manufacture with the protection mould, and surface shape has ripple, and its size and protected instrument surface match, and of the present utility modelly is characterised in that the thickness of protective membrane [1] is 0.07～0.15mm.
2. self-adhering type instrument protective membrane according to claim 1 is characterized in that scribbling pressure-sensitive adhesive [2] towards the instrument face side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220044 CN2359107Y (en) | 1998-01-12 | 1998-01-12 | Self-stick protecive membrane for instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98220044 CN2359107Y (en) | 1998-01-12 | 1998-01-12 | Self-stick protecive membrane for instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2359107Y true CN2359107Y (en) | 2000-01-19 |
Family
ID=33971919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98220044 Expired - Fee Related CN2359107Y (en) | 1998-01-12 | 1998-01-12 | Self-stick protecive membrane for instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2359107Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755023B (en) * | 2007-07-17 | 2013-03-20 | 琳得科株式会社 | Adhesive sheet |
-
1998
- 1998-01-12 CN CN 98220044 patent/CN2359107Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101755023B (en) * | 2007-07-17 | 2013-03-20 | 琳得科株式会社 | Adhesive sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |