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Ceramic coating and its preparation method and use

A technology of ceramic coating and ceramic powder, which is applied in lighting and heating equipment, furnaces, furnace components, etc. The effect of improving wear resistance and high heat utilization rate

Inactive Publication Date: 2013-10-09
BEIJING BEIRUIDA PHARMA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new ceramic coating and its preparation method in order to overcome the defects of poor wear resistance, corrosion resistance and anti-contamination and slagging performance of the coating formed by the existing nano-cermet coating and application

Method used

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  • Ceramic coating and its preparation method and use
  • Ceramic coating and its preparation method and use

Examples

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preparation example Construction

[0041] Preferably, in order to ensure that the ceramic coating has better overall performance, the preparation method of the ceramic coating comprises the following steps:

[0042] (1) mixing and grinding the ceramic powder and the rare earth metal oxide to obtain a first mixed powder;

[0043] (2) mixing and grinding the first mixed powder with titanium nitride, zirconium nitride and the optionally added titanium alloy and the transition metal oxide to obtain a second mixed powder;

[0044] (3) Mixing the second mixed powder with the binder.

[0045] In the above method, the amount of the ceramic powder, the rare earth metal oxide, titanium nitride, zirconium nitride, the binder, and the selectively added transition metal oxide and the titanium alloy and their The types of substances make the final prepared ceramic coating meet the basic embodiment, preferred embodiment or most preferred embodiment of the aforementioned ceramic coating of the present invention.

[0046] In ...

Embodiment 1

[0056] This example is used to illustrate the ceramic coating provided by the present invention and its preparation method.

[0057] 86 parts by weight of CaHPO 4 2H 2 O and 14 parts by weight of calcium carbonate were mixed to obtain 100 parts by weight of ceramic powder. The ceramic powder is mixed with 30 parts by weight of rare earth metal oxide (composed of yttrium oxide, lanthanum oxide and cerium oxide, and the weight ratio of yttrium oxide, lanthanum oxide and cerium oxide is 1:1.3:1.6), and wet Ball milling for 5 hours; then add 30 parts by weight of titanium dioxide nitride, 30 parts by weight of zirconium nitride, 30 parts by weight of transition metal oxides (by titanium oxide, chromium oxide, zinc oxide, vanadium oxide, manganese oxide and oxide Iron composition, and the weight ratio of titanium oxide, chromium oxide, zinc oxide, vanadium oxide, manganese oxide and iron oxide is 100:100:60:20:10:15) and 20 parts by weight of titanium-molybdenum alloy (purchased ...

Embodiment 2

[0059] This example is used to illustrate the ceramic coating provided by the present invention and its preparation method.

[0060] 88 parts by weight of CaHPO 4 2H 2 O and 12 parts by weight of calcium carbonate were mixed to obtain 100 parts by weight of ceramic powder. The ceramic powder is mixed with 40 parts by weight of rare earth metal oxide (composed of yttrium oxide, lanthanum oxide and cerium oxide, and the weight ratio of yttrium oxide, lanthanum oxide and cerium oxide is 1:1.1:2), and wet Ball milling for 5 hours; then add 20 parts by weight of titanium dioxide nitride, 50 parts by weight of zirconium nitride, 10 parts by weight of transition metal oxides (by titanium oxide, chromium oxide, zinc oxide, vanadium oxide, manganese oxide and oxide Iron composition, and the weight ratio of titanium oxide, chromium oxide, zinc oxide, vanadium oxide, manganese oxide and iron oxide is 100:120:40:10:20:5) and 40 parts by weight of titanium-lead alloy (purchased from Jina...

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Abstract

The invention relates to a ceramic coating and its preparation method and use. The ceramic coating comprises ceramic powder, titanium nitride, zirconium nitride, rare-earth oxides and a binder. Based on 100 weight parts of the ceramic powder, in the ceramic coating, the content of titanium nitride is in a range of 10-80 weight parts, the content of zirconium nitride is in a range of 10-80 weight parts, the content of the rare-earth oxides is in a range of 5-50 weight parts, and the content of the binder is in a range of 5-80 weight parts. The ceramic powder is a calcium hydrogen phosphate-calcium carbonate compound. The rare-earth oxides comprise yttrium oxide, lanthanum oxide and cerium oxide. The invention also relates to a use of the ceramic coating in forming of a coating layer on an inner wall of a heating furnace. The ceramic coating layer prepared from the ceramic coating has obviously improved wear resistance, corrosion resistance and contamination and slag-bonding resistance, and also has a high thermal radiation rate and thermal shock resistance.

Description

technical field [0001] The invention relates to a ceramic coating, a preparation method of the ceramic coating, and an application of the ceramic coating in forming a coating on the inner wall of a heating furnace. Background technique [0002] Global climate change has a profound impact on human survival and development, and low-carbon technology has increasingly become an international hot spot and trend. Low-carbonization will drive the real economy from two aspects, one is to accelerate the development of new energy industries such as solar energy and wind energy, and the other is to upgrade traditional industries to low-carbonization, both of which cannot be separated from the support of related new material industries. [0003] China's petrochemical industry accounts for 20% of the total industrial economy and is very important to the national economy. The petrochemical industry includes two major parts: petroleum, petrochemical and chemical industry. Various heating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66F27D1/00
Inventor 周亦张
Owner BEIJING BEIRUIDA PHARMA TECH
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