facing sand in foundry_facing sand in foundry

4. Ejection Mechanisms Once the metal has cooled and solidified, it needs to be accurately ejected from the die. The ejection system must be designed to apply the appropriate force without damaging the cast part. Various types of ejection mechanisms, such as pins, plates, and hydraulic actuators, can be used, depending on the complexity and geometry of the part.

3. Surface Finish and Detail While the surface finish of green sand castings may not be as smooth as die-cast components, modern techniques allow for improved finishes and detailed geometries. Sand casting techniques can produce complex designs with fine details, making it ideal for applications where aesthetics and precision are vital.

Furthermore, the high level of dimensional accuracy offered by this casting process minimizes waste material and reduces the total weight of components. This is particularly advantageous in industries like aerospace, where weight reduction translates to improved fuel efficiency and performance. The ability to manufacture lightweight components without compromising strength or durability is a significant driving force behind the growing adoption of high precision casting in these sectors.

Tonnage refers to the amount of clamping force required to hold the two halves of a mold together during the injection of molten metal. This force is typically measured in tons and is essential for preventing the mold from opening due to the high pressure exerted by the injected metal. If the clamping force is insufficient, the molten metal may leak out of the mold, leading to defects in the final product.

1) Put the degreaser into the cleaning tank, and the degreaser adopts the following formula: a) 0.8% detergent + 99.2% tap water; b) 0.5%~1.0% washing powder + 99.5%~99% tap water.

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