ugg italia The temperature of aluminum brazing _15

,[link widoczny dla zalogowanych]
The temperature of aluminum brazing

Can be represented by three functions, namely, ① is complex function of oxide film removing head function @ @ surface-active function. Play a regulatory function by re-melting, causing the air to prevent oxidation, oxidative function of film removed from the destruction of the base metal and filler metal between the surface of the oxide film surface contact area between the two start to make effect. Only these two functions is not enough, we must also look forward to the first three kinds of surfactant function. Therefore, reducing the molten solder and the interfacial tension between the base metal and improve the wetting results with La, select the filler and base metal heat carrier from the role of both substances, in such a composition can. Aluminum brazing flux played a good surfactant function substances ZnCI: and CdC! Z, these substances can make the base metal and filler metal reduction, the precipitation of metal Zn and Cd metal thermal effect are contained in the sky at the same time, The base material also shows excellent wetting and flow of geese. Will do a 63 - the flux used in soldering temperature companion,[link widoczny dla zalogowanych], such as used in the A1-Ge-Ag, or A1 in a Cu-Zn, and solder with a high anchor tie may be appropriate to reduce the melting point despite the benefits, but as in A1-Zn system like Ya see, should be considered with the Zn solder up to 95 and the combination is appropriate. ZnC1 only to show the wetting state of the base metal, molten solder Ding tension of its own, only spherical medium exists,[link widoczny dla zalogowanych], capillary action can not be brazed. Although machine-alkaline land stimulus amplitude spherical liquid solder to make contact with the base metal to force, but in fact this is not pulp used in furnace brazing, or the need to change the rate of flux from the root of the active agent. About 700 +0 electrochemical chloride salt following the order; Ba, Sr, KLi, Na, CaMg, Be, Mn \Cu, Bi, Sb the above order is to restore the right of the left side of the metal substitution of metal ions, the metal precipitation, with Zn system solder for brazing, if required flux has the effect of precipitation of metal elements, it is necessary to select right in the Zn metal salts. According to the author's experimental snCl best, the more bits to the right of the precipitation of metal chlorides, while also, but the reaction is too fast. Flux completely black. Moreover, Sn and Al, low solubility, and thus want to be with Cui solvent amount of ZnC1:. Several experimental results show that the flux in the following composition on the A1-Zn eutectic solder showed good results. LiCl-50, KCl_40, ZnC1: ~ 3, SnCl ~ 3, LiF-4 (melting point 360 ℃) in the I12-chip (2024) T-shaped specimen brazing experiment, this flux and A-Zn solder system Taiwan with time. Solder flow up to 200 mm or less reached its high-temperature brazing brazing bang, and its general tone and the same base material, is slightly (on the next page 36) now see a little gray. 3 examples and concluding remarks for the implementation of the various temperature brazing filler metal and flux, although synthetically made on the performance and economics discussion, but as the case may recommend the following note attached. Solder from the Zn (95) sr (0 -) L wire diameter of a 1.5.2.0ram, melting point 385 ℃. rLiC150, KC140LiF4. SnCl23, flux 4ZnCL3L melting point 360 \± 3 ℃, the heating zone temperature is slightly higher than the solder, regulation in 415 ℃, nitrogen filled furnace for use. In furnace brazing them into the sample, the above flux into a paste with acetone,[link widoczny dla zalogowanych], placed along the filamentous brazing welding wire solder. Sample in the furnace hot zone remains to 9 minutes, the heating zone for 6 minutes, remove the water clean. Although traditionally brazed aluminum chloride flux were available, but environmental purification, started for the purpose of improving the efficiency of use of vacuum furnace, after the vacuum method to compensate for the shortage, but also make extensive use of the non-melting flux / inert atmosphere method. However, a higher intensity of the use of aluminum as the goal, also contains chloride flux included, want to make new exploration. Want at a lower temperature brazing flux must be re-evaluated the use of chlorine. References (omitted) is the round of translated (Japan), \No6. p3le ~ 32l, Chen hundred gold school. 々. 々. I \々. 々々 mouth. 々. 々. 々. 々. Boast. 々. 々. 々. 々. 々. 々. 々. 4 々々. . - Into the low, the effect is good,[link widoczny dla zalogowanych], more appropriate sets of conditions. (5) N - the atmosphere is not only applicable to units of propylene in carbon steel, (4) a propylene atmosphere, easy to control ammonia and regulation, capacity and suitable for low-carbon steel, low carbon and high-Wo Yi Taiwan magic automatic control by computer steel. References (omitted) a 64 -

相关的主题文章：

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]

The post has been approved 0 times