CS224946B1 - The mixture for the corrosion prevention of steel surfaces - Google Patents
The mixture for the corrosion prevention of steel surfaces Download PDFInfo
- Publication number
- CS224946B1 CS224946B1 CS472582A CS472582A CS224946B1 CS 224946 B1 CS224946 B1 CS 224946B1 CS 472582 A CS472582 A CS 472582A CS 472582 A CS472582 A CS 472582A CS 224946 B1 CS224946 B1 CS 224946B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- mixture
- steel surfaces
- corrosion prevention
- layer
- epoxyide
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 4
- 239000010959 steel Substances 0.000 title claims description 4
- 239000000203 mixture Substances 0.000 title description 4
- 238000005536 corrosion prevention Methods 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000004848 polyfunctional curative Substances 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 239000004593 Epoxy Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 7
- 238000009413 insulation Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
Vynález ee týká protikorozní ochrany ocelových povrchů na bázi dvousložkové epoxidehtové hmoty·The invention relates to the corrosion protection of steel surfaces based on a two-component epoxy resin.
Dosud známé způsoby protikorozní ochrany zahrnují izolování armatur a tvarovek např. teplým tekutým bitumenem, který dobře přilne na kov. Izolační vretva však málo odolává mechanickému namáhání a proto ae chrání opláštěním nebo bandážemi, přičemž může dojít k chybám vzniklým nepravidelností vnějších geometrických tvarů· Tato práce je náročná na odbornost a pečlivost pracovníků. Stejně tak je velmi náročná na zodpovědnost pracovníků další metoda využívající k izolaci složitých povrchů ustavování přířezů z asfaltových izolací. Další známý způsob je izolace tvořená nátěrem epoxidehtu a mechanickou ochranou této vrstvy. Tloušťka vrstvy epoxidehtu musí být nejméně 0,5 mm. K zajištění této tloušťky je třeba 3 opakovaného nátěru, přičemž časový odstup mezi jednotlivými nátěry je 15 - 20 ho din. Tloušťka mechanické ochranné vrstvy je 2,5 cm. Vlivem dilatace nebo kontrakce však může dojít k popraskání této vrstvy a k selháni funkce protikorozní ochrany·Previously known corrosion protection methods include insulating fittings and fittings with, for example, warm liquid bitumen that adheres well to the metal. However, the insulating layer does not withstand mechanical stress and is therefore protected by sheathing or bandages, and errors due to irregularities in external geometric shapes may occur. This work is demanding on the expertise and diligence of the workers. It is also very demanding for the responsibility of workers to use another method of using asphalt blanks to insulate complex surfaces. Another known method is an insulation consisting of an epoxyide paint coating and a mechanical protection of this layer. The thickness of the epoxyide layer must be at least 0.5 mm. To ensure this thickness, 3 repaints are required, with a time span of 15 to 20 hours between the coatings. The thickness of the mechanical protective layer is 2.5 cm. However, due to dilatation or contraction, this layer may crack and the corrosion protection function may fail.
Nevýhody odstraňuje vynález, jehož podstatou Je směs sestávající z 50 až 86 % hmot· epoxidehtu, 45 až 5 % hmot· práškového polyetylénu a 4 až 10 % hmot· dispergovaného kysličníku křemičitého s přídavkem epoxivtužidla· **Disadvantages of the invention are based on a mixture consisting of 50 to 86% by weight of epoxyide, 45 to 5% by weight of powdered polyethylene and 4 to 10% by weight of dispersed silica with the addition of epoxy-hardener. **
Výhodou směei podle vynálezu je, že neetéká a výborně lpí na kovu, postačující ochranná vrstva 2 mm ee docílí v jedné operaci. Doba vytvrzení je 48 hodin při 20°C. Vytvrzený materiál je velmi odolný vůči erozi, agresivnímu prostředí, účinkům stejnosměrného proudu a má vysokou mechanickou odolnost. Vyznačuje se výtečnou adhezi ke kovovému povrchu· Kdyby i přes vysokou mechanickou odolnost došlo k poškození již vytvrzené izolace, lze nanesením směsi podle vynálezu na poškozené místo docílit doko224 946 nalého spojení nově nanesené vrstvy s vrstvou již vytvrzenou. Materiál je odolný vůči popraskání vlivem dilatace nebo kontrakce.The advantage of the composition according to the invention is that it does not flow and adheres perfectly to the metal, a sufficient protective layer of 2 mm ee in one operation. The curing time is 48 hours at 20 ° C. The cured material is highly resistant to erosion, aggressive environments, direct current effects and has high mechanical resistance. It is characterized by excellent adhesion to the metal surface. If, despite the high mechanical resistance, the already cured insulation is damaged, the application of the compound according to the invention to the damaged area can result in a fully bonded newly applied layer with the already cured layer. The material is resistant to cracking due to dilatation or contraction.
