Q:What electrode does Q235 use?

According to the classification of the characteristics of the slag after the electrode is melted, the welding electrode can be divided into an acid welding rod and an alkaline welding rod. The main component of acid electrode coating is acid oxide, such as Q235 low carbon steel. When welding important structural parts, E4315, E4316, E5015 and E5016 should be selected according to different welding conditions.Q235 is a carbon structural steel, which is equivalent to the A3 and C3 steel in the old standard GB700-79, and is used in the Russian TOCT brand. The grade Q represent in yield strength. Normally, the steel is not used directly after heat treatment.

Q:How many kinds of welding rod do you have?

The electrode use is divided into 9 types: structural steel electrode (including carbon steel and alloy steel), molybdenum and chromium molybdenum steel electrode, stainless steel electrode, welding electrodes, low temperature steel electrodes, cast iron electrode, nickel and nickel alloy electrode, copper and copper alloy rods, aluminum and Aluminum Alloy electrode.

Q:Electrode whitening what reason?

Drug skin efforescence phenomenon. Domestic skin often add a small amount of soda, easy to press coating. Soda will brighten during storage, the local white skin medicine.

Q:Why can DC welding machine weld any electrode?

Direct current, especially the direct current produced by the inverter DC welding machine, is relative to the power frequency AC welding machine. The arc is stable, the spatter is very small, and the arc is not easy to break. The welding parameters have almost no fluctuation under the influence of input voltage. Three phase welding machine also supports thrust current, hot arc ignition function. It can avoid sticking electrode when arc welding with basic electrode. If there is no frequency exchange of AC, it is difficult to weld slag hole. A metal with a high sensitivity to carbon is not susceptible to cracks in heat sensitive metals.Basic electrode J426 J506 can be AC DC welder dual-use. These two kinds of welding rod contain arc stabilizer. However, from the quality of welding, DC welding machine is much better quality than AC welder.

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

1, welding rod welding lap when welding from bottom to top welding is because if it is from the top to the welding, that is, backward welding, light good-looking, no strength, welding pool is very shallow.2, the electrode (covered electrode) welding or welding filler metal in melting joint welding of the workpiece. The electrode material is usually the same as the material of the workpiece.3, the overlap is in the concrete structure component, when the steel bar length is not enough, according to certain request, two steel bars overlap each other and form the connection. The basic forms of reinforcing bar connections are banding, lapping, welding and mechanical connection. Two different types of materials such as steel plate is called the coincidence of the lap, lap, available fixed rivets or bolts; wooden lap, nail available; steel lap, tighten the buckle card available; wood lap, use wire winding stiffening, reinforcement lap, reinforced by a certain length of overlap lashing, concrete grip of the two bars the synchronous force.

Q:How big is the maximum electrode and how big is the minimum electrode?!

According to the size of the electrode core, usually divided into 2, 2.5, 3.2, 4, 5, 6 mm several, the welding current of them were 50 ~ 80A, 100 ~ 130A, 160 ~ 200A 200-300A 300A-400A.

Q:This question has been answered, but the answer is not consistent with the proposed problem, I want to ask is how long after the use of suitable electrode, can not damage the electrode holder, but also save, thank you!

Don't want to damage and save the electrode, the electrode holder, you get 40mm on the line, mainly to see your operating

Q:How can I distinguish the basic electrode or the acid welding electrode from the welding rod number?What are the basic electrode models?What are the types of acid electrodes?

The number of electrodes from 0 to 6 is acidic, and 7 to 9 is alkaline

Q:Stainless steel 2025 is how material, with what electrode?

Carbon steel, stainless steel welding rod

Q:What kind of welding rod needs baking?

The electrode drying conditions of various types of drug skins are as follows (reference value):The baking temperature of acid welding rod is 150~200 1HThe baking temperature of alkaline welding rod is 350~400 1HThe baking temperature of cellulose electrode is 80 DEG C and the temperature is 1.5 ~ 2HThe baking temperature of graphite type electrode is 200 1H