CN1048877A - Use modified acrylate adhesive for adhering steel rail at normal temp - Google Patents
Use modified acrylate adhesive for adhering steel rail at normal temp Download PDFInfo
- Publication number
- CN1048877A CN1048877A CN 90104718 CN90104718A CN1048877A CN 1048877 A CN1048877 A CN 1048877A CN 90104718 CN90104718 CN 90104718 CN 90104718 A CN90104718 A CN 90104718A CN 1048877 A CN1048877 A CN 1048877A
- Authority
- CN
- China
- Prior art keywords
- bonding
- rail
- component
- rail joint
- binder
- 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.)
- Withdrawn
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the normal temperature adhesive technology of rail joint and used caking agent thereof.Adopt the acrylic binder adhering rail joint,, in binder ingredients, add relatively large elastomerics, specific reactive monomer and compound also first system, to improve its toughness and shearing resistance in order to reach the requirement that rail " freezes " joint.Compare with the epoxy resin binder adhering rail joint with prior art, saved the operation that is heating and curing, reduced difficulty of construction and construction cost.
Description
The present invention is rail joint normal temperature adhesive technology and used tackiness agent thereof.
Tackiness agent has two aspects in the application aspect the rail connection according to reported in literature, an aspect is the connection that is used for rail insulated joint, be the connection that is used for non-insulated connector on the other hand, it comprises the bonding or long rail of short rail and the seamless long rails joint that welded bonding again.Sixties bonded joint is used in American and Britain, method, day, Soviet Union and West Germany, and China is that the seventies begins to adopt, but uses epoxy resin binder mostly, uses aerodux on a small quantity.The holy non-railway of the U.S. was just used the bonding seamless long rails joint of epoxy resin binder in 1963, in construction, require splice bar and rail contact surface are cleaned up, behind the coating adhesive, be heated to 121-154 ℃ with the propane heating unit and make it to solidify (Railway Track and Structures 1963 Vo159.NO.12.19-22) .US3139364(1964) also be to use the epoxy resin binder spreading rail joint manufacturing patent of long rail continuously.Nineteen eighty-two austrian patent (374.216) report rail is bonding, also is to use epoxy resin binder in the bolt fastening structure, wherein adds fine steel ball, still can conduct electricity after being heating and curing, and has formed non-insulated connector.This shows and adopt the epoxy resin binder adhering rail joint, must have the thermal-curable system that is heated to more than 100 ℃, must increase the complicacy and the construction cost of operation, particularly bonding being difficult to more of long rail joint implemented.
Modified acroleic acid fat tackiness agent is s-generation acrylate adhesive again, is one of alleged six major projects tackiness agent in the world.Compare with epoxy resin binder, bonding strength is suitable, can both reach the requirement of structure glue.But on shock resistance, anti-vibration performance, then be better than epoxy resin binder, and two component do not need strict weighing when mixing, the bonding plane clean level is not had harsh requirement, more outstanding advantage is can the normal temperature fast setting, these advantages bond to rail, and field construction is very favourable.At present the CALCIUM ACRYLATE structure glue is used for weighing apparatus, power tool, automobile part, electric installation, gamma defectoscope, probe bonding in addition more, does not see the report of adhering rail joint as yet.
The objective of the invention is to replace traditional epoxy resin binder adhering rail joint with modified acroleic acid fat tackiness agent, to simplify technique for sticking, reducing cost guarantees that driving steadily, prolongs the life-span of rail and train.
Another object of the present invention provides a good toughness, and the modified acroleic acid fat tackiness agent that bonding strength is high is as bonding rail tackiness agent.
The modified acrylic ester as binder that the present invention uses is made up of first, second two components.The composition and the consumption of first, second two components are as follows:
| The first component comprises | Component B comprises |
| Reactive acrylate monomer 40-50% | Reactive acrylate monomer 60-50% |
| Mixed elastomer 19-40% | Mixed elastomer 10-40% |
| Many palaces can reactive monomer 30-10% | Many palaces reactive monomer 20-10% |
| Initiator (oxygenant) 3-6% | Catalyzer (deoxidizer) 1-5% |
| Stablizer 0.01-0.5% | Promotor 0.1-1% |
The reactive acrylate monomer that the present invention adopts has methyl acrylate, ethyl ester, butyl ester, methyl methacrylate, ethyl ester, butyl ester etc.
Acrylic acid hydroxy ester can be used, the hydroxy ester of methacrylic acid, vinylformic acid diethylene glycol dilaurate, the vinylformic acid polyester of TriMethylolPropane(TMP) and tetramethylolmethane and dihydroxyphenyl propane ester compound etc. by reactive monomer in many palaces.Particularly adopt many palaces of band phenyl ring can reactive monomer as-hydroxyethyl dihydroxyphenyl propane diester acrylate, help improving huge sum velocity and bonding strength.
Elastomerics can be used polyhutadiene, chloroprene rubber, nitrile rubber, chlorosulfonated polyethylene, ABS, SBS etc., also can be their mixture.Particularly nitrile rubber and ABS resin and usefulness when the general tackiness agent of amount ratio is big, can obviously increase the toughness of tackiness agent.
The available benzoyl peroxide of initiator (oxygenant), isopropyl benzene hydroperoxide, t-butyl hydrogen peroxide, organo-peroxides such as methylethyl ketone peroxide.
The available aminated compounds of catalyzer (deoxidizer) as: triethylamine, diethylamine, diethylenetriamine, N, N ,-xylidine (DMA), N, N-Diethyl Aniline, N, the N-dimethyl is to monomethylaniline etc.
In order to accelerate also will to add a kind of also unit's property promoting agent set time as promotor, it and aminated compounds are formed active high catalyst system.This class material has Thiourea, as ethylene thiourea, and tetramethyl thiourea and xitix (vitamins C) etc.
Transition metal salt can be participated in oxidation-go back elementary reaction, and this class material of effect that plays promotor has neutralized verdigris, iron acetate, Cobaltous diacetate, manganese acetate, iron trichloride, single nickel salt etc.
Particularly a kind of compound also first system of being made up of amine compound-thiocarbamide-vitamins C-acetate can efficiently be mated with oxygenant, has guaranteed that bonding strength has reached the requirement of structure glue.
The used stablizer of the present invention has Resorcinol and benzoquinone compound.
During with modified acrylic ester as binder adhering rail joint of the present invention, at first fishtail clamping plate and rail bonding plane are polished to remove iron rust and grease with sand paper or sandblast, then that first, second two components are even by 1: 1 mixed, be applied on the bonding plane, behind the bonding location, add bolted, normal temperature is placed certain hour (24 hours) and is made the tackiness agent completely solidified, just can use.
In order to realize railway joint " freezing ", thermal stress (Pt) balance that rail joint resistance (PH) should be expanded with heat and contract with cold and cause with rail.Pt can be calculated by following rough and ready formula:
Ft＝2.5F（t
o-t
min）
Wherein: Pt thermal stress kg
The F rail profile amasss cm
2
t
nThe temperature of laying a railway track ℃
t
MinRailway location minimum temperature ℃
For the sake of security, make that PH=1.1 * Pt(1.1 is a safety coefficient), in fact the frictional force sum that provides for bonding force and bolt of PH, equal PH as long as guarantee bonding force (carrying pulling force), just can realize the requirement of " freezing " joint fully, because also do not comprise the frictional force that bolt provides here.
Bonding way is seen accompanying drawing
Among the figure 1, rail
2, fishtail clamping plate
3, tackiness agent
4, bolt and nut
Embodiment 1:
With three mouthfuls of 10 liters of electronic stirring and in, add methyl methacrylate successively, nitrile rubber, ABS resin, Propylene glycol monoacrylate in the ratio of table 1 first component.Normal temperature adds vinylformic acid after all dissolving down again, Viscoat 295 and isopropyl benzene hydroperoxide, and dissolving evenly makes the first component.Component B is equally prepared with the first component in table 1 ratio.
After two components prepare, with standard 45
#Steel disc carries out adhesive test, and behind the curing certain hour, surveying its shearing resistance with omnipotent puller system is 248kg/cm
2
Embodiment 2,3,4
In the component ratio of table 1, compound method is with embodiment 1, and measurement result is listed in the table 1.
Symbology MMA-methyl methacrylate in the table 1
β-HPA-Propylene glycol monoacrylate
AA-vinylformic acid
The TMTA-Viscoat 295
The CHP-hyperis
DMA-N, accelerine
The Vc-xitix
From the result of table 1, the tackiness agent of the inventive method preparation has all reached the intensity of structure glue.
