The demoulding of the product needs to be considered in the design of the sealing strip: the design of the sealing strip must consider how the product will be demolded in the mold, and the demoulding direction should be open during the product design process to avoid undercuts. If the product design has an undercut, the mold parts will inevitably be forced off, which greatly increases the risk of product cracking and deformation, and the product rejection rate is high.
The design of the sealing strip needs to be simplified as much as possible: when designing the product of the sealing strip, the design should be simplified as much as possible without affecting the functionality and appearance of the product, the mold structure should be simplified, and the stability and production efficiency of product production should be improved.
Reasonable pre-deformation treatment is sometimes required in the design of sealing strips: in order to ensure the technological feasibility of sealing strip products, pre-deformation treatment is sometimes added to product design to make product production possible. For some unavoidable deformations during the demoulding process, compensation should be made in the product design stage, so that the products meet the final use requirements.