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The Influence of the Content and Nature of the Dispersive Filler at the Formation of Coatings for Protection of the Equipment of River and Sea Transport

SAE International Journal of Materials and Manufacturing

Ivano-Frankivsk National Medical University, Ukraine-Liubov Poberezhna
Kherson State Maritime Academy, Ukraine-Oleksandr Sapronov, Andriy Buketov, Anna Sapronova, Vitalii Sotsenko, Mykola Brailo, Serhii Yakushchenko, Serhii Smetankin, Andriy Kulinich, Viacheslav Kulinich
  • Journal Article
  • 05-13-01-0006
Published 2020-01-23 by SAE International in United States
To protect ship equipment of river and sea transport, it is suggested to use polymeric protective coatings based on epoxy diane oligomer ED-20, polyethylene polyamine (PEPA) curing agent and filler, which is a departure from industrial production. Thus the purpose of the work is analysis of major dependency of the properties on the content of fillers that allowed to revealed the critical filler content (furnace black) in composites to form a protective coating with the required set of characteristics. The infrared (IR) spectral analysis was used to investigate the presence of bonds on the surface of particles of the PM-75 furnace black, which allows us to assess the degree of cross-linking of the polymer. The influence of the content of dispersed furnace black on the physicomechanical and thermophysical properties and the structure of the protective coating is investigated. For the formation of the coating with increased adhesive properties, the optimum content of the additive is q = 25 parts by weight (pts.wt.), due to the increase in the number of C—O, C—C, C═O, C═C, C═O,…
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OEM Plastic Parts Repair

Motor Vehicle Council
  • Ground Vehicle Standard
  • J1573_201910
  • Current
Published 2019-10-24 by SAE International in United States
This SAE Recommended Practice defines the information required to repair the various types of plastics found on modern light-duty highway vehicles. Information is included for the repair and refinishing of most plastic body parts, both interior and exterior. Repair information is described for all commonly used plastics including, but not limited to, polyurethanes, polycarbonate blends, modified polypropylenes, polyethylenes and nylons. Repairs can be made to these types of plastics using two-part (2K) repair adhesives, plastic welding, and other materials available from body shop suppliers. When a new type of plastic is being introduced to the market through a new vehicle program, specific repair and refinishing procedures should be provided, following the format in this document. Sheet-molded compounds (SMC), fiber-reinforced plastics (FRP) and carbon fiber reinforced plastics can also be repaired using slightly different procedures and repair materials.
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The Selection of Adhesives for the Attachment of Exterior Aftermarket Accessories

Motor Vehicle Council
  • Ground Vehicle Standard
  • J2375_201910
  • Current
Published 2019-10-03 by SAE International in United States
The scope of this SAE Recommended Practice is to provide a mechanism for the proper surface preparation and selection of adhesive for the attachment of exterior aftermarket accessories.
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Local Weakening of Honeycomb Core for Improved Surface Quality and Bonding in Co-Cured Sandwich Panels

Hamburg University of Technology-Henrik Eschen, Thorsten Schüppstuhl
Published 2019-09-16 by SAE International in United States
Sandwich panels made of Nomex honeycomb core and fiber reinforced face sheets are a major component of aircraft interior parts. A common way to locally increase the strength of such panels, e.g. for load introduction, is the local thickening of the face sheets with additional prepreg layers. Curing of strengthened panels without further processing of the core leads to higher flatness tolerances as well as residual stresses. Machining of the core in the strengthened areas is possible, but expensive due to high machine costs and additional cleaning processes. In this paper a new process for the reduction of the residual stresses in strengthened areas, as well as improved bonding between core and face sheets is presented. The process is based on local reduction of the compressive strength in the surface area of the honeycomb core, which allows for controlled, irreversible deformation at curing pressure. For the reduction of compressive strength, a concept based on a robot guided tool with multiple blades is presented. The process parameters impacting the compressive strength after weakening are derived based…
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New and Newly Retreaded Tire Appearance

