Essays about: "rolled steel"

Showing result 6 - 10 of 14 essays containing the words rolled steel.

1. 6. Finite Element Modelling and Parametric Studies of Semi-Closed Thin-Walled Steel Polygonal Columns - Application on Steel Lattice Towers for Wind Turbines

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Bona Ryan; [2017]
   Keywords : Lattice tower; Thin-walled element; Semi-closed polygonal section; Finite element analysis; Parametric study; Buckling; Python script; Matlab script; Eurocode 3; Factorial design;

   Abstract : The trend of structural engineering in the recent years is toward the use of lighter and moreeconomical structural elements. In steel construction, peculiarly, thin-walled structural elements arebecoming more popular and have a growing importance. READ MORE

3. 7. Possible reasons for flaking appearance during cold rolling on an austenitic stainless steel

   University essay from KTH/Materialvetenskap

   Author : Kristina Åkerlind; Zenja Jefimova; [2016]
   Keywords : Flaking; Austenitic stainless steel; Cold rolling; Oxide scale;

   Abstract : The research describes possible reasons why the flaking tendency during cold rolling can vary between different austenitic stainless steels. The flaking phenomenon was observed after a rolling process in Granlund Tools AB’s roll reducing mill “KOR-8”. READ MORE

4. 8. The Process Influence on Strength Properties of an Austenitic Stainless Steel (254 SMO)

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Anna Hellqvist; [2014]
   Keywords : stainless steel; hot rolling; levelling; strength; material properties; process parameters;

   Abstract : This work has been performed at Outokumpu Stainless AB, QPE, in Degerfors where focus is on production of hot rolled tailor-made quarto plate in special stainless steel grades such as highly alloyed austenitics and duplex steel grades. After a period with low values in strength and a lot of deviations in tensile tests for the highly alloyed austenitic stainless steel, 254 SMO, there was a need to investigate what influence some parameters during process has on strength values. READ MORE

5. 9. Design and development of a new invented doctor blade : Design och utveckling av nyuppfunnet kräppningsblad

   University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

   Author : Niklas Öhrn Sten; [2014]
   Keywords : Doctor blade; Design; Development; Kräppningsblad;

   Abstract : This report contains the development and construction of a new patented doctor blade. A doctor blade is used when creping soft paper from a large rotating Yankee cylinder. At the current state the doctor blade are in use for four to six hours before it needs to be switch due to wearing, stopping the production of soft paper. READ MORE

6. 10. Examination of defects and long term crack growth in rolled bars during long term storage

   University essay from KTH/Materialvetenskap

   Author : Jon Scheutz; [2014]
   Keywords : Rolled bars; cracking; hydrogen damage; long term storage;

   Abstract : This work has had the purpose to examine defects and the cause of crack growth during long term storage in rolled bars. The bars in question are rolled and stored at Ovako in Hofors. The problem is approached by theoretically examining the possibilities of hydrogen damage, room temperature creep and naturally occurring porosity. READ MORE