Substantial improvements in the quality and reliability of aluminium alloy castings can be achieved if the hydrogen content of the melt is controlled. Aluminium alloys absorb hydrogen in the liquid state and unless it is eliminated, porosity will appear in the casting. Therefore accurate measurement of hydrogen in the melt before casting is crucial to ensure that degassing operations attain the specified quality acceptance value. Hyscan hydrogen-in-aluminium analyser provides this measurement on the foundry shop floor. This hydrogen analyser is robust, portable and easy to use and offers the operator with a quantitative measurement of hydrogen in the melt within five minutes of sampling. Besides its use as a quality control tool, the hydrogen analyser can be used for process investigation and for the evaluation of melt treatments. The analyser`s lower scrap rates and reduced energy and labour costs facilitates financial benefits. The hyscan hydrogen analyser is manufactured by severn science [instruments] ltd, uk.
