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FAQ
- Types of electrodes
- Ask me, the welding rod according to the diameter commonly used has 2.5, 3.2, 4. According to the use of ordinary, stainless steel, cast iron, wear-resistant electrode. Among them, the ordinary electrode according to grade 422506 and 502, stainless steel 102, 132, cast iron points 302, 402. Electrode wear is generally used in digging bucket, carbon and some high wear resistant. These are commonly used welding rod, and some special electrode, the amount is very small. Generally speaking, the higher the grade of the electrode, the more expensive the price. Little dragon, what else do you know? Ask me!
- Why can DC welding machine weld any electrode?
- General welding rod (acid welding electrode) is both AC and DC dual-use.Basic electrode, recommended DC, AC is also ok.Cellulose electrodes must be dc.So it comes to this conclusion.
- 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
- What kind of steel bars are used for the two electrodes?
- J422 welding rod is mainly used for welding low carbon steel structure and low strength low-alloy steel, such as A2, No. 20 steel, No. 35 steel, etc..J502 welding rod is mainly used for welding low strength carbon steel structure and alloy steel, such as A3, No. 45 steel, 16Mn and so on.J422 welding rod and J502 welding electrode are common terms, corresponding to international standard brands are E4303 and E5003 respectively. Is a kind of acid electrode, titanium calcium coating, J structural steel electrode, 42 and 50 respectively, the tensile strength of the weld metal (more than 420MPa and more than 500MPa), said 2 electrode for all position welding (welding, welding, overhead welding, horizontal welding).
- What welding rod are used for welding of 304 stainless steel pipes?
- 304 electrode, 316 with 316 electrodes, the market has sold
- Can ordinary electrodes be welded to stainless steel? What's the effect?
- No ordinary welding rod, OK?.The most common is J422 (E4303) titanium calcium acid low carbon structural steel welding rod.This type of electrode can only be welded to Q235 grade or slightly lower than Q235 of low carbon structural steel.Stainless steel type is more, no matter that kind of stainless steel, can not use J422 low carbon steel welding rod,The base metal electrode material is different, and the alloy element has a great difference, and the welding rod, molten iron and droplet base material can not be fused together.The thin stainless steel is welded by tungsten argon arc welding. The heavy stainless steel can be welded with stainless steel electrode. The welding rod should be made according to the material of the base metal, and the electrode with the same or similar component is selected. Specific electrode diameter, according to the base metal thickness, welding location and other factors.
- What are the characteristics of welding rod E6010? What are the main points of operation?
- E6010 type welding rod belongs to all position welding rod of cellulose, which has great arc blowing force. When using, direct current welding machine and reverse polarity welding method are adopted, the lower welding is fast, and the welding speed is faster.
- What kind of welding rod does 1Cr13 steel plate use?
- Usually in 1Cr13 and other dissimilar materials welding, choose A302 welding rod, welding should not preheat and after heat, but after welding, it is best to increase heat treatment (of course, no heat treatment is also no problem)It is better to use G202 or G207 if welding of 1Cr13 same kind of material, preheating before welding, heat after welding and heat treatment
