The electrode consists of two parts: core and medicine.The electrode is evenly coated with the coating (medicine skin) outside the metal core and pressed it on the welding core.There are different types of boxes and different welding cores.In order to ensure the quality and performance of the weld, the metal core of the welding strip is strictly strictly regulated on the content of the metal elements in the welding core, especially for the content of harmful impurities (such as sulfur, phosphorus), and should be strict with strictThe restrictions are better than the mother material
Guidelines for selecting welding bars
I. The current use of carbon steels for carbon steel stripes are divided into two types: E43 and E45. When welding low -carbon steel, it is generally selected.When, choose an alkaline box.Second, the welding of low -alloy structure steel for low alloy structure steel is to consider the problem of equal strength principles.The strength of the weld is required to be equal to the strength of the mother material metal.Secondly, the requirements of chemical composition must be considered.Under normal circumstances, the content of potassium and phosphorus should be consistent with the parent material.For the selection of acidic strips and alkaline stripes with the same strength level, it mainly depends on the structure shape, steel plate thickness, working conditions and cracking performance of steel for welding parts.
There are several types
In addition to copper welding sticks also have carbon steel box, copper welding sticks are generally sold single -rooted, but carbon steel welding sticks are not, carbon steel bar carbon steel strips can be sold in kg!The difference will be relatively affordable, but the texture of carbon steel welding sticks is very heavy, so there will be too many quantities when they are called!Craft performance, beautiful welding tract, stable arc of the electrode, high corrosion resistance, the influence of air on him is not very large, less splash after use, and stable operating performance, increasing the speed of peoples requirements for engineering!
Welded strip specification
The stripe is the melting electrode used by coating the arc welding of the strip of medicine. It is composed of two parts: medicine skin and core.There are about 45 ° horn at about 45 ° at the front of the box, which is to facilitate the radical arc.There is a naked welding core at the tail, accounting for about 1/16 of the total welding, which is convenient for welding clamping and conducive to conductive conductivity.The diameter of the stack actually refers to several specifications such as 2, 2.5, 3.2 or 3, 4, 5, or 6mm. The most commonly used is three types: small 3.2, small 4, and small."Generally between 200 and 550mm.
Block price
The most expensive stripes of 3.2 and 2.5 are not more than 19.White steel box 95-105. The white steel bar in the old stock market is one yuan a yuan.

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