CN201339063Y - Ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering - Google Patents
Ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering Download PDFInfo
- Publication number
- CN201339063Y CN201339063Y CNU2008202203636U CN200820220363U CN201339063Y CN 201339063 Y CN201339063 Y CN 201339063Y CN U2008202203636 U CNU2008202203636 U CN U2008202203636U CN 200820220363 U CN200820220363 U CN 200820220363U CN 201339063 Y CN201339063 Y CN 201339063Y
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- China
- Prior art keywords
- polytetrafluoroethylene film
- rubber gasket
- ion
- crevice corrosion
- pole plate
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- Expired - Fee Related
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Abstract
The utility model related to an ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering, which is a rectangular rubber gasket with a rectangular section. Three sides of the internal opening of the ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering is coated with polytetrafluoroethylene film, and a rubber layer of 0.15 to 0.25 mm thick is compounded outside the polytetrafluoroethylene film of the side in contact with a pole plate. The rubber layer of 0.15 to 0.25 mm thick is compounded outside the polytetrafluoroethylene film of the side of the rubber gasket in contact with a pole plate and the rubber gasket is pressed and molded in a special mould in one time. The cohesiveness of the rubber is good; when the ion film electrolytic tank is assembled, the cementation between the side coated with polytetrafluoroethylene film and the titanium pole plate is reliable, which can prevent the initial corrosion of titanium pole plate caused by crevice corrosion; therefore, most inner end faces of the internal opening in contact with the dielectric are coated with polytetrafluoroethylene film and the corrosion resistance of the inner end faces of the internal opening is not affected, thereby ensuring the protection effect of polytetrafluoroethylene on the rubber gasket.
Description
Technical field
The utility model relates to a kind of chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket, and the poly tetrafluoroethylene that particularly a kind of chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket internal orifice coats contacts a side with compound crack, the gap corrosion technology that prevents of rubber layer with pole plate.
Background technology
Chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket is the supporting rubber sheet gasket of using of ion-exchange membrane electrolyzer that Japanese Chlorine Engineering Co., Ltd produces.Chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket is the rectangular rubber pad of square-section.Ion-exchange membrane electrolyzer is the equipment of sodium hydroxide and chlorine of producing with electrolyzing table salt, chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket in use, internal orifice contacts with the stronger medium of corrosion, in order to prevent to corrode of the corrosion of stronger medium, be coated with poly tetrafluoroethylene at the internal orifice of chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket to chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket.In the prior art, poly tetrafluoroethylene is three full coatings with the internal orifice of chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket, coating back internal orifice tetrafluoroethylene coating face is to expose outside, during the assembling ion-exchange membrane electrolyzer, it is to adhere on the pole plate with tackiness agent that the contacted tetrafluoroethylene of chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket and pole plate coats face, pole plate is the pole plate made from valuable metal titanium, because the bad adhesion of tetrafluoroethylene, so bonding imprecision of tetrafluoroethylene face and titanium pole plate, after the bonding, tetrafluoroethylene coats between face and the titanium pole plate can produce the gap, in use, strong corrosive medium can enter in the gap titanium pole plate is produced crevice corrosion, and tetrafluoroethylene also has chemical corruption to touch to titanium simultaneously, often causes the early stage corruption of pole plate to touch and damage.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency, to propose a kind of polytetrafluoroethylene film of crevice corrosion and tetrafluoroethylene and the isolated anti-crevice corrosion of pole plate that can prevent and coat chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket entirely.
The utility model is realized with the following method.
It is the rectangular rubber pad of square-section that the polytetrafluoroethylene film of anti-crevice corrosion coats chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket entirely, internal orifice three bread that coat chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket at the polytetrafluoroethylene film of preventing crevice corrosion entirely are covered with poly tetrafluoroethylene, are compounded with the rubber layer of 0.15～0.25 mm thick outside the poly tetrafluoroethylene of the side that contacts with pole plate.
