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. Co Powder,Cobalt 6 Powder,Cobalt 12 Powder,Cobalt 21 Powder Luoyang Golden Egret Geotools Co., Ltd , https://www.lygoldentool.com
At present, the mainstream ex-factory price of 55% powdered monoammonium phosphate has dropped to 1850 to 1950 yuan (t price, the same below). Ex-factory price is less than 2,000 yuan, and the minimum ex-factory price has reached around 1800 yuan.
Market participants expect that due to the high prices of raw materials such as phosphate rock and synthetic ammonia, the production cost of monoammonium phosphate will increase substantially compared with the same period of last year. Currently, the ex-factory price of 1,800 yuan has reached a lot of monoammonium phosphate production enterprises. The bottom line of the cost of small-scale production companies. From the perspective of production costs, there is little room for the price of monoammonium phosphate to continue to fall. With the start of compound fertilizer production in August, the demand for monoammonium phosphate has increased and the monoammonium phosphate price is expected to stabilize.
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
Due to the poor demand of the downstream compound fertilizer industry and the excessive increase in the previous period and the excessively high prices, the price of monoammonium phosphate has been falling since May, and there is still no obvious sign of falling.