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FAQ
- What kind of welding rod used for cast steel?
- Cast steel can be divided according to the composition of low carbon steel, medium carbon steel, different components of the electrodes used is not the same, if it is a low carbon composition, the common electrode, such as E4303 (J422) on it; if it is steel components, should be used in high strength structural steel electrode, such as E5015 (J507) E5515 (J557), welding welding and preheating, to prevent cracks.
- What is the corresponding brand number of electrode model E55?
- E55 stands for: E carbon steel welding rod, low alloy steel welding rod, the strength is between 440 ~540MPA, and the main alloy is Mn-Si-Mo.E55 series welding rod:E5511-G, the Chinese brand is J555 AWS, and the model is E8011-G:Cellulose type AC and DC+ are used for vertical butt welding of low alloy steel tubes, girth welding, butt welding, and vertical structure welding of corresponding strength grade.E5516-G, the Chinese brand is J556 AWS, and the model is E8016-G:Low hydrogen type AC and DC+ are suitable for welding medium carbon steel and 15MnTi, 15MnV and other low alloy steel structures.E5516-G, the Chinese brand is J556RH AWS, and the model is E8016-G:Low hydrogen type AC and DC+ are suitable for pressure vessel, offshore platform, ship and other low alloy steel structures.E5515-G, the Chinese brand is J557 AWS, and the model is E8015-G:Low hydrogen type DC+ is suitable for welding medium carbon steel and 15MnTi, 15MnV and other low alloy steel structures.
- Why should the electrode be baked before use?
- I don't want to tell you anything that is very theoretical and very textbook. Our project is very wet in the south, so the steel production base often does.The main reason for baking the electrode is (or to prevent) the welding rod from being wetted.Welding rod after wetting, in the welding of workers will indirectly cause more slag, more bubbles, the current is not good control, burn the main tendons, and the strength of the steel bar connection will not meet the design requirements.That's all.
- Can A102 welding rod weld 316L?
- 316L belongs to ultra low carbon austenitic stainless steel, and if using A102, weld metal will reduce the ability to resist intergranular corrosion, so in the relatively high requirements of equipment, as far as possible using A022 welding rod.
- I want to buy a small inverter welder, I heard that welding machine is very light, how heavy is it? It's the kind of carry. And how much is the price?. I wonder if the welder can use an acid welding rod? When welding, is it the same as the feeling of communication? I used the DC blow, it seems a little big. It's not good at all.. There is also a big point of 315 inverter welding machine, how much is it?.
- The kind of welding machine that you said could be used with an acid electrode. He has many functions, which can be shared by AC and DC, with separate DC or AC, of course, the price is different. About 20KG or so, the market is now available from 300-800. Import, brand, public can not be the same, the price varies greatly. The big 315 is now 450-550 between.
- What type of welding rod is used for welding 16MnD?
- Using J507RH welding rod.DC reverse connection.Preheat about 100 degrees before welding.When the plate thickness is less than or equal to 20mm, the V type groove is opened and the U groove is used when the plate thickness is greater than 20mm.Current: Phi 3,2 welding rod A=130-150, Phi 4 electrode A=180-200, Phi 5 electrode A=230-250.Conditional, should be done after welding stress treatment.
- What kind of welding rod is A137?
- A137 is austenitic stainless steel electrode, belonging to chromium nickel stainless steel electrode.Grade A- indicates austenitic stainless steel; 13- is the chemical composition code; 7- represents alkaline welding rod; DC power supply welding.It is used in the welding of more important corrosion resistant and 0Cr18Ni11Ti stainless steel containing titanium.
- Stainless steel 2025 is how material, with what electrode?
- Carbon steel, stainless steel welding rod
