It is very important for Bucket Mould to master the temperature. This is because the temperature has a significant impact on the plastic extrusion and the function of the parison. Increasing the temperature of the extruder can reduce the viscosity of the melt, the fluidity of the melt, reduce the power consumption and the speed of the forward screw, without affecting the plastic barrel. Mixing and plasticizing effect. To achieve this goal, we can use an electronic temperature controller to stabilize the process temperature and significantly save energy.
Humidity affects the monotonous speed of plastic drum manufacturers, which must be better understood. Therefore, the relative humidity of plastic barrels is also an important factor affecting product quality. When the relative humidity in the barrel is low, the water vapor pressure difference between the surface and the monotonic machine is large, and the monotonic speed is very fast, and vice versa.
Check whether the product manufacturer has a relevant production license, such as a dangerous goods packaging product license. Check the raw materials used to produce plastic drums. It is best to use new materials. Check carefully and understand whether the mechanical strength, heat resistance, solvent resistance and other functional indicators of the plastic barrel meet the relevant specifications. Please pay attention to check the appearance quality of the product, including color, completeness, gloss, etc. You can tap the plastic barrel to listen to the sound, and you can wire it to see the elongation of the product.
If you use plastic buckets to hold water, the release of toxic substances will endanger your health. Look at the color of the barrel. The color must be bright and free of chromatic aberration. Choose a transparent color, and then choose a beautiful color. Do not choose black, because black is easy to add auxiliary materials and recyclable materials, but it is difficult to distinguish. Take a look at the appearance of the barrel. Touch the edges with your hands, there is no obvious drape, and all corners are chamfered, and will not scratch your hands. Check whether the rubber surface is free of impurities, black spots, transparent appearance, lubrication, and smooth finish.
The impact on the expansion rate of plastic barrels does not necessarily depend on the plastic structure. For example, the expansion rate of thick-walled plastic parts is greater than that of thin-walled plastic parts (but most 1mm thin-walled plastic parts have an expansion rate greater than 2mm due to the increased resistance of the melt in the melt) mold cavity);
The expansion rate of plastic products with inserts is lower than that of plastic products without inserts; the expansion rate of plastic parts with messy shapes is lower than that of plastic parts with messy shapes. The expansion rate in the height direction of the plastic part is generally smaller than the expansion rate in the degree direction. The swelling rate of the elongated plastic part in the length direction is small. The specification in the longitudinal direction of the plastic part is smaller than the specification in the thickness direction. The expansion rate of the inner hole is large, and the shape expansion rate is small.
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