The Key Advantages of the Plasma-Powder Spray Process for the Thermal Spray Coating of Cylinder Bores in Automotive Industry

1997 ◽  
Author(s):  
G. Wuest ◽  
G. Barbezat ◽  
S. Keller
Keyword(s):  
Thermal Spray ◽  
Automotive Industry ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Spray Process

Advanced Ceramic Tribological Layers by Thermal Spray Routes

2010 ◽  
Vol 66 ◽  
pp. 106-119 ◽  
Author(s):  
Rainer Gadow ◽  
Andreas Killinger ◽  
Andreas Rempp ◽  
Andrei Manzat
Keyword(s):  
Thermal Spray ◽  
High Performance ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Industrial Applications ◽  
General Interest ◽  
Special Focus ◽  
Functional Coatings ◽  
Spray Process ◽  
Combined Coatings

Protective and functional coatings featuring outstanding tribological performance are of general interest for all kinds of industrial applications i.e for high performance automotive and mechanical applications. Thermal spray coating technologies play a key role in fabricating hard layers based on ceramic, metal - ceramic and further multiphase materials. Additional functionality can be achieved by combining these coatings with polymer based top coats with low friction coefficient or anti adhesive behaviour. Combined coatings feature also designed thermophysical and electrophysical properties. Several case studies will be discussed, ranging from automotive applications to paper and printing industry. Thermally sprayed coatings were applied using APS, HVOF and the newly developed HVSFS processes (High Velocity Suspension Spraying) with a special focus on nanoceramic feedstocks. In some applications polymer top coats with dispersed solid phases are applied to enhance functional properties. Special aspects in manufacturing engineering are addressed with particular importance not only of the influence of spray process parameters on coating properties but also of spray torch kinematic and robot trajectories on hardness, residual stress distributions, dimensional tolerances and porosity distributions will be discussed.

Thermal Spray Alternatives for Electroplated Chromium

1996 ◽  
Author(s):  
G. Irons ◽  
W. Kratochvil ◽  
M. Schroeder ◽  
C. Brock
Keyword(s):  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Ceramic Materials ◽  
Thermal Spray Coating ◽  
Waste Products ◽  
Spray Process ◽  
Arc Spray ◽  
Chromium Plating ◽  
Thermal Spray Processes

Abstract Many thermal spray coatings provide excellent wear and corrosion resistance, while providing die same surface finish offered by chromium plating. In the past, the choice between thermal spraying or plating was usually based on part size, area to be coated, cost and familiarity with one or the other method. Today, the thermal spray processes are showing greater popularity due to: ♦ New thermal spray processes and coatings with better properties ♦ Increased chromium plating costs due to stricter regulations on the process and the disposal of its waste products ♦ The closing of chromium plating facilities Thermal spraying offers an opportunity to select a coating from a wide variety of processes and materials that will meet the specific requirements of each application. While this may cause some difficulty in selecting the optimum coating, the selected thermal spray coating often has superior propolies and/or lower cost compared to chromium plating. The highest quality coatings are sprayed by the HVOF process, many with carbide containing materials. Dense plasma grayed ceramic materials offer good wear resistance plus elevated temperature capability. The most economical replacements for chromium plate are applied by the two-wire arc spray process. This paper examines the properties and costs of eight different dismal sprayed coatings and compares them with electroplated chromium.

scholarly journals Thermal Spray Techniques for Developing a Carbide Coating

2019 ◽  
Vol 8 (12S) ◽  
pp. 692-700
Keyword(s):  
Thermal Spray ◽  
Product Life Cycle ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Manufacturing Cost ◽  
Flame Spray ◽  
Coating Materials ◽  
Surface Protection ◽  
Spray Process ◽  
Coating Methods

In the industries, different components of different materials are being used in a different service environment, in the view of this requirement day by day specific surface properties are demanding by industries to enhance the product life cycle. A range of surface protection techniques are accessible for various apps with a common goal of protecting a part or object that is subjected to a chemical environment. This process leads to decreases manufacturing cost as no need to fabricate a new part. Commercially Coating materials include strong and rigid metal alloys, ceramics and polymers, composites material are available for durable protection. There are different methods of thermal spray such as flame spray, D-gun spray, high-velocity oxy-fuel Spray, Plasma Spray, and cold spray process have been introduced and investigated. Even though each method has distinct values and procedures that limit their applications. However, there are many things to understand that are used to overcome the lack of thermal spray coating methods by combining process parameters. In this article, we have discussed the various coating materials have been used commercially, and further categorized and compared various thermal spray processes.

Thermal Spraying of Aluminium Cylinder Bores by the Ford PTWA Spray Process

2006 ◽  
Author(s):  
C. Verpoort ◽  
W. Blume ◽  
R. Ehrenpreis ◽  
M. Silk ◽  
W. Polich ◽  
...  
Keyword(s):  
Thermal Spray ◽  
Thermal Spraying ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Thermal Spray Process ◽  
Spray Process ◽  
Nano Material ◽  
Future Demands ◽  
Engine Blocks ◽  
Cylinder Bore

One of the main drivers in the automotive industry is the reduction in fuel consumptions and emissions. In order to achieve these goals, the weight of the engine block as well as the friction in the cylinder bore has to be optimized. This paper describes the FORD PTWA (Plasma Transferred Wire Arc) thermal spray process that protects the aluminum cylinder bore surface against wear by a thermal spray coating. The PTWA technology was originally developed for the application in gasoline V8 engines and it will be shown in this paper how this process can be modified to apply nano-material to produce high-wear resistant, low-friction coatings for highly loaded engine blocks for future demands. A large German BMBF “Nanomobile” Research Program was started in 2005 with 13 partners (DaimlerChrysler, Opel, Porsche, Ford, Gehring, Federal Mogul, GTV Thermal Spray Systems, DURUM, RWTH University and other institutes) in order to develop next generation nano-material coatings for cylinder bores.

Preparation of spherical Y2SiO5 powders for thermal-spray coating

Particuology ◽  
2009 ◽  
Vol 7 (5) ◽  
pp. 368-372 ◽  
Author(s):  
Yangbao Qian ◽  
Linzhong Du ◽  
Weigang Zhang
Keyword(s):  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating

Investigation into the Effects of High Temperature on Mechanical Properties of Thermal Spray Coatings Applied by Plasma Spraying

2018 ◽  
Vol 284 ◽  
pp. 1151-1156
Author(s):  
Lenar N. Shafigullin ◽  
A.R. Ibragimov ◽  
A.I. Saifutdinov
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
High Temperature ◽  
Thermal Spray ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
Thermal Spray Coatings ◽  
Spray Coatings ◽  
Heat Treatment Of Coatings ◽  
Double Heat Treatment

C. C. Berndt advanced investigations of mechanical properties of thermal spray coatings under 4-point bending. He found that this investigation method is sensitive to the mechanical properties of thermal spray coatings.This paper contains the detailed investigation results for thermal spray coatings of zirconium dioxide under 4-point bending, i.e. tests of the specimens subjected to spraying at varying conditions and pre-test soaking with the various duration at 1100 °С.It was established how the mechanical properties of thermal spray coatings changed depending on the spraying mode and high temperature soaking. The test results show that the double heat treatment of coatings is more preferable than one-time heat treatment as it make the properties change linearly. It is more easily controllable during operation of the components with thermal spray coating.

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