Patent ID: 9630281
Date: 2017-04-25
CPC Classifications: B23K,B23P,Y10T

Claim:
1. A flux shield to prevent flux introduction into a plurality of tubes of a heat exchanger core during a flux application process, wherein the flux shield comprises a region arranged over an outer edge of the heat exchanger core, wherein said region comprises a roof-like structure formed over a plurality of ends of the plurality of tubes without capping said tubes, wherein the flux shield comprises a first part and a second part, wherein the first part and the second part comprise a c-shaped cross-section, and wherein at least one of the first part or the second part comprises an end-section which comprises a hook-shaped section, wherein the first part comprises a guidance element for the second part, wherein an inner surface of the first part is in laminar contact with an outer surface of the second part, wherein the inner surface of the first part forms a sliding surface for the outer surface of the second part and vice versa, wherein the second part comprises a region which is inserted into the first part along an insertion-direction, wherein the first part and the second part are not fixedly attached to each other allowing translational movement relative to each other along the insertion-direction.