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Kenplas Forum ==> Blow Molding (Machine) ==> Bottle Wall Thickness not Uniform (Radial)
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bottle wall thickness is not un
iform,
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We are blowing jar in our auto stretch blow machine of Sidel make and facing the uneven wall thickness on the sides . The Jar is rectangular in shape and the near the bottom the strength is ok. Please give us the probable causes
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on the bottel both side wall parting line is coming.
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check strength and lamps position when preheating of preform in blow molding , also check stretch and preblow timing .
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1. Preform wall thickness not uniform;
2. Poor air venting of blow mold;
3. Check rotation of preforms while heating.
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This forum published since July 03, 2002.
Renewed on June 22, 2005. |
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