Black-increasing agent for high-temperature infrared-radiation energy-saving coating and preparation method of black-increasing agent

An energy-saving coating, high-temperature infrared technology, applied in coatings, sustainable manufacturing/processing, chemical industry, etc., can solve the problems of high cost, unstable performance of infrared radiation coatings, etc., to achieve extended service life, stable radiation rate, excellent The effect of abrasion resistance

Inactive Publication Date: 2012-07-25
KING STRONG MATERIAL ENG LTD
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of unstable performance and high cost of existing infrared radiation coatings, the present invention proposes a blackening agent with wear resistance, high temperature resistance and stable emissivity and its preparation method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Black-increasing agent for high-temperature infrared-radiation energy-saving coating and preparation method of black-increasing agent
  • Black-increasing agent for high-temperature infrared-radiation energy-saving coating and preparation method of black-increasing agent
  • Black-increasing agent for high-temperature infrared-radiation energy-saving coating and preparation method of black-increasing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A blackening agent for high-temperature infrared radiation energy-saving coatings, which is prepared from the following raw materials in weight percentage:

[0029] MnO 2 : 20%, Fe 2 o 3 : 20%, CuO: 10%, Co 2 o 3 : 1%, Cr 2 o 3 : 10%,

[0030] NiO: 10%, black corundum powder: 29%.

[0031] According to needs, corundum powder can be at least one of black corundum, brown corundum and white corundum

[0032] The preparation method of above-mentioned blackening agent, its step is:

[0033] Step 1, the MnO 2 , Fe 2 o 3 , CuO, Co 2 o 3 、Cr 2 o 3 , NiO and corundum powder are mixed evenly with a mixer in proportion, and then the mixture is pressed into a block.

[0034] Step 2, sintering the block mixture above at high temperature, that is, sintering at 1350° C. for 3 hours, performing doping and solid solution reaction to form a blackening agent with a spinel structure.

[0035] Step 3, cooling the sintered block mixture, crushing and grinding it to a size be...

Embodiment 2

[0037] A blackening agent for high-temperature infrared radiation energy-saving coatings, which is prepared from the following raw materials in weight percentage:

[0038] MnO 2 : 42%, Fe 2 o 3 : 15%, CuO: 8%, Co 2 o 3 : 5%, NiO: 10%,

[0039] Total of brown and white corundum: 20%.

[0040] The preparation method of above-mentioned blackening agent, its step is:

[0041] Step 1, the MnO 2 , Fe 2 o 3 , CuO, Co 2 o3 、Cr 2 o 3 , NiO and corundum powder are mixed evenly with a mixer in proportion, and then the mixture is pressed into a block.

[0042] Step 2: Sinter the block mixture above at high temperature, that is, sinter at 1350° C. for 2 hours, perform doping and solid solution reaction to form a blackening agent with a spinel structure.

[0043] Step 3, cooling the sintered block mixture, crushing and grinding it to a size below 280 mesh, and obtaining a blackening agent for high-temperature infrared radiation energy-saving coatings. The blackening agent make...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
flame retardantaaaaaaaaaa
emissivityaaaaaaaaaa
emissivityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a black-increasing agent for a high-temperature infrared-radiation energy-saving coating. The black-increasing agent is prepared by the following raw materials in percentage by weight: 20-60% of MnO2, 10-20% of Fe2O3, 1-5% of Co2O3, 5-10% of CuO, 0-10% of Cr2O3, 0-10% of NiO, and 20-40% of emery powder. The invention also discloses a preparation method of the black-increasing agent for a high-temperature infrared-radiation energy-saving coating. The black-increasing agent provided by the invention has the advantages of wear resistance, high temperature resistance and stable radiance, and is mainly used for fireproof base materials such as alumina bricks and mullite and metal base materials for boiler water wall tubes. The prepared coating has high infrared emitting ability at the temperature below 1300 DEG C within a broadband of 2.5-16.7 mum, with the average value being 0.88-0.92. The service temperature reaches up to 1450 DEG C, the black-increasing agent is stable at high temperature, the service life is not less than three years, the process is simple, and the cost is low.

Description

technical field [0001] The invention relates to the technical fields of chemical industry and coatings, in particular to a blackening agent with high infrared emission rate for high-temperature coatings and a preparation method thereof. Background technique [0002] As we all know, heat transfer takes place in three ways: conduction, convection and radiation. Radiation heat transfer plays a very important role in the high temperature stage (above 800°C), accounting for more than 80% of the total energy of heat transfer. High-temperature infrared energy-saving coatings can save energy by increasing the surface emissivity of the furnace lining, increasing radiation heat transfer, and reducing heat loss without changing the structure of the industrial heating furnace. The decisive role in high-temperature infrared energy-saving coatings is the metal oxide with high emissivity in the infrared band, that is, the blackening agent. [0003] When the furnace lining is coated with ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C09D7/12
CPCY02P20/10
Inventor 王刚赵立英
Owner KING STRONG MATERIAL ENG LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap