Acceptance Standards for Packaging Bottle Moulds

2021-12-07

Shaped product appearance, size, fit

1
Defects on the product surface are not allowed: lack of material, burnt, top white, white lines, peaks, blistering, whitening (or cracking, breaking), baking, and wrinkles.

2
Weld mark: Generally, the length of circular perforated weld mark is not more than 5mm, and the length of special-shaped perforated weld mark is less than 15mm. The weld mark strength can pass the functional safety test.

3
Shrinkage: Shrinkage is not allowed in obvious areas of the appearance, and slight shrinkage is allowed in unobvious areas (no dents in the hand).

4
Generally, the flatness of small products is less than 0.3mm. If there are assembly requirements, the assembly requirements must be guaranteed.

5
There should be no air lines or material flowers in the obvious appearance, and the product should generally not have air bubbles.

6
The geometric shape, size and accuracy of the product should meet the requirements of the official and effective mold drawing (or 3D file). The product tolerance should be based on the tolerance principle. The shaft size tolerance is a negative tolerance, and the hole size tolerance is a positive tolerance. Customers have requirements. As required.

7
Product wall thickness: The product wall thickness is generally required to be an average wall thickness, and the non-average wall thickness should meet the requirements of the drawing, and the tolerance should be -0.1mm according to the characteristics of the mold.

8
Product coordination: Matching between surface shell and bottom shell-the surface misalignment is less than 0.1mm, and there should be no scratching. The holes, shafts and surfaces with matching requirements must ensure the matching interval and use requirements.

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