carbon–graphite bushings support aircraft engine fuel-pump shafts

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NEWS 5 sheet materials to customers in the biopharmaceuticals sector in the UK and Ireland. These gasketing products meet requirements for food contact set by the US FDA and USP Class VI <88> biocompatibility, with complete documentation for lot traceability – which is crucial for successful supply chain management in highly regulated processes and critical applications. Gore Sta-Pure Pipe Gasket Style 1500 offers the unique combination of low stress-to-seal with long-term sealing reliability. These are ideal for standardising gasket materials across steel, glass-lined steel and fibreglass-reinforced plastic (FRP) systems. The highly conformable Gore Sta-Pure Sheet Gasketing Style 1200 provides exceptional resistance to creep and cold flow for reliable long-term sealing, says James Walker. This material conforms to rough, irregular flanges and creates a tight, long-lasting seal. Because it is chemically inert and dimensionally stable at high temperatures and pressures, it maintains a seal in the most demanding process and system environments. James Walker says that the products from Gore offer an excellent complement to its Elast-O-Pure range of elastomeric gasket and seal materials. Contact:| James Walker & Co Ltd, Gawsworth House, Westmere Drive, Crewe, Cheshire CW1 6XB, UK. Tel: +44 1270 536 000, Fax: +44 1270 536 100, Email: [email protected], Web: www.jameswalker.biz W.L. Gore & Associates Inc, 555 Paper Mill Road, Newark, DE 19711, USA. Tel: +1 410 506 7787, Web: www.gore.com Carbon–graphite bushings support aircraft engine fuel-pump shafts U S-based Metallized Carbon Corp has developed carbon–graphite bushings for use in gear pumps that supply aviation fuel in aircraft engines. The Metcar carbon–graphite bushings are used to support both the drive-gear and idler- gear shafts. The company says they are pre- ferred for this application because they can use aviation fuel as the bushing lubricant. Aviation fuel is a low-viscosity liquid that produces only an extremely thin hydrodynamic film – too thin to provide adequate lubrication for tradi- tional metallic bushings. But because Metcar’s material has no atomic attraction to a metallic shaft, the thin fuel-film is sufficient to lubricate shafts running in the carbon–graphite bushings. According to Metallized Carbon, a second major advantage of carbon–graphite bushings is that they are self-lubricating – they can run dry for short periods of time without catastrophic pump failure or significant wear. In addition, these bushings are dimensionally stable, which permits the close bushing-to-shaft running clear- ances that are required in gear-pump applications. Finally, they have a relatively low elastic modulus. Whilst sufficiently elastic to enable them to be press-fitted into the metallic gear- pump housing with no difficulty, after being properly press-fit, they are pre-stressed in compression. Therefore, they exhibit nearly the same coefficient of thermal expansion as the metallic gear-pump housing material. This assures that the running clearance between the shafts and the bushings will remain the same throughout the entire operating temperature range of the pump. Contact: Metallized Carbon Corp, 19 South Water Street, Ossining, NY 10562, USA. Tel: +1 914 941 3738, Fax: +1 914 941 4050, Email: [email protected], Web: www.metcar.com Company News Trelleborg acquires 51% stake in pipe-seal company T relleborg Ab has acquired a 51% stake in the North American group Max Seal Inc, which develops and manu- factures polymer-based sealing systems for various types of pipes deployed in water and wastewater systems. Trelleborg Industrial Solutions signed an agree- ment during February to acquire the business which has its main facility in Tijuana, Mexico and a sales company in the USA. Its net sales in 2013 amounted to around SEK80 million. Mikael Fryklund, President, Trelleborg Industrial Solutions, commented: ‘This jointly owned company provides us with a broader cus- tomer-base, an extensive and competitive prod- uct mix, and improved geographic presence.’ ‘Trelleborg commands a strong position in pipe-seal systems in the European market, and we can now offer our customers enhanced glob- al support, which will create new potential for April 2014 Sealing Technology IN BRIEF Patrick Lindner appointed President, Performance Polymers, DuPont DuPont has named Patrick Lindner as presi- dent of its Performance Polymers business. He succeeds Diane Gulyas who has retired. ‘Diane has provided outstanding leadership, ingenu- ity and endless energy on behalf of DuPont for 36 years. Her contributions have been impactful on many fronts including business leadership, mentoring and functional excel- lence,’ commented James Collins Jr, Senior Vice President, DuPont. ‘Pat’s customer-facing experience coupled with his strong science background has prepared him well to lead the Performance Polymers business into the future. He will help drive the advancement of our renewably sourced polymers further into the market place, addressing customers’ emerg- ing needs for sustainable innovations.’ STLE turns 70 The Society of Tribologists and Lubrication Engineers (STLE) is celebrating its 70th anni- versary this year. The society was founded on 3 March 1944 in Chicago, USA, as the American Society of Lubrication Engineers (ASLE), but changed its name to STLE in 1987 to adapt and reflect evolving market and audience needs. Today it serves the needs of more than 10 000 individuals and 150 compa- nies and organisations that comprise the tribol- ogy and lubrication engineering business sector. More information: Web: www.stle.org Bruce McDonald appointed to Dana Holding’s board of directors R. Bruce McDonald has been appointed to the board of directors of Dana Holding Corp, a driveline, sealing and thermal-management technologies company based in Maumee, Ohio, USA. McDonald, Executive Vice President and Chief Financial Officer, Johnson Controls Inc, will serve on the audit and com- pensation committees of the board. ‘We are pleased to have someone of Bruce McDonald’s abilities and experience join the Dana board. He is an exceptional business leader with strong financial acumen, international experi- ence and knowledge of Dana’s markets,’ said Joseph Muscari, Chairman, Dana Holding. Intertek expands its testing services Intertek Group Plc, a multinational inspection, product testing and certification company, has expanded its film and flexible polymer testing capabilities at its site in Pittsfield, Massachusetts, USA. The firm says the newly added capabilities will help manufacturers to determine barrier properties of their materials and meet applicable requirements, such as ASTM 3985 for oxygen barrier resistance and ASTM F1249 for water vapour transmission rate.

