CN114437619A - Silicon carbide wear-resistant paint for repairing and protecting overcurrent component - Google Patents
Silicon carbide wear-resistant paint for repairing and protecting overcurrent component Download PDFInfo
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- CN114437619A CN114437619A CN202210350152.9A CN202210350152A CN114437619A CN 114437619 A CN114437619 A CN 114437619A CN 202210350152 A CN202210350152 A CN 202210350152A CN 114437619 A CN114437619 A CN 114437619A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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Abstract
The invention discloses a silicon carbide wear-resistant material for repairing and protecting an overcurrent component, and relates to the technical field of silicon carbide wear-resistant materials. The invention comprises the following components by weight percent: 46-51.3% of silicon carbide with the particle size of 0.1-1 mm, 9.9-11.83% of silicon carbide with the particle size of 0-0.1 mm, 4.5-4.93% of alumina powder, 1.8-2.34% of nano magnesium oxide, 2.93-3.6% of zirconia powder and 1.53-1.58% of silicon dioxide; 1.44-1.84% of additive and 26.28-28.8% of polyurethane modified vinyl resin. In the invention, silicon carbide is an essential part in a filler substance, and an oxide with average particle size smaller than that of the silicon carbide is added to fill gaps among the silicon carbide, so that the silicon carbide particles are more compact by matching the particle size of the silicon carbide particles; the polyurethane modified vinyl resin is used for improving the toughness of the wear-resistant material, and the purposes of improving the surface cohesion, wear resistance, bonding strength and fluid cavitation resistance of a cured product of the wear-resistant material are achieved.
Description
Technical Field
The invention relates to the technical field of silicon carbide wear-resistant coatings, in particular to a silicon carbide wear-resistant coating for repairing and protecting an overcurrent component.
Background
Silicon carbide wear resistant materials are used primarily for repair and protection of overcurrent components, often sold as high viscosity healers, which are mixed with curing agents to self-produce composite materials. Metal and alumina particles are generally used as filler materials, and embedding the filler materials into the material requires an adhesive, which acts as a bonding agent to fix the composite material to the surface of the object to be repaired, and the adhesive does not contribute to the abrasion strength in practice. Therefore, high levels of anti-wear filler materials are required to improve the anti-wear properties of the healant.
In the prior art, the composite wear-resistant paint adopts alumina or silicon carbide with the granularity less than or equal to 3mm as a filler and epoxy resin as an adhesive. Although the hardness, strength and adhesiveness of the wear-resistant material using the epoxy resin as the adhesive meet the requirements, after a large amount of filler is added, the constructability is sharply reduced, the brittleness is increased, the wear-resistant material can be used for dealing with pure physical wear, and the use effect of the wear-resistant material under the cavitation working condition is not ideal because the wear-resistant material does not have poor toughness.
Disclosure of Invention
In order to solve the technical problems, the invention provides a silicon carbide wear-resistant coating for repairing and protecting a flow passage component, which improves the surface cohesion, wear resistance, bonding strength and fluid cavitation resistance of a wear-resistant material.
In order to realize the technical purpose, the invention adopts the following scheme: the silicon carbide wear-resistant material for repairing and protecting the overcurrent component comprises the following components in percentage by weight: 46-51.3% of silicon carbide with the particle size of 0.1-1 mm, 9.9-11.83% of silicon carbide with the particle size of 0-0.1 mm, 4.5-4.93% of alumina powder, 1.8-2.34% of nano magnesium oxide, 2.93-3.6% of zirconia powder and 1.53-1.58% of silicon dioxide; 1.48-1.84% of additive and 26.28-28.8% of polyurethane modified vinyl resin; the average grain diameter of the alumina powder, the zirconia powder, the nano magnesia and the silicon dioxide is smaller than that of the silicon carbide.
Further, the average particle diameter of the alumina powder and zirconia powder is 4 μm and smaller than the average particle diameter of silicon carbide.
Further, the silicon dioxide adopts silicon dioxide particles in a highly dispersed state, wherein the cabot TS720 is imported CAB-O-SIL TS720 type silicon dioxide produced by cabot corporation of usa, and the product is commercially available silicon dioxide with stable and uniform properties.
