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A kind of high-temperature lubrication anti-penetration nano-environmental protection coating and its preparation and application method

An environmentally friendly coating and anti-penetration technology, applied in alkali metal silicate coatings, coatings, etc.

Active Publication Date: 2021-04-16
贵阳联合高温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the deficiencies in the existing high-temperature resistance, the purpose of the present invention is to provide a high-temperature lubricating anti-penetration environmental protection coating and its preparation and use method, which can effectively protect the refractory material from being damaged, and do not mix any impurities in the aluminum alloy solution. The paint is harmless to the human body and has no pollution to the environment

Method used

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  • A kind of high-temperature lubrication anti-penetration nano-environmental protection coating and its preparation and application method

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Comparison scheme
Effect test

Embodiment 1

[0089] A high-temperature lubricating anti-penetration nano-environmental protection coating, which consists of 30% boron nitride, 0.5% nano-alumina, 10% silica sol, 1% liquid sodium silicate, 10% aluminum sol, and 1% nano-silica according to weight percentage. %, bentonite 0.5%, soft clay 0.5%, pure water 46.5%.

Embodiment 2

[0091] A high-temperature lubricating anti-penetration nano-environmental protection coating, according to the weight percentage, consists of 25% hexagonal boron nitride, 5% nano-alumina, 10% silica sol, 5% liquid sodium silicate, 10% aluminum sol, and nano-silica 5%, bentonite 2.5%, soft clay 1.0%, pure water 36.5%.

Embodiment 3

[0093] A high-temperature lubricating anti-penetration nano-environmental protection coating, which consists of 40% of hexagonal boron nitride with a particle size of 5-10 μm and 10-20 μm, 0.5% of nano-alumina, 10% of silica sol, and 2.5% of liquid sodium silicate. , aluminum sol 10%, nano silicon dioxide 1%, bentonite 0.5%, soft clay 0.5%, pure water 35%.

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Abstract

The invention discloses a high-temperature lubricating anti-penetration environmental protection coating, which consists of 25%-40% of boron nitride, 0.5%-10% of nano-alumina, 10%-15% of silica sol, and 1% of liquid sodium silicate in terms of weight percentage. % to 5%, aluminum sol 10% to 15%, nano silicon dioxide 1% to 5%, bentonite 0.5% to 2.5%, soft clay 0.5% to 1.0%, pure water 35% to 50%. The coating of the present invention is resistant to high temperature and can be widely used on the surface of refractory materials in contact with aluminum alloy liquid, such as launders, diverter plates, distribution launders, filter boxes, adapter plates, skimmers, casting table linings, etc. The refractory material is protected from the scouring, erosion and penetration of the aluminum alloy liquid, and more importantly, the aluminum alloy liquid is protected from the pollution of the refractory material. At the same time, the materials selected in the present invention are all inorganic materials, which is a green and environmentally friendly coating. The invention also discloses the preparation method and application method of the paint.

Description

technical field [0001] The invention relates to a high-temperature lubricating anti-penetration environmental protection coating and a preparation and application method thereof, belonging to the field of inorganic non-metallic materials. Background technique [0002] With the large-scale, high-speed, and large-scale equipment of aviation, aerospace, automobiles, and ships, higher requirements are put forward for the performance indicators of aluminum alloy structural materials such as high-strength deformation, high-tough deformation, high-strength heat resistance, and high-strength plasticity. The amount is also increasing, so a new concept is proposed for the refractory material used in the aluminum alloy melt channel, so that the refractory material neither sticks to the aluminum melt nor chemically reacts with the refractory material, so a kind of It is a high-temperature-resistant coating that can be evenly painted on the surface of the refractory material and adhered ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/02C09D7/61
CPCC09D1/02C09D7/61
Inventor 张成行
Owner 贵阳联合高温材料有限公司
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