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Page 1: Carbon–graphite bushings support aircraft engine fuel-pump shafts

NEWS

5

sheet materials to customers in the biopharmaceuticals sector in the UK and Ireland.

These gasketing products meet requirements for food contact set by the US FDA and USP Class VI <88> biocompatibility, with complete documentation for lot traceability – which is crucial for successful supply chain management in highly regulated processes and critical applications.

Gore Sta-Pure Pipe Gasket Style 1500 offers the unique combination of low stress-to-seal with long-term sealing reliability. These are ideal for standardising gasket materials across steel, glass-lined steel and fibreglass-reinforced plastic (FRP) systems.

The highly conformable Gore Sta-Pure Sheet Gasketing Style 1200 provides exceptional resistance to creep and cold flow for reliable long-term sealing, says James Walker. This material conforms to rough, irregular flanges and creates a tight, long-lasting seal. Because it is chemically inert and dimensionally stable at high temperatures and pressures, it maintains a seal in the most demanding process and system environments.

James Walker says that the products from Gore offer an excellent complement to its Elast-O-Pure range of elastomeric gasket and seal materials.

Contact:|

James Walker & Co Ltd, Gawsworth House,

Westmere Drive, Crewe, Cheshire CW1 6XB, UK.

Tel: +44 1270 536 000, Fax: +44 1270 536 100,

Email: [email protected],

Web: www.jameswalker.biz

W.L. Gore & Associates Inc, 555 Paper Mill Road,

Newark, DE 19711, USA. Tel: +1 410 506 7787,

Web: www.gore.com

Carbon–graphite bushings support aircraft engine fuel-pump shafts

US-based Metallized Carbon Corp has developed carbon–graphite

bushings for use in gear pumps that supply aviation fuel in aircraft engines.

The Metcar carbon–graphite bushings are used to support both the drive-gear and idler-gear shafts. The company says they are pre-ferred for this application because they can use aviation fuel as the bushing lubricant. Aviation fuel is a low-viscosity liquid that produces only an extremely thin hydrodynamic film – too thin to provide adequate lubrication for tradi-

tional metallic bushings. But because Metcar’s material has no atomic attraction to a metallic shaft, the thin fuel-film is sufficient to lubricate shafts running in the carbon–graphite bushings.

