Structural Bonding
12Pages

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Catalog excerpts

Structural Bonding - 1

Requirements, Adhesives and Applications Bonded cogwheels on a gear shaft Structural Bonding

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Structural Bonding - 2

Bonding of carbide elements to produce saw blades: High resistance to elevated temperatures and media up new design possibilities Adhesives have become an essential assembly element in industrial production, and perform a multitude of functions. Comparable performance can be achieved with no other joining technique. Numerous tests have proven the superiority of adhesives over screws, rivets and welds. In addition, a great deal of weight and therefore energy can be saved by using adhesives. Therefore, bonding technology is now used in fields where adhesives would have been unimaginable only a...

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Structural Bonding - 3

Selection Charts “DELO-ML” “DELO-DUOPOX, DELO-PUR” “DELO MONOPOX, DELO DUALBOND” DELO’s adhesives for structural bonding... ... are ideal for many applications and requirements: Methacrylate  Especially for very large or temperature-sensitive components  Easy, “one-component” processing in the DELO-AUTOMIX system  High media resistance  Good mechanical properties  For bonding components with high strength requirements For metal bonding and metal/mixed joins Some products are light- or UV-curing Easy, one-component processing Fast initial strength within a few minutes (anaerobic curing)...

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Adhesive-friendly design of bonded connections In order to be able to fully exploit the advantages of adhesives, the design of the join must match bonding technology. Proper design of the components for bonding can  Prevent costs,  Speed production processes, and  Expand the range of suitable adhesives. Adhesive-friendly design means:       Provision of sufficiently large bonding surfaces Even distribution of tensions Only compression, tensile and shear stress if possible Avoiding peel and bending stress Avoiding eccentric force transmission Avoiding plastic component deformation

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The coated DELO-SACO PLUS corundum grain hits the component surface. DELO-SACO blasting technique The impact cleans the surface and increases the roughness depth. As a result of the impact, parts of the coated grain are inserted into the surface (tribochemical effect). The grain rebounds, the coating remains. Surface pretreatment It is not only essential to choose the right adhesive. The finish of the component surface is also of great importance for the achievable bond strength, and even more so for the durability of the bond. In general, the surfaces to be bonded are to be dry, as well as...

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Bonded storage and retrieval machine in high-bay warehouse Light-weight construction Light-weight hybrid construction is highly valued in mechanical engineering applications, such as the storage and retrieval machine shown. This increases acceleration, boosts stock rotation and saves energy. The framework made of aluminum or steel (corner connectors) and fiber composite material (channel bars) are bonded. Advantages over other joining methods: ■ Natural low weight of adhesives ■ Laminar force transmission enables thinner structures High requirements Outstanding strength and reliability of...

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Structural Bonding - 7

Unmounted pressure gauges from FT Manovia extinguisher pressure gauges New materials require new joining methods Many fire extinguishers are equipped with pressure gauges, allowing users to check at any time whether the pressure in the container is still in the “green zone”. A crucial factor here is to connect the spiral element to the brass housing. Since recent fire extinguishing agents aggressively attack the spiral elements that used to be made of copper and bronze, stainless steel is now being used. However, this made soft soldering an unsuitable method for joining spiral element and...

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Lighter and more comfortable wheelchairs Multi-material design Lightweight wheelchairs provide for independence, mobility, and flexibility in everyday life. With a weight of just 21 kg, the active wheelchair LEVO Summit EL is the lightest wheelchair with electric stand-up function available on the market, and particularly impresses with its excellent stability for a secure upright position. This low weight can also be attributed to bonding: No other technique is so well suited for joining different lightweight materials. In the case of the LEVO wheelchair, not only the carbon and aluminum...

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ISS International Space Station with ROKVISS (© NASA) Rotor: DELO MONOPOX bonds the magnets to the stator Epoxy resin keeps motors together DELO adhesives are used in space - in the aerospace project ROKVISS (Robotic Components Verification on ISS). ROKVISS consists of a robotic manipulator with two hinges, a camera that follows the movements of the robotic manipulator and another camera that observes Earth. So that the robotic manipulator can move flexibly, it is equipped with two hinges driven by motors. DELO developed the epoxy adhesive that holds these motors together. Not only are the...

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Structural Bonding - 10

DELO’s adhesives in action Securing screws in differential gears DELO-ML 5327  High-strength connection  Excellent media resistance  Normal temperature range from – 60 °C to +200 °C  Accelerated curing in combination with DELO-QUICK enables short cycle times  For high force transfer DELO-ML DB135  Very high impact resistance  Excellent media resistance (for example, to oil, gasoline, diesel)  Normal temperature range up to +180 °C  Tension-equalizing: High-strength bonding of metals with dissimilar coefficients of expansion  Prompt functional strength with the help of light...

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Structural Bonding - 11

Attaching banister elements DELO-DUOPOX AD895  Fills gaps, suitable for small and large bonding gaps  Good media resistance and aging resistance  For interior and exterior use  Efficiency: Flexible modular system in banister construction. The additional process steps required for welding, such as grinding or polishing, are avoided. DELO-PUR 9691  Good tough-elastic properties  Good media resistance  Excellent equalization of tensions  Fast initial strength  Successfully tested by the criteria of UL 94 HB Installing fixtures in ships DELO-PUR 9694  Run-resistant  Highly suitable...

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