Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Milan MOJŽIŠ"'
Publikováno v:
Journal of Metallic Materials. 74:21-28
The paper focuses on the analysis and comparison of tube wall thickness after cold drawing. The tube wall thickness obtained by the experiment was compared with the wall thickness obtained using finite element method (FEM) simulation in the simulatio
Publikováno v:
Journal of Metallic Materials. 74:4-8
This article deals with a comprehensive analysis at roll cooling of push bench on a rolling mill during the rolling process of semi-finished products used for the production of seamless tubes. An important issue that we deal with in this issue is the
Publikováno v:
Acta Tecnología. 7:125-129
The paper deals with the issue of eccentricity in the technological node of the piercing press, under selected conditions, which result from the possibilities of production in the conditions of ŽP a.s. These conditions were verified and adapted to t
Autor:
Milan Mojžiš
Publikováno v:
HUTNIK - WIADOMOŚCI HUTNICZE. 1:35-38
Publikováno v:
Materials Science Forum. 891:51-54
Cold drawing of steel tubes refers to a forming operation where a precision steel tube is being formed in a die while reducing tube cross-section, altering the wall thickness and making the final tube much longer than the original hollow. The forming
Publikováno v:
Materials Science Forum. 891:167-170
This paper deals with the analysis of microstructure in the conditions after austenitising at high temperatures (1150 °C, 1180 °C a 1210 °C/45 min) for 9CrNB steel, and with the analysis of microstructure in the conditions after subsequent temperi
Publikováno v:
Materials Science Forum. 891:137-142
This paper deals with the optimalization of tempering temperature of 9CrNB steel in Železiarne Podbrezová Steelworks, where hot-rolled tubes were produced with dimensions of 88.9 x 12.51 mm. Austenitising at 1070°C/12m/hr was carried out after r
Influence of Die Geometry on Drawing Force in Cold Drawing of Steel Tubes Using Numerical Simulation
Publikováno v:
Key Engineering Materials. 716:708-712
In Železiarne Podbrezová, cold drawing process is the final process in production of precision seamless steel tubes. This particular technology utilizes multiple drawing sequences and intermediate annealing. From the physical point of view, it is
Publikováno v:
MATEC Web of Conferences, Vol 299, p 04009 (2019)
Measurement by computed tomography is very useful in evaluation of dimensions and internal structure. There are still some problems which need to be solved. Scanning accuracy depends, among other things, on the part´s material. Metal parts have high
Publikováno v:
Materials Science Forum. 782:133-136
Steel 7CrMoVTiB10-10 is a Cr-Mo medium alloy steel with addition of vanadium and titanium as microalloying elements and with further addition of boron. The resulting microstructure after the heat treatment takes the form of a tempered bainite. In hot