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Effective Methods for Resolving Hydraulic Breaker Chisel Fracture Issues

Release time:2025年8月1日

  When using a hydraulic breaker, chisel fracture is a common issue, often caused by factors such as material quality, impurities, or internal defects. So how should we address these issues? Below, we will discuss how to effectively resolve chisel fracture problems.

  The reasons for chisel breakage are not only related to the material quality of the chisel steel but also closely linked to factors such as erosion from mine water, heat treatment processes, and rock drilling techniques. During rock drilling, the chisel undergoes frequent impacts and twists of around 2000 times per minute, resulting in alternating pressure, tensile, bending, and shear stresses within the chisel.

Hydraulic Excavator Steel Hammer Breaker Bit / H-Wedge Chisel Tip breaker rod chisel

H-Wedge Chisel Tip breaker rod chisel

  When these forces exceed the fatigue limit of the chisel steel, tiny cracks (fatigue cracks) form inside the chisel. As these cracks gradually enlarge, the effective cross-sectional area of the chisel decreases. Once the cross-section reduces to the point where it can no longer withstand impact loads or external forces, brittle failure occurs, leading to fatigue fracture. Hydraulic breaker manufacturers remind us that erosion from mine water and damp air can accelerate the expansion of cracks in the chisel steel.

  Additionally, during the forging and heat treatment processes of the chisel tip, shoulder, and tail, improper temperature control or unreasonable processes can also result in the formation of thermal stress and microcracks within the chisel. Therefore, it is crucial to promptly address fracture issues using the methods mentioned above when using the chisel to minimize losses.

  The above information covers the reasons and solutions for hydraulic breaker chisel fractures. It is hoped that through a detailed understanding of this product knowledge, users can operate and use the product more reasonably and effectively.

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