Contact with the pole plate poly tetrafluoroethylene of a side of the utility model is compounded with the rubber layer of 0.15～0.25 mm thick outward, and product is one step press moulding in special mould.The cohesiveness of rubber is good; when the assembling ion-exchange membrane electrolyzer; bonding is reliable between tetrafluoroethylene face and the titanium pole plate; can prevent to cause the early stage corrosion that the titanium pole plate is produced because of crevice corrosion; the contact outer compound rubber layer that 0.15～0.25 mm thick is only arranged of tetrafluoroethylene coating film of a side of pole plate; so the contacted face of the overwhelming majority of internal orifice and medium all is coated with poly tetrafluoroethylene, the antiseptic property of internal orifice is unaffected, has guaranteed the provide protection of tetrafluoroethylene to rubber sheet gasket.
Below in conjunction with accompanying drawing, the utility model is further described.
Description of drawings
Fig. 1 is that the master that the polytetrafluoroethylene film of anti-crevice corrosion coats chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket entirely looks synoptic diagram;
Fig. 2 is the A-A section enlarged diagram of Fig. 1.
Embodiment
Among Fig. 1, Fig. 2, it is the rectangular rubber pad of square-section that the polytetrafluoroethylene film of anti-crevice corrosion coats chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket 1 entirely, internal orifice three bread that coat chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket at the polytetrafluoroethylene film of preventing crevice corrosion entirely are covered with poly tetrafluoroethylene 2, be compounded with rubber layer 3 outside the poly tetrafluoroethylene of the side that contacts with pole plate, the thickness D of rubber layer is 0.15～0.25 millimeter.
Claims (1)
1. the polytetrafluoroethylene film of an anti-crevice corrosion coats chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket entirely, it is the rectangular rubber pad of square-section, internal orifice three bread that coat chlorine engineering ion-exchange membrane electrolyzer rubber sheet gasket at the polytetrafluoroethylene film of preventing crevice corrosion entirely are covered with poly tetrafluoroethylene, it is characterized in that: the rubber layer that is compounded with 0.15～0.25 mm thick outside the poly tetrafluoroethylene of the side that contacts with pole plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202203636U CN201339063Y (en) | 2008-12-05 | 2008-12-05 | Ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202203636U CN201339063Y (en) | 2008-12-05 | 2008-12-05 | Ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339063Y true CN201339063Y (en) | 2009-11-04 |
Family
ID=41234608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202203636U Expired - Fee Related CN201339063Y (en) | 2008-12-05 | 2008-12-05 | Ion film electrolytic tank rubber gasket preventing crevice corrosion used in polytetrafluoroethylene film full-coated chlorine engineering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339063Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031537A (en) * | 2010-10-18 | 2011-04-27 | 铁岭市国华橡胶制品有限公司 | Cathode rubber gasket for membrane polar distance ionic membrane electrolytic bath with installation limit structure |
| CN103219068A (en) * | 2013-03-25 | 2013-07-24 | 扬州腾飞电缆电器材料有限公司 | Antiseptic and anti-oxidation aluminum foil and processing technique thereof |
-
2008
- 2008-12-05 CN CNU2008202203636U patent/CN201339063Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031537A (en) * | 2010-10-18 | 2011-04-27 | 铁岭市国华橡胶制品有限公司 | Cathode rubber gasket for membrane polar distance ionic membrane electrolytic bath with installation limit structure |
| CN102031537B (en) * | 2010-10-18 | 2012-05-30 | 铁岭市国华橡胶制品有限公司 | Cathode rubber gasket for membrane polar distance ionic membrane electrolytic bath with installation limit structure |
| CN103219068A (en) * | 2013-03-25 | 2013-07-24 | 扬州腾飞电缆电器材料有限公司 | Antiseptic and anti-oxidation aluminum foil and processing technique thereof |
| CN103219068B (en) * | 2013-03-25 | 2017-11-14 | 扬州腾飞电缆电器材料有限公司 | The anti-oxidation aluminium foil of anti-corrosion and its processing technology |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20100105 |