No.10 Removal of the surface tension of the pipe hole drilling

[ Problem Point ]

The hole crack happened and very troubled.

[ ⇒Kaizen Point ]

The pipe preheated with the Halogen Point Heater.
The surface tensity was removed
because it heated at the suitable temperature and the crack disappeared.

Related page:

No.16 Brazing of fuel cell vehicles pipe No.28 Infrared heat caulking of resin boss No.54 Drying of Drilled Hole No.55 Internal drying of pipe products No.8 Dryness of print No.13 Forming of the multilayer polymer film No.14 Plastic resin welding No.34 Borosilicate glass tube melting