CN1083845A - Reinforced sealing packing for pipe memory joining - Google Patents
Reinforced sealing packing for pipe memory joining Download PDFInfo
- Publication number
- CN1083845A CN1083845A CN 93117916 CN93117916A CN1083845A CN 1083845 A CN1083845 A CN 1083845A CN 93117916 CN93117916 CN 93117916 CN 93117916 A CN93117916 A CN 93117916A CN 1083845 A CN1083845 A CN 1083845A
- Authority
- CN
- China
- Prior art keywords
- packing
- lock packing
- enhancing
- enhancing lock
- pipe
- 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
Landscapes
- Sealing Material Composition (AREA)
Abstract
The present invention relates to a kind of reinforced sealing packing for pipe memory joining.It is by 100 parts of (weight) bisphenol A epoxide resins, add 10-40 parts of heat resistant epoxide resins, obtain mixture after 5-15 parts of pre-thermal responses of hydroxy'terminated butadiene nitrile rubber, and then to an amount of solidifying agent of mixture adding, curing catalyst, defoamer, coupling agent, thinner, thixotropic agent and mineral filler are formed, this enhancing lock packing has 5-6 minutes short period curing characteristicss and good flowability, wettability under 160-200 ℃ of conditions.Be used for the effect that pipe memory connects obvious enhancing sealing.
Description
The invention belongs to a kind of enhancing lock packing used when adopting marmem pipe joint to connect metallic conduit.
Adopting marmem pipe joint to connect metallic conduit is a kind of low temperature interconnection technique that latest developments are got up.Be lined with the connection of the metal pipe of preservative coat in it is specially adapted to manage, can prevent high-temperature electric arc to the destruction of pipe internal surface preservative coat with stop the welding stress corrosion, prolong pipeline work-ing life, have important economic worth.
Adopting the memorial alloy tube stub to connect metallic conduit, is that connected tube is inserted in the joint, tube stub is heated to 160-200 ℃ again, and be incubated 5-6 minute, because the shape memory effect of memorial alloy, tube stub is contracted to original size, holds pipe tightly the effect that connects pipe that reaches.In this connection procedure, generally in order to guarantee the power of holding tightly, requiring the memorial alloy tube stub and being connected between the metallic conduit to have less fit-up gap, could guarantee that like this tube stub recovers to hold the purpose that pipe reaches sealing tightly after original size, and have good intensity.But in practical engineering application, every metal pipe two ends all exist certain size tolerance and ellipse garden degree in various degree, and require again under big fit-up gap condition, to be inserted in the memorial alloy tube stub, can reduce the voltage endurance capability of connecting tube so significantly, in order to solve above-mentioned contradiction, when connecting metallic conduit, smear certain thickness enhancing lock packing at the inwall of periphery that is connected metal pipe and memorial alloy tube stub with the memorial alloy tube stub.This enhancing lock packing not only will have good wettability and flowability, and will have good thermotolerance under 160-200 ℃ of insulation situation, and has specific curing cycle, and the time was controlled in 5-6 minute.
At present technology related to the present invention has two pieces of patents: the one, " CN86108464A ", proposition with the toughness reinforcing Resins, epoxy of hydroxy'terminated butadiene nitrile rubber, reach 10-100 hour its set time, and mobile, wettability is not good enough.The 2nd, " CN85100135A ", proposition with the toughness reinforcing epoxy adhesive of nbr carboxyl terminal, its price comparison is expensive, is that set time is long equally, and is mobile and wettability is poor.More than the two all is not suitable for being used in above-mentioned memory connecting tube.
Purpose of the present invention is to provide a kind of metallic conduit that is used in to remember when connecting, and has the filler that strengthens sealing property, and this filler has good flowability, and wettability and thermotolerance reach has the short period curing characteristics under 160-200 ℃ of temperature.
Technical essential of the present invention is the prescription of this enhancing lock packing.Its composition composition characteristic is, in 100 parts of (weight, below all with) after the heat-resisting novolac epoxy of bisphenol A epoxide resin and 10-40 part and the hydroxy'terminated butadiene nitrile rubber of 5-15 part give reaction, add Dicyanodiamide solidifying agent 8-12 part again, curing catalyst 1-4 part, reactive thinner 5-20 part, coupling agent 1-5 part, aerosil thixotropic agent 1-10 part, tributyl phosphate defoamer 1-10 part, mineral filler 10-100 part.
