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cellulosic electrodesin the aws e 6010 and e 6011 series of electrodes the protective covering is composed of cellulose c6h10o5 and silicate binders
types of coated electrodesfollowing are the types of coated electrodesa cellulosic electrodesb rutile electrodesc iron powder electrodesd low
functions of flux coatingthe coating of the electrode performs very important functions which are essential for obtaining a weld of required quality
development of coated electrodescan welding be done by bare wirewhy do we require coating at allwhat are the different types of coatingwhat are the
coated electrodes and their classificationswelding technology has changed tremendously over the past decades its application is found in all sectors
rotary convertershistorically these type of power sources were developed first for arc welding applications and even now these types are popular
rectifier type power sourcesthe next popular power sources are of rectifier type three phase transformer step down connected to a rectifier to give
transformer type power sourcesthese are the simplest and cheapest type available for arc welding these are the mainly used for smaw ac saw and
classification of arc welding power sourcesas we have know different welding processes require different operating conditions amp the power
power sources for arc weldingelectric arc welding processes constitute a majority of all the welding processes most of the weldable materials can be
arc blowin certain cases depending upon where the return path connections are given for the arc current the arc may be deflected towards a direction
the welding arcthe heat that is developed at the cathode and anode of an arc discharge is able to melt most of the metals and alloys hence the arc is
electric discharge phenomenonthe flow of electricity through metallic solids or through liquid metals is called conduction the electricity flow
a projectile is fired with a velocity u at the entrance a of a horizontal tunnel of length l and height h determine the minimum value of u and the
welding arc physicselectric arc as an intense source of heat is employed in welding of materials in the field of welding techniques arc welding
diffusion bondingin this process union between specially prepared mating surfaces takes place as a result of diffusion which occurs due to high
plasma weldingthis is an extension of tig welding in plasma welding torch plasma energy is constricated and ensures its most efficient utilisation
firecracker weldingthis is a semi automatic version of smaw a specially designed heavy - coated electrode which can be of any length upto 2 m is laid
arc spot weldingin this process coalescence at the overlapping surfaces is produced in one spot by heating with an electric arc between an electrode
thermit weldingthis process utilises the intense heat developed during the reaction between iron oxide and aluminium when a mixture of three parts of
atomic hydrogen weldingin this process an arc is struck between two tungsten electrodes using ac power supplythe streams of hydrogen gas are passed
stud weldingthis is an arc welding process in which the arc is struck between a metal stud or similar part and the base metal the arc heats the
capacitor discharge weldingthis is used for welding of studs welding of thermocouples etc on the base metal a low voltage high amperage electrical
electro slag welding this process is similar to the electro gas welding process designed for making butt welding in the vertical position in one
electro gas weldingthis process is an extension of mig i mag welding designed for single pass vertical welding of steel plates in the thickness