The designer must solve the problem, otherwise it will affect the mold. The mouth should be balanced; (2) choose the correct gate shape and position, depending on the shape of the mold. When the precision mold is formed, the shrinkage change rate is required to be small, and the expected shrinkage rate and the actual shrinkage rate are as much as possible, but in the actual process, it is generally difficult to do, and the mold is usually corrected after the test. 2..
The key is to ensure that the actual die size is within the dimensional tolerances required by the drawings. In order to better correct the mold, when designing the size of the concave part of the plastic mold, the shrinkage rate should be as small as possible, and the size of the convex part should be taken as the maximum value.How to prevent deformation of plastic mold(1) Mold size accuracy Plastic mould https://www.pet-mould.com Mold size accuracy should be appropriate, the mold design, fabrication and molding process should be considered according to the drawings. Therefore, the preventive measures we can take are as follows: (1) The number of gates should be appropriate.
Prevent demoulding from deformation If the shrinkage of the material is relatively small, it should be noted that when the molding pressure is high, the plastic part is likely to remain in the cavity. In addition, the mold is designed to be demolded without deformation of the plastic part to prevent deformation. 3. The main cause is shrinkage unevenness and internal stress in the mold
The key is to ensure that the actual die size is within the dimensional tolerances required by the drawings. In order to better correct the mold, when designing the size of the concave part of the plastic mold, the shrinkage rate should be as small as possible, and the size of the convex part should be taken as the maximum value.How to prevent deformation of plastic mold(1) Mold size accuracy Plastic mould https://www.pet-mould.com Mold size accuracy should be appropriate, the mold design, fabrication and molding process should be considered according to the drawings. Therefore, the preventive measures we can take are as follows: (1) The number of gates should be appropriate.
Prevent demoulding from deformation If the shrinkage of the material is relatively small, it should be noted that when the molding pressure is high, the plastic part is likely to remain in the cavity. In addition, the mold is designed to be demolded without deformation of the plastic part to prevent deformation. 3. The main cause is shrinkage unevenness and internal stress in the mold
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