Automotive & Transportation Equipment

automotive & transportation Industries overview 

Setting the highest quality standards on the road

From synchronizer rings to turbocharger nozzles to piston rods, we provide industry-leading coating services to prevent abrasion, corrosion and wear, deliver electrical insulation and improve friction control. And because our application process follows our strict Operational Excellence system, you’ll get consistent, uniform results even in high volumes.

Prevent corrosion, arcing and abrasion, improve friction control and enhance overall productivity with our high-quality coatings developed to meet your unique specifications.  

Coating Services for the Automotive Industry (1.3 MB)

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Coating Services for the automotive & transportation industry

Abrasive Wear, Fretting and Clearance Control for Diesel Engine Turbocharger Nozzles

A turbine-driven forced-induction turbocharger increases an engine’s efficiency and power by forcing extra air into the combustion chamber. But while the compressed air generates greater mechanical power, it can also result in abrasive and fretting wear as the tips of the turbocharger nozzle gradually erode—eventually causing the engine to seize. To protect the nozzle tips, our Tribomet electrodeposited composites form an adherent oxide that acts as a glaze on sliding contact areas.

Our Tribomet abrasive coatings allow for turbocharger nozzle designs that reduce the gap between the stator and rotor to improve fuel efficiencies. Should contact between a stator and rotor occur, the interaction between the abrasive and abradable counterforce coatings can cut a machined gas path seal. And that’s not all. Our proprietary coatings resist friction heating that can induce thermal cracking on the rotor and are an excellent alternative to hard chrome or other galvanic coatings. 

Tribomet™ Abrasive Coatings (183 KB)

Automated Friction Control Coating for High-Volume Production

Our automated thermal spray system is designed to quickly process automotive, truck and farming equipment parts in high volumes—from 100,000 to more than 3 million parts. We apply uniform carbide, ceramic and metallic coatings in a wide range of thicknesses and spray rates to parts with complex geometries.

Molybdenum wire spray coatings are ideal for friction control on automotive components such as synchronizer rings and shifting forks. HVOF and plasma thermal spray coatings and high-performance slurry coatings can reduce abrasion, arcing, corrosion, oxidation and wear. They can also be applied in an automated mass-production environment on pins and engine and transmission parts such as pinions, belt pulleys and valves, and anywhere chrome replacement is desired or required. 

Ceramic-Coated Bearings for Current Insulation in Electric Motors

Rolling bearings used in rail vehicles, drivetrains and generators can be subjected to electrical currents that can damage raceways and rolling elements—causing premature motor or generator failure. Protect those bearings with a plasma-applied ceramic coating to reduce maintenance and repair costs due to damage caused by electrical currents.

Dry Lubrication

Also called nonstick, anti-stick or release coatings, our easy-to-clean fluoropolymer coatings provide dry lubrication to compression or thermoformed molds that are used to create plastic and rubber components like pins, wires and safety belt parts. These coatings are also applied to the grids of automotive painting booths to reduce maintenance costs and enhance overall productivity with improved paint-spraying quality and cleaner tooling. 

Fluoropolymer coatings are a great alternative to nickel plating or metal hardening where dry lubrication is needed. 

Wear Control for Forged Aluminum Wheels

There’s a cross-industry movement toward lighter-weight materials to reduce vehicle weight, improve fuel economy and lower lifetime component costs. However, moving from steel to aluminum brings its own set of challenges as trailer, RV, bus and heavy truck weights, combined with road debris such as ash and grit, can cause wear between the rim and the tire. Eventually, the rim of an aluminum wheel can wear into a razor-sharp edge and damage the tire.

Praxair’s patented wear-control coatings can protect the aluminum, allowing it to maintain its shape and strength. 

Products for the automotive & transportation industry

Additive Manufacturing Powders

We’ve been a leader in gas-atomized metal powders for more than 50 years. At Praxair Surface Technologies, AM powders are not a commodity—they are a specialty. Our AM cobalt, iron, nickel and titanium powders flow easily and deposit evenly. The results are successive layers with consistent density and uniform build rates. Ultimately, this helps products meet the mechanical, performance and final part specifications of the automotive industry as it manufactures 3D printed parts.

Coating Slurries

Where corrosion, oxidation, wear, insulation or release properties are critical issues, our SermeTel™ coating slurry systems provide superior protection. We offer approximately 150 active slurry compositions in the form of inorganic primers, sealers, dry film lubricants, cements, resins and other materials. A new exhaust gas system coating for automobiles, motorbikes and tractors offers high-temperature-stable color (up to 1200°F / 649°C) and maximum corrosion protection, which increases aesthetic value of the coating.

Forks and Rings

Our wire flame spray molybdenum friction control coating protects transmission components such as clutch disks, gearbox shifting forks, pinion carrier pins and synchronizing rings from wear and slip. And, our thermally treated double-cone synchronizing rings are molybdenum-coated and assembled to prevent complete kit tolerance issues.

Thermal Spray Coating Equipment

Application by application, we offer the appropriate thermal spray equipment—arc spray, gaseous-fueled high-velocity oxy fuel (HVOF) and liquid-fueled high-pressure HVOF (HP/HVOF®), plasma spray, powder feeders and integrated/automated system solutions—and the right materials and parts to do the job optimally and cost effectively.

Thermal Spray Powders

With our hundreds of standard products and industry-leading ability to formulate custom compositions, you're sure to get the right solution for your coating needs with our thermal spray powders. Our lot-to-lot consistency means you'll have a dependable spray process, less need for over-testing of coating quality, less waste and reduced costs.

Wires

We manufacture the highest-quality wires for thermal spray. We offer a wide variety of wire chemistries, ranging from traditional metals and metal alloys to complex cored wire compositions for demanding wear applications.