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This specification covers the engineering requirements for applying tungsten carbide/cobalt coatings to metal parts by the detonation process and the properties of such coatings.

This specification covers an unpigmented silicone-resin-base coating material.

In a car body painting system, the contribution ratio of phosphate treatment as the paint base coating reaches about 20% in corrosion resistance according to the analysis of variance of experimental results. ...With the zinc phosphate type conversion treatment, coating mainly consisting of hopeite and phosphophyllite is formed on the surface of steel sheet. ...With an electrodeposition paint base, corrosion resistance becomes higher as the content of phosphophyllite in the coating becomes higher. The reason for this may be sought in the dissolution of phosphate coating when ED paint is applied (solubility) and when it is decomposed during subsequent baking (heat resistance).

These additional tests can provide informational data for characterizing the coatings and may be useful to operators when evaluating the coatings....This SAE Aerospace Information Report (AIR) provides descriptions of test methods for determining if an aircraft surface coating of any thickness has adverse effects on aircraft deicing/anti-icing fluids with respect to fluid holdover time performance and aerodynamic performance. ...Although not the primary mandate of the G-12 Aircraft Ground Deicing Committee, this document also provides descriptions of suggested test methods for evaluating aircraft surface coatings with respect to durability, hardness, weathering, aerodynamic drag, ice adhesion, ice accumulation, contact angle, and thermal conductivity.

CLADDING of steel parts or assemblies with aluminum, through the use of a recently developed process which has been in commercial operation for two years, is described in this paper. Successful plant and field experience indicates that it can be applied at room and elevated temperatures in various types of atmospheres. This new process was originally designed to offer corrosion resistance caused by the collection of leaded fuel gas condensates in exhaust systems, and for other parts requiring high-temperature oxidation resistance up to 1600 F. However, it has since been used in a wide variety of applications.

Flame spray coating conditions, that allow the double layer coating by the same spray nozzle, have been determined for each layer. ...The authors, et al. have succeeded in the practical application of the abradable flame spray coating, used in aircraft engines for the prevention of air leakage and the improvement of efficiency, to automobile turbochargers for the first time in the world. ...In this paper, equations of relations between various flame spray coating conditions and the quality of coated film, which were derived from measured results, will be described.

In this application, it represents an alternative to a coating system wherein a zinc-rich paint is applied over a terne coating. This paper discusses certain aspects of the production, product testing and performance of Galfan coated tubing produced by Arc Tube Inc., Sault Ste. ...Galfan is an ILZRO-developed zinc-base alloy for coating ferrous products. It is essentially a zinc/aluminum alloy of eutectic composition (5.0% Al), to which has been added a small amount (nominally 0.05%) of cerium and of lanthanum. ...It is essentially a zinc/aluminum alloy of eutectic composition (5.0% Al), to which has been added a small amount (nominally 0.05%) of cerium and of lanthanum. The coating has excellent ductility and corrosion resistance. These qualities make it an ideal candidate for automotive tubing applications; it is currently being used in automotive transmission-oil cooler lines.

As a result of our extensive research into conversion coatings we have succeeded in developing a completely new conversion coating system. The new conversion coating system uses completely different components to zinc phosphating and by comparison to zinc phosphating, the concentration of heavy metal ions is 70% lower and furthermore, no sludge is generated. ...The new conversion coating film is highly resistant to acids and alkalis. As a result the new conversion coating system achieves a very high corrosion resistance. ...The new conversion coating system uses completely different components to zinc phosphating and by comparison to zinc phosphating, the concentration of heavy metal ions is 70% lower and furthermore, no sludge is generated.

Direct Coating is a new processing technique which applies a single-layer polyurethane coating directly to a plastic part within a 2-shot molding cycle. ...A 2-shot molding prototype tool was made, and part molding trials were conducted using metallic pigmented polyurethane coating. Initial molding trials showed promising results of the coating quality and pigment dispersion. ...The advantages of Direct Coating over traditional paint are improved surface quality, scratch resistance, and cost-effective processing.

Environmental influence on the suit temperature and heat flux can then he minimized with a high reflectance coating. Candidate coatings have been identified and ranked on the basis of thermophysical properties; wear, corrosion and atomic oxygen degradation resistance; and coating process and cost. ...Candidate coatings have been identified and ranked on the basis of thermophysical properties; wear, corrosion and atomic oxygen degradation resistance; and coating process and cost. Laboratory determination of properties, thermal cycling and wear resistance tests are underway to identify the optimum coating. ...Laboratory determination of properties, thermal cycling and wear resistance tests are underway to identify the optimum coating. A computer model is being developed to evaluate various environmental configurations. Preliminary results are presented here.

Over the past 60 years, chemical companies have been supplying automotive manufacturers state-of-the-art zinc phosphate conversion coatings which, when applied properly to a metal surface promote excellent paint adhesion and corrosion resistance. ...Phosphate conversion coatings have undergone many transformations over the years. Now some of their essential components and byproducts are being more tightly regulated under new environmental guidelines. ...The metal pretreatment industry is now challenged with the task to replace the traditional zinc phosphate coating with the next generation product. This paper will examine the advantages of a new generation conversion coating based on zirconium oxide.

