customcastings
Mechanical
Hello there.
I am trying to find out why aluminum castings suffer a color modification on its surfaces after heat treatment (T6/quenching). We use Foseco's dycotes in our dye casting process, and I wondered if these substances would react with the aluminum oxides on the parts surface, therefore generating different oxides (that will bring a different color to the casting).
The coloration is not homogeneous over the castings surfaces - even some cavities that are unreachable by tools and (dirty) gloves have a different color pattern too.
I appreciate any help/comment on the topic.
eSchein
I am trying to find out why aluminum castings suffer a color modification on its surfaces after heat treatment (T6/quenching). We use Foseco's dycotes in our dye casting process, and I wondered if these substances would react with the aluminum oxides on the parts surface, therefore generating different oxides (that will bring a different color to the casting).
The coloration is not homogeneous over the castings surfaces - even some cavities that are unreachable by tools and (dirty) gloves have a different color pattern too.
I appreciate any help/comment on the topic.
eSchein