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Shaanxi Ruisen Metallic Composite Material Co., Ltd
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Explosive welding is a solid - state welding process that is used to join different metals. In the context of copper and aluminum sheet busbars for electrical applications, it offers several advantages. Copper is an excellent conductor with good thermal conductivity and is widely used in electrical systems. Aluminum is also a good conductor, lighter in weight than copper, and more cost - effective in many cases. Joining these two metals can provide a combination of their beneficial properties for busbar applications.
2. The Principle of Explosive Welding
High - speed Impact: The basic principle of explosive welding involves the use of explosive energy to accelerate one of the metal sheets (usually the flyer plate, which could be copper or aluminum depending on the setup) towards the other (the target or base plate). When the flyer plate impacts the base plate at a very high speed (several hundred to a few thousand meters per second), a jet is formed at the interface due to the intense pressure.
Formation of Metallurgical Bond: This jet clears the oxide layers and contaminants present on the surfaces of the metals. The high - pressure and high - velocity impact cause plastic deformation of the metals at the interface, and a metallurgical bond is formed as the atoms of the two metals come into close contact and interact. For example, in the case of copper - aluminum welding, the jet action helps to overcome the natural oxide layer on aluminum (aluminum oxide is a very stable and insulating layer that can impede a good electrical connection if not removed).
3. Advantages for Electrical Busbar Applications
Good Electrical Conductivity: The joint formed through explosive welding can have relatively low electrical resistance. This is crucial for busbars as they are used to conduct large amounts of electrical current. The combination of copper and aluminum allows for efficient current - carrying capabilities while potentially reducing costs compared to an all - copper busbar system.
Mechanical Strength: The welded joint has good mechanical strength, which is important to withstand the mechanical stresses that busbars may experience during installation, operation (due to thermal expansion and contraction, vibration, etc.). For example, in an industrial setting where heavy electrical equipment is connected to the busbar, the joint needs to be strong enough to handle the forces without fracturing or losing its electrical conductivity.
Corrosion Resistance: Copper and aluminum have different corrosion characteristics. When properly welded, the interface can have improved corrosion resistance. The aluminum - rich regions can form a protective oxide layer that can help prevent further corrosion, and the copper part can also benefit from the overall protection mechanism.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
1,000,000-12,000,000
Employee Number:
250~300
Ecer Certification：
Verified Supplier
Shaanxi Ruisen Metallic Composite Material Co., Ltd (Xian Ruisen Clad Metal Material Co., Ltd., in 1997) was established in 2018, with a registered capital of 100 million yuan, covering an area of 84 acres, including 36,000 square meters of workshops.With a number of patented technologies, is s... Shaanxi Ruisen Metallic Composite Material Co., Ltd (Xian Ruisen Clad Metal Material Co., Ltd., in 1997) was established in 2018, with a registered capital of 100 million yuan, covering an area of 84 acres, including 36,000 square meters of workshops.With a number of patented technologies, is s...
