Though the surface of the wheel loader tooth pin, we can find some cracks

　　If we use our eyes to carefully check the surface of the wheel loader tooth pin, we can easy to find the on its surface has some small cracks, especially of the bottom position of teeth cavity hole of the wheel loader tooth pin has some small cracks, which direction is the crosswise direction. If the surface of these crack fracture surface has the serious oxidation problem, then looking at the surface color of the wheel loader tooth pin, we can find it has no metal brightness, and the shape of the crack is very zigzag and without no rule.

　　Besides, the wheel loader tooth pin production manufacturer attention that the exist position of these cracks are in the surface of the casting working piece and its width is very big and looks like the tear shape, so we can confirm the main reason cause the cracks produced is because the temperature is too high during the normal production period.