Abstract A multi-layer welded bellows made of 00Cr17Ni14Mo2 was found to have leakage points in the heat-affected zone weld during airtight inspection and leak detection by helium mass spectrometry. In view multilayer bellows, reasons for areanalyzed means macroscopic observation, electron microscope energy spectrum analysis, metallographic examination, microhardness test chemical composition a...

Abstract In general use of an automatic sphygmomanometer is essential to generate small and stable pressure during the rapid expansion bladder cuff. The generated by simulator should simulate human blood such as simulation for infant, neonatal adult or conditions normal, hypertension, hypotension. system consists three combinations generation, a dc motor rough air cylinder maintaining stabiliza...

The paper presents a new parallel micromanipulator that is composed of three piezohydraulic actuation systems. The basic elements of the actuation system are a piezoelectric actuator, a bellows and hydraulic oil. The use of the flexible bellows results in a new type of parallel structure, where the joints are integrated into actuator links. The joint-free tripod-like micromanipulator is control...

Abstract A novel buckling-induced forming method is proposed to produce metal bellows. The tube billet firstly treated by local heating and cooling, the axial loading applied on both ends of tube, then buckling occurs at designated position forms a convolution. In this paper, apparatus designed developed discontinuous continuous bellows 304 stainless steel, their characteristics are discussed r...

Abstract In this paper, experimental and numerical investigations on cord–elastomer composites are presented. A finite-element model is introduced, which was developed within the framework of an industrial project. The able to simulate elastomer matrix with inserted cords as load bearing elements predict strains stresses in cord sections. inelastic material behavior yarns described by correspon...