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Inorganic High Temperature Marking Coatings

A coating and high-temperature technology, which is applied in the field of inorganic high-temperature marking coatings, can solve the problems of poor primary adhesion, peeling off of spray printing paint, blurred spray printing, etc., and achieve fast curing speed, not easy to fall off, and good adhesion.

Active Publication Date: 2021-10-22
济南聚隆兴机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The primary adhesion of this coating is poor
[0003] Existing high-temperature marking paints generally have poor adhesion at high temperatures, are easy to fall off or become blurred, and the marks are easy to fall off during the curing process; and these paints are generally strongly acidic or alkaline, and are easy to corrode steel and pipelines of spraying equipment System, after long-term storage outdoors, the spray printing paint will fall off, and the high temperature spray printing will be blurred, resulting in untraceable and unidentifiable

Method used

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  • Inorganic High Temperature Marking Coatings
  • Inorganic High Temperature Marking Coatings
  • Inorganic High Temperature Marking Coatings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) 5kg nano silica is dispersed in a 20 kg ion water and heated to 95 ° C, and then 0.1 kg coupling agent is added and stirred, and the modified nano silica gel is obtained.

[0037] (2) A 3kg nano-mediated aluminum stone is dispersed in 24 kg of deionized water and heated to 70 ° C, gradually adding 0.1 kg of hydrochloric acid to obtain an acidic gel, and then gradually add 0.5 kg of ammonia to make pH 88 ~ 9, get alkaline stable gel;

[0038] (3) The modified nano-silica gel obtained by step (1) is uniformly mixed with the basic stabilized gel obtained by step (2), and 15 kg of deionized water is mixed, and then 15 kg of titanium powder, 8kg ultrafine hydrogen Aluminum oxide, 0.1 kg of dispersion aids are mixed into fineness to prepare inorganic high temperature labeling coatings.

Embodiment 2

[0040] (1) 8 kg of nano silica is dispersed in a water drop of 16 kg and heated to 80 ° C, and then 0.3 kg of silane coupling agent and stirring, the modified nano silica gel is obtained;

[0041] (2) 5kg nano-thin aluminum stone is dispersed in 60 kg of deionized water and heated to 50 ° C, gradually adding 0.1 kg of hydrochloric acid to obtain a pH of 4 to 5, to obtain an acidic gel; then gradually add 0.5 kg of ammonia water to 8 pH 8 ~ 9, get alkaline stable gel;

[0042] (3) The modified nano silica gel obtained by step (1) is uniformly mixed with the alkaline stabilized gel obtained by step (2), and then adding 60 kg of deionized water to mix 25 kg of titanium powder, 15kg ultrafine hydrogen. Alumina, 0.2 kg of dispersion aids mixed to fineness, resulting in inorganic high temperature labeling coating.

[0043] Example 1 The inorganic high-temperature labeling coating prepared by high temperature spraying steel substrate 1, visible photos figure 1 The inorganic high temperatu...

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Abstract

The invention discloses an inorganic high-temperature marking paint comprising the following raw materials in parts by weight: 15-25 parts of titanium dioxide, 8-15 parts of superfine aluminum hydroxide, 5-8 parts of nano silicon dioxide, and 3-5 parts of nano pseudo-boehmite. 0.1-0.3 parts of silane coupling agent, 0.1-0.2 parts of dispersing aid, 0.1 part of hydrochloric acid, and 0.5 parts of ammonia water. The invention also discloses a preparation method of the inorganic high-temperature marking coating: modifying nano silicon dioxide, then preparing an alkaline stable gel with nano pseudo-boehmite, mixing the two, adding deionized water and other raw materials , mixed and ground to obtain the coating of the present invention. The paint prepared by the method of the invention has good adhesion at high temperature, short curing time, is close to neutral, does not corrode steel substrates, and can also adapt to harsh outdoor weather.

Description

Technical field [0001] The present invention relates to the field of coating materials, and more particularly to inorganic high temperature labeling coatings. Background technique [0002] High temperature labels in steel production mainly act as traceability and identification, labeled information such as steel processing state. As the steel production rate is increased, the steel species is continuously expanded, the printing temperature of the steel substrate is also increased from the original average of 650 ° C to an average of 950 ° C, the original use of the print coating, encounter high temperature steel substrate (750 ° C or more) It is extremely poor printing effect when the printing blur is not adhered, causing high temperature, and affects logistics. In addition, the steel substrate is in the outdoor library, and the print coating is easily detached under the conditions of the storm sun. In production practice, there is a need to adapt to various steels, and high temp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/00B05D1/02B05D7/14B05D7/24
CPCB05D1/02B05D7/14B05D7/24C09D1/00C09D5/18
Inventor 王新荣
Owner 济南聚隆兴机电科技有限公司