Search Results for braze

Fig. 23.18 Shear stress as a function of braze thickness for a zinc-brazed beryllium joint showing the specimen load configuration. Source: Marschall 1990 More

Fig. 23.20 Effect of brazing temperature and time on strength and braze joint microstructure of beryllium sheet brazed with BAg-18 alloy. (Microstructures reproduced at approximately 50 wt%). Source: Grant 1979 More

Fig. 7.1 Extensive flow capability of braze filler metal: (a) filler metal wire is placed around outer surface; (b) after brazing, filler metal has melted and flowed to close and seal all gaps. Source: Ref 7.1 More

Fig. 7.4 Principal braze alloy families and their melting ranges. Source: Ref 7.4 , p 7 More

Fig. 1.4 Principal braze alloy families and their melting ranges More

Fig. 5.29 Finite-element analysis prediction of the geometry of a ceramic-metal brazed joint, at its periphery, at the solidus temperature of the filler alloy and on cooling to room temperature More

Fig. 1.3 Principal braze alloy families and their melting ranges More

Fig. 1.19 Spread area of 0.5 mg spheres silver-copper eutectic braze on a nickel substrate in a nitrogen-10% hydrogen atmosphere as a function of holding time at 820 °C (1500 °F). Four distinct stages are observed, demonstrating the complexity of the wetting process. [ Weirauch, Jr More

Fig. 1.28 Aluminum components brazed using a preform of (left) braze and (right) one component roll-clad with brazing alloy. In both cases, the brazing process was fluxless. Because roll-clad braze is generally thinner than a perform, the upper component needs to be smaller in area to achieve More

Fig. 2.25 Thermomechanical working behavior of the Al-20Cu-5Si-2Ni braze, which shows it has favorable characteristics for hot working if heated to between 250 and 370 °C (480 and 700 °F) More

Fig. 2.27 Micrograph of a joint made using Al-12Si braze between components that have been metallized with copper. The joint microstructure comprises silicon in a matrix of the intermetallic compound Al 2 Cu. 420× More

Fig. 3.17 Schematic cross section of a tube-to-plate joint designed such that braze flow will sweep gas and flux out of the joint gap. Formation of an external fillet provides evidence that some braze spreading and wetting has taken place. This design of joint also protects the braze preform More

Fig. 4.1 Metallographic cross section through a 100 μm (4 mils) tri-foil braze preform. It consists of thin foils of a copper-nickel alloy applied by roll cladding to a core of aluminum-silicon alloy. The ratio of the thickness of the foils is adjusted to provide the correct aggregate More

Fig. 4.30 Schematic illustration used to assess the ability of a braze to form void-free joints as a function of the joint thickness at constant joint width More

Fig. 7.1 Effect of heating cycle time on the contact angles of four braze/nonmetal combinations: Al/SiC, Al/Si 3 N 4 , Cu-Ti/Al 2 O 3 , and Ag-Cu-Ti/Si 3 N 4 . The time required to establish a low-contact angle is more than an order of magnitude slower than for braze/metal combinations. More

Fig. 7.34 Yield stress of silver-copper-indium braze, measured on bulk samples as a function of temperature. The braze melting range is 625 °C (1160 °F) to 755 °C (1390 °F). More

Fig. 7.35 Strength of copper-alumina joints made using the Cu/CuO 2 eutectic braze as a function of the thickness of the AlCuO 2 interfacial reaction layer formed. Adapted from Kim and Kim [1992] More

Fig. 11.2 Brazed and braze-welded joints. (a) 0.10% C (0.09C-0.005SI-0.41 Mn, wt%). Brazed using a gas torch and silver solder (49.6Ag-15.0Cu-18.1 Zn-17.3Cd) as a filler metal. Nital. 250×. (b) 0.1% C (0.09C-0.005Si-0.43Mn, wt%). Furnace brazed using copper filler metal. Nital. 250×. (c More

Fig. 11.31 Inductor coil design required by the narrow access to the individual braze joints made in the stator windings More

Fig. 11.40 Pipe braze connections made using a folding inductor coil that surrounds the joint area. Courtesy of Steremat, eldec More