The temperature we are keeping is 215 C. Trip point + - 7.
While running, the system maintain dead on 215. If the PI&D is set correct, it goes up and down a couple degrees before stabilizing.
The variation can be as high as 12-15 deg up and 10 deg down.
All the tools we have show variation when...
On our equipment, we have a tool that closes on a film and welds the 2 parts on PP film. Like closing the top (or bottom) of a cereal bag, potatoe chips, Doritos, etc.
We are having problems maintaning the temperature on this tool when the machine stops and starts. On some of the tool, the...
It makes sense, but it doesn’t explain why a conveyor belt “walks” to the tighter side. When adjusting conveyor belt alignment, we need to tighten the side we want the belt to move to (or vice-versa).
I imagined the convex roller as well as conveyor belts used the same theory. “The belt seeks...
I'm looking for an old theory that explains why belts on a belt sander stays on the center of the convex roller. The same theory applies to flat belt on a crowned pulley (on old farm equipment), some paper mill applications, vacuum cleaned belts etc.
Does anyone know where I can find the theory...
