By that time, the county's pipeline equipment manufacturing industry will achieve an annual sales revenue of 30 billion yuan, an average annual increase of 26%; 4 companies with sales revenue exceeding 1 billion yuan, 10 companies exceeding 100 million yuan, and enterprises exceeding 50 million yuan. 20 homes. The industrial added value is 9 billion yuan, with an average annual increase of 26%, and the contribution to GDP is over 80%; the profit and tax is 1.05 billion yuan, and the average annual growth rate is 26%; the number of employees reaches 141,000, an annual increase of 16.7%; The production capacity exceeded 15 million tons, and the product’s share in the domestic market reached more than 50%.
It is understood that, after more than 30 years of development, Yanshan's pipeline equipment manufacturing industry has grown hundreds of times in size and has become the leading industry in Yanshan County.
From the perspective of the development of Yanshan pipeline equipment manufacturing industry, the following features are mainly presented:
First, the degree of clustering is high. There are more than 650 companies in the three industrial parks around the county, accounting for 70% of the total number of companies. Yanshan Pipeline Equipment Manufacturing Co., Ltd. has formed 10 large-scale leading enterprises with sales revenue exceeding 100 million yuan, including Zhongyuan, Hongrun, Bohai, Tiantai, and Zengpeng. Among them, Hongrun Group is the second company in the country and the fourth company in the world that can produce thick-walled alloy steel pipes. It is the main manufacturing unit of the national power station piping standards. The production capacity of spiral pipe and hot-rolled steel pipe of Zhongyuan Pipe Company reached 800,000 tons. At present, there are only 4 sets of spiral control tube units with a diameter of 2,420 mm in the whole country, and Zhongyuan Company accounts for 2 sets.
The second is the complete variety. The county has more than 1,300 sets of various equipment for the production and processing of pipeline parts; it has 8 hot-rolled and heat-reduced seamless steel pipe production lines and 22 spiral steel pipe production lines. Pipeline equipment is divided into elbows, tees, elbows, manifolds, different diameter pipes, valves, spiral steel pipes, seamless steel pipes, anti-corrosion insulation pipes, and power station equipment. Pipe fittings products have reached more than 1400 varieties in 12 major categories; pipe products have reached more than 170 varieties in 5 categories, becoming a veritable pipeline equipment supermarket, whether it is oil and gas transmission, or coal salt transportation, whether it is electricity or heating, which involves pipelines. Yanshan can produce basically all of them.
The third is the continuous increase in the content of science and technology. The Yanshan pipeline equipment industry has 121 patents and 24 products have filled the domestic gap. Among them, the P91 three links replaced Italian imports and almost monopolized the market for the West-to-East Gas Pipeline.
Fourth, the market share is high. By the end of 2007, the domestic market share of Yanshan pipeline equipment manufacturing industry had reached over 40%, and the market share of high pressure special pipe fittings reached 50%.
Fifth, the level of corporate qualifications is relatively high. In Yanshan County, 325 pipeline equipment companies have passed the ISO series of international quality management system certification, and more than 70 companies have been identified as fixed-point suppliers by PetroChina and Sinopec. Among them, 5 have obtained API certificates and 1 has obtained ASME certificates.
Synthetic cryolite is a white crystalline powder or a sandy-size granularity, and a pinkish crystalline powder or a sandy-size granularity as well. Sp.gr.2.95-3.01g/cm3, melting point about 1000°C, specific heat 1.056j/g°C at 18-100°C. It`s slightly soluble in water, but insoluble in anhydrous hydrogen fluoride. The content of its crystal water will be decreased while the increasing of the molecular ratio, therefore its loss on ignition will be also decreased while the increasing of the molecular ratio. After the paste of synthetic cryolite with different molecular ratio dehydrates, the loss on ignition at 800°C will appear 10.34%, 6.22% and 2.56% when the molecular ratio reaches 1.74, 2.14 and 2.63 reactively.
Uses:
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