Automatic welding of circular joints in chemical apparatus of steel 15Kh5M

1979 ◽  
Vol 15 (3) ◽  
pp. 216-217
Author(s):  
L. A. Kazakov
Keyword(s):  
Chemical Apparatus ◽  
Automatic Welding ◽  
Steel 15Kh5m

Chemical apparatus

1868 ◽  
Vol s2-46 (136) ◽  
pp. 51-53
Author(s):  
W. P. Dexter
Keyword(s):  
Chemical Apparatus

Studies on Prevention of End Cracking in One Side Automatic Welding (2nd Report)

1974 ◽  
Vol 1974 (135) ◽  
pp. 379-391 ◽  
Author(s):  
Yuzuru Fujita ◽  
Kiyoshi Terai ◽  
Hiroyuki Matsumura ◽  
Toshiharu Nomoto
Keyword(s):  
Automatic Welding

Study of the structural degradation of steel 15Kh5M upon continuous duty

2020 ◽  
Vol 86 (1) ◽  
pp. 38-43
Author(s):  
Vladimir A. Kim ◽  
Valeriya V. Lysenko ◽  
Anna A. Afanaseva ◽  
Khasan I. Turkmenov
Keyword(s):  
Grain Boundaries ◽  
Structural Changes ◽  
Structural Transformations ◽  
Structural Degradation ◽  
Structural Arrangement ◽  
Dispersed Particles ◽  
Complex Process ◽  
Multifractal Spectra ◽  
Steel 15Kh5m ◽  
Complex Indicators

Structural degradation of the material upon long-term thermal and force impacts is a complex process which includes migration of the grain boundaries, diffusion of the active elements of the external and technological environment, hydrogen embrittlement, aging, grain boundary corrosion and other mechanisms. Application of the fractal and multifractal formalism to the description of microstructures opens up wide opportunities for quantitative assessment of the structural arrangement of the material, clarifies and reveals new aspects of the known mechanisms of structural transformations. Multifractal parameterization allows us to study the processes of structural degradation from the images of microstructures and identify structural changes that are hardly distinguishable visually. Any quantitative structural indicator can be used to calculate the multifractal spectra of the microstructure, but the most preferable is that provides the maximum range of variation in the numerical values of the multifractal components. The results of studying structural degradation of steel 15Kh5M upon continuous duty are presented. It is shown that structural degradation of steel during operation under high temperatures and stresses is accompanied by enlargement of the microstructural objects, broadening of the grain boundaries and allocation of the dispersed particles which are represented as point objects in the images. The processes of structural degradation lead to an increase in the range of changes in the components of the multifractal spectra. High values of complex indicators of structural arrangement indicate to an increase in heterogeneity and randomness at the micro-scale level, but at the same time, to manifestation of the ordered combinations of individual submicrostructures. Those structural transformations adapt the material to external impacts and provide the highest reliability and fracture resistance of the material.

Automatic Welding Technique with the Skilled Welding Operators Technique

2019 ◽  
Vol 88 (7) ◽  
pp. 527-531 ◽  
Author(s):  
Yasutaka BANNO ◽  
Kazuhiko KAMO ◽  
Naoki SUDA ◽  
Kenta NAKAO ◽  
Koki TATEISHI
Keyword(s):  
Automatic Welding ◽  
Welding Technique

An automatic welding defect location algorithm based on deep learning

2021 ◽  
Vol 120 ◽  
pp. 102435
Author(s):  
Lei Yang ◽  
Huaixin Wang ◽  
Benyan Huo ◽  
Fangyuan Li ◽  
Yanhong Liu
Keyword(s):  
Deep Learning ◽  
Automatic Welding ◽  
Defect Location ◽  
Location Algorithm ◽  
Welding Defect

Properties of commercial enamels for chemical apparatus

1969 ◽  
Vol 26 (9) ◽  
pp. 527-529 ◽  
Author(s):  
V. V. Vargin ◽  
L. Z. Zasukhina
Keyword(s):  
Chemical Apparatus
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