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There were 18 technicians who had no rest in the summer of 1991. They translate word-by-word to the basic documents of foreign equipment such as reducing furnace and air-flow dispersion machine in the field of tungsten-gold production

  • Mosten
  • 21 Oct

There were 18 technicians who had no rest in the summer of 1991. They translate word-by-word to the basic documents of foreign equipment such as reducing furnace and air-flow dispersion machine in the field of tungsten-gold production.

Tungsten is a rare metal with a density of three times that of iron and is close to gold. The hardness of tungsten carbide alloy made by adding cobalt to tungsten is comparable to that of diamonds. Because of this characteristic, it is also an important raw material of aerospace equipment.

China undefineds 50 per cent of the world undefineds tungsten resources, but only a large resource, is not a powerful source of tungsten, according to a deep-and-financial press. For many years, only the low-end tungsten concentrate can be exported for foreign exchange, and the tungsten powder is not processed, and at that time, the export of one ton of tungsten concentrate is only 70,000 yuan, but the import of one ton of pure tungsten powder can reach up to 800,000 yuan, and the high-end technology is fully controlled in foreign enterprises.

The engineers have repeatedly tested the conventional equipment developed by the independent R & D, and in 2008,2011 and 2014, the high-performance tungsten powder carbonization, the key technology of tungsten and the ion exchange method developed by them were awarded the first prize and second prize of the national science and technology progress. China can only export the magic spell of the primary raw material of the tungsten ore, which is a key step in the export of the tungsten carbide advanced material.

With high-quality tungsten powder, they do undefined meet, and they have to build a high-quality tungsten-gold cutter. Cemented carbide is known as an industrial "tooth". The tool, which appears to be common, is an essential tool for making spacecraft and large aircraft, and its R & D success marks a 30-year-old technological monopoly abroad.

Now, engineers are challenging to make microcutters with a diameter of only 0.03 millimeters, the worldundefineds smallest spiral-edged end milling cutter, according to reporters at Deep Finance. The utility model relates to a special tool for the manufacture of aerospace military instrumentation. In the first conference room of the grinding and processing plant, Li Lingxiang, a senior engineer, and his team spent nearly a year sleepless in the room in order to overcome the difficulties of 0.03mm spiral blade vertical milling cutters.

With the continuous exploration of several hundred times of grinding process parameters, under the electron microscope for 3000 times, this kind of 0.03 millimeter high-precision two-edge spiral vertical knife detection, all the indexes have been up to the standard. With the accurate control of the world-class grinding process, the improvement of the working efficiency is brought.

After the research and development of the raw materials and the grinding process, the engineers locate the next target on the coating process, and the coating is an effective means to ensure that the modern cutting tool becomes a high-tech performance product. The ultra-thin and ultra-smooth high-hardness coating can double the cutting performance and the service life of the alloy cutter, thereby entering the high-end alloy cutter market.

All along, the core technology of coating process has been mastered and blocked by foreign companies. But China undefineds engineers are still trying our own research and development, firmly gnawing down the hard bones of this research.

The tungsten and gold tools produced after coating are continuously used in the manufacture of high-end instruments such as large aircraft, fighter planes and so on in our country. After this kind of deep processing, it is equivalent to raising the value of the most basic tungsten ore to 6 million per ton. Their tools are exported to more than 30 countries and regions, including the United States and Europe. In the context of changes in the external environment, technological advantages give companies a broader range of options.

Tags :
Tungsten