2013 is the first year for the full implementation of the spirit of the 18th National Congress of the Communist Party of China (CPC). It is also a key year for achieving the goals of the 12th Five-Year Plan for the rapid development of the dryer industry. The deepening of the scientific development of dryers at a new historical starting point is of great significance for consolidating and developing a good economy. We must continue to adhere to the general tone of "stability for progress," and make new progress in addressing outstanding issues such as "unbalanced, uncoordinated, and unsustainable" development, and strive to achieve a fast, good, and fast development in the dryer industry. The 18th National Congress of the People's Republic of China drew up a blueprint for the development of the "dryer industry," guiding the direction, clarifying the requirements, and making deployments. Looking into the future, the urgent need for further rapid development of dryers, huge potential, favorable conditions and broad prospects are still in the golden development period. While enhancing confidence in development, we must also maintain a clear-headed mind, recognize the inadequacies that exist in the industry, learn from each other's weaknesses, and gradually make the dryer move toward zero-defect development. In particular, the enhanced heating of the dryer heating furnace maintains a balanced heat balance and can be improved from the following aspects: (1) To increase the area of ​​the inner wall of the furnace to increase the heat exchange area without increasing the space in the furnace chamber, such as using a corrugated furnace roof. (2) Reasonable furnace space. For furnaces with thin layers (single pieces) of fabric, the furnace should be flat. Place heating elements at the top of the furnace and at the bottom of the furnace floor to achieve even heating on both sides. (3) The inner wall of the lining is coated with high emissivity paint. (4) Fans are installed in the furnace to enhance the convective heat transfer of the furnace gas. (5) The use of a circular furnace instead of a box-shaped furnace can enhance the uniform heat transfer effect of the furnace to the workpiece and reduce the heat dissipation of the furnace wall. The constant temperature control of the furnace temperature can completely dry the materials after the dryer to reach the final moisture requirements. What is a Piston Ring?
Piston ring is used to insert the piston groove inside the metal ring, piston ring is divided into two types: compression ring and oil ring. The compression ring can be used to seal the combustible mixture gas in the combustion chamber; The oil ring is used to scrape excess oil from the cylinder.
The piston ring is a kind of metal elastic ring with large outward expansion deformation, which is assembled in the profile and its corresponding annular groove. Reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer circle of the ring and the cylinder and one side of the ring and the ring groove.
Commonly used car engines have two kinds of diesel and gasoline engines, because of their different fuel performance, the use of piston rings are not the same.
Early piston rings were formed by casting, but with the progress of technology, high-power steel piston rings were born, and with the continuous improvement of engine functions and environmental requirements, a variety of advanced surface treatment applications, such as thermal spraying, electroplating, chromium plating, gas nitriding, physical deposition, surface coating, zinc-manganese phosphating treatment, etc., the function of the piston ring is greatly improved.
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Piston ring is the core component inside the fuel engine, it and cylinder, piston, cylinder wall together to complete the seal of fuel gas.