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Why is there a magnifying glass at the bottom of the bottle?
1. Too much material at the bottom of the bottle 2. The pre-blowing time is…
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What if the bottle is blown unevenly?
1. Pre-blowing time is too early 2. Pre-blowing pressure is too high 3. Pre-blowing flow…
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How to adjust the wrinkles in the bottle?
1. The temperature here is too high 2. The pre-blowing time is too late 3….
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Why is the bottle partially whitish?
1. Excessive stretching 2. The temperature here is low 3. The pre-blowing time is too…
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How to adjust the eccentricity of the bottom of the bottle?
1. Check the gap between the stretch rod and the bottom mold, and verify it…
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Stretching ratio of the bottle
Axial stretch ratio: 2.4~2.6 Radial stretch ratio: 4~4.5 Total stretch ratio = axial x radial = 8~12…
