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Operating Methods for Cleaning Large Cast Steel Parts
2022-09-07
Today we will explain the cleaning operation method for large cast steel parts. It is not finished once the casting is done; it still needs to be cleaned. Many people think the cleaning step is simple, but the simpler the task, the more complicated it actually is. When cleaning, the foundry must be well prepared.
1. Check if the casting has solidified. If it has not solidified, the casting must not be moved, nor should it be forcibly cooled with water spray at temperatures above 600°C. The casting should be allowed to cool naturally for 2-3 hours before proceeding. This reduces the risk of heat injuries to personnel during cleaning and defects caused by incomplete solidification of the casting.
2. Pay attention to safety during the cleaning of the casting. Wear protective equipment as required and reconfirm the safety of the working environment. Prepare the machines and tools used for cleaning large cast steel parts, such as water sand cleaning machines or pneumatic hammers. Carefully inspect the machines to ensure they are in good condition and can operate safely and normally.
3. Cleaning the casting starts with removing the waste sand from the surface or the mold cavity. The foundry uses machines like water sand cleaning machines or pneumatic hammers to clean the waste sand from the casting. Next, remove the risers, burrs, flash, and gates from the gas-cut casting. After the cast steel parts are cut and meet the requirements, the casting needs to be cleaned again to remove residual sand particles, then weld repairs are made to ensure the integrity of the casting. Then, use a grinding machine to polish the casting to make it smooth and flat. Finally, after polishing the large cast steel parts, they can be inspected and then prepared for the heat treatment process.
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