scholarly journals Processes and technologies of cold gas dynamic spraying of products agricultural equipment

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Iryna Dobrova

Modern equipment of processing industry, animal husbandry, bioenergy complexes is used for processing, storage or transportation of aggressive substances. Functional coatings made of inert materials do not enter into any chemical reactions with food, processed products, livestock waste, acids and other aggressive media. There is a question of protection of the equipment of the processing industry, animal husbandry, bioenergy complexes from aggressive environments by application of processes of a cold gas-dynamic spraying. This is an urgent problem for the development of protective technologies and appropriate equipment for the implementation of the process of creating functional coatings

Author(s):  
N. Veselovska ◽  
R. Iskovich-Lototsky

Modern equipment of processing industry, animal husbandry, bioenergy complexes is used for processing, storage or transportation of aggressive substances. Functional coatings made of inert materials do not enter into any chemical reactions with food, processed products, livestock waste, acids and other aggressive media. There is a question of protection of the equipment of the processing industry, animal husbandry, bioenergy complexes from aggressive environments by application of processes of a cold gas-dynamic spraying. This is an urgent problem for the development of protective technologies and appropriate equipment for the implementation of the process of creating functional coatings


2020 ◽  
Vol 62 (1-2) ◽  
pp. 90-94
Author(s):  
D. A. Gerashchenkov ◽  
A. Yu. Askinazi ◽  
M. L. Fedoseev ◽  
E. Yu. Gerashchenkova ◽  
A. M. Makarov

2019 ◽  
Vol 822 ◽  
pp. 774-780
Author(s):  
A.D. Bykova ◽  
B.V. Farmakovsky ◽  
M.A. Markov ◽  
A.N. Belyakov ◽  
A.M. Makarov ◽  
...  

In the article, the authors examined the technological aspects of obtaining a functional alloy based on silver alloyed with chromium, zirconium, rhenium and rare earth elements (cerium, lanthanum, yttrium). A technology has been developed for producing powder from this alloy and nanostructured functional coatings based on it using the method of cold gas-dynamic spraying.


Author(s):  
Nataliia Veselovska ◽  
Oleg Gaidamak ◽  
Mykhailo Karpiichuk ◽  
Jylia Kucherenko

The article is devoted to the technology of cold gas-dynamic spraying - a relatively new technology for creating functional coatings in which narrowed-expanding nozzles (De Laval nozzles) are used, in which solid powders are sprayed at or close to supersonic speed in the direction of the substrate, where they plastically deform and adhere. Cold gas dynamic spraying is an innovative process that has received widespread scientific interest and industrial applications in the automotive, aerospace and biotechnology industries in recent years. Spraying various powder materials in this way provides protection against corrosion and can increase the mechanical strength and wear resistance of details. With that method it is possible to create functional coatings with different thermal conductivities and electrical conductivities, which can be used as insulation materials, conducting and isolation surface layers of parts, coatings for controlling gaps, restoring and repairing details. The article discusses modern developments in the field of experimental analysis of technologies and processes of cold gas-dynamic spraying, the systems of cold gas-dynamic spraying and coating formation are determined and the parameters and principles of the process are described. The installation for spraying surfaces developed at VNAU is presented and researches and the analysis of possibility of use of a method of a cold gas-dynamic spraying for restoration of details of autotractor equipment of agricultural purpose are carried out.


Author(s):  
A. M. Makarov ◽  
V. R. Nikitina ◽  
D. A. Gerashchenkov ◽  
A. F. Vasiliev

This study developed practical recommendations for using the method of cold gas dynamic spraying to obtain functional coatings in a production environment using powders of nickel, titanium and aluminum of the grades: PNE-1 (Ni), PTOM-1 (Ti) and PA-VCh (Al). The temperature and speed parameters of the process were optimized using mechanical mixtures (Ni + Ti) and (Ni + Al) as an example. High adhesion of the coating and coefficient of powder use were ensured with maximum productivity at the DIMET-403 installation.


Author(s):  
A. F. Vasiliev ◽  
E. L. Gyulikhandanov ◽  
E. A. Samodelkin ◽  
B. V. Farmakovsky

This paper presents the results on the development of an alloy in the tellurium - copper - cerium system used for the manufacture of functional coatings using the technologies of supersonic cold gas-dynamic spraying. Coatings from the specified alloy are used for the manufacture of photocathodes of photoelectronic devices operating in the UV spectral region.


Author(s):  
T. I. Bobkova ◽  
A. N. Beliakov ◽  
D. A. Gerashchenkov ◽  
E. Yu. Gerashchenkova ◽  
A. F. Vasiliev ◽  
...  

The features of the process of obtaining a powder composition from an alloy based on the Al–Zn– Sn system are studied. A technology has been developed for obtaining powders of optimal composition, including Al; 6–11% Zn; 6–11% Sn; 2–4% Si; 0.6–0.8% Ce. Functional wear-resistant coatings recommended for practical use in products of precision and power engineering were made by supersonic cold gas dynamic spraying.


2012 ◽  
Vol 53 (6) ◽  
pp. 948-953 ◽  
Author(s):  
A. P. Alkhimov ◽  
V. F. Kosarev ◽  
S. V. Klinkov ◽  
A. A. Sova

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