Engineers design bionic ‘heart’ for testing prosthetic valves, other cardiac devices

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Generally speaking, the steel flanges refer to the joints specially used for connecting pipes. For example, two steel pipes with

Generally speaking, the steel flanges refer to the joints specially used for connecting pipes. For example, two steel pipes with a diameter of 100 can be connected by welding or electric welding. Once welded, it is not easy to disassemble unless it is cut by a cutter or Electric welding to cut open. However, if a flange (usually a round flange) is used, a gasket seal can be added and then fixed with a screw cap. It can also be easily disassembled when the pipeline fails or is overhauled. In addition, if there are flanges on both sides of the large gate valve switch, it is convenient to remove the switch. The Welding neck flanges is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the flange. A weld neck flange (also known as a high-hub flange and tapered hub flange) is a type of flange. There are two designs. The regular type is used with pipes. The long type is unsuitable for pipes and is used in process plant. A weld neck flange consists of a circular fitting with a protruding rim around the circumference. Generally machined from a forging, these flanges are typically butt w...