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depending on: the type of electrode, and gap between material, and material thickness, and whether or not the groove is beveled... roughly 1 electrode per 8 inches for a cover pass, and 1 electrode per 16 inches for a root pass
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Inch dia calculation factors?
Inch dia = Number of weld joints X Size of the pipe
How to reduce the diameter of pipe from 12 inch to 10 inch?
With large diameters like that you will most probably need to insert a weld-on 12 inch - 10 inch reducer at the point where the reduction is required. The pipe and reducer perimeter edges should be bevelled, say 45 degrees, for good weld penetration especially if the pipe conveys fluid under pressure.
What is a closure?
A closure weld is a technique of sealing an object in which powerful electrical current or heat is used to melt the surfaces together. This is used extensively in industrial applications.
What part of a filet weld that can be convex or concave?
The 'face' of the weld may be slightly convex, flat, or slightly concave.
What is the average manhour of pipe weld per inch dia?
There is no answer. There are to many factors to generate an accurate response. When estimating, your best bet is to refer to similar jobs that your company and employees have completed. Those production rates will be the most accurate. When quantifying weld per inch Dia. Given varying degrees of environmental restrictions, wall thickness, procedure, pipe type and size, the hang over that your crew has from the night before and the rest of the equation it is difficult to determine what production rates will be. My recommendation is to use previous proven production rates and work on improving the management coordination, material and equipment supply and communication to the crew. if focus is given in these areas a substantial increase in previously realized production rates will be seen.
What is the role of silicon in welding electrodes?
Silicon is used to lower the viscosity of the weld puddle. This allows better flow of the molten weld puddle.
If electrode use in welding has moisture what effect will it have on the weld?
Electrodes with too much moisture may lead to cracking or porosity.
What is the main difference between filler rods and electrodes?
Filler rods are used to add metal to a molten weld pool during the welding process and electrodes actually have electricity running through them to deposit metal into the weld with the exception of TIG welding where the tungsten electrode is used solely for heat.... Hope this was helpful
Can you weld aluminum and corten steel together?
The only time I welded corten I used 7018 electrodes. I was told that elements in the corten mixed with the electrode in the weld giving it rust resistant capabilities.
How many weld in 2 inch can a welder do?
3 bead cap
Which metal are used for wielding electrode?
filler rod Almost all metals produced can be welded. Electrodes/rods of similar or compatible metals are manufactured to weld these metals.
What electrodes would you select to produce a weld with shallow penetration E6010 or E6011 or E6013 or E7018?
E6013
Which electrode is used to weld stainless steel to carbon steel?
It depends on the type of stainless steel. Stainless steels come in various compositions and are identified by numbers and letters. Electrodes should be chosen that match these. For example when welding 316 stainless use type 316 electrodes. In a lot of situations you can safely use the next higher number. 304 stainless can be welded with 308 electrodes, 308 stainless with 310 electrodes. 309 electrodes are generally used to weld stainless to carbon steel.
6 inch weldolet welded to 12 inch pipe what is the inch dia involved?
The meaning of dia inch is the number of weld joints multiplied by the dia of a given pipe size, since the weld joints is on the 6" pipe, the calculations should be 1 weld x 6" = 6 dia inch.
What type of electrodes are used in MMA arc welding?
A huge variety of electrodes are available. MMA, SMAW, STICK WELDING are all the same process. Electrodes are produced to weld almost all metal and metal alloys. From steel to cast iron to aluminum to stainless steel to monels to ???? If it can be STICK WELDED an Electrode is made to do the job.
What weld type process uses no consumables?
Not having used a laser to weld , this may be the only one that comes to mind. Oxy -acetylene uses up gas , even though no filler rod may be used, MIG welding uses wire , most other types of welding use some sort of cosumable whether it be rods or coated electrodes , something in the processes gets used to fill the weld or to shield it from contamination. I cannot be sure if some part of a laser is used up in order to make the weld.
Is there types of electrodes in Shielded Metal Arc Welding?
Probably more than there are types of metal. There are many electrodes manufactured just for welding steel and for welding ON steel. Some electrodes are made to weld steel and other metals (multi-purpose). Some electrodes are designed to protect steel from chemicals and corrosive elements and are used to CLAD or OVERLAY or BUTTER. Steel, stainless steel and some other metals are manufactured with different alloys and electrodes are made to match these. Some electrodes are made to join dissimilar metals, say steel to stainless steel or Monel. It is very important to use the correct electrode for the application at hand.