PříkladExample
780 g nízkoviskozního epoxidehtu, 170 g práškového polyetylénu, 30 ‘g jemně dispergovaného SiOg a 20 g dietylentriaminu se dobře promísí a nanáší stěrkou ve 2 mm vrstvě na ocelový, očištěný a odmaštěný povrch. Po vytvrzení směsi asi po 24 hodinách při 20°C vznikne velmi pevná neprodyšná izolační vrstva, odolná vůči popraskáni.780 g of low-viscosity epoxyide, 170 g of polyethylene powder, 30 g of finely dispersed SiOg and 20 g of diethylenetriamine are mixed well and applied with a 2 mm trowel on a steel, cleaned and degreased surface. After curing the mixture after about 24 hours at 20 ° C, a very strong, airtight, crack-resistant insulation layer is formed.
Vynálezu lze využít zejména v organizacích provádějících stavbu úložných potrubí·The invention can be used in particular in organizations carrying out the construction of storage pipelines.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS472582A CS224946B1 (en) | 1982-06-24 | 1982-06-24 | The mixture for the corrosion prevention of steel surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS472582A CS224946B1 (en) | 1982-06-24 | 1982-06-24 | The mixture for the corrosion prevention of steel surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS224946B1 true CS224946B1 (en) | 1984-02-13 |
Family
ID=5390660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS472582A CS224946B1 (en) | 1982-06-24 | 1982-06-24 | The mixture for the corrosion prevention of steel surfaces |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS224946B1 (en) |
-
1982
- 1982-06-24 CS CS472582A patent/CS224946B1/en unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| PE | Corrosion of linings & coatings: cathodic and inhibitor protection and corrosion monitoring | |
| KR100897417B1 (en) | Two liquids type composition of ceramic anticorrosive paint | |
| JPH0249155B2 (en) | ||
| CS224946B1 (en) | The mixture for the corrosion prevention of steel surfaces | |
| CA2237448C (en) | Pipe-coating method and product | |
| WO1999023280A2 (en) | Corrosion-inhibiting polysulfide sealants | |
| KR102051586B1 (en) | Paint composition for waterproof, anticorrosion and reinforcement including ceramic, fiber and polymer resin, and method for surface protection, repair and reinforcement using the same | |
| JPH0832850B2 (en) | Anticorrosion construction method for underwater steel structure | |
| JPS62158152A (en) | Composition for protective coating | |
| US4514467A (en) | Method of obtaining a positive bond between painted articles and concrete | |
| Neffgen | Epoxy resins in the building industry—25 years of experience | |
| CS276709B6 (en) | Epoxydeh based corrosion protection compound | |
| JPS6159273B2 (en) | ||
| CN1311965C (en) | Bituminous composite elements | |
| RU2155736C1 (en) | Method for formation of multilayer concrete-protection coating, ground composition for multilayer concrete-protection coating, and cover composition for multilayer concrete-protection coating | |
| KR0130160B1 (en) | Ascon bonding method of steel plate | |
| EP0091908A1 (en) | A method and composition for substrate coating | |
| Hededahl et al. | Field investigation of epoxy-coated reinforcing steel | |
| JP3796580B2 (en) | Paint additive composition | |
| JPS5876465A (en) | Corrosion proof covering material | |
| RU27850U1 (en) | PIPE WITH MULTIFUNCTIONAL LAYERED COATING | |
| JPH05155649A (en) | Surface coating agent, cement mending agent and joint sealant | |
| Norman et al. | Polyurethane and epoxy coatings for the rehabilitation and repair of pipelines | |
| JPS6040477A (en) | Prevention of reinforced concrete structure from deterioration | |
| KR101908081B1 (en) | Adhesion waterproof and anti-corrosion coating composition and spc process using the same |