Embodiment 5
With 6
#Mn alloy plate is got long 250mm, and the lath of thick 60mm with blasting method rust cleaning and grease, is coated with respectively with acrylic binder of the present invention and epoxy resin binder before bonding as test specimen,, two test pieces are overlapped.The test specimen that is coated with epoxy resin binder in baking oven 175 ℃ solidified 2 hours, be coated with the test specimen of acrylic binder, solidified 24 hours 25 minutes location of normal temperature, thinks completely solidified.Test its shearing resistance with omnipotent puller system then, every kind of glue simultaneously bonding at least three average.The results are shown in Table 2
The different glue bond strength ratios of table 2
| Certificate number | The kind of glue | Curing | Carrying P (T) | Glued joint area (cm 2) | Shearing stress (kg/cm 2) |
| 1 | Epoxy glue | 175 ℃ 2 hours | 16.20 | 76.7 | 211 |
| 2 | ″ | ″ | 18.30 | 82.01 | 223 |
| 3 | Acrylate adhesive | Room temperature | 17.3 | 81.78 | 211 |
| 4 | ″ | ″ | 16.2 | 77.22 | 214 |
Suitable substantially by the visible acrylic binder of table 2 with the epoxy resin binder bonding strength, but can be heating and curing.
Embodiment 6
Get one section of 75kg/m rail, rail is the same with clamping plate length to be 500mm, with emery wheel iron rust and grease are removed in the bonding plane polishing, with the tackiness agent of embodiment 4 by 1: the 1(weight ratio) mix, be applied to respectively on the bonding plane of rail and clamping plate, after the cemented in place, (25 minutes) use bolted, add moment of torsion 50kg-m under the normal temperature, place ambient cure then.
Test shearing resistance with omnipotent puller system after the completely solidified, but loosen nut before the test is removed bolt pressure, also can not remove bolt pressure.The results are shown in Table 3
Table 3, bonding 75kg/m rail result
| Rail profile amasss cm | Pt T | PH T | P carrying pulling force T | Bond area cm | Shearing force kg/cm | Experimental phenomena |
| 95.0 | 109.3 | 120.2 | 248 | 1104 | 223 | Glued membrane fracture (removing bolt pressure) |
| 95.0 | 109.3 | 120.2 | 272 | 1104 | 246 | Glued membrane fracture (not removing bolt pressure) |
The joint bonding force is two times of requirements that reach " freezing " joint fully of corresponding PH as seen from Table 3.
Embodiment 7
Get the long standard rail of 75kg/m, splice bar and rail bonding plane handled with sand papering, use the acetone oil removing again after, become the long rail of 500M with the tackiness agent bonding (method is with embodiment 6) of embodiment 4, the normal temperature placement was changed on the Beijing-Guangzhou Railway after 48 hours.Through operation in 3 years, every day, passenger vehicle was more than 60 time, and carrying capacity reaches more than 200,000,000 ton, joint, rail slit no change.
Claims (5)
1, with the method for reaction-ing adhesive adhering rail joint, it is characterized in that used tackiness agent is a modification acrylate class two-component adhesive.During adhering rail joint, only need first, second two components are mixed by 1: 1 (weight ratio), be applied on the bonding plane that gives first rust cleaning, removes grease, behind the bonding location, add bolted, then ambient cure.
2,, it is characterized in that the composition and the consumption of the two components of said modified acrylic ester as binder is as follows by the method for claim 1:
3, by the method for claim 2, it is characterized in that having adopted in the modified acrylic ester as binder first component-hydroxyethyl dihydroxyphenyl propane double methacrylate is as reactive monomer, and used relatively large ABS and nitrile rubber as elastomerics.
4, by claim 2,3 method, it is characterized in that having adopted N in the modified acrylic ester as binder component B N, the compound also first system of xylidine-vitamins C-acetate-urea.
