Common Problems And Solutions in Ampoule Filling And Sealing

Common problems and solutions in ampoule filling and sealing

Appearance quality problems of ampoules after potting

3 Bubble head After melting and sealing, the top of the ampoule forms a large bubble, which is easy to break. Causes: The drawing flame is too strong; the tempering time of the ampoule after drawing is too long; the bottom of the drawing clip is slightly lower than the horizontal center line of the flame, although it can be melted, it is easy to form small bubble heads. Solution: reduce the strength of the drawing flame; shorten the tempering time of the ampoule after drawing; adjust the distance between the drawing clip and the horizontal center line of the flame to the normal distance.

4 Flat head The top of the ampoule forms a depression after being melted and sealed. Cause: The ampoule first forms a bubble head and then cools and shrinks during the wire drawing process; the heating flame is too small to dry some tiny water vapor on the wall of the ampoule. These low-temperature water vapor causes the newly formed top arc of the ampoule to be shrunk by cold shrinkage. head. Solution: Treat according to the method to solve the bubble head; strengthen the heating flame, so that the neck of the ampoule is fully heated, so that the tiny water vapor evaporates as soon as possible. 1.5 Broken end means that the top of the ampoule is not sealed. Causes: mechanical reasons; excessive foam head; excessive deflated head. Solution: adjust the distance between the wire drawing clip and the horizontal center line of the flame to the normal distance; deal with it according to the method of bubble head and flat head.