Production method using a vacuum sand casting mould

A method for producing cast parts from metal using a sand casting mould (1), comprising:

• producing the sand casting mould (1) in a moulding box (2) by a negative-pressure moulding method
• filling the produced sand casting mould (1) in the moulding box (2) with molten metal
• cooling the sand casting mould (1) and the cast part (3) solidifying therein with a cooling fluid (4),
• wherein the sand casting mould (1), which is under negative pressure, in the moulding box (2) is first filled with molten metal (5),
• the moulding box (2) with the sand casting mould (1), which is under negative pressure therein, is then completely or partially impinged upon by a cooling fluid (4);
• and
• the moulding box (2) after, at the same time as, or before the cooling fluid impingement is opened at places with cooling fluid impingement so that the cooling fluid (4) is sucked into the sand casting mould (1) which is under negative pressure and as a result quenches the solidifying cast part (3).