According to Henan Coal Chemical Group, Yonglong Chemical's 1 million tons vacuum salt production project was formally put into operation on June 28. This is one of the largest salt production units in the domestic salt manufacturing industry, and it is also the Yonglong Chemical Chlor-Alkali Phase I project. Yonglong Chemicals has a 5.3-square-kilometer salt mine prospecting power in Liyang, with a rock and salt reserve of 890 million tons. Yantian ranks first in the country with high extraction and industrial utilization value. The Yonglong Salt Chemical Project is one of the major projects for the integration of coalification, salinization, and petrochemical integration in the planning and implementation of a recycling economy park in Xiangyang by Henan Coal Chemical Group.
The real development of investment casting in China is only a few decades. In the past few decades, China's development has been very rapid, and its proportion in the world is very high. For some workpieces with complex structures and not very high precision requirements, if it is difficult to process with CNC or the processing cost is high, such workpieces are especially suitable for investment casting. Even if some parts require precision assembly, we can meet the requirements through local precision CNC machining, thereby reducing costs. Especially for stainless steel castings, it is used in many places. Because of its strong corrosion resistance, high strength and toughness, stainless steel can be used in some harsh environments. For the processing of stainless steel parts, it is nothing more than precision CNC machining, forging processing, stamping processing, casting processing or powder metallurgy processing, etc., and investment casting is a relatively low-cost, high-precision processing method.
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It is reported that the project has a total investment of 560 million yuan, mainly to produce high-purity industrial salt. The ground broke in March 2010, and a successful test run on May 12, 2011 successfully produced a qualified industrial salt. At present, the project has produced more than 14,000 tons of qualified industrial salt with a purity of 99.7% or higher and higher than the national standard. It has completed more than 12,000 tons of sales, showing a promising situation in both production and sales. 