Categorization and Properties of SAE Cold Rolled Strip Steels

2015 ◽  
Author(s):  
Keyword(s):  
Rolled Strip ◽  
Cold Rolled

Microstructure evolution in cold rolled strips during continuous annealing - modelling and simulation

2004 ◽  
Vol 120 ◽  
pp. 607-614
Author(s):  
V. Hein ◽  
H. Freydank ◽  
U. Michel ◽  
H. Zieger ◽  
G. Zouhar ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Microalloyed Steel ◽  
High Strength ◽  
Experimental Simulation ◽  
Rolled Strip ◽  
Continuous Annealing ◽  
Limited Temperature ◽  
Cold Rolled ◽  
Temperature Time ◽  
Continuous Annealing Furnace

The empirical optimization of technologies for continuous annealing of cold rolled strips is very time, material and cost intensive. The properties of cold rolled strips demanded by the customer are adjustable only in relatively closely limited temperature - time regimes. Therefore, it is a complex task to increase the performance of continuous annealing furnaces without disadvantages for the product quality. This problem can be solved by nume-rical modelling the microstructure evolution in the cold rolled strip during continuous annealing combined with experimental simulation of the annealing process. At the Institut für Werkstoffwissenschaft, Technische Universität Dresden, in co-operation with EKO Stahl GmbH, Eisenhüttenstadt, a computer program signed as TFB was deve-loped. It is suited for modelling and simulating the recrystallization kinetics in cold rolled strips during continuous annealing. Furthermore, this program can be used for optimizing the annealing technology. For example, for IF steel the pre-sent paper demonstrates to what extent the performance of a continuous annealing furnace can be increased. Further results concern the improvement of the microstructure of the high strength microalloyed steel ZStE 380 Z by optimizing the annealing technology by means of experimental simulation.

UDDEHOLM VANADIS 23 SUPERCLEAN

Alloy Digest ◽  
2021 ◽  
Vol 70 (11) ◽  
Keyword(s):  
Tool Steel ◽  
High Speed ◽  
Cold Work ◽  
Cutting Tools ◽  
Heat Treating ◽  
Rolled Strip ◽  
Strip Steel ◽  
Powder Metallurgy Process ◽  
Cold Rolled ◽  
Metallurgy Process

Abstract Uddeholm Vanadis 23 SuperClean is a chromium-molybdenum-tungsten-vanadium high speed tool steel that is produced by the powder metallurgy process. This steel is similar to Type M3, Class 2 high speed tool steel, and combines high compressive strength with good abrasive wear resistance. It is suitable for demanding cold work applications like blanking of harder materials like carbon steel or cold rolled strip steel and for cutting tools. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on heat treating, machining, and surface treatment. Filing Code: TS-820. Producer or source: Uddeholms AB (a voestalpine company).

Analysis and Control the Pressed into Defects of Acid Rolling Strip Foreign Body

2013 ◽  
Vol 785-786 ◽  
pp. 1099-1103
Author(s):  
Jian Wei Yang ◽  
Jing Wu
Keyword(s):  
Foreign Body ◽  
Raw Materials ◽  
Full Range ◽  
Raw Material ◽  
Rolled Strip ◽  
Strip Surface ◽  
Whole Process ◽  
Strip Shape ◽  
Rolling Strip ◽  
Cold Rolled

There are two reasons to causes of defects of acid rolling line equipment and hot-rolled raw materials problems, so it is necessary to analyse the cold-rolled strip surface foreign body pressed into the defect microstructure and composition. It is found that this defect can be eliminated by improving the quality of the raw material, controlling strip shape, making reasonable squeezed roll transformation system, making the implementation of effective management of the full range of roll surface, carrying out the whole process of clean production, effectively controlling of the cold-rolled strip foreign body pressed into the generation of defects.

Allowable variation of cold-rolled strip transverse profiles in high tension

2010 ◽  
Vol 17 (5) ◽  
pp. 608-616 ◽  
Author(s):  
Xiao-chen Wang ◽  
Quan Yang ◽  
Xiao-zhong Du ◽  
Zheng-yi Jiang
Keyword(s):  
Rolled Strip ◽  
High Tension ◽  
Cold Rolled

Assessment of the actual shape of the hot-rolled strip cross-section contour. Part 2. Profile Classifier

2020 ◽  
pp. 33-37
Author(s):  
S. M. Belskiy ◽  
◽  
A. N. Shkarin ◽  
V. A. Pimenov ◽  
◽  
...  
Keyword(s):  
Cross Section ◽  
Middle Part ◽  
Characteristic Classes ◽  
Rolled Strip ◽  
Cross Sectional ◽  
Hot Rolled Strip ◽  
Cross Sectional Profile ◽  
Cold Rolled ◽  
Sectional Profile ◽  
Hot Rolled

The geometric parameters describing the features of the crosssectional profile of a hot-rolled strips do not give a complete picture of the flatness acquired by the cold-rolled strips rolled from these strips. An additional analysis, the results of which are presented in Message 1, showed that there are four characteristic classes of cross-sectional profiles of hot rolled strips that have a significant effect on the shape of the strips during cold rolling, three of which negatively affect the flatness of the cold rolled strips. The cross-sectional profiles of hot-rolled strips with a concave middle part and / or marginal thickenings lead to the appearance of edge waviness, peak-like cross-sectional profiles cause central warping. Therefore, the actual task is to determine the factual shape of cross-sectional profile. 6th order polynomials were used to digitalize and parameterize hot-rolled profile. As a result, we developed analytic function of the transverse profile, which keeps important information about its near-edge areas and features in the middle part. To assign a specific crosssectional profile of a hot-rolled strip to one of four characteristic classes of cross-sections, mathematical software was developed, called a classifier, and implemented with the programming environment R. To classify the profiles of the hot-rolled cross-section according to characteristic classes, a linear discriminant method was used as a machine learning method analysis. The result is an adequate mathematical model for recognizing the shape of the cross-sectional profile. The study was carried out with the financial support of the Russian Foundation for Basic Research within the framework of scientific project No. 19-38-90257.

The Shape of Cold-Rolled Strip

1970 ◽  
Vol 73 (616) ◽  
pp. 643-649
Author(s):  
Shigeto HARAGUCHI ◽  
Toshiyuki KAJIWARA ◽  
Kazunori HATA
Keyword(s):  
Rolled Strip ◽  
Cold Rolled
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