In this paper, corrosion properties of 3 heat treatment-free die casting aluminum alloys to 2 typical integrated die casting die steels are studied through dynamic rotary immersion test in molten aluminum alloy. The results show that after 20 min rotary immersion test, die steel samples in 1# molten aluminum alloy has the smallest corrosion area and mass loss. As a result, 1# aluminum alloy has the smallest die soldering tendency. Therefore, in the application of new heat treatment-free material, it is important to choose a die material which fits well with this heat treatment-free die casting aluminum alloy to obtain the smallest corrosion mass loss, and ensure the service life of die.

Heat treatment-free aluminum alloy  /  Integrated die casting  /  Die Steel  /  Die Soldering