4343 brazing aluminum sheet,For brazing aluminum sheet, a more common and suitable filler metal to use is 4047 rather than 4343. 4047 aluminum filler metal is designed specifically for brazing aluminum and offers good fluidity and excellent corrosion resistance.
Clean the aluminum surface: Make sure the surfaces to be brazed are clean and free from any contaminants such as oils, dirt, or oxides. This can be done using a suitable solvent or mechanical cleaning methods.
Preheat the aluminum: Preheating the aluminum sheets prior to brazing can help improve the overall brazing process. This can be done using a torch or an oven, depending on the thickness of the sheets and the brazing setup.
Apply the brazing filler metal: Once the sheets are preheated, apply the 4047 aluminum filler metal to the joint area. The filler metal should melt and flow into the joint, creating a strong bond between the sheets. It is important to note that brazing aluminum requires a flux or a flux-filled brazing rod to promote wetting and prevent oxides from forming.
Heat the joint: Apply heat evenly to the joint area until the filler metal melts and flows completely into the joint. This can be done using a torch or a furnace, depending on the size and complexity of the brazing operation.
Allow the joint to cool: Once the brazing process is complete, allow the joint to cool naturally. Avoid quenching the joint in water or any other cooling medium, as it may lead to thermal stress or cracking.
4343/3003 brazing aluminum sheet seems that you are referring to brazing aluminum sheets of two different alloys, namely 4343 and 3003. Brazing is a process of joining two metal pieces using a filler material that melts at a lower temperature than the base metals.
4343 and 3003 are both aluminum alloys commonly used in brazing applications. The numbers in each alloy's designation represent the composition of the alloy. For example, 4343 contains approximately 43% aluminum, 0.7% silicon, and 56.3% other elements. Similarly, 3003 is composed of around 98.6% aluminum and 1.2% manganese.
When brazing aluminum sheets of different alloys, it's important to ensure compatibility between the filler material and the base metals. There are specific filler alloys designed for brazing aluminum, such as AlSi12 (4047) or AlSi12CuNi (4343), which have a low melting point to match the aluminum's properties and ensure a strong bond.
Mingtai aluminum special in produce 4343/3003 brazing aluminum sheet, welcome to consult.
1. Strong strength
Mingtai Aluminum has factories in Zhengzhou, Gongyi, Xingyang and other places, and offices in Kunshan, Dongguan, Chongqing, South Korea and other regions. China's top 500 private manufacturing enterprises.
Mingtai Aluminum introduced a six-high cold rolling mill from SMS SMS from Germany. Production of ultra-wide and ultra-thick aluminum plates, the width can reach 2650mm, the thickness can reach 500mm, the internal stress is eliminated, and the cutting is not deformed. It is a rare manufacturer in China that can produce ultra-wide and ultra-thick aluminum plates.
Mingtai Aluminum is a large-scale aluminum alloy listed company, specializing in the production of aluminum sheets, aluminum coils, and aluminum foils. The product category covers 1-8 series alloy grades. To undertake large orders, RMB/foreign currency prices can be quoted. Global export.