Concrete compound method of the present invention is, get bisphenol A epoxide resin E55, or E-51, or 100 parts of E-44, add heat-resisting novolac epoxy F-44, or F-45, or F-51 10-40 part, hydroxy'terminated butadiene nitrile rubber 5-15 part stirs and gives reaction two hours at 170-180 ℃, treats that this mixture is cooled to room temperature and adds solidifying agent Dicyanodiamide 8-12 part again, curing catalyst glyoxal ethyline or 2-ethyl-4-methylimidazole 1-4 part, reactive thinner butylglycidyl ether, or octyl glycidyl ether, or butyleneglycol bisglycidyl ether, or ethylene glycol bis glycidyl ether 5-20 part, coupling agent can be KH550 or KH560 1-5 part, defoamer tributyl phosphate 1-10 part, thixotropic agent aerosil 1-10 part, add mineral filler at last again: be talcum powder, or silicon dioxide powder, or kaolin 10-100 part, stirring at normal temperatures is reinforced sealing packing for pipe memory joining of the present invention.
The present invention uses, and does not need to do any processing again or add to adjust, and during use it is spread upon pipe end periphery and tube stub inwall, then pipe is inserted in the memorial alloy tube stub in the lump, realizes short-term curing under 160-200 ℃ of condition.And can make connected pipeline reach high intensity and excellent sealing, this positively effect is strengthened by the present invention just that short-term solidified nature that lock packing itself had and good flowability and wettability bring.One, because enhancing lock packing of the present invention, under 160-200 ℃ of condition, reaching the completely solidified cycle only needs 5-6 minute, and this curing cycle can guarantee the voltage endurance capability of connecting tube the best; Two, because enhancing lock packing of the present invention, have suitable good flowability, the gap that causes to its fit-up gap with because of the ellipse garden of pipeline degree promptly has good filling property not cross flow again, and this both can improve stopping property, guaranteed the construction external mass simultaneously again; Three, because the present invention strengthens lock packing, have good wettability, can wetting well memorial alloy tube stub be connected metallic conduit, increased the avidity of filler and metal interface, reach and strengthen the purpose that seals.
Below by embodiment, Comparative Examples, the invention will be further described:
Embodiment one:
Take by weighing following material:
E-44 Resins, epoxy 100g,
F-44 Resins, epoxy 20g,
Liquid hydroxy'terminated butadiene nitrile rubber 5g,
Dicyanodiamide 8g,
2-ethyl-4-methylimidazole 2g,
Butylglycidyl ether 15g,
KH560 1g，
Aerosil 3g,
Tributyl phosphate 2g,
Talcum powder 30g.
Produce reinforced sealing packing for pipe memory joining 186g by above-mentioned compound method then.
Get the above-mentioned enhancing lock packing 40g for preparing, spread upon the pipe periphery of external diameter φ 75.85-76.10mm, and internal diameter φ 76.6mm, length is the tube stub inwall of 120mm, then with in the pipe tubular stinger joint, is heated to 200 ℃ with heater dedicated, kept 5-6 minute, carry out the water test after the cooling, hydraulic pressure reaches 50MPa, does not have to leak.
Comparative Examples:
Be the pipe that adopts external diameter φ 75.85-76.10mm equally, do not smearing under any tackiness agent situation that be inserted into internal diameter φ 76.60mm, length is in the memorial alloy tube stub of 120mm, carries out the water test after the connection, occur when pressure rises to 10MPa leaking.
Embodiment two:
Take by weighing following material:
E-51 Resins, epoxy 100g,
F-44 Resins, epoxy 30g,
Liquid hydroxy'terminated butadiene nitrile rubber 7.5g,
Dicyanodiamide 10g,
2-ethyl-4-methylimidazole 2g,
Butylglycidyl ether 15g,
KH560 1g，
Aerosil 3g,
Tributyl phosphate 2g,
Talcum powder 10g,
Produce reinforced sealing packing for pipe memory joining 180.5g by above-mentioned compound method then.
