Design and Analysis of Ultrasonic Polypropene Corrugated Box Welding Machine

A wide style of ultrasonic corrugated plastic box welding machine options are available to you. Ultrasonic Polypropene corrugated box welders as a special purpose machine for variable sizes of Polypropene boxes that is a no bench type-welding machine to weld pp boxes is made with innovative technology at its perfection. “SANITEK PLASTOWELD SOLUTION” are a reliable manufacturer, trader, importer and exporter of the industry and established within the year 2010. They are the favoured name within the market place for providing very best quality assortment of plastic welding machine box, ultrasonic handgun, ultrasonic tube sealing machines and plenty of more products are designed and made by them. Ultrasonic welding provides good welding aesthetics. Manufacturing of ultrasonic Polypropene box welding machine is obtainable by “SANITEK PLASTOWELD SOLUTION”. No scratch guarantee for packed items. Polypropene corrugated boxes are nowadays used more as compare to the normal corrugated boxes, which were stapled and now corrugated box are joint by using ultrasonic welding. There is less rejection of packing items. A large form of ultrasonic Polypropene corrugated box welding machine options are available to you. No corrosion of joints means healthy packaging. This machine can weld one or more welding spot together which make it production friendly. With vision to sale its products in larger base company has laid emphasis on research. These are specifically designed to confirm easy handling reliable welding results, reproducibility while advancing, and optimizing the machine.

Comparison between traditional and alternative biocompatible welding techniques used in orthodontic devices

Objective: To compare the mechanical strength of joints made by conventional soldering with those made by alternative, more biocompatible, methods (spot, tungsten inert gas [TIG] and laser welding), and to compare the microstructural morphology of wires welded with these techniques. Design: In vitro, laboratory study. Methods: Forty stainless-steel wire segments with 0.8-mm diameter were joined by silver soldering, spot, laser and TIG welding. Ten specimens were produced for each one. Tensile strength test was performed 24 h after welding on the Emic DL2000™ universal testing machine, using a load cell of 1000 N with a crosshead speed of 10 mm/min. Results: The highest tensile strength mean values were obtained with silver soldering (532 N), next were laser (420 N), spot (301 N) and TIG (296 N) welding. Statistically significant differences were observed between the groups; the Dunn post-hoc test revealed differences between laser and spot welding ( p=0.046), laser and TIG ( p = 0.016), spot and silver ( p <0.001), and silver and TIG ( p <0.001). Conclusion: Laser welding strength is high, and comparable to silver welding. Spot and TIG techniques present comparable and significantly lower strengths. The four methods presented resistance values compatible with orthodontic use. The microstructural morphology is different for each technique. The association between the mechanical performance and the microstructure evaluation shows that laser presented the highest quality joint.

Analysis of the Behavior of Dynamic Resistance, Electrical Energy and Force between the Electrodes in Resistance Spot Welding Using Additive Manufacturing

This work is aimed at the analysis of the dynamic resistance, electrical energy and behavior of the force between electrodes (including thermal expansion) during welding at optimized parameters, referring to the process of spot welding using additive manufacturing (AMSW). For comparative purposes, this analysis also includes the conventional resistance spot welding process (RSW). The experiments were done on low carbon-zinc-coated sheets used in the automotive industry. The results regarding the welding process using additive manufacturing (AMSW), in comparison to the conventional resistance spot welding (RSW), showed that the dynamic resistance presented a different behavior due to the collapse of the deposition at the beginning of the welding, and that a smaller magnitude of electrical energy (approximately <3.35 times) is required to produce a welding spot approved in accordance with the norm. No force of thermal expansion was observed during the passage of the current, in contrast, there was a decrease in the force between the electrodes due to the collapse of the deposition at the beginning of the welding.

The Researching of Dynamic Electricity Distribution Along with the Renovation of Automobile Details by the Contact Covering Welding

The goal of completed research is determination of common factors of dynamic electricity distribution in the area of simple welding spot forming due to contact welding-on compact and powdered materials. Due to contact welding-on of compact (rod, belt) and powdered materials there is the dissimilarity of an electric field, which determines the unequal distribution of temperature field in the area of the moulded core creating and influence on the welded on covering quality. By the contact welding-on of compact materials, there is an occurrence of central core zone unheating, which is coming as a result of geometrical, temperature and magnetic-electric factors. During contact welding of metal powders, considering high speed of heating and a small-time of dynamic electricity passage through powder, it is possible to make a conclusion, that the stability of heat generation in a powder surface will be determined by starting electricity resistance value. High-quality plating can be reached if the powder charge will have low and stable electricity resistance in a cross-section and good compactness under the condition of low compress pressure, which is used for welding. (40 ... 70 MPa). Electrical field dissimilarity with contact welding-on powdered materials leads to unequal heating of powdered materials and covering defects, which is taking place due to the features of powder compression. As a result of current lines concoction in the central area is observed at a local temperature increase. Besides, interstices are dielectrical phase and increase electrical resistance in the peripheral areas. To increase the quality of coverings, got by contact welding-on is able due to providing high-quality powder material compression on the whole covering cut.

Evaluation of the Mechanical Parameters of Ultrasonically Welded Textile Composite Structures for Protective Footwear

Textile materials are used in protective footwear due to their good mechanical and hygienic properties and to provide thermal insulation. This work presents a technological process of designing ultrasonically welded composite structures characterised by various densities of welding spots. The study involved three variants of composite structures made of three layers. The composite structures developed were tested in terms of mechanical properties and were statistically analysed in terms of the effects of welding spot density and reinforcing nonwoven thickness on the protective parameters. Inserts made of ultrasonically spot-welded textile composite structures may offer protective footwear users greater comfort in terms of mechanical resistance. The evaluation method proposed may be a useful tool in assessing textile composite structure inserts for protective footwear.