In the mold building process for plastic bottle cap molds, several important factors need to be considered:

Firstly, the material used for the mold does not require post-processing due to the softness of plastic, lack of specific hardness requirements, and the potential for mold deformation during heat treatment.
 
Secondly, the cooling system (flow channels) is related to the mold size, shape, plastic properties, retention time, and other factors.
 
Additionally, the roughness level inside the mold cavity should be of “mirror grade” to facilitate easy ejection of the product, as high roughness would require excessive force and potentially cause damage during ejection.
 
Moreover, the mold needs to have sufficient rigidity to avoid deformation during mold closure and pressure maintenance, which could lead to “flash”.
 
The application of plastic bottle cap molds is widespread, and they are required to have a certain level of flexibility and operate continuously under full load for extended periods.