16 results about "Thermal shock" patented technology

The invention relates to a fire resistant material radiation energy saving paint painted at the inner liner of the furnace, which belongs to the inorganic paint field. The radiation energy saving paint is mixed of powder and water, wherein the composition of the powder is as follows: binding material accounting for 1 percent to 4 percent, filling material accounting for 34 percent to 65 percent and radiating material accounting for 34 percent to 65 percent. The weight ratio of the powder and the water is 1:1 to 1.6. The binding material is composed of quick-dissolving sodium silicate powder of 70 percent to 100 percent and carboxymethyl cellulose of 0 percent to 30 percent, the filling material is composed of fused silica powder of 60 to 100 percent, high temperature alumina powder of 0 percent to 40 percent, clay of 0 percent to 3 percent and zircon powder of 0 percent to 30 percent of, and the radiating material is composed of silicon carbide of 45 percent to 84 percent, ferric oxide of 0 percent to 15 percent, cerium oxide of 0 percent to 30 percent and manganese dioxide of 0 percent to 10 percent. The radiation energy saving paint of the invention has the advantages that the thermal shock resistance is superior, the heat insulating property is good, the radiation coefficient is high, and the operation of the preparation technology is simple and convenient.

The invention relates to a device and a method in the testing technical field, in particular to a synchronization testing device and a testing method of thermal barrier performance and thermal shock performance of a thermal barrier coating. The method enables the thermal barrier performance and the thermal shock performance of the thermal barrier coating to be obtained simultaneously and temperature change of a test sample in a thermal shock performance testing process to be recorded in detail, and facilitates deep analysis of the thermal shock failure mechanism of the test sample. According to the testing method, heating and cooling methods of the test sample can be determined as needed, and therefore serving conditions of a thermal barrier coating component can be simulated close to reality, quality of the thermal barrier coating can be tested accurately, the service life of the thermal barrier coating can be estimated accurately, and further the spraying effect of the serving component under a high-temperature working condition can be effectively estimated.

The invention discloses a silicon carbide foamed ceramic, and a liquid metal filter produced therefrom. The silicon carbide foamed ceramic is produced through the following steps: performing a hydrosilylation reaction on polycarbosilane and vinyl group-containing silane to synthesize thermosetting polycarbosilane, performing impregnation by using organic foam as a template to obtain an organic foam preform containing the thermosetting polycarbosilane, performing heat treatment on the foam preform to achieve solvent removal and polycarbosilane cross-linking and solidifying, and finally carryingout high-temperature pyrolysis to obtain the silicon carbide foamed ceramic. The silicon carbide foamed ceramic has characteristics of high strength, excellent temperature resistance, excellent thermal shock resistance and excellent heat conduction performance, and has great application values in the filtration of molten metal.

The invention relates to the field of refractory materials, in particular to a high-strength aluminum-resisting permeable castable as well as a preparation method and the application thereof. The high-strength aluminum-resisting permeable castable is prepared from the following components in parts by weight: recycled corundum, a brown fused alumina powder, an alumina powder, cement, a silica powder, barium sulfate, a carborundum powder, a dispersant and an explosion-proof agent. The high-strength aluminum-resisting permeable castable provided by the invention has the advantages of good construction performance, moderate hardening speed, good use performance, high strength, good wear resistance, good aluminum corrosion resistance and good thermal shock resistance; the high-strength aluminum-resisting permeable castable can be applied to various refractory environments which need high-strength aluminum-resisting permeable ability.

The invention discloses stainless steel crucible paint used for smelting an aluminum-lithium alloy as well as a preparation method thereof and a coating method thereof. In raw materials of stainless steel crucible paint, a binder accounts for 40-60% of all components, wherein aggregates are Y2O3 powder with grain size of 800-1000 meshes. The preparation method comprises the following steps: (1) uniformly mixing Al(OH)3 and MgO, adding water and phosphoric acid, and stirring to heat to a temperature of 50-80 DEG C; (2) adding aluminum powder, CrO3, zinc chrome and Y2O3 powder, and uniformly stirring; and (3) performing ball-milling mixing. The coating method comprises the following steps: grinding the inner surface of a stainless steel crucible, and heating the inner surface to a temperature of 70-90 DEG C; spraying paint to the inner surface of the crucible by a spray gun, heating up to a temperature of 800-850 DEG C to preserve heat after air-drying, and cooling along with a furnace.The paint disclosed by the invention has good thermal shock property and good chemical stability.

