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The difference between ductile iron castings and gray iron castings

Ductile iron castings and gray iron castings have a wide range of applications, and have always been the most commonly used iron castings, so how to identify whether the castings are ductile iron castings or gray iron castings? Today, I will talk to you about their differences.

Application of colloidal silica in precision casting

Silica sol is a dispersion with good adhesion and high stability, and it is widely used in the precision casting industry as the main binder. The process flow of silica sol precision casting is mainly composed of the following parts.

Do you know how steel castings are cleaned

Anyone who knows steel casting manufacturers knows that steel casting cleaning is a link after the pouring process and an indispensable step in the whole process, although it is not the most technically demanding and difficult link.

How do steel casting manufacturers repair steel casting defects?

Steel casting manufacturers leave the factory with zero defects. Many steel casting factories will identify defects in time and rectify them during the processing of steel castings. Therefore, when we encounter a casting defect, how do we address it?

Do steel castings need heat treatment

There are casting defects such as porosity, cracks, shrinkage porosity, coarse grains, uneven structure, residual internal stress, etc., which greatly reduce the strength of steel castings, especially plasticity and toughness.

What are the ways to reduce porosity in ductile iron castings

1. Because ductile iron contains magnesium, the eutectic point on the state diagram shifts to the right. When the magnesium content is 0.035-0.045%, the actual eutectic point is about 4.4-4.5%.

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