This assortment of new fasteners and adhesives work with a range of materials they can attach to, including stainless steel, higher-strength aluminum alloys, ceramics, glasses, metals, composites, rubber, and many plastics. They're also designed for use in a wide variety of applications including consumer electronics, aerospace, food and pharmaceutical packaging, medical devices, machine tooling,
aerospace, electronic, and optical, as well as some aimed at highly corrosive environments.
Several of the new adhesives and fastening devices we're featuring in this slideshow are for use in consumer applications, such as wearables or other compact electronic assemblies, whether it's sealing materials and encapsulants for protecting sensitive components, or tiny micro-screws for holding those assemblies together. They range from high-strength mounting adhesives, to hot melt adhesives that incorporate UV inspection markers, to two-part epoxy pastes with bond lines measured in microns. Several have extended service temperature ranges and some of the adhesives cure at room temperature. Fasteners include several self-clinching devices and coiled spring pins for metals, as well as couplings for conveying and automated assembly systems with encoder feedback devices.
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Click on the image below to start the slideshow:
Dow Corning's new EA-4600 hot melt adhesive is a room-temperature vulcanization (RTV) black adhesive for use in the assembly of consumer electronics and other high-volume manufacturing operations. This latest addition to the company’s portfolio of advanced hot melt adhesives is formulated to dispense easily and achieve instant green strength, allowing electronic assemblies to be handled immediately after its application. It incorporates ultraviolet (UV) markers for automated UV inspection of finished parts, and can be easily reworked within 24 hours of application. After full cure, EA-4600 delivers durable protection against chemicals, water, and dust. The strong bonds it forms supports the cost-effective, water-resistant narrow bezels many designers are incorporating into next-generation smart phones, tablets, and wearables. The material's extended service temperatures range from -40C to 150C.
(Source: Dow Corning)
Ann R. Thryft is senior technical editor, materials & assembly, for Design News. She's been writing about manufacturing- and electronics-related technologies for 25 years, covering manufacturing materials & processes, alternative energy, machine vision, and all kinds of communications.
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