Water Hardness

Calcium () and Magnesium () are the two most common ions that are found in hard water, while iron (Fe2+), Manganese (Mn2) and Aluminium (Al3+) can also contribute to hardness.

Hardness is defined as the sum of the calcium (Ca2+) and magnesium (Mg2+) concentrations, both expressed as calcium carbonate in milligrams per litre (mg/l).   Iron (Fe2+), manganese (Mn2+) and Aluminium (Al3+) can also contribute to water hardness.

The water hardness has a significant effect on the performance of compounds. Soft water will cause foam; hard water will increase the compound usage and can cause spots on component parts during drying.

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Diecastings – Surface Finishing Options

Diecasting 3

There are a number of ways diecast manufacturers can choose to go when looking to deburr and finish large numbers of components.

Here we look at the options of vibratory vs blast processing and bring to your attention a few facts and choices you should consider.


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