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Four Elements Affecting Precision Castings
Cast iron design process. When designing, in addition to determining the geometry and size of the casting according to the working conditions and metal materials, the rationality of the design should be considered according to the angle of the casting process characteristics and the casting alloy to avoid defects such as deformation, cracking and composition segregation.
11
2024
/
01
Types and Application of Precision Forging Technology
Forging forming technology, also known as near-shape or near-net forming technology, refers to the forming technology of mechanical components that require only a small amount of processing or no longer processing. In production practice, people are used to forging forming technology is divided into: cold precision forging forming, hot precision forging forming, warm precision forging forming, compound forming, closed forging, isothermal forging, shunt forging and so on.
Time, cost, quality in the lean production process
The tools and methods, management principles and implementation process included in lean production are a very large set of methodologies. Books such as (lean thinking) (machines that change the world) (Toyota model) describe this set of methodologies in more detail. This book does not expand these contents, but only dabbles in the basic concepts of lean production for some products.
Demand is still resilient in the off-season to support the development of lead prices.
Overnight, the lead shock was weak, opening at 2109 US dollars/ton, high at 2134.5 US dollars, low at 2076 US dollars, and closed at 2107.5 US dollars in late trading, down 8 US dollars, or 0.38 per cent; trading volume 5817 increased by 2149 hands, and open interest 104741 increased by 3 hands. In the evening, the main 2305 contract of Shanghai lead held steady, closing at 15340 yuan/ton, up 5 yuan, or 0.03 per cent. Today's spot lead price forecast: the market is still trying to solve the financial crisis, overnight Lun lead fell slightly; Henan Wanyang crude lead is routinely overhauled, and the short-term supply pressure is not great. At the same time, it benefits from the elimination period of over-standard electric bicycles and the promotion activities of car companies represented by Hubei. Demand is still resilient in the off-season, supporting lead prices. Spot lead is expected to remain stable today.
07
2023
02