Most of the plastic moulded products we handle have a wall thickness of 1.5 mm to 2.5 mm.
This is because it is more convenient to have a wall thickness of this size when taking into account factors such as mouldability, failure rate and the rigidity of the moulded product.
Thin wall thicknesses (less than 1.0 mm) require high injection pressure for moulding, which is hard on the moulding machine and the mould. This also increases the risk of moulding defects such as short shots.
On the other hand, thicker wall thicknesses (3.0 mm or more) make it difficult for the inside of the resin moulded product to cool, causing warpage deformation and cavitation defects, as well as increasing the moulding cycle time, resulting in lower productivity.
There is a feeling in the world that thin-walled products are increasing in terms of reducing the amount of resin used and reducing weight. The conditions are even more severe than for general wall thicknesses, so it is the moulder's real intention to mould with general wall thicknesses if possible...
When forming thin-walled mouldings of less than 0.5 mm, such as ↑, motor valve gates are used to exquisitely control the resin flow velocity and open/close timing to remove material.
➡Motor valve gate - click here.
Hot runner creation support software - click here
Realisation of thin-wall moulding by injection compression... Click here.
➡About heat & cool... Click here.
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