A, the shape of the die casting structure requirements:1, eliminate internal side concave;2, avoid or reduce the core-pulling parts;3, avoid core cross;The reasonable structure of die casting can not only simplify the structure of the die casting type, reduce manufacturing cost, also improve casting quality.Second, the design of die casting foundry slope requirements:Precision casting Angle effect is to reduce the friction between the casting and the mold cavity, easy to remove the casting;Ensure that the casting surface do not strain;Prolong the service life of die mold, aluminum alloy die casting general minimum casting Angle is as follows: the smallest casting aluminum alloy die casting within the external surface of the slope surface of core hole (unilateral) 1 ° 1 ° 30 '2 °.Nsi - the font-family: Arial;The oledata.mso bidi - the font-family: Arial;Color: RGB (69,69,69);Letter - spacing: 0.0000 pt;The font - weight: normal;The text - transform: none;The font - style: normal;The font - size: 9.0000 pt;The oledata.mso - the font - kerning: 0.0000 pt;"> pay attention to the rounded corners, shape, structure, precision casting design details such as wall thickness and reinforcement of requirements, to design and produce a better quality of precision castings.