CONCLUSION TIG welding with mixture of SiO2 and TiO2 fluxes achieves increase in weld depth and decreasein weld width as well as angular distortion. The results indicate that TIG welds produced without flux the surface appearances clean andsmooth but with flux formed residual slag, spatters and small amount of fume is reported.Hardnessvalueoftheweldzonechangewiththedistancefromweldcentre dueto changeof microstructure. The G-PCA method is supplemented by the ANOVA which is revealed that current, speed andflux are controllable factors significantly the multiple quality characteristics withdesirecontribution of 47.81%, 13.09% and 20.61% respectively. The optimal combination of the process parameters was obtained from the proposedmethod was set with values of current, speed and flux 140 A, 100 mm/min and mixture of SiO2and TiO2 flux respectively. The corresponding responses are penetration depth, weldwidth and distortion of 3.64mm, 3.76mm, and 0.76
EXPERIMENTAL SETUP Experimental setup consists of stainless structure with motors to actuate the tool in lateral direction. The tool can be moved in x and y directions. The work piece having dimensions 40x10x1.5 mm is of soda lime glass. NaOH is used as electrolyte for the experimentation. Stirrer is used for the circulation of the electrolyte.
Microwave assisted transesteriﬁcation experiments were conducted in a modified Panasonic’s NN-ST 342M model microwave unit, working at fequency of 2.45 GHz and maximum power output 800 W. The system was equipped with a magnetic stirrer unit to allow continuous stirring. Conventional type reaction was performed in a 0.5 L stainless steel stirred reactor, supplied from the Karl Kurt Juchheim (Germany). 2.2 Catalyst Preparation and Characterization Seashells were soaked with 5% sodium hydroxide solution for 24 h, and rinsed several times with warm deionized water to remove impurities. Then, the
Abstract-A study of electrical properties of two dissimilar metals joint was analyzed by different welding conditions. The joining of copper to aluminum is inevitable for certain applications in the electrical industry due to good conductivity and response offered by copper and aluminum for weight reduction. While in the majority of cases, dissimilar metals can be joined by friction welding, friction stir welding, bolted joint, fusion welding, solid-phase welding etc. In this metal joining reduces the loss in the bolded joining which are corrosion, flickers, discharges etc. The electrical conductivity study also carried out in different metal welded joints.
Check its dimensions below to ensure enough space for mounting and working under the sink. You might even have to give up some storage space that you used to keep items under the sink. Width: 8 1/2 inches Height: 16 1/16 inches Shipping Weight: 15.91 Lbs. Product Features 1 HP permanent magnet motor - Unit runs at 2800 rpm to give you a fast and smooth grinding operation. Power cord is attached to unit - You can plug to a power outlet and use immediately.
The trials were carried out in Magod laser Pvt. The system involved of continuous-wave Co2 laser (make Trumpf TLC 1005) with the extreme output power of 4 KW. It has 5 axis motion systems with independent rotary axis. The diameter of laser beam was set to 3 mm and the base was positioned 8 mm from the co-axial nozzle. Nickel powder were fed through Co-axial feeder.
The procedure of carrying out the experiment was somewhat in the same lines as mentioned elsewhere . The equipment and apparatus consisted of a storage tank (S), centrifugal pump (P), two rotameters (R1and R2) and a nitrogen cylinder (N) along with regulator (R). A U-tube manometer (U) was provided to measure the pressure difference across the test section (B). Valves V1 to V8 were employed to regulate the flow rates of fluid. The storage tank was of 100 litres capacity.
Microcalorimetry experiment was performed on Setaram−C80 heat flow calorimeter coupled to a multiport high-vacuum homemade glass manifold. A specific amount of the sample (approx. 500 mg) was taken into a sample cell, reference cell was taken as empty and together they are connected with Pyrex tee. The sample was heated from room temperature to 200°C under vacuum and kept for 2 h, then 3-4 doses of helium gas were introduced into the system to remove any excess residue such as moisture or organic impurity from the system. The system was heated for 4-5 hr under vacuum at 200°C and then cooled down to the temperature (50°C) where we want to perform the adsorption study.
4.1 General Remarks: Most of the reactions were carried out in oven dried glass wares with magnetic stirrer and and reflux condenser using freshly solvents. Reactions are monitored on aluminium coated thin layer chromatography (TLC) with UV light and iodine as developing agents. Melting points were determined on melting point apparatus. Proton magnetic spectra were recorded on Brucker 400MHz spectrometers using tetramethylsilane (TMS) as internal standard. Chemical shifts has been expressed in δ values downfield from TMS, multiplicity of NMR signal is designated as s (singlet), d (doublet), t (triplet), q (quartet), m (multiplet).Infrared spectra were recorded on Agilent Technologies FT-IR spectrophotometer.