Ceramic patch pipes
Ceramic patch pipes are made by sticking alumina ceramic sheets on the inner wall of the pipe with high temperature resistant strong adhesive and form a firm anti-wear layer after being heated and solidified. The production process is simple and the cost is high. The operating temperature generally cannot exceed 100 degrees, which is not suitable for pipelines.
Spot welding clamped wear-resistant ceramic pipe
Spot welding clamp-type wear-resistant ceramic pipes are made by using high temperature resistant strong adhesive to paste alumina ceramic sheets with holes in the middle on the inner wall of the pipe, and at the same time, the ceramic is firmly welded to the inner wall of the steel pipe through the small holes with the spot welding process. In order to protect the solder joints, a ceramic cap is screwed on. Each piece of porcelain is not only pressed and inserted into each other, but each piece of porcelain forms a trapezoidal angle so that the tiles are tightly connected and there is no gap; when the last piece of a circle is tightly embedded, a 360° mechanical freedom is formed between the tiles. Locking force (this technique was used in Chinese bridge construction projects centuries ago). The production process of this kind of product is relatively complicated, the production cycle is long, and the cost is high.
One piece wear resistant ceramic pipe
One-piece wear-resistant ceramic pipes are also called ceramic-lined composite steel pipes. After the ceramic pipe fittings are fired as a whole, they are glued to the inner wall of the pipe with an adhesive. The pipeline has a smooth inner wall, good sealing performance, and good wear resistance and corrosion resistance.
Ceramic steel pipes are fundamentally different from traditional steel pipes, wear-resistant alloy cast steel pipes, cast stone pipes, steel plastic, and steel rubber pipes. The outer layer of ceramic steel pipe is steel pipe, and the inner layer is corundum. The Vickers hardness of the corundum layer is as high as 100-1500 (Rockwell hardness is 90-98), which is equivalent to tungsten-cobalt hard gold. The wear resistance is more than 20 times higher than that of carbon steel pipes. The wear resistance of ceramic steel pipes is mainly based on the inner layer of a few millimeters thick corundum layer. Its Mohs hardness is 9, second only to diamond and silicon carbide. Among all oxides, its hardness is the highest.
Ceramic wear-resistant steel pipe lined with high abrasion resistance and strong fluid erosion resistance. In the primary air duct, the elbow wears the fastest, and the wear resistance of the ceramic lining wear-resistant steel pipe elbow is more than 5 times higher than that of the thick-walled wear-resistant cast steel elbow.
Centrifugal casting composite ceramic pipe
The centrifugal casting composite ceramic pipe is a composite pipe manufactured by "self-spreading high-temperature synthesis-high-speed centrifugal technology", which forms a uniform, dense and smooth ceramic layer and transition layer at high temperature and high speed.
