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Subject: Casting porosity

Date: 10/01/03 at 8:28 AM
Posted by: Rick Essex
E-mail: REssex@learromec.com
Message Posted:

I am trying to find if there is an industry wide problem with casting porosity that has increased over the last 2 years or so. I have experienced a sharp increase in casting scrap due to internal porosity across many suppliers in different geographical locations. I am wondering if a change in chemicals used to process the green sand may contribute or if there is some other outside influence in this process.
Is anyone else noticing this problem?

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