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This post was last edited by Lan Tian on 2017-9-13 12:30 Advantages of ceramic patch wear-resistant elbows 1. Anti-falling design 1. Ceramic pieces. The structure of the wear-resistant ceramic tiles is "pressure on three sides, counter-pressure on three sides, and positive and negative arcs." The ceramic tiles are inlaid and connected with each other, and have overall and partial anti-falling properties. 2． media layer. A high-temperature resistant, high-strength, low-expansion coefficient inorganic adhesive compound is used between the ceramic tiles and the steel body as the bonding media layer between the steel body and the ceramic tiles. It can still maintain good bonding performance without delamination during long-term operation in high-temperature dry powder pipelines. 3． Welding fixation process. Craft one: The ceramic piece with the buckle-containing tapered hole is directly welded to the steel body with a heat-resistant steel bowl, and then the buckle ceramic plug is coated with glue and sealed on the tapered hole of the ceramic piece. The overall appearance is all ceramic surface. Craft two: The energy storage welding process is used to weld the ceramic piece with a tapered hole to the steel body through special wear-resistant bolts. two. structure form structure one: (Carbon steel) + inorganic adhesive + ceramic patch + welded steel bowl + buckle porcelain plug (Figure 1). Structure 2: (Carbon steel) + inorganic adhesive + ceramic patch + welding bolt + conical nut (Figure 2). three. Technical performance 1. Basic characteristics of wear-resistant ceramic sheets (type 95 alumina wear-resistant ceramics): High density, high hardness, high wear resistance, performance second only to diamond. Technical parameters: Sintered at high temperature of 1760℃ ； * * The authoritative testing department detected the AL2O3 content as 95.02% ； Rockwell hardness ≥85 (HRA) ； Tensile strength ≥550Mpa ； Density ≥3.8g/cm ； Flexural strength ≥370Mpa ； High temperature resistance: 1760℃. 2． Basic characteristics of the combined media layer (type IV inorganic adhesive): High adhesion, high waterproof, high temperature resistance, developed based on domestic high-tech research results. Technical parameters: * * The authoritative testing department detects that the tensile strength of the adhesive surface is ≥24.2Mpa ； Tensile strength at 260℃≥18Mpa ； Adhesive bonding surface shear strength ≥7.08Mpa ； Temperature resistant: -35～1250℃. 3． Basic features of welded steel bowls and bolts (weldable wear-resistant and heat-resistant steel): Anti-wear, high welding strength, high temperature resistance, good thermal stability. Technical parameters: Welding surface tensile strength ≥199Mpa ； Welding surface shear strength ≥32.2Mpa ； High temperature resistance: 1450℃.