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Welding Electrode Rod AWS E6013,E7018,E7016,E6011,E6010, E308l-16,E319L-16

FAQ

Welding rod for reinforcing cage of bridge pile foundation

First, according to JGJ18-2003T steel welding and acceptance procedures, welding HPB235 steel, E4316 and E4315 welding rod can be used; welding HRB335 steel bar, E5016 and E5015 welding rod should be adopted. E6016 and E6015 welding electrodes shall be used to weld HRB400 steel bars.Two, selection of basic principles of welding rod:1, equal strength principle, that is, choose the same strength as the parent material electrode. Generally used for welding low carbon steel and low alloy steel.2, with the principle of the same component, and the parent metal chemical composition of the same or similar electrode. Generally used for welding heat-resistant steel, stainless steel and other metal materials.3. The principle of crack resistance is to use alkaline welding rod with good crack resistance so as to avoid cracks in welding and using process. Generally used for welding rigidity, complex shape, the use of dynamic load in the welding structure.4, the principle of the welding process by anti stomatal limitation, such as oil, welding joints rust cleaning inconvenience, acid electrode should be used in anti blowhole ability, so as to avoid the gas in the welding process to weld porosity formation stranded.5, low cost principle, to meet the requirements of the premise, as far as possible the use of good performance, low cost and high efficiency of welding rod.6, and other principles of toughness, that is, electrodes, deposited metal and base metal and other toughness or similar, because in practice, the welding structure of the fear of bad, mostly because the strength is not enough, but the lack of toughness. Therefore, when the electrode is selected, the strength is slightly lower than that of the base metal, while the toughness should be the same or similar. This is also the low toughness and toughness of high strength steel when welding.

Why should we weld from top to bottom when welding with bar welding?

Reinforced lap welding the weld bead can maintain high strength, after the completion of requirements of weld full, without inclusions or non fusion defects such as welding method generally depends on the position of welding joint, when the flat from left to right or right to left does not matter, as long as we can guarantee the quality.You said from the bottom up welding, welding joint may be placed perpendicular to the direction perpendicular to the ground, when the weld shall be in accordance with the welding operation to welding, because the weld pool and perpendicular to the ground electrode melting molten iron will be under its own gravity falling down, if down from welding that will cover the molten metal in the weld front (i.e., the hot metal lead) base material is not directly heated and melted arc, resulting in incomplete fusion, incomplete welding defects

Why should the electrode be dry?

Some electrode will absorb moisture in the skin, the drug will contain water, and water in welding under high temperature decomposition of atoms H and O atoms, the two atoms into the weld on the weld quality will be the formation of bad, so the electrode drying before use.Specific can be in accordance with the specifications of the temperature and time in the drying box. If there is no manual, you can also press the following temperature:The acid electrode is dried at 100150 degrees 1-1.5HAlkaline bottom hydrogen electrode is dried at 380-420 degrees 1-1.5HIron powder acid electrode drying at 150-200 degrees 1-1.5H.

What kind of welding rod is used for No. 55 steel?

No. 55 steel is made of genuine WEWELDING 600 welding rod.Because the 55 steel for high strength steel, treated with surface hardness and high strength, plasticity and toughness but poor machinability of medium, weldability, hardenability, water quenching is the tendency for crack formation, welding crack resistance of the need for a very ideal electrode to WEWELDING 600 welding, ensure tensile strength requirements of crack resistance and use of the process after welding.Characteristics of WEWELDING 600 special alloy steel welding rodWEWELDING 600 is a low heat output, suitable for special nickel chromium alloy steel electrode welded all-round, universal design is extremely wide, the general strength of parent materials with high strength, excellent welding performance, stable arc, beautiful shape of seam, in oil, water and rust conditions can welding effect is excellent, can be welded different steel.Application of WEWELDING 600 special alloy steel welding rodSuitable for welding of tool and mould, high-speed tool steel, hot work tool steel, steel, cast steel, T-1 steel, Nai Zhengang, vanadium steel, spring steel, martensitic stainless steel, austenitic stainless steel, ferritic stainless steel, and the unknown as well as between the various different types of steel welding etc.. Such as high pressure valves, broken bolt clearance, shaft transformation, etc., the effect is very satisfactory.Technical parameters of WEWELDING 600 special alloy steel welding rodTensile strength: 125000 psi (862MPa)Yield strength: 90000 psi (620MPa)Elongation: 35%Hardness after welding: HRC23 (work hardening up to HRC47)Power supply: AC and DC dual use, DC DC reverse connection

When welding, the welding rod sometimes can easily stick to the weldment, and it is not easy to arc. The ignition is also easy to extinguish. Why is that? What happens when this happens?

I am a welding Education under normal circumstances so that you also appeared that the welder hand instability of basic work is not solid, the word "practice" learning when I have seen this kind of situation the old master directly let me practice!

Why is the welding of important structure using alkaline electrode?

The skin contains many basic oxides (CaO, Na2O, etc.) called alkaline electrode. The basic electrode has strong desulfurization and dephosphorization ability, and the coating has the function of hydrogen removal. The hydrogen content of welding joint is very low, so it is also called low hydrogen type welding rod. Basic welding seam has good crack resistance and mechanical properties, but poor technology performance, general DC power supply welding, mainly used for important structures (such as boiler, pressure vessel and alloy steel welding etc.).

Requirements for welding electrodes for temperature and humidity

Storage should be kept at 10---25 degrees Celsius and less than 50% relative humidity.

What's the type of electrode used for 304 stainless steel?

Model: E308-15, brand: A107Or: E308-16, brand: A102