Research Of Active Disassembly Devices' Design Theory And Methods Based On Smart Materials

With the advantage of technology, the updating of products expedite year by year, that causes the recycle of waste products more and more in attention. A main factor that restricts the recycle of products is the low efficiency and high costs in disassembling the waste products. One of solutions is active disassembly using smart materials (ADSM). The core of ADSM is active disassembly devices posted in products, what are mainly made of shape memory alloy (SMA) or shape memory polymer (SMP). Active disassembly device is mechanic devices that can make the connection of components inoperative by changing shape or other ways in some certain environments, and then the products will self-detached. There are two kinds of active disassembly devices. One kind affords power that detaches components, what are made of SMA and have no connect function. Another kind of active disassembly device themselves are connector; they disassemble products by changing shape or lose their connection intensity. ADSM can greatly enhance disassembly efficiency of products, and then recycle waste products will be much easier.The item makes a experiment research in the capabilities of varies of smart materials (mainly sharp memory materials) and the range of these smart materials can be used in ADSM (active disassembly using smart materials).Then we get a grip of the design methods and manufacture technics of active disassembly structure using sharp memory materials. We will analyse the reasons and correlative factors that influence products' dependability which use active disassembly structure, then build a dependability analysis model. We will build a disassembly process model of products using active disassembly structure to simulate and analyse the active disassembly structure's fluence to disassembly of products and the effective of disassembling products in batchs. At last we will get the design theory and methods system of products based on the technique of ADSM, which can establish a academic and methodological elements for high-effective recycle of electronic products.