Reducing the metal content of clamps for flanged joints

Abstract

This article describes a low-waste technology of producing clamps intended for joining the flanges of chemical apparatus. The clamps are quick-release fastening elements consisting of two welded beams held together by a bolt and nut. The new design of the clamp is distinguished by the fact that the beams are all-pressed, and each is a single component. The shape of the new beam makes it possible to cut up the rolled sheet with little scrap, and with the use of special press tools, the utilization coefficient of metal increases to 0.89. The new clamp requires 25-27% less metal with the same load capacity as before. In addition to lowering metal consumption, the introduction of the clamps also saves labor, electric power, and welding materials, and less technological equipment and tooling is required. Includes a table and 4 drawings.