Several situations of fracture of excavator breaker hammer steel brazing

There are roughly two situations for the fracture of the excavator breaker hammer steel brazing:

1. Fracture

(1) The fracture section mainly depends on the pattern of the excavator breaker hammer steel brazing, which is caused by irregular operation and is also the most common type of fracture surface of the steel drill. This is mainly due to the wear of the lower sleeve, the steel drill and the inner sleeve. The strike angle of the drill rod is abnormal, resulting in bending stress and fracture of the steel drill.

(2) Fracture position

For this kind of fracture, there is no obvious trauma on the surface of the excavator breaker hammer steel brazing, the damaged section is uneven, and there are fragments in the opposite direction when the damage starts.

(3) The position of the starting point of the fracture

2. The tail is broken

(1) The location of the bad side

(2) The size of the face

If it is not used for a long time, the excavator breaker hammer steel brazing should be treated with anti-rust treatment, and the heat treatment layer of the rusted drill rod will be broken, which will cause fatigue damage.

Leverage operation, fatigue damage, and corrosion are not covered by the warranty. Within the scope of the warranty, failures caused by defects in internal materials are covered by the warranty. The material penetrates foreign matter during the manufacturing process and cracks from the inside, unlike the corrugations at the edges. The cross section is uneven, and the water ripples are inside the starting point.

Causes of damage to the front end of the excavator breaker piston:

During the use of the breaker, pieces of metal fall off, and the pieces fall after the front cover. After dismantling, it is found that the striking surface of the front end of the piston has been damaged. After checking the excavator breaker hammer steel brazing used by the breaker, it is self-made by the user. The hardness is too high. When the hardness is higher than that of the piston, the front end of the piston wears faster during the operation.

How to deal with the damage of the front end of the excavator breaker piston:

Trim the piston head with a sander, but within certain limits. Explain to the customer to buy genuine parts (steel drills - drill rods).