Eshan Yi Autonomous County of metallurgical Group's iron ore and read Kunming University research cooperation in recent years, the use of the thickness of the grain dry magnetic separator technology to replace the traditional process, improve resource utilization, and losses in one fell swoop, to achieve economic efficiency 2.256 million yuan.
Features:
ER70S-6 is a kind of mild steel copper coated Welding wire, suitable for 100% CO2 and Argon& CO2 mixed gas protective welding with stable feasibility, good welding seams, less spatters and excellent welding process properties.
Application:
Used to weld ship building steel(A,B,D,E,A36,D36,E36)and equivalent mild steel or 550Mpa grade mild alloy steel, such as container building, construction machine, railway construction, pressure vessel for semi-auto or automatic gas shielded welding.
1. Wire into the plant must be stored in dry conditions, can not open welding wire coil waterproof packaging.
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The reserves of limonite in the Huanian iron ore mine are 51.276 million tons, which is one of the iron ore resources with good quality and large scale in the central Guizhou. It has high mining and utilization value and has an annual output of 200,000 to 250,000 tons. Scale of mining production. However, due to the complicated geological conditions of the mine, the low-mixing rate of ore underground mining is high, resulting in a large amount of ore being unable to be exploited or being mined, and the mining resources are wasted. In 1997, Daishan County Metallurgical Group decided to rely on scientific and technological progress to improve the production efficiency of the enterprise, and entrusted researchers such as Professor Xu Xiaojun from the School of Land and Resources Engineering of Kunming University of Science and Technology to conduct experimental research on the feasibility of iron ore dressing of iron ore . In the four years of cooperation, the Kunming project team has developed a new technology of limestone coarse and fine dry magnetic magnetic separation and tailing, and has supported the cooperation of Yuxi City School Project. Conduct joint research on semi-industrial and industrial experimental research, plant selection and industrialization. Due to the new process of “crushing – sieving and grading – coarse and fine dry magnetic magnetic separationâ€, the problem of low grade of limonite is solved. The investment of more than 190 million yuan in the iron ore mine has established the first domestic brown. Iron ore industrialization industry produces dry strong magnetic separation plant.
The implementation of the new project has increased the utilization rate of mine resources by 11%, and basically realized the tailless clean production of the iron ore mine linter plant. After the loss of more than 1.5 million yuan in 2000, Huanian Iron Mine turned losses into profits. In 2001, it realized a post-tax benefit of 2.256 million yuan.
2. Welding shall be removed before welding surface oil, rust, water and other impurities.
3. The CO2 gas protection, CO2 gas purity 99.98%.
4. CO2 welding protective gas flow rate should be controlled at 20~25L/min.
5. Wire extension length should be controlled in the range of 15~25mm.