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A nano-catalyzed metal-ceramic combined non-burning and non-immersing environment-friendly sliding plate and its preparation process

An environment-friendly, ceramic-bonded technology, which is applied in the field of high-temperature ceramics and refractory materials in the field of inorganic non-metallic materials, can solve the problems of low-temperature strength of non-burning slides, and achieve the goals of reducing sensitivity, excellent oxidation resistance, and saving energy consumption. Effect

Inactive Publication Date: 2017-02-08
RUITAI MATERIALS TECHNOLOGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The nano-catalyzed metal-ceramic combination non-burning and non-immersing environmentally friendly sliding board of the present invention is to add iron-containing nano-catalysts so that the non-burning sliding board passes through a relatively low temperature zone (600-700°C) during use. , the carbon source is coked into carbon nanotubes. Under the action of a catalyst, this kind of carbon nanotubes with high specific surface area and high reactivity can quickly react with metals to form a ceramic bonding phase, thereby solving the shortcoming of the low-temperature strength of the non-burning slide plate and reducing the slide plate. The sensitivity of the material to temperature improves the strength and reliability of the material

Method used

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  • A nano-catalyzed metal-ceramic combined non-burning and non-immersing environment-friendly sliding plate and its preparation process
  • A nano-catalyzed metal-ceramic combined non-burning and non-immersing environment-friendly sliding plate and its preparation process

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Experimental program
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Effect test

Embodiment 1

[0042] The skateboard is produced according to the following formula and process: (1) 200 mesh Suzhou soil 0.5%, magnesium boride 0.5%, 325 mesh zircon sand 6%, aluminum powder 2%, carbon black 1%, boron carbide 0.5%, 2μm α -Alumina powder at a ratio of 3%, the fine powder and micro powder are premixed vigorously for 20 minutes; (2) The resin is measured at a ratio of 5% of the composite resin, and the silicone resin and phenol resin are mixed at a ratio of 3:1. Add 3% of the total weight of the mixed liquid polycarboxylic acid dispersant to prepare the composite resin binder, then mix with 50 nanometers of catalyst ferrosilicon nanopowder 3% and ferrosilicon nitride nanopowder 1%, and disperse with ultrasonic for 20 minutes; (3 ) According to the ratio of 40% primary alumina with a particle size of 2~1mm, 25% of tabular corundum with a particle size of 1~0mm, 6% of mullite, 6% of silicon carbide, and 0.5% of aluminum fiber, dry blend for 3 minutes, add 1 % Composite resin bind...

Embodiment 2

[0048] The skateboard is produced according to the following formula and process: (1) 200 mesh Suzhou soil 1%, magnesium boride 1.5%, 325 mesh zircon sand 6%, aluminum powder 2.5%, carbon black 3%, boron carbide 1.5%, 2μm α -Premix the fine powder and the fine powder with a ratio of 10% of alumina powder for 15 minutes; (2) Measure the resin at the ratio of 6% of the composite resin, mix the silicone resin and phenolic resin at a ratio of 1:1, and Add 3% of the total weight of the mixed solution with polycarboxylic acid dispersant to prepare the composite resin binder, then mix with 200 nanometers of catalyst ferrosilicon nanopowder 2% and ferrosilicon nitride nanopowder 2%, and disperse with ultrasonic for 40 minutes; (3 ) According to the ratio of 25% primary alumina with a particle size of 2~1mm, 18% of tabular corundum with a particle size of 1~0mm, 9% of mullite, 15% of silicon carbide, and 1% of aluminum fiber, dry blend for 3 minutes, add 2 % Composite resin binder, then...

Embodiment 3

[0051] The skateboard is produced according to the following formula and process: (1) 200 mesh Suzhou soil 1%, magnesium boride 1%, 325 mesh zircon sand 10%, aluminum powder 5%, carbon black 1%, boron carbide 1%, 2μm α -Alumina powder at a ratio of 5%, the fine powder and micro powder are premixed vigorously for 20 minutes; (2) The resin is measured at a ratio of 4% of the composite resin, and the silicone resin and phenol resin are mixed at a ratio of 2:1. Add 2% of the total weight of the mixed solution with polycarboxylic acid dispersant to prepare the composite resin binder, then mix with 100 nanometers of catalyst ferrosilicon nanopowder 1% and ferrosilicon nitride nanopowder 3%, and disperse with ultrasonic for 30 minutes; (3 ) According to the ratio of 30% primary alumina with a particle size of 2~1mm, 15% of tabular corundum with a particle size of 1~0mm, 12% of mullite, 6% of silicon carbide, and 1.5% of aluminum fiber, dry blend for 2 minutes, add 3 % Composite resin ...

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Abstract

The invention relates to a nano-scale catalytic metal-ceramic bonding firing-free bitumen-impregnation-free environment-friendly slide plate and a preparation method thereof. The invention relates to the firing-free bitumen-impregnation-free environment-friendly slide plate and the process thereof. The invention relates to the field of a refractory material. The material comprises the raw materials of 25-40% granular first-grade alumina, 15-25% of tabular corundum, 6-12% of mullite, 6-15% of silicon carbide fine powder, 0.5-1% of clay, 0.5-2% of magnesium boride, 6-10% of zircon sand, 2-5% of aluminum powder, 1-3% of carbon black, 0.5-1.5% of boron carbide, 3-10% of alumina micro-powder, 0.5-1.5% of aluminum fiber, 1-3% of nano-powder ferrosilicon, 1-3% of iron silicon nitride, and 4-6% of a composite resin binder. The process comprises the following steps: resin, polycarboxylic acid and nano-powder are mixed to prepare the composite resin binder; the granular materials are dry-mixed; premixed powder and the binder are added; and mix grinding, aging, molding, drying, strapping, grinding, shell-applying, and packaging are carried out. The process does not require a firing step, such that energy is saved; and bitumen impregnation is not required, such that pollution is avoided. When the slide plate is applied in a continuous-casting large ladle, the slide plate can be used for continuous sliding more than 4 times. The slide plate can also be used in converter slag stopping.

Description

Technical field [0001] The invention relates to an environment-friendly sliding plate with a nano-catalytic metal-ceramic combination without burning or immersion and a preparation process thereof, and belongs to the field of high-temperature ceramics and refractory materials in the discipline of inorganic non-metallic materials. The invention is an environmentally friendly functional refractory material for continuous casting and converter slag retaining with low energy consumption, no pollution, low cost and short cycle. Background technique [0002] In the continuous casting production process, the sliding nozzle system is an important control device for the molten steel in the casting process of the continuous casting machine. It can accurately adjust the flow of molten steel from the ladle to the tundish, so as to balance the inflow and outflow of molten steel, so that the continuous casting Operation is easier to control. As a flow control element, the sliding plate is an ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B35/634
CPCC04B35/63448C04B35/63452C04B35/66
Inventor 曾鲁举陈松林蒋正跃刘仕范胡建坤胡洁胡列江周志峰王俊涛闫昕傅程
Owner RUITAI MATERIALS TECHNOLOGY CO LTD
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