Zobrazeno 1 - 10
of 15
pro vyhledávání: '"A. Yu. Kem"'
Publikováno v:
Advanced Engineering Research, Vol 17, Iss 2, Pp 99-107 (2017)
Introduction. Currently, in the Russian metallurgy, waste-gas heat under steelmaking in the electric arc furnace (EAF) is used inefficiently. This determines the urgency of the task to develop methods for СО to СО2 afterburning degree control und
Externí odkaz:
https://doaj.org/article/84b3be170e0e4ba3b61855c4000c1bb8
Publikováno v:
Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information. 76:700-708
To fulfil the requirements for pipe steels of strength group D in terms of sulfur content, the metal is subjected to ladle desulfurization. In the course of desulfurization, in order to reduce its duration, steel is mixed in the ladle by blowing with
Publikováno v:
Ferrous Metallurgy. Bulletin of Scientific , Technical and Economic Information. 76:463-470
To alloy steel by nitrogen, any material containing nitrogen in necessary amount and being capable to dissolve in the liquid metal, can be used. Methods of alloying by nitrogen, based on melt blowing through by gaseous nitrogen are known. However to
Autor:
A. Yu. Kem
Publikováno v:
Metallurgist. 62:979-985
Enhancement of product quality and reduction of production costs/energy consumption/environmental impact for steel smelted in arc furnaces both require improvements to out-of-furnace or ladle processing, and deoxidation in particular. A production pr
Autor:
A. Yu. Kem
Publikováno v:
Metallurgist. 61:751-757
One of the current trends in resource saving in steel making is replacement of conventional carbonaceous materials by recycled carbonaceous materials (RCM), such as end-of-life tires containing carbon black. A “cold model” is used to study the fo
Autor:
A. Yu. Kem
Publikováno v:
Russian Journal of Non-Ferrous Metals. 53:101-104
It is shown that the introduction of liquid film-forming lubricant into aluminum and the use of “warm” compaction make it possible to increase the environmental safety of powder metallurgy processes of aluminum via decreasing the dusting ability
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 31:926-929
The technology for producing high-fluidity molybdenum powder (86 sec) developed previously by the authors makes it possible using traditional methods of powder metallurgy, and in particular cold compaction in steel molds, to produce molybdenum compen
Autor:
A. Yu. Kem
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 31:675-679
Autor:
A. Yu. Kem, B. M. Fishtein
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 16:700-703
1. A mixture whose alloy component is of 180- to 315-μ particle size possesses optimum alloying properties. Use of such a mixture enables the mechanical characteristics of parts from sintered materials to be improved by 15–20%. 2. The addition of
Autor:
A. Yu. Kem, V. I. Zelenskii
Publikováno v:
Soviet Powder Metallurgy and Metal Ceramics. 26:987-994
A distinguishing feature of the production of the powder material 29NK with specified level of CLTE from powder components is the smaller amount of cobalt contained in the mechanical mixture compared with the amount required for the cast alloy. This