Jo Nov 23, 2021
Choe Chol Min, section leader from Faculty of Materials Science and Technology manufactured centrifugal compressor impeller using FDM and investment casting.
Centrifugal compressor impeller, which enables to enhance engine output and combustion efficiency, is very difficult to manufacture as it’s very thin and propene is twisted.
He proposed a new method for manufacturing centrifugal compressor impeller using FDM and investment casting, and a scientific method for raising the extraction rate in casting up to more than 90% by fixing reasonable indices of investment casting process based on the optimal indices of FDM process and simulation analysis.
His paper titled “Manufacture of centrifugal compressor impeller using FDM and investment casting” is published in the SCI magazine, “International Journal of Advanced Manufacturing Technology”.
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Jo Nov 22, 2021
Recently students from our University are making remarkable achievements.
As the result of setting clear step-by step aim in study and persistently practising it in order to prepare themselves to be future pillars armed with our state-first principle, our students won the first places in the October Codechef Programming contest as well, along with the September contest. Particularly, among the 16 first-place winners in the October contest are 5 students from our university, which covers as much as 31.25%.
Also, our students won the grandprix in the National Students’ 3D machine design contest held in September with an average grade of 98.9. Kim Il Hyok, Jong Ju Hyon and Han Kum Il, 4th-year students from Mechanical Science and Engineering Faculty played the decisive role in the contest by getting the full marks of 100 for designing forged service robots finely.
Many students including Kim Sung Nam and O Song Ryong, 4th-year students from Metal Engineering Faculty and Materials Science and Technology Faculty actively took part in scientific research work such as developing and introducing rational iron-making methods and making tools home-oriented and so on and thus displayed their competency.
Kim Kuk Jin, 2nd year student from Information Science and Technology Faculty said as follows. “I wouldn’t be stuck up with conceit for what’s achieved and always study creatively setting the goal high and saving my time, just like my seniors had been. I suppose other students are also thinking as me…
I will study harder and harder to challenge the world, compete with the world and take over the world.”
The year has nearly gone and only a few days have left. But who knows what other successes would be made during the remaining short time…
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Jo Nov 18, 2021
The contest was held between October 1 and 11, 2021.
The contest, drawing some 25 000 students and programmers from dozens of countries and regions including our country, China and Russia, went on three categories.
7 problems were set forth for the 1st and 2nd category contest and 9 problems for the 3rd. On October 10, when the contest had drawn to a close, a student taking part in the 1st category contest from our university discovered some mistakes in the examining staff of one problem and informed the organizing committee of this. On October 11, the Organizing committee reexamined the problem and canceled it. As the result, 6 problems were presented for the 1st and 2nd categories and 8 for the 3rd category.
As for the result of the contest, 16 participants got the first place. Among them were 5 students from our University who had taken part in the 1st category contest and solved out all the problems set forth.
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Jo Nov 16, 2021
National Scientific and Technological Exhibition on Nano Technology Section-2021 was held between October 22 and 29 under the sponsorship of the Central Committee of Korean Federation of Science and Technology.
This exhibition was held under the theme of “Strengthening the foundation for the establishment of nano industry”, drawing teachers, researchers, graduate school students etc. from dozens of institutions including
The exhibition went on divided into scientific and technological exhibition and scientific and technological forum in the form of screen meeting.
“Ozone Generating System using Nano Composite Material”, the research work of Kim Kwang Jun, researcher from Nano Physics Engineering Institute was esteemed to win the first place in the exhibition and “Relationship between Relative Humidity and Inductive Capacity in Nano Porosity Material”, the proposal from Researcher Kong Myong Nam got the first place in the public discussion.
Besides, research works and proposals from many researchers of the Institute including Ha Chol Ho, Cha Su Song, Jang Tae Il, Ro Myong Gum, Mun Yong Su, Mun Se Hyon etc. got placing in the ranking and so Nano Physics Engineering Institute held the first place in the team ranking of the Exhibition.
Also, proposals from many teachers and researchers from Faculty of Materials Science and technology, Faculty of Applied Chemical Engineering, General Assay Office etc. were esteemed superior.
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Jo Nov 15, 2021
National Public Presentation Meeting of Welding Science and Technology was held between October 12 to 15 under the sponsorship of the Central Committee of Korean Federation of Science and Technology.
The public discussion was held in the form of screen meeting. Teachers, researchers, graduate school students, field technicians and Three-revolution team members from over ten institutions including our University, Pyongyang University of Architecture, Pyongyang University of Mechanical engineering, Pyongyang University of Transport, Welding Research Institute of National Academy of Science.
In this forum, several proposals such as those suggested by Cha Kwang Jin, section leader from the Faculty of Materials Science and Technology –“Inverter CO2 shielded gas semi-automatic arc welding equipment” and graduate school student Pak Kwang Jin –“Arc spray process of cool punching die” were highly appreciated as for making success in the research work on new welding methods and localizing equipment, raw materials and resources for welding field.
Besides, several proposals from by our university were estimated valuable.
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Jo Nov 14, 2021
The research group led by Jang Song Ok, laboratory head at the Faculty of Mining Engineering succeeded in manufacturing a natural graphite brush for shaft grounding and is trying to make further achievements in their research.
They proved scientifically that it is possible to make a brush for shaft grounding with natural graphite and decided the structure, quality and operation system of the material for the brush with high capacity of electro motion and contact property and with improved wear property.
The permissible current density of the brush is 20~30A/㎠, the ratio of wear is about 0.3㎜/1 000㎞ and the spring pressure is around 20㎪.
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