Cu based brazing filler metal
Cu based brazing filler metal powder，It can be used for brazing of copper copper alloy, copper aluminum, copper stainless steel, copper graphite, copper tungsten and other materials.
Copper based solders are widely used in electrical, automotive, chemical, electronic packaging and other industries because of their low melting point, good fluidity and excellent conductivity.
The copper based solder series products produced by our company mainly include cup5, cup6, cup7, cup8, cupsn-7-3, cupsn-7-7 and so on. The specific brand and composition are as follows:
Product Description:
1. The maximum impurity content (wt%) of solder in the table is as follows: Bi 0.030, Al 0.01, Pb 0.025, Zn 0.05, Zn + CD 0.05; Maximum total impurities ≤ 0.25;
2. Most solders can obtain satisfactory fluidity only when they are higher than the liquidus temperature, and most copper phosphorus solders can fully flow when they are lower than a certain temperature of the liquidus;
3. The brand and composition of the materials in the table comply with GB / t6418-2008. Other copper based solder powders not listed in this table can also be produced by our company according to the requirements of users;
4. When ordering, please specify the requirements for particle size range.
Nickel-based Filler Metal
Nickel-based Filler Metal powder，It is a kind of brazing connection material applied to high-temperature parts, with excellent wettability, fluidity and weldability. Nickel based solder can be brazed at lower temperature or slightly higher than the brazing temperature. The brazing temperature range is consistent with the heat treatment system of stainless steel and superalloy. Therefore, it is suitable for brazing stainless steel, heat-resistant steel and superalloy components working at high temperature, such as diffuser, diffusion nozzle seat, gas turbine, stationary ring, honeycomb sealing ring, water heater, heat exchanger, piston electrode Static pressure pipe, etc. Nickel based solder can also be used in tube bundle combustion chambers of rocket engines, turbines, ducts and fuel rod cages of atomic reactors.
BNi82CrSiBFe(BNi-2)，It is a widely used nickel base solder with good fluidity, strong wettability, low melting temperature, high joint strength, good oxidation resistance and corrosion resistance. It is widely used in the welding of stainless steel and diamond.
BN71CrSi(BNi-5) has little corrosion to the base metal and has good high temperature strength and oxidation resistance. It is mainly used for brazing superalloys.
BNi89P(BNi-6) has excellent fluidity, lax requirements for shielding gas and minimal corrosion to most nickel based and iron-based metals. It can be used for brazing stainless steel, copper, etc. it is a common solder in the atomic energy industry. Its disadvantage is its brittleness and is mostly used for static load joints.
BNi76CrP(BNi-7) has good high temperature strength and oxidation resistance. It is mainly used for brazing thinner workpieces. It is widely used in the welding of copper and stainless steel, especially in the nuclear field, vacuum furnace or mesh belt furnace.
The specific brand and composition are shown in the table below:
Aluminium base solder
