China's lithium-ion battery materials industry is entering a period of rapid development. Electric vehicles are the future development direction of the automotive industry. The industry expects that China's lithium-ion battery materials industry targets exceed South Korea's market share.
According to the global market research company "B3" on the 21st, in 2015, the cumulative output of the lithium-ion battery industry for mobile phones and IT reached 5.072 billion cells, an increase of 7.8% over the previous year (4.76 billion cells).
With the popularity of electric buses and battery backup, the lithium-ion battery industry is undoubtedly a new driving force in the forefront of new energy in the global market. It is reported that the lithium ion battery is a secondary battery (rechargeable battery), which mainly relies on lithium ions moving between the positive electrode and the negative electrode to work. The battery is generally made of a material containing lithium as an electrode, and is a representative of modern high-performance batteries.
According to the company, in 2015, South Korea's Samsung SDI market share in the lithium-ion battery industry was 25.2%, and the output reached 1.278 billion cells, ranking first in the world. LG Chem (8.6 billion cells) has a market share of 17% in the lithium-ion battery industry, ranking second.
Subsequently, it was Japan's Matsushita, ranking third with a share of 14.7% (7.44 billion cells), China's ATL ranked fourth with a market share of 11.4% (580 million cells), and Japan's Sony ranked fifth with 8.5% (433 million cells). .
According to industry analysis, China has lagged behind South Korea and Japan in terms of IT technologies such as batteries, TVs, TV screens, mobile phones, and semiconductors. However, China's lithium-ion battery industry has surpassed Japan in recent days and is threatening South Korea. China's lithium carbonate prices continue to rise, and the related lithium-ion battery industry is once again strong.
Cobalt-based alloy powders are commonly used in plasma transfer arc welding (PTAW) due to their excellent high-temperature properties and resistance to wear and corrosion. These alloys are typically composed of cobalt as the base metal, with various alloying elements such as chromium, tungsten, nickel, and carbon added to enhance specific properties.
The use of cobalt-based alloy powders in PTAW offers several advantages, including:
1. High-temperature strength: Cobalt-based alloys exhibit excellent strength and resistance to deformation at elevated temperatures, making them suitable for welding applications that involve high heat.
2. Wear resistance: These alloys have a high hardness and resistance to wear, making them ideal for welding applications where the welded parts are subjected to abrasive or erosive conditions.
3. Corrosion resistance: Cobalt-based alloys offer good resistance to corrosion, making them suitable for welding applications in aggressive environments, such as those involving chemicals or saltwater.
4. Thermal conductivity: Cobalt-based alloys have good thermal conductivity, allowing for efficient heat transfer during welding and reducing the risk of heat-affected zone (HAZ) defects.
5. Compatibility with other materials: Cobalt-based alloys can be easily welded to a wide range of base metals, including stainless steels, nickel alloys, and other cobalt-based alloys, providing versatility in welding applications.
To use cobalt-based alloy powders for PTAW, the powder is typically fed into the plasma arc using a powder feeder. The powder is then melted by the high-temperature plasma arc and deposited onto the workpiece, forming a weld bead. The specific welding parameters, such as arc current, travel speed, and powder feed rate, will depend on the specific alloy and application requirements.
It is important to note that the selection of the cobalt-based alloy powder should be based on the specific welding application and the desired properties of the final weld. Different cobalt-based a
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