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Advantages and Disadvantages of Resin Sand Casting Process
Resin sand is a common casting material in foundry industry, so
resin sand casting
process is a main casting method for
iron castings. This article will introduce its advantages
and disadvantages to buyers for iron castings.
The advantages of resin sand casting process:
1. The resin sand castings have high dimensional accuracy, and the
external outline is clear; the castings have smooth surface, and the
appearance is in good quality; the structure is compact, and the
castings have good integrated quality.
As the resin sand (furan resin sand) has good fluidity and it is
easy to compaction, so the ejection time can be adjusted, after
hardening, it has high strength, which makes it uneasy to be
deformed in a subsequent process of handling and co-box. Due to the
high stiffness of resin sand, wall displacement phenomenon in
casting and solidification process is basically invisible, so the
dimensional accuracy of castings is high, and it can be increased by
1 to 2 levels, compared with the castings produced by clay sand and
oil sand.
2. Resin sand does not need drying process, so the production cycle
is shortened, and the energy is saved.
3. The drying process is eliminated, and the sand is easy to
compaction. It has good collapsibility and it is easy to clean-up,
which significantly reduced labor intensity and create conditions
for the realization of the mechanized production.
The above analyses are the main advantages of resin sand casting,
but it also has some shortcomings.
The disadvantages of resin sand casting process:
1. It has great demand for the original sand and Furan resin;
2. There is irritating odor in the production process of modeling
and casting.
3. If you use resin sand to conduct the production, the cost is
higher than green sand
casting process, so all factors should be considered.
Although the resin
sand castings are more expensive relatively, considering its
advantages, this casting process is still widely used in many
iron foundries of China,
especially for producing large
iron castings.
Resin Sand Casting
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