Heat exchanger
A heat exchanger and coating technology, which is used in heat exchanger fixing, heat exchange equipment, electrical solid devices, etc., can solve the problems of uncoated materials forming desired, not always obtaining corrosion inhibition effect, etc., to inhibit corrosion and corrosion, corrosion inhibition, pitting inhibition effect
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no. 1 example
[0025] First, a first embodiment of the heat exchanger according to the present invention will be explained. figure 1 is a schematic sectional view showing a first embodiment of the heat exchanger according to the present invention. figure 1 The heat exchanger 10 shown is formed by sequentially stacking the cladding thick plate 1 forming the bottom plate, the inner fins 3 and the cladding thin plate 2 forming the top plate and utilizing the respective hard plates disposed on the inner surfaces of the respective cladding materials 1, 2. The solder layers 12 , 22 are formed by brazing the cladding materials 1 , 2 together in the joining regions 13 , 23 and brazing the inner fins 3 to the surfaces 1 a , 2 a.
[0026] The clad thick plate (bottom plate) 1 and the clad thin plate (top plate) 2 define passages 4 through which cooling water (coolant) flows. The clad thick plate material 1 has a plate shape, and step portions (joint regions) 13 joined to the joint regions 23 of the...
no. 2 example
[0054] Next, a second embodiment of the heat exchanger according to the present invention will be explained. Those structures in the second embodiment that are similar to those of the first embodiment described above will not be described again in detail. The heat exchanger of this second embodiment is constructed in a manner similar to that of the first embodiment except for the following: In the heat exchanger 10 in the second embodiment, the cladding sheet material 2 has The layer of sacrificial material at 22 and the inner fin 3 is cladding material with a core material and a brazing filler metal layer covering only the cladding sheet material side of the core material or both sides of the core material.
[0055] The sacrificial material layer is arranged to cover the surface of the core material 21 on the via 4 side. The sacrificial material layer is formed of an aluminum alloy containing Zn and at least one selected from Si, Fe, Mn, Ti, and Zr, with the balance consisti...
no. 3 example
[0061] Next, a heat exchanger according to a third embodiment will be explained. No description will be provided for those structures in the third embodiment that are similar to those in the above-described first embodiment. figure 2 is a schematic sectional view showing a heat exchanger according to a third embodiment. The heat exchanger 20 in this third embodiment is constructed in a manner similar to that of the first embodiment described above except that the cladding sheet material 2 has a three-layer structure with Braze layer 24 on the opposite side.
[0062] The brazing material layer 24 is arranged so as to cover the surface 2 b of the core material 21 on the side opposite to the via 4 side. The brazing filler metal layer 24 is formed of an aluminum alloy brazing filler metal containing 5.0 to 12.6% by mass of Si, the balance consisting of Al and unavoidable impurities.
[0063] Effects similar to those obtained by the above-described first embodiment can also be ...
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Abstract
Description
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