Get the above-mentioned enhancing lock packing 40g for preparing, spread upon external diameter φ 76.0-76.20mm pipe periphery and internal diameter φ 76.7mm, long on the electrostatic storage tube inner nosepiece wall of 120mm, then with in the pipe tubular stinger joint, adopt and heater dedicatedly be heated to 200 ℃, carry out the water test after the cooling, do not have leakage when hydraulic pressure reaches 48MPa.
Comparative Examples:
Adopt the SG-200 tackiness agent as the memory bonding pad, it is spread upon external diameter φ 76.0-76.10mm pipe periphery and internal diameter φ 76.6mm, long on the tube stub inwall of 120mm, same above-mentioned mode of connection and the type of heating of adopting, carry out the water test after the connection, when pressure rises to 15MPa, just find to have leakage, its reason is that this filler set time is about 2 hours, does not reach the purpose that strengthens sealing after the curing.
Claims (7)
1, a kind of reinforced sealing packing for pipe memory joining is characterized in that its composition is made up of following material; Bisphenol A epoxide resin is 100 parts of (weight meters, below all with), heat-resisting novolac epoxy is 10-40 part, and hydroxy'terminated butadiene nitrile rubber is 5-15 part, Dicyanodiamide 8-12 part, curing catalyst 1-4 part, reactive thinner 5-20 part, coupling agent 1-5 part, aerosil 1-10 part, tributyl phosphate 1-10 part, mineral filler 10-100 part.
2, by the said enhancing lock packing of claim 1, it is characterized in that used bisphenol A epoxide resin can be E-55, or be E-51, or be E-44.
3, by the said enhancing lock packing of claim 1, it is characterized in that used heat-resisting novolac epoxy can be F-44, or be F-45, or be F-51.
4, by the said enhancing lock packing of claim 1, it is characterized in that used curing catalyst can be glyoxal ethyline, or be 2-ethyl-4-methylimidazole.
5, by the said enhancing lock packing of claim 1, it is characterized in that used reactive thinner can be butylglycidyl ether, or be octyl glycidyl ether, or be the butyleneglycol bisglycidyl ether, or be the ethylene glycol bis glycidyl ether.
6, by the said enhancing lock packing of claim 1, it is characterized in that used coupling agent can be KH550, or be KH560.
7, by the said enhancing lock packing of claim 1, it is characterized in that used mineral filler can be talcum powder, or be silicon dioxide powder, or be kaolin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117916 CN1083845A (en) | 1993-10-07 | 1993-10-07 | Reinforced sealing packing for pipe memory joining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93117916 CN1083845A (en) | 1993-10-07 | 1993-10-07 | Reinforced sealing packing for pipe memory joining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1083845A true CN1083845A (en) | 1994-03-16 |
Family
ID=4992208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93117916 Pending CN1083845A (en) | 1993-10-07 | 1993-10-07 | Reinforced sealing packing for pipe memory joining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1083845A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102382607A (en) * | 2011-09-22 | 2012-03-21 | 中国人民解放军理工大学工程兵工程学院 | Composite gluing material for quick leaking stoppage of pipelines |
| CN102660875A (en) * | 2012-05-22 | 2012-09-12 | 厦门市豪尔新材料有限公司 | Polymer film for processing carbon fiber |
| CN101602931B (en) * | 2009-07-22 | 2012-10-31 | 中国水电顾问集团华东勘测设计研究院 | Concrete joint plastic sealing material |
| CN102993639A (en) * | 2012-11-21 | 2013-03-27 | 中国石油天然气集团公司 | Prepreg for pipe repair and preparation thereof as well repair material applying prepreg and repair method |
| CN105001596A (en) * | 2015-07-09 | 2015-10-28 | 中国海洋石油总公司 | Synthetic cement and usage thereof |
| CN111500082A (en) * | 2020-04-29 | 2020-08-07 | 大庆油田有限责任公司 | Synthetic sealing filler special for water injection well test blowout prevention pipe and preparation method thereof |
| CN115179205A (en) * | 2022-06-30 | 2022-10-14 | 安徽吉曜玻璃微纤有限公司 | Formaldehyde-free resin binder and preparation method thereof |