A-5C Aircraft Tires Committee
  • Aerospace Standard
  • ARP6307A
  • Current
Published 2019-07-02 by SAE International in United States
This document is for establishing and addressing anomalies on appearance of new and newly retreaded tires prior to installation on aircraft. It is intended to use cosmetics as well as functionality to make a determination of acceptability. However, if cosmetic appearance is not a requirement, use the inspection criteria from ARP6225. This ARP does not supersede (E)TSO-C62 minimum requirements, including marking requirements.
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Test Method for Measuring Wet Color Transfer Characteristics

Textile and Flexible Plastics Committee
  • Ground Vehicle Standard
  • J1326_201906
  • Current
Published 2019-06-25 by SAE International in United States
This procedure describes a method of measuring the resistance to wet color transfer of materials such as textiles, leather, and composites.
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Sealing Compound Aircraft Firewall, Silicone

AMS G9 Aerospace Sealing Committee
  • Aerospace Material Specification
  • AMS3374F
  • Current
Published 2019-05-31 by SAE International in United States
This specification covers six types of silicone sealing compounds curing to elastomeric materials.
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For bonding dissimilar materials, adhesives can be a sticking point-or lack of it

Automotive Engineering: May 2019

Stuart Birch
  • Magazine Article
  • 19AUTP05_14
Published 2019-05-01 by SAE International in United States

As the auto industry adopts an increasingly wide mix of materials in its pursuit of constantly tougher weight-saving and service-longevity targets, joining mixed materials using precisely-compatible adhesives is a crucial aspect of the formula. Considering the expanding role of adhesives in the mixed-materials matrix, a new warning to design engineers comes from Peter Swanson, Managing Director of adhesives specialist Intertronics, of the need to fully appreciate through-life performance.

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High Accurate Heat Transfer Tasks on Example of Body in White Drying Process in Paint Shop

ESS Engineering Software Steyr GmbH-Saurabh Bhardwaj, Ralf Euser, Alexander Stadik, Ernesto Monaco, Vikas Kumar Sharma, Ravi Kanth Borra
Published 2019-04-02 by SAE International in United States
A challenging problem for any car industry is to completely dry the paint throughout the car body. The fulfillment of this task primarily depends on the accurate heat transfer between the car body and the fluid surrounding it. In the present study, we study the effect of thermal conductivity within the layers of thin sheets of the car body on transient heat transfer with the lattice Boltzmann method (LBM). The present investigation has been conducted using a three-dimensional (3D) incompressible thermal LB model using the D3Q19 lattice structure. A double distribution function approached is used where one distribution function stands for density distribution and other for temperature distribution. This model is also coupled with the multiple relaxation time (MRT) to increase the stability and accuracy of the solution. In our study, we first consider the heat transfer due to conduction and convection on the surface of car. Later, a test case has been set up for assembly line paint bake oven in which a car passes slowly through a large array of hot air jets.…
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Now You See It, Not You Don’t

Cold Jet LLC-Steve Wilson
Published 2019-04-02 by SAE International in United States
No matter how large or small of an operation, there is a great demand for automotive component manufacturers, increase the productivity of their equipment, improve the quality of their parts, all the while lowering costs. This can be a balancing act between using the most effective technology while working within a shrinking budget.This presentation discusses the advantages of dry ice cleaning solutions in a variety of automotive applications: 1) as a replacement for solvent and/or mechanical cleaning for the removal of contaminants from tooling, at operating temperature and while it is still in the production machine, 2) deflashing plastic molded parts, 3) removing excess film from IMD parts, and 4) the surface preparation of molded plastic parts prior to painting or coating, replacing traditional aqueous washing methods and subsequent drying.Supporting research from several independent studies (Kettering University, Materials & Process Associates, etc.) will be presented along with industry case studies, pictures and video clips to demonstrate the various proven solutions in the automotive industry.The reader will achieve an understanding of how to improve the environmental…
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