Some tips on material and color change during molding production
During the injection molding process, color and material switching is common. If the operator does not have sufficient color and material changeover skills, they may waste time and money to the company. So, are there some tips on material and color changing during production?
1. Color change (same material)
Normally, color change of the same material from light to dark is easier than change from dark to light or opaque to transparent. We should to:
1. Close the feed inlet
2. Proceed with several empty shots until the residual is cleaned up
3. Add the new material
4. Pull the screw until the color change is completed
2. Color change (different material)
The color change between different materials needs to consider the viscosity and the machine temperature. By adjusting the temperature, inject new material, and pull the screw back and forth to clean up the original material until the new material and color are stable.
3. Material change
The color change between different materials is based on the material change principle. Considering that the injection temperature and viscosity of different material are different, we briefly introduce the steps of material switch, which can be operated according to the actual material properties.
1. Clean the remaining material from the barrel
2. According to the temperature of the previous raw material, select the appropriate material for further cleaning.
3. Adjust the temperature of the molding machine to the target temperature, and finally clean the barrel with the new material until it is clean.
Skilled color and material change can provide efficiencies and reduce costs. If you have any questions in this field, you can contact us at any time, and we will give you our professional guidance.
