Trelleborg introduces Rubore composite technology (Oct 2012)
Trelleborg Sealing Solutions introduces the unique Rubore composite technology to its product portfolio. Focusing on automotive applications, the manufacturing process allows the development of components that offer significant weight-savings and unrivalled total cost reduction only achievable through this method of production.
Rubore technology is an advanced production process used to create a three to five layer rubber-to-metal sandwich by applying a bonding agent to metal carriers and then vulcanising rubber to the coated metal. Already world-leading in anti-vibration applications for the automotive industry, a range of Rubore seals have been developed that includes five products for a variety of applications.
Axel Weimann, head of sales engineering for the European automotive hub for Trelleborg Sealing Solutions, said: “The real benefits of our patented Rubore composite technology are apparent when you consider the total cost of production. Working with us, components can be designed or redesigned to integrate Rubore products. This can lead to significant total cost savings when you consider reduction of handling, the ability to automate assembly and less logistics.”
Lower vehicle weight
Weimann added: “Another big saving is given in many applications where due to compensation of roughness, the need for surface finishing can be alleviated. In addition, minimising component weight not only reduces material costs, but also contributes to the automotive designers’ objective to lower vehicle weight.”
One example of how the Rubore composite technology has worked in practice is the seal design of an electronic control unit (ECU). The room available within an engine compartment or vehicle interior is limited, meaning that complex designs which fit space requirements are essential.
In a harsh environment, like the engine compartment, the ECU cover is constructed from metal and sealing is usually with a moulded gasket, manually inserted in to the groove or achieved by gluing with liquid silicone or elastomer. The preferred solution was a Rubore cover seal, where the rubber seal is combined with the ECU cover in a single integrated unit, meaning costly manual installation is no longer needed.
Optimised production processes
Rubore seals can optimise production processes by improving accuracy and lowering costs as well as reducing lead, handling and assembly times. More complex components can be designed that are lighter weight with improved product function.
Rubore flat seal – flat gaskets prevent micro leakage Rubore frame seal – stiff flexible seal allows for tolerance variation Rubore slide ring – metal-reinforced guide rings preventing groove vibration Rubore cap seal – circular cover seals negating the need for glue or adhesive Rubore cover seal – integrated housing seals for small spaces, to lower weight and improve quality
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