Crack filling method of compound bent pipe and abrasion-resistant compound bent pipe
A composite elbow and gap filling technology, which is applied in the direction of pipes/pipe joints/fittings, elbows, pipe components, etc., can solve problems such as waste, composite elbow rupture, and unusability, and achieve unbreakable and reliable quality Effect
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[0016] The structure of the wear-resistant composite elbow of the present invention is as follows: figure 1 shown. Shell 1 is an elbow-shaped low-carbon steel shell, lining 2 is an elbow-shaped high-chromium cast iron lining, flange outer ring 5 is a low-carbon steel flange outer ring, and flange inner ring 6 is a high-chromium cast iron flange. lock up. The outer shell 1 is sleeved with the inner liner 2, and an injection hole 3 is drilled in the middle of the inner bending of the outer shell 1. The flange outer ring 5 and the flange inner ring 6 are sleeved together, the outer ends are welded to form an integral flange, and the inner ends are matched with the outer shell 1 and the inner lining 2 respectively. After the flange is assembled from the two ends of the sleeved shell 1 and the inner liner 2, the shell 1 and the flange outer ring 5 are welded to form a weld bead 4, and the inner liner 2 and the flange inner ring 6 form an assembly gap 7. The gap formed after the ...
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