Solvus Line: Shows how much of one material is soluble in another at a certain temperature. Liquidus Line: Between fully liquid state and beginning of solidification. Solidus Line: Determines the end of solidification. Pasty Region: Part Solid, Part liquid. Solid Solution Alloy: Occurs when two metals are completely soluble in each other. Eutectic Alloy: Occurs when… Continue Reading →
Submerged Arc Welding Uses bare wire electrode. Fed automatically from spool. Generates electric arc to heat metal/ Flux in powder form. Fed using a hopper. Electric arc melts joint, flux and electrode. Excess flux is collected and re-used. Fully automated process. Used on Low carbon steels. E.g. Ship building and… Continue Reading →
Oxy-Acetylene is a Fusion welding process. The joint edges are heated until the metals melt. The molten metals join and fuse. Oxidation is prevented by the envelope of products of combustion. 1. Acetylene Acetylene would explode if directly compressed. Instead cylinders are filled with porous acetone which can absorb 25times… Continue Reading →
1. Circuit Step-down Transformer Converts high voltage AC to a lower voltage (220V to 80V-100V). This means the output current is greater than the input current. This is due to the primary coil having more windings than the secondary coil. Smoothing Capacitor Produces a more uniform direct current by smoothing… Continue Reading →
