It is also a type of metal part making called grey iron sand casting. This is accomplished by casting molten grey iron into a sand mold. We make a sand mold by packing sand around a shape called a pattern, similar to the piece that we want to produce. That hot grey iron (while molten) is poured into the mold and allowed to cool, then the sand is removed, leaving just the metal piece. This allows creating complex shapes with high accuracy and is relatively inexpensive, making this a common method in factories.
Making the Mold: The pattern is then placed in a box filled with sand. We have to pack the sand really tightly around the pattern to form the mold. Something is mixed in with the sand to hold its shape as we pour in the hot grey iron.
Pouring the Iron: The next step is pouring our hot grey iron into the mold with a ladle. They heat up the iron really high so that it can flow into all the little details of the mold.
Economic: It is relatively cheap to perform grey iron sand castings, as simple tools and materials can be utilized. That makes it great for producing large numbers of components without a high price tag.
Recent Posts High Precision -- Grey iron sand casting produces parts that are very precise, so fit well, and often don not require additional operations to finish them.
Proper Venting One problem that can occur during grey iron sand casting is the introduction of air pockets into the metal part. To get around this, we ensure the mold has vents, allowing trapped air to escape as we pour in the iron.
Temperature Control — It is also a very common issue that if the temperature is not appropriate, then it creates issues in the metal part. You are afraid that the molten iron not cast well, so you carefully control how hot it is.
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