One great way to get your employees excited about energy reduction is to provide a method of monitoring energy consumption. If your employees can actually see that a change, such as increasing 1st stage injection speed or reducing 2nd stage packing time, actually reduces the power consumption it can become a very empowering experience. There are many […]
Category Archives
Plastics Technology
Cooling Time or Temperature?
You may still have to make a few more adjustments to the cooling time and coolant temperature to get the optimal settings, but this will get you close in a very short period of time. Question: Which do I work on setting first, cooling time or mold temperature when performing initial tool trials? My Response: The most […]
Calculating Screw Speed
The following is a formula which can be used to quickly determine the screw speed during setup. This is based on consuming 80% of the cooling time for shot recovery. Question: Could you provide me with a quick formula my setup techs can use to estimate the final screw speed? My Response: This is a quick […]
1st Stage with Multi-Cavity
The intent of the short-shot approach is to help ensure that all cavities are short during 1st stage fill. This ensures none of the cavities are packed during fill and therefore receive the same amount of packing in all cavities during 2nd stage. Question: How do I determine 90-95% fill for a multi-cavity tools? I’m not looking for […]
Part Sticking and Mold Temperature
The documentation of coolant temperature both entering and leaving the mold is critical to good documentation. This reduces the time required to get to first piece approval during mold start-ups. Troubleshooting will also become much easier, faster, and efficient. Question: We encountered part sticking after the mold ran a while. In this part, this situation […]