How to design ceramic wear-resistant elbows

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1.1.1 The ceramic tiles used as the lining for wear-resistant components feature an interlocking ceramic structure; that is, they are ceramic patches designed to prevent detachment through a male-female groove system. The ceramic tiles are fitted together in a 360° mechanical self-supporting structure via a unique male-female groove design along the circumferential direction, ensuring face-to-face contact between various sections of the elbow component. There is no direct contact between the individual ceramic tiles – instead, they press tightly against the inner wall of the wear-resistant component. The ceramic tiles are connected in sequence to form a single unit, and the edges of their contact surfaces are designed to be conical, thereby preventing the tiles from coming loose. 1.1.2 The surface of the ceramic lining tiles should be flat and smooth, with a surface finish of 1.0; this ensures low conveying resistance, allowing materials to pass through freely without sticking or blocking. 1.1.3 After the ceramic lining is installed, the unevenness of its inner surface shall not exceed ±0.2mm. 1.1.4 Ensure that the ceramic tiles attached to the inner wall of the ceramic tube are arranged closely together, with gaps between the tiles being ≤0.2 mm. During assembly, an adhesive should be applied between the tiles as well as between the ceramics and the inner wall of the tube, in order to ensure a tight bond between the ceramic layer and the inner wall of the tube. The resulting wear-resistant ceramic layer is resistant to impacts and wear. 1.1.5 The production of wear-resistant ceramics requires high-quality alpha alumina powder as the raw material – powder that is highly pure, ultra-fine, has a narrow distribution of particle sizes, and has been processed through spray drying and granulation. These powders are then used to press into green bodies with a high density and a uniform density distribution. The resulting sintered alumina ceramics should possess strong wear resistance, as well as good heat and corrosion resistance. 1.1.6 The wear-resistant ceramic tiles must meet the following parameter requirements: https://pics1.baidu.com/feed/4034970a304e251fbdf227af6b1504117e3e53fe.jpeg?token=786974b4e0d03a03e2725dbf73f66850 1.1.7 The ceramic lining of the anti-wear components and the metal material of their outer shells are aluminum oxide ceramic and Q345 respectively; the specific thicknesses are listed in the supply sheet. 1.1.8 The wear-resistant elbows used in anti-wear components must be manufactured in strict accordance with the technical requirements specified in the supply list, and no ceramic material shall be applied within a 200 mm area at both the inlet and outlet ends of these elbows. https://pics7.baidu.com/feed/3812b31bb051f819d8b62329112787eb2f73e758.jpeg?token=4c72e8dd3b6876710e7e8e0309d73f06 Ceramic wear-resistant elbow