Ionic nitriding of the Kamaz truck parts

1982 ◽  
Vol 24 (6) ◽  
pp. 391-393
Author(s):  
L. I. Kuz'mich ◽  
V. B. Styrov ◽  
F. N. Nurgayanov
Keyword(s):  
Ionic Nitriding ◽  
Kamaz Truck

scholarly journals The Joint Effects of Nitriding and Parameters Related to the Destabilisation of Austenite on Wear Resistance in White Cast Iron with 25% Cr

Metals ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 85
Author(s):  
Alejandro González-Pociño ◽  
Florentino Alvarez-Antolin ◽  
Juan Asensio-Lozano
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
White Cast Iron ◽  
Nitrided Layer ◽  
Erosive Wear ◽  
Air Cooling ◽  
Cast Irons ◽  
Eutectic Carbides ◽  
Noticeable Increase ◽  
Ionic Nitriding

In this article, the effects of an ionic nitriding treatment are analysed, together with deliberate variation of different thermal parameters associated with the destabilisation of austenite, on erosive wear resistance of white cast irons with 25% Cr. The methodology followed in this research was an experimental design, where six factors were analyzed by performing eight experiments. The thickness of the nitrided layer is much smaller than in white cast iron with lower percentages in Cr, never reaching 20 microns. The nitriding treatment entails considerable softening of the material underneath the nitriding layer. This softening behaviour becomes partially inhibited when the destabilisation temperature of austenite is 1100 °C and dwell times at such temperature are prolonged. This temperature seems to play a significant role in the solubilization of non-equilibrium eutectic carbides, formed during industrial solidification. The nitriding treatment leads to additional hardening, which, in these cases, favours a second destabilisation of austenite, with additional precipitation of secondary carbides and the transformation of retained austenite into martensite. Despite softening of the material, the nitriding treatment, together with air-cooling after destabilisation of the austenite, allows a noticeable increase in resistance to erosive wear.

scholarly journals INVESTIGATION OF THE LOADING OF THE LEADING AXLES OF A KAMAZ TRUCK

2020 ◽  
pp. 111-118
Author(s):  
A.Yu. Barykin ◽  
◽  
R.Kh. Takhaviev ◽  
S.V. Gorbachev ◽  
◽  
...  
Keyword(s):  
Kamaz Truck

scholarly journals Metallographical Aspects of the Application of Special Paint Layers for the Protection of Machine Part Sections against the Effect of lonitriding

2019 ◽  
Vol 290 ◽  
pp. 03002
Author(s):  
Marius Bibu ◽  
Florin Ciofu
Keyword(s):  
Copper Powder ◽  
Machine Part ◽  
Plasma Nitriding ◽  
Metallic Component ◽  
Copper Powders ◽  
Ionic Nitriding ◽  
Local Protection ◽  
Before And After ◽  
Gas Volume ◽  
Physical And Chemical

The paper presents aspects concerning the appreciation of the protection through special paints based on copper powders used against plasma nitriding. First of all the choice of copper is motivated as an important metallic component of protecting paints, with the characteristics that the copper presents in the context of the physical and chemical phenomena (from the cathode and from gas volume) specific for the ionic nitriding process. The paper contains comparatively some characteristics (the duration of drying on the coat, the compatibility of the components, the capacity of extension and of avoiding the leakage, the power of covering, the capacity of joining, and the emitting of gases, the resistance in friction before and after the ionic nitriding, the way of obtaining the copper powder and its quality, the capacity of removing after ionic nitriding etc.) of the mixtures, for the protection against ionic nitriding. Following the researches on making more efficient technologies of local protection of metal pieces on certain areas with isolated layers against plasma nitride, the authors realized 2 different kinds of special original paints noted V-1 and V-2 used for this purpose. These paints are made having a basis of copper powder combined with magnesium oxide and polystiren dissolved in carbon chloride.

