I wish there was an induction seal for Elmer’s rubber cement found in the large metal containers; not the small plastic containers with a brush stuck to the cap.
QUOTE ( @ 2009-06-01, 09:58:00)
How would you seal to a surface without torque?
Packagers have two options for sealing containers without application torque on the liner. The first is a pressure-belt system which utilizes an induction sealing head integrated with a belt to provide downward pressure on caps without torque, or pressure directly onto liners. For containers without caps Enercon offers a variety of contact induction sealing configurations ranging from manual systems, to indexing and rotary for high speed applications.
QUOTE ( @ 2009-06-01, 09:56:40)
How likely would a seal problem be, when you insert the seals by hand?
It is important the foil liner has uniform, downward pressure around the entire land area of the container. Proper installation and positioning of the foil is key, ensuring no particles, residue, etc. contaminate the surfaces. Inserting material by hand may also cause excessive wrinkling of the foil which can create sealing problems.
QUOTE ( @ 2009-06-01, 09:51:47)
Is the vacuum applied to the inside of the test container (bottle, etc), drawing water into the container through leaks or is the vacuum applied to the water-filled tank? Thanks.
The vacuum test shown in our presentation and used in the Enercon lab pulls a vacuum on the water filled tank. If there are any leaks air bubbles releasing from the sealed container will appear. In the case of a weak seal the force of the vacuum will cause the seal to break away from the container.
QUOTE ( @ 2009-06-01, 10:00:31)
Can you comment on sealers that ”self adjust” the sealing output based on bottle height variation? Is this really necessary when most bottles don\’t vary more than 0.050\”?
We are not familiar with a sealer that automatically adjusts output based on differences in bottle height. We do have an option called Variable Sealing Control which automatically adjusts output power based on changes in line speed to consistent sealing.