The invention discloses a composite high-strength Nixing pottery material which is characterized by comprising, by weight, 3-6 parts of east mud, 3-6 parts of west mud, 2-3 parts of clinker after calcination of Nixing potteries, 5-9 parts of zinc oxide, 0.3-0.6 part of serpentine, 0.6-0.8 part of spodumene, 4-7 parts of fine silicon carbide powder and 2-4 parts of tungsten molybdenum rare earth alloy powder. Silicon carbide is added into the Nixing pottery material, so that a forged green body has high hardness, thermal shock resistance and an excellent heat conductivity coefficient, smaller heat stress is applied onto the green body in the heating or cooling process, and the green body has excellent abrasion resistance by a sprayed tungsten molybdenum rare earth alloy.

The invention relates to a preparation method for improving thermal shock resistance of double-ceramic-layer TBCs. The method includes the following steps that pretreatment of powder materials is carried out; pretreatment of high temperature alloy base materials is carried out to obtain a bonding layer; a plasma spraying method is adopted for sequentially spraying YSZ powder and A2B2O7 powder to the bonding layer, and double-ceramic-layer thermal barrier coatings are obtained; and a laser remelting method is adopted for conducting remelting treatment on the double-ceramic-layer thermal barriercoatings in the third step, and finally the double-ceramic-layer TBCs with the thermal shock resistance are finally obtained. By means of the preparation method, the thermal shock resistance of the double-ceramic-layer TBCs is improved, and the high temperature service life of the double-ceramic-layer TBCs is greatly improved.

The invention discloses a refractory ceramic tile. The refractory ceramic tile comprises the following raw materials in parts by weight: 10-20 parts of modified asbestos powder, 15-25 parts of corundum sand, 7-13 parts of dolomite, 14-21 parts of perlite, 10-18 parts of modified quartz powder, 20-30 parts of bentonite, 15-25 parts of montmorillonite powder, 3-6 parts of mullite fibers, 4-9 parts of magnesium oxide, 2-4 parts of zirconium dioxide, 3-6 parts of nano aluminum hydroxide and 4-7 parts of a binding agent. According to the invention, the proportion among the raw materials are controlled, so that the prepared product is uniform in structure, good in mechanical property, excellent in thermal shock resistance and good in erosion resistance.

The invention relates to the technical field of needle-shaped coke rotary kilns, and specifically provides a high-tech material for a lining of a needle-shaped coke rotary kiln. The material comprisesan aggregate, a matrix, an ultrafine powder, and an admixture, and weight parts of each component are as follows: 60-75 parts of the aggregate, 15-25 parts of the matrix, 4-10 parts of the ultrafinepowder, and 1-5 parts of the admixture. A preparation method of the material comprises the following steps: (1) successively adding a certain amount of the aggregate, a fine powder material, and the ultrafine powder into mixing equipment according to the weight parts, and performing uniform mixing; (2) adding the admixture into the mixing equipment, and performing thorough stirring and uniform mixing to obtain a finished product; (3) performing detection; and (4) performing packaging. The high-tech material for the lining of the needle-shaped coke rotary kiln produced by the method shows excellent properties such as high-temperature resistance, wear resistance, scouring resistance, erosion resistance, and thermal shock resistance, an overall structure is good, and the service life is long,so that the material is an ideal material suitable for a lining of a needle-shaped coke rotary kiln under a temperature of 1450 DEG C-1550 DEG C for a long time.

The invention discloses a production process of high-temperature-resistant ceramic. The production process is characterized by comprising the following steps: 1) preparing raw materials; (2) preparing powder; 3) pulping; (4) casting and forming; 5) drying; 6) sintering; and (7) machining. The high-temperature-resistant ceramic is prepared from specific raw materials according to the proportion of the raw materials, and the produced ceramic has the main characteristics of high thermal shock resistance, high-temperature-resistant strength and high purity, does not pollute a nickel-based alloy, and can be manufactured into a crucible for smelting the nickel-based alloy.

A method of manufacturing an electronic device is provided. The method includes forming a stack structure by placing a to-be-peeled layer on a substrate, applying thermal shock to the stack structure, detaching the to-be-peeled layer from the substrate, and transferring the detached to-be-peeled layer to a target substrate.

The invention discloses an environment-friendly electroplating solution which is composed of 5g/L of metal ruthenium, 2g/L of nickel, 3g/L of manganese and 10g/L of ammonium sulfate. The electroplating method of the environment-friendly electroplating liquid comprises the following steps: step 1, selecting raw materials and metering tools; 2, preparing a solution; thirdly, the electroplating substrate is put into the electroplating liquid to be heated; fourthly, the heated electroplating liquid is treated; and fifthly, the base body is cleaned and blow-dried. The plating layer is bright and flat, the binding force between the copper plating layer and the base material is good, and the plating layer is compact, uniform, wear-resistant, corrosion-resistant, good in thermal shock resistance and good in high-temperature heat conduction and insulation performance.