Duplex treatment of 32CrMoV13 steel by ionic nitriding and triode sputtering: application to wood machining

Wear ◽  
2003 ◽  
Vol 255 (7-12) ◽  
pp. 1438-1443 ◽  
Author(s):  
L. Chekour ◽  
C. Nouveau ◽  
A. Chala ◽  
M.-A. Djouadi
Keyword(s):  
Ionic Nitriding ◽  
Duplex Treatment ◽  
Wood Machining

Ionic nitriding in cathodic cage of AISI 420 martensitic stainless steel

2008 ◽  
Vol 24 (1) ◽  
pp. 52-56 ◽  
Author(s):  
R. R. M. de Sousa ◽  
F. O. de Araújo ◽  
K. J. B. Ribeiro ◽  
T. Dumelow ◽  
J. A. P. da Costa ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Martensitic Stainless Steel ◽  
Aisi 420 ◽  
Ionic Nitriding

scholarly journals HARDWARE AND SOFTWARE ENGINE EMULATION IN THE AUTOPILOT SYSTEMS

2018 ◽  
Vol 20 (5-6) ◽  
pp. 67-74 ◽  
Author(s):  
M. F. Sadykov ◽  
A. V. Golenishchev-Kutuzov ◽  
N. K. Andreev
Keyword(s):  
Control System ◽  
Emergency Operation ◽  
Technical Condition ◽  
Labor Input ◽  
Sensors And Actuators ◽  
Software Complex ◽  
Latent Defects ◽  
Control Units ◽  
Kamaz Truck ◽  
Autopilot Systems

Now a number of the leading firms work on creation of an automobile autopilot. The authors of the presented article offer to complement the system of an autopilot with the control system of the car technical condition. The developed hardware and software complex allows working with virtual mathematical model of the gas engine of the KamAZ truck and can be recustoized under different modifications of gas and diesel engines. At the same time by means of this complex there is an opportunity to reveal the latent defects of a control system and to reduce labor input of calibration procedures. The hardware and software allows testing electronic control units in standard and emergency operation modes of sensors and actuators, thereby providing compliance to the modern Russian and international requirements to control systems of cars.

scholarly journals Energy and gas dynamic characteristics of ionization nitrogen installations of industrial type

2018 ◽  
Vol 63 (3) ◽  
pp. 342-350
Author(s):  
M. N. Bosyakov ◽  
A. A. Kozlov
Keyword(s):  
Electric Power ◽  
Voltage Drop ◽  
Industrial Applications ◽  
Melt Temperature ◽  
Vacuum Chambers ◽  
Power Characteristics ◽  
Ionic Nitriding ◽  
Heat Shielding ◽  
Cold Walls ◽  
Experimental Researches

The work provides the analysis of power characteristics of the industrial equipment – ionic nitriding applications – with different types of vacuum chambers – with hot and cold walls. The calculations results and experimental researches of thermal balance of the system “melt-wall chamber” at the process of plasma nitration for industrial applications are given. The work examines the influence of heat-shielding screens quantity in the applications with cold walls on the internal screen temperature and power of thermal losses at warming up parts melt and at its isothermal endurance. It has been displayed the significant influence of the discharge chamber geometry on the discharge power value which is necessary for the melt warming up and its exposition at the certain temperature – the less are geometrical sizes of the chamber (diameter and height), the smaller is the power of the smoldering discharge which is required for ensuring necessary melt temperature. It is shown that at sufficient melt parts distance from the chamber walls, the voltage drop on the skeleton of the smoldering discharge can be tens volts that causes the decrease of cathodic falling potential and, respectively, the increase of the electric power which is required to maintain necessary melt temperature in comparison to melt which is as close as possible to chamber walls. It leads to the fact that at more dense loading, smaller specific consumption of the electric power to ensure the necessary depth of the nitrated layer is required; at the same time the specific energy consumptions by the melt temperature of 525–530 °C are 0.6–1.6 kW∙h/kg, depending on the loading extent of the chamber. It has been displayed that at ionic nitration, the value of working gas pressure must provide the deviance of the smoldering discharge i. e. the whole area the cathode –melt must be captured by the discharge luminescence.

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