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FLUX FEEDING & RECOVERY SYSTEMThe flux is fed by gravity from the flux delivery hopper mounted on the welding head through a tube into the welding zone. Flux feeding is normally effected through gravity and in some cases by pneumatic feeding systems in automatic machines. The conveyor flux feed tube is also provided with a stop valve to control the flow of the flux. This tube is always kept ahead of the contact tube to ensure adequate supply of flux ahead of the arc.A pressurised system is used for the recovery of the flux. This system sucks the unmelted flux from the weld puddle for reuse. It is important that the flux recovery be carried out after the weld pool has completely solidified.
Q. Steam Hot Service Insluation Thicknesses? Steam Hot Service Insluation Thicknesses are specified based on the following design criteria: Average Annual Climatic Condi
(a) What is a coated tool? What are its advantages? What types of coatings are used in cutting tool. Discuss. (b) Discuss different types of cutting fluids, their properties and
Bolter: ( k E 2 - kE 1) = 0, ( pE 2 - pE 1) = 0, w 1-2 = 0 Now, q 1-2 = w 1-2 ( h 2 - h 1 ) + ( kE 2 - kE 1 ) + ( pE 2 - pE 1 ) q 1-2 =
T w o Stroke Engine In the two stroke engine, instead of valves ports are given, these are opened and closed by moving piston. Through inlet port, the mixture of air and fuel
Types of springs
Define the Disadvantages of Abrasive Jet Cutting Machines Slow material removal rate. Stray cutting and hence accuracy is not good. Abrasive powder cannot be reused
when 2 bodies are connected by a string show the direction of acceleration
Determine reactions of the overhanging beam: Determine r eactions at points A and B of the overhanging beam as shown in the figure given below.
TYPES OF WELDING
Vacuum Or Vacuum pressure (P vacc ) It is the pressure of a fluid that is always less as compared to the atmospheric pressure. Pressure (that is vacuum) in a steam condenser is
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