Precautions for Determining the Wall Thickness of Plastic Parts

It is important to determine the wall thickness of the plastic part reasonably. The wall thickness of the plastic part is determined first by the requirements of the plastic parts: including the strength, quality cost, electrical performance, dimensional stability and assembly requirements of the parts. The general wall thickness has empirical values. The iron is generally 2mm thick and the vacuum cleaner is 2.5mm. The notes are as follows:

a. The wall thickness of the plastic parts should be as uniform as possible, avoiding too thin, too thick and abrupt wall thickness. If the plastic parts require wall thickness changes, gradient or arc transition should be used, otherwise, the plastic parts will be deformed due to uneven shrinkage. , affecting the strength of plastic parts, affecting the molding process such as fluidity during injection molding.

b. The wall thickness of the plastic parts is generally in the range of 1-5 mm. The most commonly used value is 2-3 mm.

c. Minimum wall thickness and the common wall thickness of commonly used plastic parts: (mm)

d. Try not to design the ribs and screw columns too thick. It is generally recommended to take half of the wall thickness of the body to be safer. Otherwise, it may cause appearance problems such as microcosm.

e. Try not to design the part as a separate flat plate. The size is small, otherwise, the deformation will cause the parts to be uneven.

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