This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Study of the Compatibility of the CAB Flux and Commercial Cooling Fluids
Technical Paper
2007-04-0009
Sector:
Language:
English
Abstract
Cost reduction and component design improvement to increase the
performance and durability of the exchangers has led the automotive
industry to switch from electro-welded to folded tube technology.
Due to the brazing of the tube, the amount of flux in contact with
the coolant has increased. Process improvements have been carried
out in order to decrease drastically the amount of flux used.
In this study, the interaction between the residual flux and the
coolant was studied in order to assess the impact on the
performance of the coolant, especially for corrosion
protection.
Several experiments were set up in order to characterize the
properties of three types of coolant with organic and mineral
inhibitors containing flux used in controlled atmosphere brazing.
The impact of coolant ageing was also studied by measuring the
properties difference between new and worn coolant.