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Silver streaks on the preform surface

In summary, the causes of the "Silver streaks on the preform surface" problem can be attributed to the combined action of multiple factors such as Raw material moisture content exceeding the standard, Melt temperature too high causing decomposition. Solving this problem requires starting from asp...

Material Drying Silver streaks on the preform surface stretch '2079851475616104457 temperature control raw material management surface quality

Preform moisture absorption during storage (re-drying required)

In summary, the causes of the "Preform moisture absorption during storage (re-drying required)" problem can be attributed to the combined action of multiple factors such as High humidity in the PET preform storage environment, Storage time too long. Solving this problem requires starting from asp...

Material Drying Preform moisture absorption during storage (re-drying required) stretch '2079851475616104457 drying treatment

Preform contamination (foreign matter)

In summary, the causes of the "Preform contamination (foreign matter)" problem can be attributed to the combined action of multiple factors such as Unclean injection environment, Impurities in the raw material. Solving this problem requires starting from aspects such as Improve the cleanliness of...

Material Drying Preform contamination (foreign matter) stretch '2079851475616104457 mold design raw material management

Bottle body drop breakage

In summary, the causes of the "Bottle body drop breakage" problem can be attributed to the combined action of multiple factors such as Thin bottle bottom wall, Low strength at the preform weld line. Solving this problem requires starting from aspects such as Increase the bottle bottom wall thickn...

Material Drying Bottle body drop breakage stretch '2079851475616104457 resin characteristics bottle bottom forming welding quality

Bottle body whitening after stretching (stress whitening)

In summary, the causes of the "Bottle body whitening after stretching (stress whitening)" problem can be attributed to the combined action of multiple factors such as Stretching temperature too low, Stretch ratio too large. Solving this problem requires starting from aspects such as Increase the ...

Material Drying Bottle body whitening after stretching (stress whitening) stretch '2079851475616104457 temperature control resin characteristics stretch ratio

High preform haze

In summary, the causes of the "High preform haze" problem can be attributed to the combined action of multiple factors such as Raw material moisture content too high, Mold surface not smooth. Solving this problem requires starting from aspects such as Strictly dry the raw material to a moisture c...

Material Drying High preform haze stretch '2079851475616104457 temperature control mold design raw material management

Insufficient rigidity of the product

In summary, the causes of the "Insufficient rigidity of the product" problem can be attributed to the combined action of multiple factors such as wall thickness too thin and insufficient resin rigidity. Solving this problem requires starting from aspects such as increase the wall thickness and se...

Material Drying Insufficient rigidity of the product injection '2079851475616104457 resin characteristics wall thickness control blow-up ratio

Stringing at the parison die

In summary, the causes of the "Stringing at the parison die" problem can be attributed to the combined action of multiple factors such as die temperature too high and resin melt index too high. Solving this problem requires starting from aspects such as lower the die temperature and select a resi...

Material Drying Stringing at the parison die injection '2079851475616104457 temperature control resin characteristics die adjustment

Low light transmittance of the product

In summary, the causes of the "Low light transmittance of the product" problem can be attributed to the combined action of multiple factors such as moisture content of the raw material on the high side and mold surface not smooth. Solving this problem requires starting from aspects such as strict...

Material Drying Low light transmittance of the product injection '2079851475616104457 mold design raw material management regrind management

Product surface pockmarks

In summary, the causes of the "Product surface pockmarks" problem can be attributed to the combined action of multiple factors such as water vapor or oil contamination in the mold cavity and raw material not clean. Solving this problem requires starting from aspects such as clean the mold cavity ...

Material Drying Product surface pockmarks injection '2079851475616104457 mold design raw material management surface quality

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