|Material:||Zinc- Aluminum Alloy||Feature:||Excellent Ductility, Good Sew Filling-ability|
|Usages:||Copper-aluminum Welding||Wire Diameter:||1.6mm , 1.8mm|
|Application:||Refrigeration/Automobile Inndustry||Products Model:||QX0215 QX22 Q20A Q200 Q22|
|Certification:||IOS 9001-2008 ROHS SGS||Flux Content:||13-25%|
flux core welding wire,
metal cored welding wire
Al-Base Solder Flux Core Aluminum Welding Solder Copper To Aluminum
1, transformers and reactors' aluminum and copper joints' copper and aluminum foil's welding
2, refrigerator and air conditioning's condenser / evaporator's aluminum pipe and brass's welding;
3, radiators, motors, batteries, household appliances and other products' copper and aluminum wire's welding.
Products name: Copper aluminum flux cored wire
Aluminium to copper brazing rods diameter: 2.00mm*3m
|Product name||Model||Composition||Melting Temperature(℃)||Application|
|Brazing Alloy||Brazing Flux|
|QX0215||Zn, Al, other||KcsAlF4 15%-20%||420-480||Suitable for brazing copper with aluminum, aluminum with aluminum, aluminum with steel, aluminum with stainless steels, etc.|
|QX22||Zn, Al, other|
|Q20A||Zn, Al, other|
|Cu-Al Brazing Wire||Q200||Zn, Al, other||-----||380-420||Together with flux, suitable for brazing copper with aluminum, aluminum with steel, aluminum with stainless steels, etc.|
|Q220||Zn, Al, other||420-480|
|Cu-Al Brazing Paste||QXFU312C||KcsAlF4||380-420||To be matched with our Q series alloys|
The copper-aluminum welding wire has simple operation process , convenient use and strong fluidity . It can be easily welded by the most common flame brazing ( oxygen acetylene , oxygen propane or oxygen liquefied petroleum gas ) without special welding equipment and workers .
Xinxiang Qixing Welding Material Co., Ltd, started in the 1980’s our company is located in the middle of China, We always promise" best quality, best service”! Keep strive to make”QIXING”brand brazing materials to be the most welcomed products in China and all over the world!
We mainly produce “Qixing” brand of copper-based, sliver-based, aluminum-based brazing materials, and all of our products meet SGS and RoHS directive requirements.
Aluminum to copper solder is one of our hot-selling products . The excellent product quality is recognized by customers . we cooperate with many famous companies , such as Midea , Gree , LG , Hisense , Haier , Aux and so on . Now our production capacity is 450tons/month for brazing rod , and for aluminum to copper solder refrigeration alloys , that is about 220tons / month . In our field, now we are the No.1 in China .
Proper technique is essential when brazing copper to aluminum
Although it requires practice, brazing of aluminum to copper can be successful using a tightly controlled process. The most appropriate technique to use when joining these two base metals is flame brazing, using a low-temperature melting flux and brazing alloy. While the process of brazing aluminum to copper is similar in nature to the process of brazing aluminum to aluminum, certain steps must be taken to insure a quality braze joint.
One of the most common braze failure issues when joining aluminum to copper is related to heating the joint. If improper technique is used and heating takes too long, excessive diffusion will occur at the braze joint. Excessive time at the brazing temperature may also compromise corrosion resistance due to metallurgical changes. It is important to use good braze technique, applying heat adjacent to the joint rather than on the joint itself, allowing heat transfer by conduction, and removing the flame as soon as the filler metal reaches a liquidus state.
Equally important to keep in mind when brazing aluminum to copper is the different melting points of each of the base metals. While copper melts at 1984˚, aluminum melts at 1220˚ and as such, flame should be directed onto the copper. However, once heat transfer from the copper to aluminum allows the aluminum to reach 1220˚, the aluminum will very quickly reach the flow temperature. This process is complicated by the continued absorption of heat by the copper and its subsequent transfer to the aluminum; therefore it is recommended that the flame be removed from the copper as soon as the aluminum begins to melt. Overheating of the aluminum will cause alteration of its metallurgical properties.
Contact Person: Ann