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Plastic blown film machine die lip repair: the precise melting advantage of Daokedao laser melting
Date:2025-11-05 15:41     Source:daokedao     Browse:44

The lip of the plastic blown film machine mold controls the thickness of the film. Traditional grinding and repair methods can easily cause deformation of the lip, increase the deviation of the film thickness (over ± 0.02mm), and cannot repair small scratches, resulting in holes in the film and a shortened service life of the mold.

The Daokedao laser cladding equipment uses micro beam laser to accurately melt the worn and scratched parts of the lip, with a coating thickness error of ≤± 0.003mm, and the lip flatness is restored to the level of the new mold. Using anti adhesive and wear-resistant alloy powder, the thickness deviation of the film is reduced to ± 0.005mm, and the perforation rate is reduced by 95%.

The service life of the repaired mold head has been extended to 2-3 years, and the film qualification rate has increased by 18%. After a plastic packaging enterprise adopted this technology, the film waste rate has been reduced by 80%, saving more than 250000 yuan in raw material costs annually.


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