-
1993
- 1993-10-07 CN CN 93117916 patent/CN1083845A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101602931B (en) * | 2009-07-22 | 2012-10-31 | 中国水电顾问集团华东勘测设计研究院 | Concrete joint plastic sealing material |
| CN102382607A (en) * | 2011-09-22 | 2012-03-21 | 中国人民解放军理工大学工程兵工程学院 | Composite gluing material for quick leaking stoppage of pipelines |
| CN102660875A (en) * | 2012-05-22 | 2012-09-12 | 厦门市豪尔新材料有限公司 | Polymer film for processing carbon fiber |
| CN102660875B (en) * | 2012-05-22 | 2016-06-15 | 厦门市豪尔新材料股份有限公司 | A kind of carbon fiber processing polymeric membrane |
| CN102993639A (en) * | 2012-11-21 | 2013-03-27 | 中国石油天然气集团公司 | Prepreg for pipe repair and preparation thereof as well repair material applying prepreg and repair method |
| CN102993639B (en) * | 2012-11-21 | 2015-06-03 | 中国石油天然气集团公司 | Prepreg for pipe repair and preparation thereof as well repair material applying prepreg and repair method |
| CN105001596A (en) * | 2015-07-09 | 2015-10-28 | 中国海洋石油总公司 | Synthetic cement and usage thereof |
| CN111500082A (en) * | 2020-04-29 | 2020-08-07 | 大庆油田有限责任公司 | Synthetic sealing filler special for water injection well test blowout prevention pipe and preparation method thereof |
| CN111500082B (en) * | 2020-04-29 | 2022-03-29 | 大庆油田有限责任公司 | Synthetic sealing filler special for water injection well test blowout prevention pipe and preparation method thereof |
| CN115179205A (en) * | 2022-06-30 | 2022-10-14 | 安徽吉曜玻璃微纤有限公司 | Formaldehyde-free resin binder and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU691587B2 (en) | Curable polymeric composition and use in protecting a substrate | |
| CN1083845A (en) | Reinforced sealing packing for pipe memory joining | |
| CN101619779B (en) | Sealing device for buried pipe connected with protective well | |
| CN106090481A (en) | A kind of jointing for steel strip reinforced PE helical bellows and attaching method thereof | |
| CN100564982C (en) | A kind of restorative procedure of excavation-free underground pipe line | |
| CN1247817C (en) | Method of protecting corrosion proof pipeline joint internal wall using sacrificing anode | |
| CN1200065C (en) | Sealing agent used for high temp. pressuriced leakage blocking and its use method | |
| CN204717234U (en) | Directional traversing pipeline sheath tube end annular space waterproof construction | |
| CN104031608A (en) | Sealing agent for high-temperature pressure plugging and preparation method thereof | |
| CN109595410A (en) | A kind of on-site connection joint and method for reinforced thermoplastics pipe | |
| CN107420666A (en) | A kind of connection method between steel pipeline inside lining anti-corrosive construction section | |
| CN106090485B (en) | A kind of insulating joint of the mechanical connecting band flexible glue layer of disassembly | |
| CN106151725A (en) | A kind of band flexible glue layer insulating joint with protective conduit function of surface | |
| KR101868978B1 (en) | The manufacturing method and tool of hollow-shaft-type stabilizer bar including adhesive sealing process and hollow-shaft-type stabilizer bar manufactured by using this method | |
| CN111036521A (en) | Anticorrosion, seepage-proofing and heat-insulation process for reinforced direct-buried heat supply pipeline | |
| CN205938274U (en) | Insulated joint suitable for oil gas long distance pipeline | |
| CN105436041A (en) | Steel-pipe internal-coating glass fiber reinforced plastic mouth-repairing apparatus | |
| CN219512926U (en) | Leak-stopping repairing device for leaking oil | |
| JPH0139511B2 (en) | ||
| CN210716494U (en) | Connection structure of reducing PE pipeline | |
| CN1188622C (en) | Pipeline joining method | |
| CN205173754U (en) | Socket joint pipe fitting is used in welding | |
| CN201731210U (en) | Water pipe connector provided with reinforced sealing structure | |
| CN102953975B (en) | A kind of metering pump external pipeline linkage structure | |
| CN107178666A (en) | High leakproofness pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |