Introduction to Corundum Ceramic Wear-Resistant Elbows
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Ceramic wear-resistant elbows are generally divided into two types: one is the self-igniting ceramic elbow produced using high-temperature self-igniting centrifugal composite technology, and the other is the ceramic patch wear-resistant elbow. I. Self-igniting ceramic composite pipes are relatively common; such pipes consist of three layers from the inside out: corundum ceramic, a transition layer, and steel. The ceramic layer inside can form dense corundum ceramics at temperatures above 2,200 degrees, and it can also form a strong bond with the steel pipe through the transition layer ； There are many small-diameter types, which are widely used in pneumatic ash transport, dust removal, wear-resistant elbows, and wear-resistant pipes in power plants. https://pics2.baidu.com/feed/77094b36acaf2eddd095f5c0e39a0cee380193c0.jpeg?token=f459a0f06d9d109e9cdf7b8767f20c6e Wear-resistant ceramic elbows https://pics6.baidu.com/feed/caef76094b36acaffeec8f7f1153801700e99cb2.jpeg?token=babb8b3354207917f02b29753d79289a Dust removal wear-resistant elbows. II. Ceramic-coated composite pipes: As one type of ceramic composite pipe, they not only take advantage of the high strength, good toughness, impact resistance, and excellent weldability of steel pipes, but also benefit from the high hardness, wear resistance, corrosion resistance, and heat resistance of corundum ceramics. They can even overcome the shortcomings of steel pipes such as low hardness, poor toughness, and weak wear resistance ； With a hardness of over 85, the thickness of the corundum ceramic can be chosen according to actual conditions, facilitating its use. It is widely used in coal powder conveyance pipelines in power plants, wear-resistant pipelines in coal washing plants, and dust removal wear-resistant pipelines in cement plants and steel mills. https://pics0.baidu.com/feed/b999a9014c086e06d960e8056e8276f308d1cbc2.jpeg?token=9ebf47341effad1d8b926f5f7dd39a56 Wear-resistant pipes for coal washing plants https://pics4.baidu.com/feed/d8f9d72a6059252dc975edb556110e3c5ab5b9b6.jpeg?token=883c831bf2165598a6fb32b796ac6ada Wear-resistant elbows for dust removal in steel mills
Ceramic elbows are manufactured using the self-propagating high-temperature centrifugal synthesis method: first, the various segments of the elbow are prefabricated, and then ceramic material is poured into each segment to carry out ceramic molding; once this process is completed, the elbow is considered a qualified product. Combined elbows are considered defective products when the method of prefabricating straight pipes first and then cutting them is used.