Zinc Die Casting Products are a metal forming process in which molten zinc metal is put under pressure and injected into a die.
Zinc Die Casting Products are efficient and economical and offers a wide range of durable shapes and components. Little or no machining is required after a part is die casted, because the process provides very close tolerances for even complex shapes. Zinc Die Castings can also be easily plated or finished. Zinc Die Casting Products are dimensionally stable and heat resistant.
Although this alloy exhibits excellent casting characteristics, it has seen limited use by die casters. It does however possess some interesting characteristics that may be of assistance to designers. Its creep performance is rated higher than the other zinc alloys and it maintains higher strength and hardness levels after long-term aging. Zinc Die Casting Products Zinc Die Casting, die casting parts, Zinc Alloy Die Casting, Zinc Casting, Hardware Parts, Valve Parts, Auto Parts NINGBO ZHENHAI BOLANG METAL PRODUCT FACTORY , http://www.bldiecasting.com
The Lhasa to Shigatse Railway and the Qinghai-Tibet Railway formally converged on May 20, which means that the Laija Railway officially has the conditions to operate locomotives and is expected to be completed at the end of the year.
It is reported that the Lajai Railway is an extension line of the Qinghai-Tibet Railway and is one of the important projects of the National "Eleventh Five-Year Plan" and "Mid-and-Long-Term Railway Network Plan". The project starts from the Lhasa at the end of the Qinghai-Tibet Railway, runs through Lhasa, Henan, and passes through the Delong Deqing, Qushui, and Shunya-Luzang Tibetan Rivers. It passes through a canyon area of ​​nearly 90 kilometers in length. It reaches Nishigashi from Nimmu and Rinbo and is 253 kilometers long. The whole line has 13 stations, and the design standard grade is National Grade I railway. The whole line is single-line, and the electrification conditions are reserved. The train operating speed is not less than 120 kilometers per hour and the annual cargo volume can reach more than 8.3 million tons. The Laiyashi Railway started construction in 2011 and the construction period is 4 years. On May 14th, the largest battlefield reconstruction project in the construction of the railway in Lajai - Lhasa station, Lhasa West Station and Liuxun Line (referred to as "two stations and one station") battlefield reconstruction project started, which lasted 7 days on the 20th. Officially completed the integration with the Qinghai-Tibet Railway.
Zinc are alloys that have high strength and hardness, outstanding corrosion resistance,full recyclability, mechanical properties, high thermal and electrical conductivity and strength at high temperatures. Zinc alloys possess high dimensional stability for complex shapes and excellent thin walls. The cost of raw material is low.
The behavior of zinc alloys under stress is non-linear and time-temperature dependent on strain-rate, i.e. the ratio of stress to strain is not constant, even at low stresses, and varies with time resulting in continuous plastic flow under constant applied load. Designers of structural components should be aware of the creep limitations of zinc alloys, which do not have a single value for elastic modulus or yield strength. Yield strength (allowable stress) under sustained loading is dependent on the allowable design strain (% elongation) over the required service life. Working values for the elastic modulus and yield strength are important for design purposes. Standard engineering formulae used for calculating cross-sections of elastic materials must therefore be used with some caution.
This alloy exhibits excellent damping capacity and vibration attenuation in comparison with Aluminum Die Casting alloys.
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