The structural advantages of gray iron castings


Release time:

2023-12-22

The surface is smooth, so the machining allowance is smaller than that of cast steel. Poor surface machining quality has little adverse effect on fatigue.

The structural advantages of gray iron castings:

1. The surface is smooth, so the machining allowance is smaller than that of cast steel. Poor surface machining quality has little adverse effect on fatigue.

2. It has a high vibration attenuation and is commonly used as a vibration bearing base.

3. It is not allowed to use parts that work at 250 degrees Celsius for a long time.

4. The performance of different parts is consistent. Suitable for thick castings with high requirements and different cross-sections.

5. It is sensitive to cooling speed, so thin sections are prone to forming white cracks and cracks, while thick sections are prone to forming Ryukyu pine. Therefore, when the wall thickness of gray cast iron exceeds its critical value, its mechanical properties significantly decrease with the increase of wall thickness.

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