Zhuopu will briefly describe the "thermal spray glass (glaze) anti-corrosion technology" for pipelines

In response to the fatal weakness of aging and deterioration in organic anti-corrosion, Beijing Jintian Weiye Technology Development Co., Ltd. has conducted unique research on non aging and successfully developed thermal sprayed glass (glaze) anti-corrosion technology. It has obtained the invention rights in China (891078568), the United States (5130165), and five European Community countries (0427960A), and has been put into industrial production.

Improving pipeline anti-corrosion technology and extending pipeline service life is one of the global technical difficulties, which is a hot topic of widespread concern in scientific technology and engineering design, and has great technical and economic significance.

At present, the commonly used anti-corrosion materials for metal pipelines in countries around the world are organic polymer compounds, such as coal tar coatings, asphalt, epoxy coatings, 3-layer PE coatings, etc. Due to the problem of aging and deterioration, pipelines coated with traditional organic coatings have shortened their lifespan to varying degrees. The inherent deficiency of organic coatings often leads to catastrophic pipeline accidents (such as leaks, fires, explosions, and environmental pollution), which can be said to have endless consequences.

The invented steel pipe enamel coating technology is to form a glass metal composite anti-corrosion coating on the inner or outer wall surface of a metal pipeline. This coating is a material with excellent anti-corrosion performance in the world today, and can be used in various fields such as tap water, sewage, chemical industry, petroleum, natural gas, and municipal construction. It is a non aging anti-corrosion material. Glass glaze is formulated according to the requirements of anti-corrosion performance, metal expansion coefficient, and process characteristics, and does not contain any toxic or harmful substances.

The enamel coating on steel pipes has the following ten prominent characteristics:

1. New production process

Thermal sprayed glass (glaze) anti-corrosion pipeline, similar to enamel pipeline. But this is a production process without a kiln, which is a new inorganic anti-corrosion technology in China (because glass and enamel are the same material but different processes).

2 Non aging

Organic coatings are generally prone to aging, while inorganic glass glaze coatings do not age. Glass glaze and metal composite coatings do not deteriorate or age for hundreds of years, thus significantly improving the service life of pipelines.

3 Use

Glass (glaze) anti-corrosion pipes have a longer service life and very stable physical and chemical properties compared to organic coatings, making them suitable for various harsh conditions. Therefore, it meets the requirements of sustainable development strategies for materials, has significant social benefits, and a broad development prospect.

4. Excellent corrosion resistance performance

Glass (glaze) anti-corrosion pipes can withstand the erosion of various petroleum, chemical, organic solvents, and sewage, with excellent anti-corrosion performance.

5. Good internal drag reduction, wear resistance, and fluidity

The inner wall of the pipeline is smooth, has high hardness, low flow resistance, and has strong wear resistance and good medium fluidity. Therefore, glass glaze is an ideal pipeline wear-resistant coating material for solid transportation.

6. Strong weather resistance

Glass (glaze) anti-corrosion pipes are resistant to high temperature, severe cold, oxidation, and UV radiation, with outstanding functions. The coating remains unchanged when used for a long time in the temperature range of -50 ° C to 300 ° C, which is beyond the reach of any organic anti-corrosion coating.

7. Non toxic and harmless

Due to the fact that the main component of glass glaze is silicate, it is non-toxic, harmless, and free from any pollution during production and use; The coating will not affect the quality of the conveying medium.

8. Low cost

The price of glass (glaze) anti-corrosion pipes generally does not exceed the cost of anti-corrosion pipes made of imported epoxy powder. The use of glass glaze anti-corrosion pipes can replace stainless steel pipes, and the cost is only about a quarter of stainless steel.

9 Standardized construction

The installation method of glass (glaze) anti-corrosion pipelines is basically the same as other anti-corrosion pipelines, but due to the special treatment of the inner walls at both ends of the pipeline during the production of glass (glaze) pipelines, there is no need for special inner joint repair during welding; Stainless steel joints are simpler and more applicable, and can be used for standardized matching construction.

Widely used

Glass (glazed) pipes can be widely used in petroleum, natural gas, chemical, water supply, sewage, power, coal water slurry and many other industries due to a series of corrosion resistance, aging resistance, wide temperature range, smooth surface, high hardness, wear resistance and other characteristics.

Research by manufacturers on the transportation of natural gas through carbon steel pipes has shown that using glass glaze coating protection can also solve the problem of natural gas damage to pipelines (this coating is not aging, not only anti-corrosion but also hydrogen cracking resistant). Because hydrogen atoms cannot come into contact with the surface of steel, they see this breakthrough development as a pipeline hope project spanning the century.