Further, polyurethane modified vinyl resin is used as an adhesive, and is prepared by stirring commercially available Dusmann 6325 Netherlands at normal temperature.
Further, the additive is any one of tricresyl phosphate and di-tert-dodecyl polysulfide.
In the specific operation, the silicon carbide wear-resistant material is matched with a cyclohexanone peroxide curing agent, the purity (effective content) of cyclohexanone peroxide is more than or equal to 10%, and the dosage of the curing agent is 2.5% of the weight of the silicon carbide wear-resistant coating.
Compared with the prior art, the invention has the beneficial effects that: the wear-resistant coating is formed by using the filler substance and the adhesive, the silicon carbide is a necessary part in the filler substance, the aluminum oxide, the zirconium oxide, the silicon dioxide and the magnesium oxide are mixed in the filler substance as oxides, the average particle size of the oxides is smaller than that of the silicon carbide, gaps among the silicon carbide are filled with the oxides, and the silicon carbide particles are more compact by matching the particle sizes of the silicon carbide particles; the polyurethane modified vinyl resin is used for improving the toughness of the wear-resistant material, and the purposes of improving the surface cohesion, wear resistance, bonding strength and fluid cavitation resistance of a cured product of the wear-resistant material are achieved.
Detailed Description
The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention, but the present invention is not limited thereto.
The present invention uses silicon carbide as an essential component in the filler material, and alumina and/or zirconia as an oxide mixed therein, and a urethane-modified vinyl resin is an essential binder. While the relatively coarse silicon carbide particles with relatively sharp structures increase the wear strength, the fine-grained oxide fills the interstices between the silicon carbide particles, in this way increasing the bulk density. In use, the silicon carbide particles can slide along the oxide particles, thereby improving the workability of the wear-resistant material.
Alumina, as a ceramic oxide, has a high hardness, and in the mohs hardness scale, alumina is graded as 9.0, while silicon carbide has a hardness of 9.5, which is close to that of diamond. Because the alumina is easy to grind into fine-grained powder, the alumina is used as a part of the filler, which is beneficial to the wear resistance and the constructability. Preferably, the alumina is replaced by zirconia, or a mixture of both.
The silica is in the form of highly dispersed particles, preferably using carbopol TS-720. The incorporation of the cabot TS-720 increases the thixotropy of the wear resistant material, particularly on vertical surfaces. At the same time, the wear-resistant material can be applied in thick layers without causing flow and deformation thereof. In order to ensure high dispersion of the silica, it is mixed with the urethane-modified vinyl resin with high-speed stirring.
In order to ensure an effective packing density of the silicon carbide and oxide particles, the average particle size of the mixed oxide is significantly lower than the particle size of the silicon carbide.
The tricresyl phosphate, the di-tert-dodecyl polysulfide and the polyvinylpyrrolidone are compatible with the vinyl resin, so that the flexibility and the ductility of the coating are improved, and the coating is favorable for forming a uniform wear-resistant coating on the surface of the overflowing part to be repaired.
The cyclohexanone peroxide is used as the curing agent because the polyurethane modified vinyl resin (Dusmann 6325 Netherlands) has less reaction heat release and slow reaction speed with the cyclohexanone peroxide, and the wear-resistant material has less stress and strain when being hardened. Therefore, the wear-resistant material is completely hardened after 16-18 hours, and the hardening process is finished by 80% after 6 hours.
Example 1
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) was premixed with 250g of alumina having an average particle size of 4 μm and 180g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720), 100g of nano-magnesia and 80g of tricresyl phosphate, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abrasion resistant coating is then filled into storage containers or sales packaging. In order to realize the age hardening of the wear-resistant coating, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant coating is added and fully mixed again when in use. And then smearing the material on the overflowing part to be treated.
Example 2
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) were premixed with 230g of alumina having an average particle size of 4 μm and 150g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720), 120g of nano-magnesia and 80g of tricresyl phosphate, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Example 3
3400g of silicon carbide with a particle size of 1mm or less (2850 g of 0.1-1 mm silicon carbide and 550g of 0-0.1 mm silicon carbide) was premixed with 250g of alumina with an average particle size of 4 μm and 180g of zirconia with an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 85g of highly dispersed silica (Kabot TS-720), 100g of nano-magnesia and 80g of tricresyl phosphate, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Example 4
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) was premixed with 250g of alumina having an average particle size of 4 μm and 180g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720) and 100g of nano magnesium oxide, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Example 5
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) was premixed with 250g of alumina having an average particle size of 4 μm and 180g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720), 100g of nano-magnesia and 95g of tricresyl phosphate, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed fully for about 10min under vacuum. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Example 6
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) was premixed with 250g of alumina having an average particle size of 4 μm and 180g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720), 100g of nano-magnesia, 95g of tricresyl phosphate, and 50g of polyvinylpyrrolidone, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Example 7
3000g of silicon carbide having a particle size of 1mm or less (2400 g of 0.1 to 1mm silicon carbide and 600g of 0 to 0.1mm silicon carbide) was premixed with 250g of alumina having an average particle size of 4 μm and 180g of zirconia having an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720), 100g of nano-magnesia, 80g of di-t-dodecyl polysulfide, and 50g of polyvinylpyrrolidone, and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on the overflowing part to be treated.
Comparative example 1
3000g of silicon carbide with a particle size of 0.1 to 1mm are premixed with 250g of alumina with an average particle size of 4 μm and 180g of zirconia with an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720) and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed fully for about 10min under vacuum. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Comparative example 2
3000g of silicon carbide with a particle size of 0 to 0.1mm are premixed with 250g of alumina with an average particle size of 4 μm and 180g of zirconia with an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720) and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Comparative example 3
3000g of silicon carbide with a particle size of 1mm or less (1500 g of silicon carbide with a particle size of 0.1-1 mm and 1500g of silicon carbide with a particle size of 0-0.1 mm) were premixed with 250g of alumina with an average particle size of 4 μm and 180g of zirconia with an average particle size of 4 μm. Meanwhile, 1460g of polyurethane-modified vinyl resin (Dusmann 6325, the Netherlands) was mixed with 80g of highly dispersed silica (Kabot TS-720) and placed in a mixing and stirring vessel which could be evacuated. After that, the premixed silicon carbide/alumina/zirconia was gradually mixed in. In this process, all materials were thoroughly mixed. Finally, the mixed materials are further mixed thoroughly under vacuum for about 10 min. The abradable material is then placed in a storage container or sales package. In order to realize the age hardening of the wear-resistant material, a cyclohexanone peroxide curing agent accounting for 2.5 percent of the weight of the wear-resistant material is added and fully mixed again when in use. And then smearing the material on a flow passage component to be treated.
Comparative example 4
Common corrosion-resistant silicon carbide wear-resistant materials are available on the market.
The compositions of the components in the examples and comparative examples are shown in Table 1.
TABLE 1 table of contents of components in examples and comparative examples
The performance of the corrosion-resistant silicon carbide wear-resistant materials prepared in the examples and the comparative examples is tested, and the test results are shown in table 2. The wear resistance is tested on a rigid surface which is coated with a machine coating by a Taber abrasion machine, the tensile shear strength is measured by a GB/T7124-2008 adhesive tensile shear strength method, and the bending strength is detected by GB/T9341-2008.
Table 2 test results of product performance of examples and comparative examples
| Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 | Example 7 | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | |
| Abrasion resistance (mg) | 28.11 | 32.84 | 26.47 | 30.25 | 27.56 | 24.92 | 26.61 | 73.48 | 34.95 | 53.77 | 68.63 |
| Tensile shear Strength (MPa) | 23.8 | 24.2 | 22.1 | 20.3 | 25.4 | 27.1 | 24.7 | 15.1 | 18.6 | 20.1 | 16.5 |
| Flexural Strength (MPa) | 172 | 161 | 177 | 128 | 185 | 153 | 168 | 104 | 147 | 133 | 105 |
The content of the filler substance reaches more than 70 percent, which is obviously improved compared with the content of the filler substance in the composite material in the prior art, and the wear resistance of the material is improved on the premise of ensuring the constructability, the bonding strength and the cavitation resistance.