It will be presented results of different coating systems, designed for each application. It is also discussed the coating engineering required due to the particular running conditions of each product. ...A lot of attention has been given to the development of new materials and coatings that not only minimize friction, but also improve wear resistance. Amorphous carbon (a-C:H, a-C:H:Me and a-C:H;X) known as DLC (Diamond-Like-Carbon) coatings have a high potential to fulfill these requirements, providing significant potential for a solution under these demanding service conditions. ...Amorphous carbon (a-C:H, a-C:H:Me and a-C:H;X) known as DLC (Diamond-Like-Carbon) coatings have a high potential to fulfill these requirements, providing significant potential for a solution under these demanding service conditions.

Currently there are three different types of bore solutions for small engines. 1) High silicon aluminum running with cast iron piston rings and a coated piston 2) Cast iron liner fitted to an aluminum block or cylinder 3) Nickel composite coating on an aluminum liner, cylinder, or block. A new method and apparatus has been developed to reduce the manufacturing tasks and costs of a bore solution. ...This new method involves turning a liner from aluminum and coating with nickel-silicon carbide. For the finish honing, an apparatus was developed that enables a liner to be honed for interference or clearance bonded fit into the block or the cylinder. ...The first part addresses the manufacturing and installation of liners and the second part gives engine designers some specifics of nickel ceramic composite electrolytic coatings.

In the present social environment, automobile demands further reduction of fuel consumption and light weight. Now that the reduction of vehicle weight is being pursued, even a slight looseness in each element of an automobile may become a source of vibration and noise due to the lowered rigidity of such an automobile. The quietness of vehicles is urged, spline backlash in the spline mechanism exhibits a problem in some cases. A propeller shaft, a part of the automobile driving system, also has a sliding spline mechanism as shown in Fig. 1. Such a propeller shaft is required to have functions of transmitting high torque driving forces, and absorbing the variation of the vehicle driveline overall length at the same time. Vibration and noise are apt to occur if when torque is applied, there is a significant balance fluctuation or great sliding resistance due to spline backlash.

We have investigated the use of commercially available thin and hard coatings (TiN, TiCN, TiAlN, and CrN) to mitigate the negative effects of EGR on wear. In friction and wear tests with the four-ball machine, we found that all the four coatings deposited on M-50 steel significantly reduced wear in EGR-contaminated oils when compared with uncoated M50 steel balls. ...In friction and wear tests with the four-ball machine, we found that all the four coatings deposited on M-50 steel significantly reduced wear in EGR-contaminated oils when compared with uncoated M50 steel balls.

Future catalyst systems need to be highly efficient in a limited packaging space. This normally leads to a design where the flow distribution, in front of the catalyst, is not perfectly uniform. Measurements on the flow test bench show that the implementation of perforated foils for the corrugated and flat foils has the capability to distribute the flow within the channels in the radial direction so that the maximum of the given catalyst surface is of use, even under very poor uniformity indices. Therefore a remarkable reduction in back pressure is measured. Emission results demonstrate cold start improvement due to reduced heat capacity. The use of LS - structured ( Longitudinal structured ) corrugated foils creates a high turbulence level within the single channels. The substrate lights-up earlier and the maximum conversion efficiency is reached more quickly.

The size and shape of these lobes were found to be relatively invariant to coating weight over the range of coating weights studied. However, the degree of scatter in the data increased with coating weight. ...However, the degree of scatter in the data increased with coating weight. Surprisingly, decrease in coating weight did not result in longer electrode life. ...The influence of coating weight on the weldability lobe and electrode life performance of a zinc-coated steel was studied.

The coating of body components in the automobile industry is carried out preferentially on the main paint line, thereby avoiding additional coating costs and color shade differences. ...The coating of body components in the automobile industry is carried out preferentially on the main paint line, thereby avoiding additional coating costs and color shade differences. Unfortunately, very few plastics exist which do not deform by temperatures of 140 - 170 °C. ...The presentation indicates possibilities for the on-line coating of plastics components by means of modifications to the present painting methods and materials.

Among them, plasma transferred wire arc (PTWA) thermal spraying coating is becoming popular. Plasma electrolytic oxidation (PEO) coating is also proposed for increasing the wear resistance of aluminum alloy and reducing the friction between the cylinder and piston. ...In this work, a PEO coating with a thickness of ∼20 μm was prepared, and a high speed pin-on-disc tribometer was used to study the tribological behavior of the coating at oil lubricant conditions. Different surface roughness of the coating and a large range of the sliding speeds were employed for the tests. ...In this work, a PEO coating with a thickness of ∼20 μm was prepared, and a high speed pin-on-disc tribometer was used to study the tribological behavior of the coating at oil lubricant conditions.