How to adjust plastic part warping deformation

With the increasing of compact and mini car, the use of plastic products developed towards lightweight volume, structure complicated. In this case, some thin wall injection products become more and more popular in the field of automobile.

Warping deformation is one of the common defects in thin wall plastic molding,because it involves the accurate prediction of buckling deformation, and would varies because of different material and shape. The warping deformation will affect the shape precision and surface quality. Once the warping deformation exceeds permissible distortion, it would be forming defects, then affect the product assembly.

Warping deformation refers to the shape of the plastic off the shape of the mold cavity. Since the warping deformation not only affect the product assembly,performance, but also affect the appearance quality of the product.Warping deformation has become one of the important indicators to assess the quality of the products.

Plastic parts warp deformation mechanism and reasons are mainly determined by the following three aspects: plastic parts structure , mold design and molding process. Due to the plastic shrinkage on flow direction is bigger than vertical, it makes warping a possible to a plastic part.

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