objective(s) to determine the potential toxic effects of manual soldering flux cored solder wire on lung of the rat as an experimental model. materials and methods a total number of 48 adult male rats were divided into experimental (n= 30) and control (n= 18) groups. based on exposure time to solder fume, each group was further subdivided into 2, 4 and 6 week subgroups. rats of experimental gro...

The advent of ultrafast lasers has brought many new applications, in particular in biomedicines and material processing, such as laser tissue ablation (Huang and Guo, 2010; Jiao and Guo, 2011), laser tissue soldering and welding (Kim and Guo, 2004), protein shock (Sajjadi et al., 2013), thermal response (Jiao and Guo, 2009), and the detection of tumors by using an exogenous fl uorescence agent ...

The aim of this study was to evaluate the cytotoxicity induced by orthodontic bands through survival tests on Saccharomyces cerevisiae, a microorganism that presents several genetic and biochemical characteristics similar to human cells. Three groups of bands were evaluated: silver soldered (SSB), laser soldered (LSB), and bands without any solder (WSB). Yeast cells were directly exposed to the...

Resistance spot welding is used in the assembly of automobile bodies. The use high tensile strength steel plates bodies expanding, and there a need to develop process that improves joint per resistance weld point. To improve weld, can be combined with other joining methods, such as WeldBond method. As an additional method around nugget, than using adhesives method, brazing obtain strong without...

BACKGROUND AND AIMS In order to fabricate prostheses with high accuracy and durability, soldering techniques have been introduced to clinical dentistry. However, these prostheses always fail at their solder joints. The purpose of this study was to evaluate the effect of gap distance on the tensile strength of base metal solder joints. MATERIALS AND METHODS Based on ADA/ISO 9693 specifications...

Surface mount technology (SMT) is one of the most important developments in electronic industry. A surface mount assembly (SMA) has three consecutive manufacturing steps: solder paste stencil printing, component placement, and solder reflow. Stencil printing process (SPP) involves highly operation complexity and has multiple quality characteristics, and averagely accounts for 60% of soldering d...