5, with claim 2,3 or the said modification acrylate two-component adhesive of goods can bonding 50kg/m.60kg/m.75kg/m rail joint and the long rail joint of 25m standard.Give before bonding earlier with bonding plane through the sanding rust cleaning, remove grease, then with first, second two components by 1: the 1(weight ratio) mix, be applied on the bonding plane, behind the bonding location, add bolted, put ambient cure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104718 CN1015468B (en) | 1990-07-25 | 1990-07-25 | Modified acrylate adhesive for adhering steel rail at normal temp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104718 CN1015468B (en) | 1990-07-25 | 1990-07-25 | Modified acrylate adhesive for adhering steel rail at normal temp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1048877A true CN1048877A (en) | 1991-01-30 |
| CN1015468B CN1015468B (en) | 1992-02-12 |
Family
ID=4878702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104718 Expired CN1015468B (en) | 1990-07-25 | 1990-07-25 | Modified acrylate adhesive for adhering steel rail at normal temp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1015468B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035772C (en) * | 1992-01-16 | 1997-09-03 | 中国林业科学研究院林产化学工业研究所 | Method of preparation of acrylic acid adhesive |
| CN102329574A (en) * | 2011-08-12 | 2012-01-25 | 上海邦中高分子材料有限公司 | Tackiness agent for automobile tank |
| CN101802119B (en) * | 2007-09-26 | 2012-08-29 | 电气化学工业株式会社 | Adhesive compositions and jointing method |
| CN106087617A (en) * | 2016-08-08 | 2016-11-09 | 江苏晋德铁路器材有限公司 | Rail insulated joint glueds joint the device that is heating and curing |
| CN108330747A (en) * | 2018-02-05 | 2018-07-27 | 江阴市双友空调机械有限公司 | A kind of novel steel rail insulating joint splicing protective device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463235B (en) * | 2007-12-18 | 2010-11-10 | 湖北回天胶业股份有限公司 | High elongation rate acrylic ester adhesive |
-
1990
- 1990-07-25 CN CN 90104718 patent/CN1015468B/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1035772C (en) * | 1992-01-16 | 1997-09-03 | 中国林业科学研究院林产化学工业研究所 | Method of preparation of acrylic acid adhesive |
| CN101802119B (en) * | 2007-09-26 | 2012-08-29 | 电气化学工业株式会社 | Adhesive compositions and jointing method |
| CN102329574A (en) * | 2011-08-12 | 2012-01-25 | 上海邦中高分子材料有限公司 | Tackiness agent for automobile tank |
| CN106087617A (en) * | 2016-08-08 | 2016-11-09 | 江苏晋德铁路器材有限公司 | Rail insulated joint glueds joint the device that is heating and curing |
| CN106087617B (en) * | 2016-08-08 | 2018-06-22 | 江苏晋德铁路器材有限公司 | Rail insulated joint is glued the device that is heating and curing |
| CN108330747A (en) * | 2018-02-05 | 2018-07-27 | 江阴市双友空调机械有限公司 | A kind of novel steel rail insulating joint splicing protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1015468B (en) | 1992-02-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2002361547C1 (en) | Adhesives for bonding composites | |
| CA1331495C (en) | Adhesive for low temperature applications | |
| CN1320074C (en) | Methacrylate structural adhesive | |
| AU2002361547A1 (en) | Adhesives for bonding composites | |
| CN1048877A (en) | Use modified acrylate adhesive for adhering steel rail at normal temp | |
| CN101580699B (en) | Polyurethane sealant and preparation method thereof | |
| KR960011143B1 (en) | Acid modified adhesive compositions | |
| CN105121573A (en) | Galvanized metal bonding adhesive formulation and process for the use thereof | |
| CN112521869B (en) | High-toughness transparent double-component acrylate adhesive and preparation method thereof | |
| CA2062084C (en) | Method for producing friction composition | |
| CN113416422A (en) | Epoxy asphalt caulking material and preparation method and application thereof | |
| CN1060860A (en) | Method with modified acrylic ester as binder normal temperature binding steel rail | |
| CN111705651A (en) | Antiskid wearing layer for steel bridge deck pavement and maintenance method | |
| Stenko et al. | Thin polysulfide epoxy bridge deck overlays | |
| JP2020533441A (en) | One-component reinforced epoxy adhesive | |
| EP0279777B2 (en) | Adhesive film | |
| CN103510445A (en) | Conductive ultra-thin wearing layer and preparation method thereof | |
| CN114290772B (en) | High-strength constrained damping material and preparation method thereof | |
| KR101823137B1 (en) | Bridge pavement waterproof and anti-corrosion structure of quick hardening type | |
| JP2016532762A (en) | Internal mold release agent for reinforced composites | |
| JPH083907A (en) | Constructing method for anti-skid pavement of surface of covering plate | |
| CN1104231A (en) | Metal-repairing binder capable of being machined | |
| EP0214970A1 (en) | A high frictional coefficient coating for rubber tires of vehicles | |
| CN1259492C (en) | Steel structure reinforcing method | |
| KR102688342B1 (en) | Thin-layer overlay pavement construction method using a thin-layer overlay packaging material composition with excellent slip resistance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |