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QINGHONG HOLDINGS

QINGHONG HOLDINGS

Focusing on hot-rolled seamless pipe technology and equipment

The company is a national high-tech enterprise, a "specialized and special new" enterprise in Shanxi Province, with a provincial enterprise technology center in Shanxi Province, and a R & D team composed of experts, professors, senior engineers and other professional and technical personnel.

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03

2022

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01

Taiyuan "titanium alloy seamless tube" reached the world level

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The Sino-German Digital Manufacturing Industry Demonstration Park Construction Symposium held on September 4 in Shanxi Comprehensive Reform Demonstration Zone reported that the hot-rolled titanium alloy seamless pipe production technology developed by Taiyuan Qinghong Electromechanical Equipment Co., Ltd. (hereinafter referred to as "Taiyuan Qinghong") and Academician Wang Guodong of the Chinese Academy of Engineering has been listed as a demonstration project for flexible intelligent manufacturing of titanium alloy seamless pipes and will soon be put into operation in the test area.

 

 

Academician Wang Guodong introduced that the production technology of hot-rolled titanium alloy seamless tubes in Taiyuan has reached the world's advanced level, breaking the technological monopoly of developed countries and filling the domestic technological gap.

Titanium alloy has the characteristics of corrosion resistance, high temperature resistance, high strength and toughness, low density, and good biological adhesion. It is widely used in offshore oil exploration, nuclear power engineering, military engineering, aerospace industry and other national key industries, such as manufacturing ship gun tube, nuclear power unit tube, artificial joint, etc.

For a long time, China's only a few titanium alloy production enterprises, the use of traditional cold drawing technology, low production efficiency, low yield, high energy consumption, pollution, limited production diameter, it is difficult to meet market demand. The price of imported titanium alloy seamless pipe is as high as 1.2 million yuan (RMB)/ton.

 

 

Domestic desalination, oil exploration, nuclear power engineering, military engineering, aerospace and other enterprises often have to spend high prices to buy imported high-end titanium alloy seamless tubes. Since 2014, the R & D team of "Taiyuan Qinghong" has adopted the results of temperature control rolling and intelligent control technology of the academician team under the guidance of Wang Guodong, State Key Laboratory of Rolling Technology, Northeastern University. After three years of research and development, the first domestic hot-rolled titanium alloy seamless tube production equipment and production process have been developed.

This technology with independent intellectual property rights has solved the industry problems of hot rolling and forming of domestic titanium alloy seamless pipes, broken through the blockade of the production technology of hot-rolled titanium alloy seamless pipes in developed countries, broke its technical monopoly, and filled the domestic technical gap. Improve production efficiency and reduce production costs.

Zhang Guoqing, chairman of "Taiyuan Qinghong", said that the price of titanium alloy seamless pipes produced by traditional domestic technology is about 300000 yuan/ton to 500000 yuan/ton, and the production time is 30 minutes/root (diameter less than 120mm); The cost of titanium alloy seamless pipe produced by "Taiyuan Qinghong" hot rolling technology is only 200000 yuan/ton, and the production time is only 5 minutes/root. Compared with traditional technology, this new technology has low production cost, low energy consumption, high efficiency and low pollution, with a diameter of 200mm to 600mm and a length of 12 meters.

 

 

National Day said: "The trial-produced hot-rolled titanium alloy seamless pipes have been sold to Saudi Arabia, Iran, the Emirate of Abu Dhabi and the Emirate of Dubai in the United Arab Emirates, and are used in seawater desalination projects in the Gulf countries and offshore oil exploration projects in the Middle East."

At the just-concluded annual meeting of the Shanxi Provincial Association for Science and Technology, Academician Wang Guodong said excitedly: "With this technology, my country's self-produced high-end titanium alloy seamless pipes will surely replace imported products and meet the needs of key national industries."

Experts at the meeting agreed that the technology will be put into operation in Taiyuan, and the annual output value will be increased by 3 billion yuan to 5 billion yuan, and the profit and tax will reach 0.5 billion yuan to 0.6 billion yuan.

Key words:

Qing Hong

Perforator

Taiyuan Qing Hong Intelligent Equipment Co., Ltd.

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