CN1087975A - A kind of fixation liquid sealing gasket - Google Patents
A kind of fixation liquid sealing gasket Download PDFInfo
- Publication number
- CN1087975A CN1087975A CN 92111756 CN92111756A CN1087975A CN 1087975 A CN1087975 A CN 1087975A CN 92111756 CN92111756 CN 92111756 CN 92111756 A CN92111756 A CN 92111756A CN 1087975 A CN1087975 A CN 1087975A
- Authority
- CN
- China
- Prior art keywords
- tackifier
- sealing gasket
- filler
- thickening agent
- agent
- 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.)
- Pending
Links
Abstract
Fixation liquid sealing gasket of the present invention is with inorganic polymer R
2OnSiO
2(alkali metal of R wherein is sodium for example) is main component, mix water-thickening agent, tackifier, hygroscopic agent and filler again and form, and the weight percentage of each component is: inorganic polymer 40～90%, water-thickening agent 0.1～30%, tackifier 0.05～5%, hygroscopic agent 0.05～5%, filler 0.1～20%.Sealing gasket of the present invention has the suitable active phase and the performance of oil resistant and other organic medias, be specially adapted to the sealing of steel flange and casing joint surface and screw thread junction plane, its operating temperature is-100～+ 800 ℃, can be 500～600 ℃ of following long-term works, be equal to or greater than 6.0MPa under 200 ℃ of the voltage endurance capabilities.
Description
The present invention relates to a kind of fixation liquid sealing gasket, it belongs to the sealing that is used for joint or lid or packing, is not included in the wide variety of materials class of other classifications.
Existing fixation liquid sealing gasket contains organic polymer mostly, such as neoprene and nitrile butadiene rubber (Chinese patent application 87102519) or the reaction product of copolymer polyamide resin and phenolic resin (Chinese patent application 89104012.9), but also to use organic solvent such as trichloroethylene, dichloromethane or ethyl acetate and so on.Brings three problems to I haven't seen you for ages like this: the one, the temperature that is suitable for is not high, two be to use in safety inadequately, the 3rd, cost of production is higher.
Advantages such as purpose of the present invention is that will to provide a kind of be main component with the inorganic macromolecule compound, need not the fixation liquid sealing gasket of organic solvent simultaneously again, and it should possess Applicable temperature height and wide ranges, and is safe in utilization, and cost of production is low.
The main points of technical solution of the present invention are: with the inorganic macromolecule compound is main component, adds water-thickening agent, tackifier, hygroscopic agent and filler, and described inorganic macromolecule compound molecular formula is R
2OnSiO
2, the R in the formula is alkali metal (a for example sodium), and n=1.8～2.8, described water-thickening agent molecular formula is Al
2Si
4O
11H
2O(is bentonite clay for example) and Mg
3Si
2O
72H
2O(is French chalk for example), described tackifier are urea, and described hygroscopic agent is the polyatomic alcohol polybasic alcohol (for example ethylene glycol) that contains two hydroxyls in the molecule at least, and described filler molecular formula is Mg
3[Si
4O
10] [OH]
2(for example asbestos powder), and the weight percentage of each component is as follows:
Inorganic polymer 40～90%
Water-thickening agent 0.1～30%
Tackifier 0.05～5%
Hygroscopic agent 0.05～5%
Filler 0.1～20%
The present invention's sealing is lined with the suitable active phase, and it is specially adapted to the sealing of steel flange and casing joint surface and threaded piece junction plane, also is fit to the sealing of other material junction planes; Performance with good oil resistant (comprising mineral oil and artificial oil) and anti-other organic medias; Its operating temperature interval is-100 ℃～+ 800 ℃, can be 500～600 ℃ of following long-term works; Under 23 ℃ of its compression resistances more than or equal to 8.5MPa, under 200 ℃ more than or equal to 6.0MPa.
What composition properties was had the greatest impact is the performance of inorganic macromolecule compound itself, and our experience shows, when with Na
2OnSiO
2During for raw material, should select modulus for use is 1.8～2.8, otherwise the cohesiveencess of gained sealing gasket all is difficult to satisfy usage requirement with the active phase; The hygroscopic agent of polyalcohols then helps to control the surface drying time of liquid gasket, and in the regular hour scope, surface drying time is too short when its consumption is less than certain value, if but consumption surpasses certain limit value, can produce again never to do solid disadvantage; Water-thickening agent shows good thixotropy to inorganic macromolecule compound of the present invention, and urea helps improving the wettability of sealing gasket of the present invention for the parent metal material, the rational allocation of the two can improve the too filling sealability of sealing gasket of liquid of the present invention in the present invention, improves its trickling property index simultaneously.
In sum, fixation liquid sealing gasket of the present invention has the tolerable temperature height, uses easy and safe to operately, and outstanding advantage such as cost of production is low in fields such as machinery, mine, petrochemical industry and Aero-Space, all has broad prospect for its application.
Embodiment
Get the 40Be soap with water glass 70 minutes (weight, down with), and wherein added Powdered urea 3 minutes, get the bentonite clay fine powder again 15 minutes, asbestos powder 7.5 minutes, and the French chalk of surplus become 100 fens altogether.Mentioned component is fully mixed well, promptly got required liquid gasket, its every performance index all meet above-mentioned requirements.
Claims (1)
1, a kind of fixation liquid sealing gasket, it is to be main component with the inorganic macromolecule compound, adds water-thickening agent, and tackifier, hygroscopic agent and filler form, and described inorganic macromolecule compound molecular formula is R
2OnSiO
2, the R in the formula is alkali metal (a for example sodium), described water-thickening agent molecular formula is Al
2Si
4O
11H
2O (for example bentonite clay) and Mg
3Si
2O
72H
2O (for example French chalk), described tackifier are urea, and described hygroscopic agent is the polyatomic alcohol polybasic alcohol (for example ethylene glycol) that contains two hydroxyls in the molecule at least, and described filler molecular formula is Mg
3[Si
4O
10] [OH]
2(for example asbestos powder), and the weight percentage of each component is as follows:
Inorganic polymer 40～90%
Water-thickening agent 0.1～30%
Tackifier 0.05～5%
Hygroscopic agent 0.05～5%
Filler 0.1～20%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111756 CN1087975A (en) | 1992-12-11 | 1992-12-11 | A kind of fixation liquid sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111756 CN1087975A (en) | 1992-12-11 | 1992-12-11 | A kind of fixation liquid sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1087975A true CN1087975A (en) | 1994-06-15 |
Family
ID=4945496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111756 Pending CN1087975A (en) | 1992-12-11 | 1992-12-11 | A kind of fixation liquid sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1087975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465243C (en) * | 2007-09-20 | 2009-03-04 | 北京联合大学 | Centrifugal granulating method for producing sealing material and product and uses thereof |
| CN110924176A (en) * | 2019-11-22 | 2020-03-27 | 涿州长兴新材料科技有限公司 | Novel wire joint sealing material |
-
1992
- 1992-12-11 CN CN 92111756 patent/CN1087975A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100465243C (en) * | 2007-09-20 | 2009-03-04 | 北京联合大学 | Centrifugal granulating method for producing sealing material and product and uses thereof |
| CN110924176A (en) * | 2019-11-22 | 2020-03-27 | 涿州长兴新材料科技有限公司 | Novel wire joint sealing material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |