A corrosion-inhibiting mixture of compounds has been developed for addition to the water used to rinse metal parts that have been cleaned with aqueous solutions in preparation for adhesive bonding of the metals to rubber and rubberlike materials. Prior to the development of this corrosion inhibitor, the parts (made, variously, of D6AC steel and 7075-T73 aluminum) were rinsed by deionized water,...

With great interest we read the recently published article by Bianchin et al. describing a case report of a child with Van Maldergem Syndrome causing severe craniofacial dysmor-phism and bilateral congenital conductive hearing loss due to microtia and external auditory canal atresia [1]. Auditory restoration with a conventional skin-drive bone-conduction device, attached to a steel spring headb...

Purpose: Steel-spring-floating slab tracks are widely used in subway lines. It is necessary to analyze and study the vibration damping transmission characteristics of steel-spring-floating track various frequency bands under action train loads. Method: A ordinary monolithic tunnel sites with similar line conditions on straight curved segments were selected. The signals rail, bed, walls collecte...

introduction: two of the main challenges in developing countries are food production and trying to get a high income for good nutrition and reduction of poverty. cereals and legumes are the most important crops in the rainfed areas of the country occupying the majority of dry land areas. irrigated production systems had a main role in food production in the past years; but unfortunately, in rec...

Boron steels are used in hot stamping process due to their good mechanical properties. During the stamping process, the dies are exposed to aggressive conditions including adhesive wear, abrasion, thermal stresses and fatigue. In the present work, QRO 90 and UNIMAX slid against 22MnB5 steel in four conditions: with and without hardening treatment and, with and without Al–10%Si coating, in order...

A multilevel microcontact printing (μCP) system that avoids the use of optical alignment and precision manipulation equipment is demonstrated. Most of the complexity is transferred to the poly(dimethylsiloxane) (PDMS) stamp itself by forming the features, a mechanical self-alignment mechanism, and an elastic membrane by wafer scale replica molding on a Si master. Flexible 50-μm-thick photoetche...

In order to clarify the effect of heat-treatment temperature on the reaction between solid steel and inclusions, in this study, the reaction between Fe-Mn-Si alloy and MnO-SiO2-FeO oxide during heat-treatment at 1373 K, 1473 K and 1573 K were investigated using diffusion couple method, respectively. The results indicate that the width of the particle-precipitated zone (PPZ) and the Mndepleted z...

G. Krolczyk, Opole University of Technology, Faculty of Production Engineering and Logistics, Opole, Poland; P. Nieslony, Opole University of Technology, Department of Manufacturing Engineering and Production Automation; S. Legutko, Poznan University of Technology, Institute of Mechanical Technology, Poznan, Poland; I. Samardzic, J.J. Strossmayer University of Osijek, Mechanical Engineering Fac...