Search for dissertations about: "direct chill"
Found 5 swedish dissertations containing the words direct chill.
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1. Understanding surface defects on direct chill cast 6xxx aluminium billets
Abstract : .... READ MORE
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2. The Effect of Processing Parameters and Alloy Composition on the Microstructure Formation and Quality of DC Cast Aluminium Alloys
Abstract : The objective of this research is to increase the understanding of the solidification behaviour of some industrially important wrought aluminium alloys. The investigation methods range from direct investigations of as-cast ingots to laboratory-scale techniques in which ingot casting is simulated. READ MORE
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3. Microstructure Formation During Solidification and Solid State Transformation in Compacted Graphite Iron
Abstract : Compacted graphite iron (CGI) is rapidly becoming an attractive alternative material for engine components in the automotive industry, replacing lamellar graphite iron (LGI) in applications where high mechanical strength is desired. However, the gain in mechanical strength comes with a cost; thermal conductivity, process control and machining are three areas that are more challenging for CGI. READ MORE
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4. Investigation of Surface Formation in As-Cast and Homogenized 6xxx Aluminium Billets
Abstract : The direct chill (DC) casting technique to produce billets for extrusion and ingots for rollingwas developed in the 1930s. The principle, which is still valid, is a two-stage cooling with a primary cooling at a mould surface followed by water spraying directly on the surface. READ MORE
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5. Moving thresholds : body narratives within the vicinity of gym and fitness culture
Abstract : This thesis investigates thresholds that impede bodies from moving to, and within, gym and fitness sites. Thresholds are here understood as gendered social constructs and norms, which direct bodies in certain ways, and thus circumscribing potential movements and capabilities. READ MORE