According to Metallized Carbon, a second major advantage of carbon–graphite bushings is that they are self-lubricating – they can run dry for short periods of time without catastrophic pump failure or significant wear. In addition, these bushings are dimensionally stable, which permits the close bushing-to-shaft running clear-ances that are required in gear-pump applications.

Finally, they have a relatively low elastic modulus. Whilst sufficiently elastic to enable them to be press-fitted into the metallic gear-pump housing with no difficulty, after being properly press-fit, they are pre-stressed in compression. Therefore, they exhibit nearly the same coefficient of thermal expansion as the metallic gear-pump housing material. This assures that the running clearance between the shafts and the bushings will remain the same throughout the entire operating temperature range of the pump.

Contact:

Metallized Carbon Corp, 19 South Water Street,

Ossining, NY 10562, USA. Tel: +1 914 941 3738,

Fax: +1 914 941 4050, Email: [email protected],

Web: www.metcar.com

Company News

Trelleborg acquires 51% stake in pipe-seal company

Trelleborg Ab has acquired a 51% stake in the North American group

Max Seal Inc, which develops and manu-factures polymer-based sealing systems for various types of pipes deployed in water and wastewater systems.

Trelleborg Industrial Solutions signed an agree-ment during February to acquire the business which has its main facility in Tijuana, Mexico and a sales company in the USA. Its net sales in 2013 amounted to around SEK80 million.

Mikael Fryklund, President, Trelleborg Industrial Solutions, commented: ‘This jointly owned company provides us with a broader cus-tomer-base, an extensive and competitive prod-uct mix, and improved geographic presence.’

‘Trelleborg commands a strong position in pipe-seal systems in the European market, and we can now offer our customers enhanced glob-al support, which will create new potential for

April 2014 Sealing Technology

I N B R I E F

Patrick Lindner appointed President, Performance Polymers, DuPontDuPont has named Patrick Lindner as presi-

dent of its Performance Polymers business. He succeeds Diane Gulyas who has retired. ‘Diane has provided outstanding leadership, ingenu-ity and endless energy on behalf of DuPont for 36 years. Her contributions have been impactful on many fronts including business leadership, mentoring and functional excel-lence,’ commented James Collins Jr, Senior Vice President, DuPont. ‘Pat’s customer-facing experience coupled with his strong science background has prepared him well to lead the Performance Polymers business into the future. He will help drive the advancement of our renewably sourced polymers further into the market place, addressing customers’ emerg-ing needs for sustainable innovations.’

STLE turns 70The Society of Tribologists and Lubrication Engineers (STLE) is celebrating its 70th anni-versary this year. The society was founded on 3 March 1944 in Chicago, USA, as the American Society of Lubrication Engineers (ASLE), but changed its name to STLE in 1987 to adapt and reflect evolving market and audience needs. Today it serves the needs of more than 10 000 individuals and 150 compa-nies and organisations that comprise the tribol-ogy and lubrication engineering business sector.

More information: Web: www.stle.org

Bruce McDonald appointed to Dana Holding’s board of directorsR. Bruce McDonald has been appointed to the board of directors of Dana Holding Corp, a driveline, sealing and thermal-management technologies company based in Maumee, Ohio, USA. McDonald, Executive Vice President and Chief Financial Officer, Johnson Controls Inc, will serve on the audit and com-pensation committees of the board. ‘We are pleased to have someone of Bruce McDonald’s abilities and experience join the Dana board. He is an exceptional business leader with strong financial acumen, international experi-ence and knowledge of Dana’s markets,’ said Joseph Muscari, Chairman, Dana Holding.

Intertek expands its testing servicesIntertek Group Plc, a multinational inspection, product testing and certification company, has expanded its film and flexible polymer testing capabilities at its site in Pittsfield, Massachusetts, USA. The firm says the newly added capabilities will help manufacturers to determine barrier properties of their materials and meet applicable requirements, such as ASTM 3985 for oxygen barrier resistance and ASTM F1249 for water vapour transmission rate.