The new titanium alloy springs offer excellent high strength and fatigue tolerances with improved suspension performance. The new titanium alloy springs are available in different sizes and sizes, depending on the model, usually 30% lighter than steel springs. Light about 0.5 kg. Su Hongying translated from "Cash Materials and Processing Technology" July 2006, Alcoa Research and Development of Aluminum Alloy New Materials for Trucks, USA Developed New Titanium Alloy Springs USA Successfully Developed High Temperature Aerospace Nickel Alloys US Monroe ATI Allvac Research and Development A dispersion hardened nickel-based alloy material was named, named Allvac718plus alloy. This alloy has excellent high temperature tensile strength and stress fracture resistance, and has the high temperature resistance and thermal stability of the Waspaloy alloy while retaining the processing properties of the 718 alloy. The alloy uses two or three vacuum smelting to ensure excellent low-fold tissue cleanliness and tight chemical composition control.
The three-smelting process increases the electroslag remelting between the secondary vacuum melting, minimizes the occurrence of macrosegregation, improves the cleanliness of the low-fold structure, and is particularly suitable for processing rotary parts of jet engines.
The 718plus alloy has a higher operating temperature than the 718 alloy. It exhibits good performance at room temperature of 650 ° C and 704 ° C in terms of tensile, creep and fatigue crack resistance test performance. Due to its high strength, excellent formability, and good wear-resistant weld cracking properties, it has a greater advantage than wasaloy and other high temperature resistant nickel-based alloys.
718plus alloys have lower cost and improved hot workability and therefore higher quality. Su Hongying translated from "Cash Materials and Processing Technology" September 2006, the United States developed aluminum alloy smelting protective coatings. American Pyrotech, OAKRidge National Laboratory and Rolla University of Missouri jointly developed aluminum alloy smelting protective coatings, developed Low permeability ceramic materials and refractory materials can withstand thermal shock and erosion, and withstand long-term aluminum water without deterioration.
This new coating is used on die-cast risers and a zirconium-based coating can increase the life of the riser by a factor of five. This new coating has excellent properties in aluminum smelting and low pressure die casting.
The computer model shows that the new coating can extend the service life of the low pressure die casting machine by 9 times, saving 217.33 billion kJ per year for the low pressure die casting industry, reducing scrap rate, downtime, scrap reprocessing costs, and increasing production and labor productivity. . Therefore, this new coating material has great potential in the chemical, petrochemical and glass industries. Su Hongying translated from "Cash Materials and Processing Technology" September 2006, Alcoa has developed an aluminum alloy Dura-Bright fuel tank, landing gear, commonly known as the fifth wheel and composite board, called Aluplate, For trucks, these are developed for the commercial transportation industry.
The aluminum alloy Dura-Bright fuel tank is corrosion-resistant and the surface treatment has penetrated into the interior of the aluminum alloy. The surface gloss can be maintained for many years without polishing. The new aluminum alloy landing gear is a trailer for trucks that can reduce the weight of the trailer by 45.36 kg and can meet or exceed all load conditions. This aluminum landing gear, also known as the 5th wheel, is unique to the Dutch group. No lubrication technology, using the 6061T6 wrought aluminum plate to make the fifth wheel, which is 45.36 kg less than the fifth steel wheel.
The newly developed composite sheet is made by combining a high-strength aluminum alloy sheet with an extruded thermoplastic aluminum profile using Aluplate. Su Hongying translated from "Cash Materials and Processing Technology" May 2006, Korea's PLSCO's new magnesium sheet rolling mill, South Korean steel giant POSCO plans to start construction of South Korea's first magnesium sheet in Shunchuan City in southwestern China in August 2006. The factory produces magnesium sheets for mobile phones and electronic applications. The construction of the new plant will be completed by December 2007, and the target production capacity in 2010 will be 3,000 tons of magnesium plate rolling products. Magnesium is a new business of POSCO, and Shunchuan is also the first magnesium sheet rolling mill in Korea.
POSCO is optimistic about the growth potential of magnesium sheets in Korea. The price of magnesium sheets is more than 8 times that of steel, but it is only 25% of the weight of steel sheets and 75% of the weight of aluminum sheets. Su Hongying translated from "Moon Monthly Review" May-June 2006
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