How To Avoid Fracture Of Gray Cast Iron Effectively?

As a common casting defect in production and processing, the fracture of casting parts should be paid attention to by foundry manufacturers. The fracture of gray cast iron mainly refers to the casting defects caused by mechanical action or careless handling of casting parts. Today, we will briefly talk about the fracture defects of gray cast iron parts.

 

 

1. Gray cast iron modeling design. The irregular section of the cast parts (casting sudden thickness or sudden bulge), the inner corner is too small, and the reinforcement is not set, etc., will cause the local design of the gray iron parts to be poor, so that a little attention will cause the fracture of the cast iron parts when handling.

 

2. Gating system design. In the process of gray cast iron production, if the casting system is poorly designed, it may cause the solidification rate of the cast parts to be difficult to reach the standard, resulting in casting stress, deformation and fracture in the thin section of the cast parts.

 

3. The impact of casting materials. The metal composition of gray cast iron is an important reason for the fracture of cast iron. Some metals are extremely sensitive to cross section and cooling rate, and the use of such metals can easily cause the fracture of the cast.

 

4. Other reasons. The main reason for the fracture of gray cast iron is still the operation of the staff. Casting workers cause gray cast iron pieces to fall from a height during handling, make castings collide with each other during cleaning, cast parts tie up too tightly on the plate, and other negligence will accelerate the fracture of the cast parts.

 

 

In the actual processing process, gray cast iron manufacturers should strictly manage, develop a reasonable operating process, and strengthen the production training of foundry workers, so as to effectively reduce the probability of gray cast iron fracture.