Coating classification: nano silicon carbide high emissivity energy saving coating

Core tip: Jane Medium: nano silicon carbide high emissivity energy-saving coating adopts the technology of preparing nano silicon carbide powder by combustion synthesis in the air Compared with the traditional production technology, the advantages of this process are: the reaction synthesis process can be carried out in the air without additional heat source and input of reaction equipment, which is a typical energy-saving and consumption reducing technology; the reaction raw materials are conventional industrial products, with low cost and easy access It can ensure the high purity of the product; the mechanical activation treatment time is short, the combustion synthesis reaction speed is fast, making the whole production cycle shorter; the synthesized silicon carbide powder has fine and uniform particle size, which is nano without crushing and grinding Shenyang steel structure fireproof coating construction expert punde Building Fire Engineering Co., Ltd Recommended introduction: since its establishment, Shenyang punde Construction Fire Engineering Co., Ltd has cultivated a group of professional construction teams with excellent equipment, rich experience and serious responsibility with advanced and scientific management methods and strict engineering quality assurance and after-sales service system It has undertaken a number of fire system installation projects, which has been praised by customers Every idea and special requirement of you will be fully considered by us and fully realized in the construction technology, which will become the cornerstone of our successful long-term development We are looking forward to your invitation, to provide you with quality services and high-quality technical support! All construction coatings have passed ISO9001 Home of coatings: Introduction: nano silicon carbide with high emissivity and energy saving Compared with the traditional production technology, this process has the following advantages: the reaction synthesis process can be carried out in the air without additional heat source and input of reaction equipment, which is a typical energy-saving and consumption reducing technology; the reaction raw material is conventional industrial product, which is low cost, easy to obtain, and can ensure the high purity of the product; The mechanical activation treatment time is short, the combustion synthesis reaction speed is fast, which makes the whole production cycle shorter; the synthesized silicon carbide powder has fine and uniform particle size, which is nano-sized ultra-fine powder without crushing and grinding The application of nano SiC high emissivity energy-saving coating can increase the surface blackness of the substrate; due to the absorption and radiation of the substrate surface, the spectrum distribution of heat radiation in the heat transfer area is changed, and the discontinuous spectrum from the heat source is transformed into the continuous spectrum, so as to promote the heat absorption of the heated object; most of the high-temperature radiation energy is concentrated in 1-5 The emissivity of general coating in μ M band is very low, which is harmful to high temperature radiation Infrared radiation coating can make up for this deficiency Nano SiC high emissivity energy-saving coating adopts nano powder Compared with micro powder, nano SiC high emissivity energy-saving coating destroys all kinds of inherent chemical bonds in the original material, weakens all kinds of interaction forces between particles, increases the even spacing between the basic micro particles of the constituent material, so the number of particles per unit volume will be significantly reduced, which can improve the thermal radiation The transmission depth can reduce the absorption index and further improve the emissivity of the object Nano SiC high emissivity energy saving coating is a new type of industrial coating with excellent performance Features: the performance characteristics of nano silicon carbide high emissivity energy-saving coating are as follows: 1) the structure of nano silicon carbide high emissivity energy-saving coating is stable, which is applicable in medium and high temperature environment; 2) the hemispherical omnidirectional emissivity ε of nano silicon carbide high emissivity energy-saving coating is higher than 0.85 from room temperature to 1400 ℃, and the attenuation is slow at high temperature; 3) Nano silicon carbide high emissivity energy-saving coating has good adhesiveness and can be firmly bonded on the substrate under the repeated use conditions from normal temperature to high temperature without cracking or falling off; 4) nano silicon carbide high emissivity energy-saving coating can protect the substrate material and has a long service life; 5) Nano silicon carbide high emissivity energy-saving coating is simple in construction, less in investment, quick in effect, safe and pollution-free, and widely used; 6) nano silicon carbide high emissivity energy-saving coating has significant energy-saving effect, up to more than 15% Technical indicators: see the following table for technical indicators of nano silicon carbide high emissivity energy saving coating: applicable temperature / ℃ 600-1500 fire resistance / ℃ ≥ 1790 specific gravity / (kg / m3) 1.65-1.90 viscosity / s 12 pH value 7-8 normal full band emissivity (ε) ≥ 0.85 thermal expansion coefficient (20-1450 ℃) 6.5-7.0 × 10-6 oxidation weight gain rate (1350 ℃) /% ≤ 7 Thermal shock resistance times (1100 ℃) ≥ 12 scope of application: 1) nano silicon carbide energy-saving coating with high radiation rate can be used for steel rolling heating furnace, various heat treatment furnaces, high-temperature hot blast furnaces, tunnel kilns and various boiler furnaces in metallurgy, petrochemical, ceramics, medicine, machinery and other industries No matter what kind of energy is used for electricity, gas, oil and coal, the furnace can be used conveniently, which can not only improve the heating speed, but also improve the heating quality and furnace temperature uniformity, and obtain good energy-saving effect 2) When the recovery cabin of the heat dissipating (aviation and military) return type spacecraft passes through the atmosphere and returns to the ground from the sky, due to the friction and heating of the atmosphere, its surface temperature is as high as over 1000 ℃ If there is no heat protection measures, the spacecraft will burn in the air One of the solutions is to apply a high emissivity coating on the spacecraft skin surface as a radiation and heat protection structure to enhance radiation and achieve the purpose of heat dissipation Storage: nano silicon carbide high emissivity energy-saving coating is generally shipped in slurry or paste barrels, or in powder bags Slurry can be used without or with a small amount of water, paste or powder need to add more water, need to fully mix evenly The packaged coating shall be stored in a cool place, strictly protected from freezing and exposure, and can be stored for 6 months at normal temperature Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,