(1)Guangdong Stainless Steel CastingIn order to avoid the white mouth caused by stainless steel casting, in addition to the effective processing technology, the wall thickness must not be too thin (some materials emphasize that when the wall thickness is about 15mm, the corners of the castings with metal molds must be selected Arc, the casting arc for aluminum alloy profiles and die-cast aluminum metal mold castings should not be less than 3-4m, and the casting arc for pig iron, steel castings, and alloy copper metal mold castings can be selected by referring to Table 1.1-32;
(2) Because of the inconsistency of the metal mold and the core, in order to facilitate the removal of the casting and the extraction of the mold, the casting slope of the stainless steel casting should be moderately larger than that of the sand mold casting, generally 30%-50% larger. It should be emphasized that in addition to the aluminum alloy type and the aspect ratio of the wall, the casting slope size is also related to the surface of the casting. The surface of the casting that has a tendency to get rid of the metal mold surface when the casting is refrigerated can be designed to be smaller. The surface of the casting that tends to be clamped on the metal mold when the casting is closed should be given a great slope. The casting slope of stainless steel casting of various aluminum alloys;
(3) Because the metal heat pipe dissipates heat quickly, the minimum thickness of stainless steel casting should be larger than that of sand casting castings, and the minimum wall thickness of castings of various cast aluminum alloys and different sizes;
(4) The thickness of the inner cavity and inner rib of Guangdong stainless steel castings should generally be 0.6-0.7 of the thickness of the contact surface. Otherwise, because the inner cavity (rib) cools slowly, it is most likely to cause cracks at the junction of the inner and outer walls when the casting is folded. .