* * crystal solder can be used to weld titanium alloys.
The melting point of * * * crystal solder is 183 degrees. When the content of tin is higher than 63%, the melting temperature increases and the strength decreases. When the content of tin is less than 1%, the welding strength is poor, the joint is brittle, and the lubricating ability of solder becomes poor.
The most ideal solder is * * * crystal solder. At the temperature of * * * crystal, the solder directly changes from solid to liquid, without going through semi-liquid state. The melting temperature of * * * crystal solder is lower than that of non-* * crystal solder, which reduces the chance of damaged components. At the same time, because * * * crystal solder directly changes from liquid to solid, it also reduces the phenomenon of virtual welding, so *.
Extended information
The density of titanium alloys is generally about 4.51g/ cm3, which is only 6% of that of steel. The density of pure titanium is close to that of ordinary steel, and some high-strength titanium alloys exceed the strength of many alloy structural steels.
Therefore, the specific strength (strength/density) of titanium alloy is much higher than other metal structural materials, and parts with high unit strength, good rigidity and light weight can be made. Aircraft engine components, skeleton, skin, fasteners and landing gear are all made of titanium alloy.
Baidu encyclopedia-* * crystal solder