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Barrier layer, sintering mold and preparation method thereof

A barrier layer and mold technology, applied in the field of building decoration materials, can solve problems such as difficult laying, easy tearing, and work environment pollution, and achieve the effects of easy demoulding, good high temperature resistance, and reduced environmental pollution

Active Publication Date: 2020-01-24
江西中材新材料有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, ceramic fiber paper is generally woven from ceramic fibers with a diameter of less than 5 μm. There are problems such as easy tearing, damage, and difficulty in laying at room temperature, and the adhesion between ceramic fiber paper and mold / shelf board is low, and it is easy to produce dead angles ( See figure 1 shown by the dotted circle), it is easily broken and pulverized after high temperature, causing pollution to the working environment and even affecting health

Method used

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  • Barrier layer, sintering mold and preparation method thereof
  • Barrier layer, sintering mold and preparation method thereof
  • Barrier layer, sintering mold and preparation method thereof

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preparation example Construction

[0084] An embodiment of the present invention also provides a method for preparing a sintered mold, comprising the following steps:

[0085] Weigh the solid powder raw materials of quartz sand, zirconia, alumina, carbide and nitride, then add solvent, stir evenly to obtain a mixed slurry; the carbide includes one of silicon carbide, tungsten carbide and boron carbide or more, the nitride includes one or more of silicon nitride, boron nitride and tungsten nitride;

[0086] A sintered mold body is provided, the mixed slurry is evenly coated on the surface of the sintered mold body, and after drying, a barrier layer is formed on the surface of the sintered mold body to obtain a finished sintered mold.

[0087] Optionally, the sintering mold body includes one or more of high temperature resistant kiln furniture, high temperature resistant mold and shelving. The high-temperature-resistant kiln furniture or high-temperature-resistant mold can be traditional existing kiln furniture ...

Embodiment 1

[0126] A method for preparing a sintered mould, comprising:

[0127] Weigh 10g of quartz sand, 2g of zirconia, 2.5g of alumina, 2g of tungsten carbide and 2g of boron nitride as solid powder raw materials, then add 30mL of 50% ethanol solution, and stir to obtain a mixed slurry;

[0128] Provide a mold and shed plate enclosed by four side plates and a bottom plate, apply the mixed slurry evenly on the inner surface of the mold and the surface of the shed plate, and dry at 100°C for 2 hours to obtain a barrier on the surface Layers of sintering molds and shelving boards.

Embodiment 2

[0130] A method for preparing a sintered mould, comprising:

[0131] Weigh 15g of quartz sand, 2g of zirconia, 10g of alumina, 2g of tungsten carbide and 2g of boron nitride as solid powder raw materials, then add 40mL of 50% ethanol solution, and stir to obtain a mixed slurry;

[0132] Provide a mold and shed plate enclosed by four side plates and a bottom plate, evenly coat the mixed slurry on the inner surface of the mold and the surface of the shed plate, and then sinter at 1600-1700°C for 10 hours to obtain a surface A sintering mold and a shelving plate with a barrier layer are formed.

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Abstract

The invention provides a barrier layer. The barrier layer is used for being arranged on the surface of a sintering mold for preparing foamed ceramic, wherein the composition of the barrier layer comprises quartz sand, zirconia, alumina, a carbide, and a nitride, the carbide comprises one or more of silicon carbide, tungsten carbide, and boron carbide, and the nitride comprises one or more of silicon nitride, boron nitride, and tungsten nitride. The barrier layer is used for being arranged on the surface of the sintering mold for preparing foamed ceramic, and the barrier layer is characterizedin that the composition of the barrier layer comprises quartz sand, zirconia, alumina, the carbide, and the nitride, wherein the carbide comprises one or more of silicon carbide, tungsten carbide, andboron carbide, and the nitride comprises one or more of silicon nitride, boron nitride, and tungsten nitride. The invention also provides the sintering mold and a preparation method of the sinteringmold.

Description

technical field [0001] The invention relates to the technical field of building decoration materials, in particular to a barrier layer, a sintering mold and a preparation method thereof. Background technique [0002] Foamed ceramic (foamed ceramic) material is a porous material with high temperature characteristics. It has excellent properties such as low thermal conductivity, light weight, high hardness, corrosion resistance, wear resistance, water seepage resistance and easy regeneration. It can be widely used It is used in many fields such as environmental protection, industrial and civil construction, national defense industry, petrochemical industry, municipal construction, underground engineering, road traffic, bridges and tunnels, biological planting, refrigeration industry and thermal equipment. [0003] Most of the foamed ceramic materials currently on the market are prepared in molds or kiln furniture at high temperatures, and use shelving boards that mainly suppor...

Claims

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Application Information

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IPC IPC(8): C04B35/14C04B30/00C04B35/63B28B1/50B28B7/36B28B7/38
CPCB28B1/503B28B7/36B28B7/38C04B30/00C04B35/14C04B35/6316C04B2111/00482C04B2235/3244C04B2235/3217C04B2235/3847C04B2235/386C04B2235/3886C04B14/06C04B14/306C04B14/303C04B14/322C04B14/327C04B24/02
Inventor 孔令珂彭也庆胡小强任丽敏冯唐涛
Owner 江西中材新材料有限公司
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