Alumina Ceramic Lined Components

Alumina Ceramic Lined Components are essential for industrial applications where high levels of wear, abrasion, and corrosion are present. These components are lined with alumina ceramic, which offers outstanding hardness and wear resistance. Widely used in industries such as mining, cement, power generation, steel, and chemical processing, alumina ceramic-lined components ensure a longer service life and reduced maintenance costs, even in the harshest working conditions.

Alumina ceramic lined components coated with alumina ceramics are characterized by high abrasion resistance even in combination with high operating temperature. So we use Alumina ceramic lined components when we have to convey very hot materials that give rise to significant wear.

Among other qualities of the alumina ceramic, we can also mention the remarkable regularity of its mechanical characteristics along the section, the high geometric regularity and the possibility to obtain very smooth surfaces.

The necessary raw materials and processes for production of alumina and manufacture of the component, which require expertise and a appropriate hardware, make these products more expensive than the equivalent with basalt coatings, compared with a duration far greater even thanks to an increased regularity of wear of the surface during operation.

Features

1. Longer life time, reduce maintenance costs
2. Higher cost performance
3. Reduce pollution to raw materials
4. Easy to disassemble and maintain

Benefits

• The coal will bring great impact to the equipment during transportation in the coal handing system of power station, so the alumina ceramic tiles s not available and they will fall of by large area.
• The valve in the desulfurization system can change the follow during the switching process, sot he slurry with grain at high speed will wear out the pipe at the ends of valves. The liquid in the tube contains much sulfite which is very corrosive, so usually nonmetallic pipes like rubber tubes and PVC pipes are used to avoid corrosion, but the wear resistance of these tubes are poor that the straight pipe at the ends of valves always worn out. The alumina ceramic lined tube/elbow is one piece, the slurry couldn’t permeate through it, moreover, the alumina tube/elbow has high hardness and the process by isostatic pressing dry power is favorable to the uniformity of ceramic crystal structure, so its wear resistance is better than ceramic tiles with the same materials.
• The weakest place is the gap between each sticked tiles during material handing. The material grains not only wear the pipe but also have impact on it. This is why the pipelines lined by tiles are easily worn out and fallen off.
• The experiment shows that the service life of ceramic tube/elbow is at least 5 times longer than ceramic tiles of the same thickness.

Their exceptional wear resistance, impact strength, and ability to withstand high temperatures make them ideal for improving the efficiency and longevity of industrial equipment, while reducing maintenance and downtime. These components are a cost-effective choice for industries requiring robust and reliable protection from harsh operational environments.

Process of ceramic sleeve lined pipe

For different production environments, our company has developed a wear-resistant pipe for a variety of media, based on the temperature, wear and corrosion requirements of the field media, and for the initial application of the scene, our company to provide wear-resistant ceramic ring for the Lined composite straight pipe design to meet the on-site wear resistance, heat resistance and corrosion resistance requirements, in view of this program for the new design (formerly ceramic chip technology, there are many gaps, easy to wear).

Paint process

After the ceramic ring in the pipe is installed and the thread is processed, the dirt outside the pipe is cleaned, and the outer surface of the pipe is treated with three layers of anticorrosive paint to meet the export requirements.

For the convenience of customers, are to provide a more specific process is as follows:

1. Removing rust and decontamination process of outer-layer steel pipe;
2. Must be in strict accordance with the prescribed ratio, the binder a\b accurate measurement, with how many, must be stirred evenly, full stir-mixing must not be less than 4 times, such as adding a mixture of the embedded feed should be mixed with the binder and then add the mixture to stir up not less than 3 times;
3. The binder is applied evenly on the inner wall of the steel tube to ensure the thickness is not less than 0.5mm thickness. Then apply the binder on the outer surface of the ceramic ring to ensure the thickness between the 0.5mm-1mm. Also in the ceramic ring side (with the ceramic ring contact with the corresponding surface) Daub 0.5mm Adhesive, to ensure that after the installation of the ring and the seal between the ring;
4. After the installation of the ceramic ring in place, it is necessary to repair the gap between the assembled ceramic rings and mend the joints to ensure the sealing between the ring and the ring;
5. According to the NPT standard, we process the two pipe ends of male and female thread processing. The end of the pipe processing, and processing 1x45° groove, to prevent on-site installation in the process of cutting the hands of construction workers, do a good job of safety protection measures, thread processing, need to brush oil to protect the thread;
6. After installing the ceramic ring, check the internal surface of the ceramic ring of the formation, finishing in place, cannot move the position of the pipe, because the binder is not dry, vibration is easily caused by the displacement of ceramic rings, affect the use of the effect of cold weather in winter, binder drying time is longer, need to ensure more than 48 hours.

Ceramic sleeve lined manufacture details

Technical index of binder

Item	Data	Characteristics of binder
Density (g/cm3)	1.32	We use the Australian Megapoxy high strength structural adhesive, this structural glue is modified epoxy resin polymer, anti-aging ability, and wear-resistant ceramic bonding to form a strong and cushion of the anti-wear layer, cured water, anti-corrosion performance is excellent, toughness, displacement-resistant effect is remarkable.
Compressive strength (MPa)	40
Shear Strength MPa	26
Impact toughness Kj/m2	10
Hardness HB	9.5
Elastic Modulus GPa	2.2
Expansion coefficient 10-6/℃	20.1
Softening temperature℃	263
Coking temperature℃	335
Acid resistance（24H）	Stability	Test solution : 15%H2SO4
Alkali resistance（24H）	Stability	Test solution: NaOH