Can the excavator hammer be welded after it falls off?

2020-08-17

The hammer is an indispensable part of the excavator, and it is also one of the parts of the excavator with a faster loss rate. During the construction process, the hammer often falls off, so what should the hammer fall off? Do it? Change to a new hammer head? Or solder back the fallen hammer head? Can the hammer be welded?

In fact, the excavator can be welded after the hammer head falls off, and the method is not complicated. It can be welded with MG600 welding wire. MG600 is a relatively general-purpose chromium-nickel alloy electrode (welding wire) with high efficiency and strength, with plasticity and toughness. , Crack resistance is very good, almost suitable for all kinds of common steel. The welding process performance of this kind of electrode is also excellent, and it has the advantages of stable arc, easy slag removal, less spatter, uniform and beautiful welding seam.

MG600 has a wide range of uses, such as welding tools and high-speed tool steel, molds, cast steel, hot work tool steel, manganese steel, vanadium-molybdenum steel, T-1 steel, seismic steel, martensitic stainless steel, spring steel, austenitic steel Stainless steel, ferritic stainless steel and welding between various types of steel can be used, and it can also be used in high pressure valves, removal of broken bolts, and shaft transformation.

Why can the excavator be welded after the hammer head falls off? Thanks to its material, the commonly used materials for hammer heads are high chromium alloy, high manganese steel, and low carbon alloy steel. High chromium alloy is a material with good abrasion resistance, but this material also has a shortcoming that cannot be solved temporarily, that is, low toughness and brittle fracture. In order to make the high chromium alloy hammer head operate more safely, all manufacturers now adopt a composite hammer head structure.

On the one hand, this structure uses a large-area hammer handle to support the high chromium hammer head, allowing the toughness of the hammer handle to support the huge impact during the crushing process; on the other hand, it is a two-liquid thermal composite material, which uses chromium, molybdenum, and copper. Different optimized combinations of, nickel, vanadium, titanium and other alloys and a rigorous and unique production process, integrating high chromium alloy casting excellent wear resistance, high temperature oxidation resistance, thermal fatigue (or corrosion resistance) resistance and good toughness and toughness of cast steel Machinability is integrated, and it has the overall comprehensive performance of wear resistance and impact resistance that is difficult to achieve with a single metal material.

In summary, the hammer head of the excavator can be welded if it falls off, because the material of the hammer head is a material that can be welded. However, according to feedback from some netizens, although the hammer head can be welded, it is more likely to fall off again, so If the hammer head falls off, it is better to replace it with a new one.