Xiamen Jinlu Special Alloy Co., Ltd. is an 80% export enterprise. However, in the impact of the international financial crisis, last year's sales revenue did not fall, reaching 1.35 billion yuan, and the annual profit exceeded 100 million yuan. On the 24th, we walked into the Jimei branch of Jinlu.
In the blue oxygen workshop, the automatic lifter puts a barrel of ammonium paratungstate into the rotary kiln, and calcinates and decomposes the purple tungsten crystal powder. In the reduction workshop, 10 large machines reduced the purple tungsten crystal powder to nano or ultrafine tungsten powder. In the carbonization workshop, tungsten powder and carbon black react to synthesize tungsten carbide at high temperature. In the packaging workshop, three machines are loading powdered tungsten carbide into individual drums, which will be used to make ultra-fine grained carbides to produce precision tools.
The whole process is led by Jinlu and the National Tungsten Materials Engineering Technology Research Center, and the "S-Tungsten In-situ Reduction Method" ultra-fine grained carbide industrial production technology was completed by the Beijing University of Science and Technology. Last month, the project won the second prize of National Science and Technology Progress Award. Jinlu is the only award-winning enterprise in our province, and it is also the first time that Xiamen enterprises have won the National Science and Technology Award.
"Our technology breaks the monopoly of foreign precision knives for a long time." Jin Chong, chairman and professor-level senior engineer Wu Chongxi, said that "Zi Tungsten in situ reduction method" is called "China Law" and it successfully surpassed the previous world's universal The two methods of Japan and the United States have become the best processes for the preparation of ultrafine grained cemented carbides. This technology marks that China is moving from a tungsten resource country to a tungsten industry power.
China's tungsten ore reserves account for 70% of the world's production and 80% of the world's production. However, it has not been possible to produce high-quality ultra-fine tungsten carbide powder. China's precision knives and CNC blades are almost entirely dependent on imports, and imports cost nearly 20 billion yuan each year.
Under the leadership of Wu Chongzhen, scientific and technical personnel have devoted themselves to research and development. In 1997, the "purple tungsten in situ reduction method" was born. In 2001, it began to produce hard alloy products with ultra-fine tungsten carbide powder as the basic material. In 2005, 7 series of more than 3,700 precision tools were developed. Today, Jinlu has the annual production capacity of 7,000 tons of tungsten powder and 5,000 tons of tungsten carbide powder. It has become the largest producer and exporter of tungsten powder and tungsten carbide powder in China. The products are exported to Japan, the United States and Germany. Industrial developed countries and regions.
"Scientific research ability and innovative ability are the source of a long-lasting modern enterprise." Wu Chongxi said. Jinlu has 286 engineers and technicians, accounting for 27% of the total number of employees. Among them, there are 3 experts who enjoy special allowances from the State Council and 4 professor-level senior engineers. Jinlu's Technology Research Center is the core of Xiamen Tungsten National Enterprise R&D Center and the core of National Tungsten Materials Engineering Technology Research Center. Over the years, Jinlu has independently undertaken more than 20 national scientific and technological research projects, and completed more than 1,000 scientific research projects at the provincial, municipal and enterprise levels.
Previously, the grinding allowance of the ultrafine grain bar blank was too large, resulting in high loss during the production process. Last year, Jinlu improved related technologies, reducing the grinding allowance by 30% and increasing the metal yield of the product by 3%. With this 3%, the company has saved more than 4 million yuan. Wu Chongxi said: "As long as we continue to innovate, promote product upgrading, and reduce production costs, we can cope with the international financial crisis."
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