I was asked this question during a recent on-site visit… QA Manager What is an easy was to explain tolerances to new employees? My Response Focus on the fact that tolerances are commonly expressed in a way which can be easily broken up into simple math equations. Dimension: 1.00 ± 0.01 Upper Limit: 1.00 + 0.01 = 1.01 Lower […]
Category Archives
Plastics Technology
PBT in Hot Runner Systems…
I was asked this question by a molder who was having trouble balancing a hot runner system… Bob We have this new mold which is running 16 cavities in PBT. Usually we can balance the mold using the drop temperatures, but that does not seem to work on this mold. Any thoughts? My Response Essentially, semi-crystalline polymers […]
Documentation Takes Too Long…
I was in a discussion recently with a GM and he had this problem… Manager My technicians are not willing to take the time to document their changes. They claim it takes too long? My Response The issue here is not time, but education. If your employees are not taking time to document, it is likely that […]
The Best Way to Process…
I was recently at a molding facility during a training implementation was in need of some training due to a lack of fundamentals among the employees… Company President What is the best way to process, and why don’t we just have everybody process that way starting tomorrow? My Response I told her that there were ways that there are many […]
Melt Temperature and Density…
I received this excellent question last week… Saeed In one of your videos, you state that higher melt temperatures will increase part weight. To my understanding, a less viscous material is pumped in the cavity with a relative ease thus increasing the part weight. Could you please guide me as to whether or not a decrease in density negates the above? My Response You are […]