http://sop.mse.mtu.edu/index.php?action=history&feed=atom&title=Squeeze_Casting_Mg_with_Preforms 2026-06-02T02:07:20Z Revision history for this page on the wiki MediaWiki 1.37.2 http://sop.mse.mtu.edu/index.php?title=Squeeze_Casting_Mg_with_Preforms&diff=233&oldid=prev 2022-05-24T19:12:40Z

<p>Copied from old</p> <p><b>New page</b></p><div> [[Category: SOP]]<br /> <br /> =Safety=<br /> Squeeze casting is performed by Loukas, but if present during the the process, involves the same risks as in a foundry except the molten metal is being squeezed at high temperatures. When entering the the pouring room at Loukas, safety glasses, steel toed shoes and foundry jackets, &quot;greens&quot; should be worn while in the room. During pouring additional PPE such as full body Kevlar &quot;silvers&quot;, Kevlar gloves, and protective mask should be worn.<br /> <br /> =Procedure=<br /> # A 6&quot; ID pipe was used to create the billets for the MMC-group samples. Which consisted of two &quot;preforms&quot; ~2cm in diameter, 1 cm thick each. <br /> # The billet is placed onto the squeeze casting machine, and the inside is layered with a proprietary coating to help release the billet from the pipe.<br /> # The two samples are placed in the press, the tray holding the samples was removed before metal was removed for the actual run [[File:SqueezeCast.jpg|Squeeze Casting Press with Preforms.|320px|thumb|right]] <br /> # The plunger is pre-heated to 600°F<br /> # The Mg+2wt% Zn Alloy is heated to 1350°F in a furnace next to the squeeze casting machine. <br /> # A cover gas of CO2 and R134yf is used to prevent oxidation of the magnesium while in the molten state.<br /> # The Mg alloy is poured from a ladle immedeitly into the machine and squeeze casting is performed with a pressure of 2000 psi.<br /> # The billet is then allowed to air cool</div>

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