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Bucket Teeth Loss and Care

Nov. 21, 2019

As times progress, some mechanical equipment will often appear in our lives. For example, excavators are the most common equipment. When people see excavators, his most prominent shape is his teeth. I want an elephant's nose, but in fact, his role is like the elephant's nose. Therefore, his loss is also the biggest. So how does the Excavator Bucket Teeth Manufacturer reduce tooth loss?

The Bucket Adapters are quite versatile, but they are used on machines such as excavators. There are not many casting methods for the teeth. There are two types of sand casting and precision casting. Forged tooth has high cost and low output.

Bucket Adapters


Bucket Adapters

Sometimes the tooth will be damaged to varying degrees during work, resulting in the failure of the tooth. The force analysis generally contacts the tooth surface and the object to be excavated. The force is different in different working stages in a complete excavation process. When the tip of the tooth first contacts the surface of the material, the tip of the tip is subjected to a strong impact due to the faster speed. If the yield strength of the teeth is low, plastic deformation will occur at the tip. As the depth of the excavation increases, the force on the teeth will change. When the tooth cuts the material, the tooth moves relative to the material, and a large positive pressing force is generated on the surface, thereby generating large friction between the tooth working surface and the material.

Therefore, it is recommended to perform proper normalizing on the tooth casting after casting to improve the structure and performance and improve the service life. After reasonable heat treatment of the castings, the service life of the teeth is nearly doubled under the same working conditions.

The process of the tooth: sand casting, forging, precision casting.

Sand casting: the lowest cost and the same level of workmanship and tooth quality is not as good as precision casting and forging casting.

Forging: The highest cost and the highest level of craftsmanship and tooth quality.

Precision casting: The cost is moderate but the requirements for raw materials are very strict and the process level is relatively high. Some of the precision cast teeth have better wear resistance and quality than forged casting teeth due to the ingredients. At present, precision casting tooth is the mainstream manufacturing process of the tooth on the market.

Reason for failure

An open-air Excavator Bucket Teeth failed early due to severe wear and tear. For the bucket teeth, the failure modes and failure causes of the tooth surface were analyzed, and improvement measures were proposed.

Failure trait

The failure form of the tooth is subjected to different degrees of wear and impact under different working conditions, and different degrees and different forms of failure occur. The tooth is ineffective under normal working conditions for only 3 days (about 36h), which is not desirable from an economic point of view or from an angle of use. It can be seen from the macro photograph of the failed parts that the front working surface of the tooth has obvious rill-like scratches, the tip has a small amount of plastic deformation, no crack, and the front working surface (the surface in contact with the ground) is the thinnest. 4mm, the rear working face is about 8mm.


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