scholarly journals Influence of electric pulse treatment on structure and hardness of cryorolled aluminum

2021 ◽  
Vol 11 (3) ◽  
pp. 351-356
Author(s):  
Irshat Valeev ◽  
Aygul Valeeva ◽  
Rafis Ilyasov ◽  
Elena Avtokratova ◽  
Stanislav Krymskiy ◽  
...  
Keyword(s):  
Electric Pulse ◽  
Pulse Treatment ◽  
Electric Pulse Treatment

scholarly journals Effect of Electric Pulse Treatment on Hot-Dip Aluminizing Coating of Ductile Iron

Materials ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 7219
Author(s):  
Jie Dong ◽  
Shouqian Yuan ◽  
Yongtao Sun ◽  
Shuangping Yang ◽  
Xiangdong Xing ◽  
...  
Keyword(s):  
Cast Iron ◽  
Electric Pulse ◽  
Liquid Aluminum ◽  
Interface Reaction ◽  
Nodular Cast Iron ◽  
Alloy Layer ◽  
Solidification Structure ◽  
Pulse Treatment ◽  
Treated Sample ◽  
Electric Pulse Treatment

In this paper, hot-dip aluminizing of ferrite nodular cast iron was carried out after treating liquid aluminum with different electrical pulse parameters. Compared with that of conventional hot-dip aluminizing, the coating structure of the treated sample did not change, the surface was smooth and continuous, and the solidification structure was more uniform. When high voltage and large capacitance were used to treat the liquid aluminum, the thickness and compactness of the coating surface layer increased. The thickness of the alloy layer decreased, and, the compactness and the micro hardness increased, so the electric pulse had a certain inhibition on the formation of the alloy layer. The growth kinetics of the alloy layer showed that the rate-time index decreased from 0.60 for the conventional sample to 0.38 for the electric pulse treated sample. The growth of the alloy layer was controlled by diffusion and interface reaction, but only by diffusion. The AC impedance and polarization curves of the coating showed that the corrosion resistance of hot-dip coating on nodular cast iron was improved by electric pulse treatment.

Analysis of the results of the influence of electric pulse treatment on purulent waste

2021 ◽  
pp. 49-57
Author(s):  
А. Chmil ◽  
◽  
Y. Oliinyk ◽  
Keyword(s):  
Wastewater Treatment ◽  
Oxygen Consumption ◽  
Electric Pulse ◽  
Pulse Treatment ◽  
Urgent Problem ◽  
High Quality ◽  
Industrial Enterprises ◽  
Treatment Technologies ◽  
Electrohydraulic Shock ◽  
Electric Pulse Treatment

High standards of sanitary and epidemiological safety at large pig-feeding complexes are one of the prerequisites for the production of high-quality pork. Livestock complexes are a source of accumulation of a large amount of manure runoff. Now there is a large tendency of environmental destruction and irreversible loss of natural resources due to pollution by waste from livestock enterprises. The use of new technologies for treating wastewater from food enterprises, industrial, livestock breeding is an urgent problem. The use of accelerated composting of the dewatered part of the effluent is one of the ways to increase the efficiency of using waste from pig farms. For this, scientists have developed a standard series of installations that ensure the conversion of waste into high-quality organic fertilizer, however, the issue of further use of the liquid part of the waste has not been fully worked out. That is why the use of the latest wastewater treatment technologies from industrial enterprises, food and agriculture is an urgent problem. One of the promising ways to improve treatment technologies for organic pollution is the use of cavitation phenomena and electrohydraulic shock in the aquatic environment. Analysis of existing wastewater treatment technologies shows that today environmentally friendly methods are being intensively developed, which are an alternative to chlorination and other chemicals. In recent years, the development and research of the operation of electro-pulse methods for disinfecting liquids, based on the creation of a high-voltage discharge in a liquid, the so-called electrohydraulic effect, have been actively pursued. Taking into account the long-term studies of the processes occurring during the electrohydraulic shock, the implementation of this method has not gone beyond the bench tests and is at the development stages. To study the effect of electrohydraulic treatment on chemical transformations of organic substances and disinfection, an experimental electric pulse installation has been developed. Waste waters of livestock complexes are characterized by organic and mineral pollution, they can have a different composition, which makes it impossible to determine the individual components of pollution. Therefore, it became necessary to find such indicators that would characterize certain properties of water without special identification of individual substances. To assess the efficiency of the electric pulse treatment of manure runoff, the BOD indicator was chosen - biological oxygen consumption and dry residue. Key words: slurry, pig feeding complex, electric pulse treatment, biological oxygen consumption

scholarly journals Electric pulse treatment of welded joint of aluminum alloy

2013 ◽  
Vol 0 (4(46)) ◽  
pp. 73-82 ◽  
Author(s):  
I. A. Vakulenko ◽  
Yu. L. Nadezhdin ◽  
V. A. Sokirko ◽  
I. P. Volchok ◽  
A. A. Mitiaev
Keyword(s):  
Aluminum Alloy ◽  
Welded Joint ◽  
Electric Pulse ◽  
Pulse Treatment ◽  
Electric Pulse Treatment
Sign in / Sign up

Export Citation Format

Share Document