FAQ for Experts. Answers by Experts.
50
What is the purpose of molecular sieves?
Now that we have dealt with the basics of dosing, drying and conveying, we will turn to more specific aspects of drying plastics in the next few issues. …
49
How can material stress be reduced during conveying?
mo explains how material can be conveyed gently
In issues 35 and 37 we described some different forms of abrasion and signs of wear, as well as listed some possible precautions to reduce wear and abrasion. …
48
What is a diaphragm valve?
mo explains the benefits and the mode of operation of diaphragm valves
When manufacturing medical products, parts with delicate surfaces or electrical components, a completely clean production environment is a basic prerequisite. …
47
How does the material get from the storage bin into the conveying material feedline?
mo describes different types of material feeding
The way the material to be conveyed is fed into a material feedline depends heavily on the type of material and the conveying principle. …
46
How can coupling stations be monitored?
mo describes different concepts for a source-destination mapping
In issue 28 we introduced different multipoint conveying systems, including machine-related conveying systems, which are connected to the different material sources via coupling stations (or tables). …
45
How can disturbances in the vacuum supply be avoided?
mo explains measures to maintain the vacuum
Disturbances in a conveying system can lead to expensive production downtimes. Regular maintenance of the system can help prevent disturbances. …
44
What is to be taken into account with regard to the material discharge?
mo describes various concepts of the material discharge flaps
One task of the material supply is to convey material to the hopper loader on the processing machine. …
43
How is the plastic granulate separated from the conveying air?
mo reveals the secret of the “suspended plastic granule”
In the broadest sense, operation of a hopper loader can be compared with a vacuum cleaner – but with one significant difference: …
42
How can metallic impurities be eliminated?
mo explains the use of metal separators
Even the smallest of metal particles in the melt can cause costly damage. There is an extreme danger for nozzles and hot runner systems as well as for the tools, which means waste as well as loss of production. …
41
How can noise emissions during material handling be reduced?
mo explains: methods for quiet conveying
The noise levels during plastic processing are caused by many different sources. In regards to material handling there are two main sources of noise: …