[2017-10-19]
The State Academy of Sciences has recently developed products of advanced technology with a wide application in different industrial establishments.
The Nano Materials Institute came up with a slide bearing for 80 hp tractor. The bearing made by a powder metallurgical method has over 1.5 times longer service life than the existing one processed by the centrifugal casting method. It costs far less as it is produced with by-products of machine parts cutting. The introduction of this production process into repair shops and factories manufacturing a variety of means of transport such as lorry, tractor and ship will enable them to produce various bushes and alloy parts as well as slide bearing.
The institute also unrolled a smart hand sterilizer using liquid nano silver. Unlike those using alcohol or chlorine, this efficient disinfector brings no harm to human body and environment. As the nano silver is fine enough to pass through glass crystal, it has great power of penetration into cells and kills 650 species of germs. The other merit is that sterilizing time is short whereas asepsis maintaining time is long as disinfecting and drying processes are integrated. The device can be applied to the manufacture of medicines, and medical appliances and food processing as well as the public health sector requiring germ-free environment.
Meanwhile, the Laser Institute unfolded an unmanned laser cutting machine which is widely applicable to manufacturers of garment, shoes and bag. The nonmetallic device optimizes arrangement by computer-aided design and cuts material precisely. It carries out precision cutting for any intricate figures and curves according to the design, thereby ensuring the highest possible cutting yield and standardization of products. The Pyongyang Bag Factory that has introduced this machine is now free from the processes of stencil insertion and drawing, thus saving a great deal of labour and equipment.
The Mechanical Engineering Research Institute developed an amorphous iron core manufacturing technique. The installation of it in transformer in the power supply sector makes it possible to prevent no-load power loss and ensure a higher efficiency of transformer than silicon steel core.
In addition, the State Academy of Sciences invented dozens of efficient products of cutting-edge technology and information technology.
By Choe Kwang Jin PT
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