Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
SHIELDING GAS
The primary function of the shielding gas is to exclude the atmospheric air from the arc zone. However, the shielding gas has significant influence on the arc characteristics, mode of metal transfer, speed of welding, cleaning action and bead geometry. Pure argon is used only for welding of non ferrous metals. However, pure argon shielding on ferrous alloys causes an erratic arc and a tendency for undercut to occur. Hence, for welding of ferrous alloys, either CO2 or argon + CO2 gas mixture is used. Addition of 1 to 5 % O2 or 3 to 25 % CO2 produce a noticeable improvement in arc stability and freedom from undercut. Argon rich gas mixtures produce a finger shape penetration whereas CO2 shielding gas produces wider and deep penetration.
Define marginal revenue?
no passing rule definition
series shaft and parallel shaft
what are the complications of a binary vapour cycle?
Q. What is MAPP Gas Welding? Methyl acetylene-propadiene-petroleum (M inert than other gas mixtures, making it safer for use and store. MAPP can also be used at very h high-vol
state the purpose and function of work holder
Q. Positive Material Identification Testing? Any physical evaluation or a test of a material to confirm that the material which has been or will be placed into service is consi
Bucket conveyors are used to moves the granular powdered or liquid materials. The buckets may be mounted on a chain or a belt. The movement may be vertical or flat. The ver
SUBMERGED ARC WELDING-Set Up Submerged arc welding system consists of the following basic modules: 1. Welding head 2. Power source 3. Flux feeding and recovery units Schematic
how to fraw a parabolla in parallelogram
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd