Electrodes- stainless steel electrodes, Mechanical Engineering

Assignment Help:

Stainless Steel Electrodes

A variety of stainless steel electrodes are now being manufactured to produce weld metal similar to composition of most base metals. However, the analysis of the core wire may differ from that of the base metal in order to improve corrosion resistance of the weld deposit, eliminate under bead cracking and minimize carbide precipitation. In the transfer of metal through the arc very little nickel is lost from nickel bearing stainless steel electrodes. There is a slight loss of chromium and a greater loss of some of the other elements but this loss may be compensated by alloy additions to the coverings.

Manganese and silicon are included in the stainless steel electrode coverings to reduce oxidation. Titanium is added to promote weldability, to produce an easily removable slag and to prevent carbide precipitation. In most designs, columbium is used to prevent carbide precipitation. Lime has been an extremely important ingredient in the covering since it tends to eliminate hydrogen, the formation of which (as stated earlier in regard to low hydrogen electrode coverings) leads to under bead cracking.

Any material that is high in carbon is excluded because of the affinity of chromium for carbon especially at welding temperatures. The low hydrogen type covering used on stainless steel electrodes is similar to that employed on the low hydrogen type carbon steel welding electrodes.


Related Discussions:- Electrodes- stainless steel electrodes

Aerospace engineering, Have you ever been sit on a flight? Have you ever th...

Have you ever been sit on a flight? Have you ever think how those gigantic machines are developed ? Aerospace engineering is just the place where you require to be. Aerospace engin

Need Assignment, Ac circuit having rl rc rlc. Series

Ac circuit having rl rc rlc. Series

Design for a water treatment plant, Design for a water treatment plant: ...

Design for a water treatment plant: Produce as individuals a single tab Excel spreadsheet which shows a rough initial design for a water treatment plant taking 15

Thermodynamics: Apple Hydrocooling Unit, Design a hydrocooling unit that ca...

Design a hydrocooling unit that can cool fruits and vegetables from 30 to 5 degrees Celsius at a rate of 20,000 kg/hr under the following conditions: The unit will be of flood typ

Pendulum pump mechanism, describe about pendulum pump mechanism and dia...

describe about pendulum pump mechanism and diagram

What is the drilling operation, What is the Drilling operation Drilling...

What is the Drilling operation Drilling operation can only performed in vertical direction. Hence drilling hole at angle is not performed by drilling machine. It is a big drawb

Machine manufacturing technologies, Write an Machining route line and opera...

Write an Machining route line and operating line of a technological procession #Minimum 100 words accepted#

What is blow molding, Q. What is Blow molding ? Blow molding has been u...

Q. What is Blow molding ? Blow molding has been used for making plastic bottles, toys, doll bodies and many other items. The blow molding commences with the extrusion of the t

Induction heating, Induction Heating: Alternating current throughout i...

Induction Heating: Alternating current throughout induction coil adjacent the part to be treated induces eddy current via the part that is so heated. The benefit of such heati

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd