Mathematical model of short-term static strength of the overlap joint from low carbon steel brazed with tin

2021 ◽  
pp. 1-7
Author(s):  
L.P. Andreeva ◽  
B.V. Kopaev ◽  
I.L. Klimenko
Keyword(s):  
Mathematical Model ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Static Strength ◽  
Low Carbon ◽  
Short Term ◽  
Overlap Joint

Cold extrusion of conical cups with cylindrical cavity

2016 ◽  
Vol 1 (1) ◽  
pp. 8-14 ◽  
Author(s):  
Н. Коробова ◽  
N. Korobova ◽  
А. Дмитриев ◽  
A. Dmitriev ◽  
Н. Толмачев ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Mathematical Model ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Cold Extrusion ◽  
Extrusion Force ◽  
Low Carbon ◽  
Cylindrical Punch ◽  
The Mathematical Model

The method and results of the study of reverse extrusion of billet by cylindrical punch in a conical expanding matrix are described. The mathematical model, which we developed for the determination of specific extrusion force, is described too. The study by statistical method verified the adequacy of the model. This model made possible to assess the resistance of punches and showed the ability to produce deformation of a billet made of low carbon steel without heating. The developed process includes the operation of segmenting of the cylindrical workpieces from bar, heat treatment, lubrication and extrusion of the workpieces. The two-way cold extrusion of a billet is produced in a matrix alternatively by two punches. The design of the stamp is described. The stamp is specialized for reverse extrusion of a billet. In its construction the moving mechanism of action of the two alternately punches in one matrix is used.

Mathematical Model for Decarburization of Ultra-low Carbon Steel in Single Snorkel Refining Furnace

2014 ◽  
Vol 46 (1) ◽  
pp. 459-472 ◽  
Author(s):  
Zhimin You ◽  
Guoguang Cheng ◽  
Xinchao Wang ◽  
Zhe Qin ◽  
Jun Tian ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel

Numerical Analysis and Control of Gas Carburizing under Changes in Gas Compositions

2006 ◽  
Vol 522-523 ◽  
pp. 589-594 ◽  
Author(s):  
Yujiro Yokoyama ◽  
Tomoyuji Mizukoshi ◽  
Itsuo Ishigami ◽  
Tateo Usui
Keyword(s):  
Mathematical Model ◽  
Carbon Steel ◽  
Carbon Content ◽  
Present Model ◽  
Low Carbon Steel ◽  
Carbon Potential ◽  
Low Carbon ◽  
Gas Carburizing ◽  
And Control ◽  
Good Agreement

Low carbon steel, S15CK, was carburized at 1203K up to 12.93ks in a commercial furnace where RX gas converted from propane was employed as carrier gas. Gas compositions in the furnace were changed intentionally; consequently carbon potential changed from 0.8 to 1.2 mass%. The carbon content profiles were determined by a succession of grindings and carbon analyses of the ground surfaces with a vacuum type emission spectrometer. A mathematical model for calculation of carbon content profiles is proposed to describe carburizing behavior under time-variant gas compositions in a furnace. The calculated profiles were in good agreement with the experimental ones except the surface and its vicinity. This result indicates that the present model can be applied to gas carburizing in the furnace where gas compositions were changed.

Identification and Prediction of Surface Topography with Regard to Variable Conditions of Cold Rolling Process

2014 ◽  
Vol 607 ◽  
pp. 5-10
Author(s):  
Jan Valíček ◽  
Marta Harničarová ◽  
Pavel Koštial ◽  
Zora Jančíková ◽  
J. Zavadil ◽  
...  
Keyword(s):  
Mathematical Model ◽  
Carbon Steel ◽  
Surface Topography ◽  
Low Carbon Steel ◽  
Rolling Process ◽  
Low Carbon ◽  
Technological Parameters ◽  
Rolled Material ◽  
Absolute Reduction ◽  
Model Algorithm

Contribution of the work consists in creation of a mathematical model (algorithm) for prediction of technological parameters of the two-high rolling stand DUO 210 Sva and Q110 at change of the absolute reduction Δh, for example for a deep-drawing steel and of the brand KOHAL grade 697 and low carbon steel, as well as generally speaking for any rolled material. It is possible to identify and predict on the basis of this algorithm an instant state of surface topography in respect to variable technological conditions. On this basis it is then possible to calculate and plot individual main technological parameters.

Mathematical model for decarburization of ultra-low carbon steel during RH treatment

2019 ◽  
Vol 47 (6) ◽  
pp. 655-664 ◽  
Author(s):  
Yu Huang ◽  
Guo-guang Cheng ◽  
Qiming Wang ◽  
Shi-jian Li ◽  
Wei-xing Dai
Keyword(s):  
Mathematical Model ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel

Development of trimming technology for hot rolled ultra-low carbon steel

1993 ◽  
Vol 90 (7-8) ◽  
pp. 917-922
Author(s):  
Y. Matsuda ◽  
M. Nishino ◽  
J. Ikeda
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel ◽  
Hot Rolled
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