Finally, it is noted that: the above-mentioned list is only the preferred embodiment of the present invention, and naturally those skilled in the art can make modifications and variations to the present invention, which should be considered as the protection scope of the present invention provided they are within the scope of the claims of the present invention and their equivalents.
Claims (5)
1. The silicon carbide wear-resistant coating for repairing and protecting the surface of an overflowing component is characterized by comprising the following components in percentage by weight:
46 to 51.3% of silicon carbide with a particle size of 0.1mm to 1mm,
9.9 to 11.83% of silicon carbide with a particle size of 0 to 0.1mm,
4.5 to 4.93 percent of alumina powder,
1.8 to 2.34 percent of nano magnesium oxide,
2.93 to 3.6 percent of zirconia powder,
1.53-1.58% of silicon dioxide;
1.44 to 1.84 percent of additive,
26.28-28.8% of polyurethane modified vinyl resin;
the average grain diameter of the alumina powder, the zirconia powder, the nano magnesia and the silicon dioxide is smaller than the grain diameter of the silicon carbide.
2. The silicon carbide wear-resistant coating for repairing and protecting flow-through components according to claim 1, wherein the average particle size of the alumina powder and the zirconia powder is 4 μm.
3. The silicon carbide wear-resistant coating for repairing and protecting flow-through components of claim 1, wherein the silica is carbopt TS720 silica.
4. The silicon carbide wear-resistant coating for repairing and protecting flow-through components of claim 1, wherein the additive is any one of tricresyl phosphate and di-tert-dodecyl polysulfide.
5. A mixture of silicon carbide wear-resistant paint for repairing and protecting an overcurrent component is characterized in that a cyclohexanone peroxide curing agent with the purity of more than or equal to 10 percent is added when repairing and using, and the dosage of the curing agent is 2.5 percent of the weight of the silicon carbide wear-resistant paint according to any one of claims 1 to 4.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10247280A1 (en) * | 2002-10-10 | 2004-05-13 | SICcast Mineralguß GmbH & Co. KG | Composite material for repair and protection of metal surfaces comprises a binder and a filler consisting of silicon carbide plus a ceramic oxide with smaller round particles to increase the packing density |
| CN101955336A (en) * | 2009-07-13 | 2011-01-26 | SICcast矿物铸件两合公司 | Application of silicon carbide composite material |
| CN106277823A (en) * | 2016-08-26 | 2017-01-04 | 河北高富氮化硅材料有限公司 | A kind of grain size distribution improves the method for silicon nitride coating compactness |
| CN213475859U (en) * | 2020-11-10 | 2021-06-18 | 山西大同大学 | Quick repair coating for blade of paddle stirrer |
-
2022
- 2022-04-04 CN CN202210350152.9A patent/CN114437619B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10247280A1 (en) * | 2002-10-10 | 2004-05-13 | SICcast Mineralguß GmbH & Co. KG | Composite material for repair and protection of metal surfaces comprises a binder and a filler consisting of silicon carbide plus a ceramic oxide with smaller round particles to increase the packing density |
| CN101955336A (en) * | 2009-07-13 | 2011-01-26 | SICcast矿物铸件两合公司 | Application of silicon carbide composite material |
| CN106277823A (en) * | 2016-08-26 | 2017-01-04 | 河北高富氮化硅材料有限公司 | A kind of grain size distribution improves the method for silicon nitride coating compactness |
| CN213475859U (en) * | 2020-11-10 | 2021-06-18 | 山西大同大学 | Quick repair coating for blade of paddle stirrer |
Non-Patent Citations (1)
| Title |
|---|
| 胡传炘: "《特种功能涂层》", 30 September 2009, 北京工业大学出版社 * |
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| CN114437619B (en) | 2022-06-21 |
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