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042019-04On the afternoon of March 27, 2019, the third executive director (extended) meeting of valve branch of China general machinery industry association was held in hangzhou.Huang...
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232019-03Recently, the Electrical Instrument Department of the Material and Equipment Department of Sinopec and Nanjing Valve Supply and Reserve Center of China Petrochemical Co., Ltd. organized...
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162019-03On March 12, the world's largest seamless integral stainless steel ring forging was successfully rolled using the metal construction forming technology developed by Institute of Metal Research, Chinese Academy of Sciences.
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092019-03Valves occupy a large proportion of mechanical products, especially in pharmaceutical, power, petrochemical, metallurgical and other fields, valves play a key role.
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022019-03Valve is the control component in the fluid conveying system, with cut-off, regulation, diversion, prevention of countercurrent, voltage stability, diversion or overflow pressure relief and other functions.
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232019-02I. Favorable factors Nuclear power is recognized as a clean energy. With the development of nuclear power technology, its safety and economy have been improved, and it has gradually been highly respected.
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192019-01First, external damage is caused by material defects. The manufacturing process of valves is very complicated. If the valve produces blowhole or slag inclusion during casting, these defects may expand and cause damage, resulting in fluid leakage.
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122019-01Flange sealing surface type introduced flange sealing surface according to the working condition, medium, pressure, specifications, temperature and other conditions, so the type of choice is not the same.
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052019-01Compared with other mechanical manufacturing processes, valve manufacturing process has the following characteristics.
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302018-12Recently, the China Machinery Industry Federation and China General Machinery Industry Association, entrusted by the State Energy Administration, hosted the "New Product Appraisal Meeting of Key Valves and Compressor Anti-surge Valves for ...
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