C. calculating
traction:
traction calculation formula:
F = Pacos (f - tanα) / (1 + f sinα1 cosα1)
Of which:
- p: shrinkage stress of plastic products. Plastic products are cooled in a mold and cooled to 19.6 MPa 39.2 MPa outer mold
- A: surface area of the core enclosed by plastic products (m2)
- α1: mold drainage angle
- F: traction (N) . Oblique bending of the key forces: Fb = F / cos α (where: α is the angle of the bottom oblique)
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