Resin Dispensing - Dispensing

Dispensing

To provide for best casting, the part and the dispensing unit have to be moved relatively to each other. In principle there are two ways:

• Movement of the dispensing unit
• Movement of the part

For many applications, dispensing can only be done successfully in vacuum. This is true especially for parts with a large undercut, i.e. soaking of transformation coils. In such cases bubble free dispensing can only be obtained in vacuum. For this purpose dispensing systems are equipped with vacuum chambers. To shorten cycle times there can be an airlock at the entrance and one at the exit. In vacuum dispensing only systems where the parts are moving and the dispenser remains in place can be built reasonably.

For the production of series, dispensing systems with multifold metering heads can be used. At this time (2006) there are systems running capable to do up to thirty dispensing acts simultaneously.