Mold is the main tool of die casting. Therefore, when designing the mold, it should pay attention to make the overall structure of the mold and the structure of the mold part reasonable, easy to manufacture, easy to use, safe and reliable. In order to prevent the mold from being deformed in the die casting, the molten metal flows stably in the mold, and the casting can be uniformly cooled, and can be fully autoclaved without Deficere {{II}} Praeterea, necesse est eligere idoneam rationem materiae secundum productio batch et materiam {{III}}
{1. structuram fingunt et fingunt partes sit rationabile
From the viewpoint of strength, the mold parts are designed to be good as a whole, strong and durable, and are not easily damaged during use and are not easily deformed. However, if the shape of the die-casting part is complicated and the mold parts are complicated, the mold processing is difficult and the processing precision is not high. If the mold parts are combined, the processing is greatly simplified, and high processing precision is easily obtained, ita obtinendae summus qualis morietur, {{V}}
, 2. DCC determinatio ad numerum Cavitates
To determine the number of cavities, it is necessary to consider the equipment capacity, the difficulty of mold processing, the size of the production batch, and the accuracy requirements of the castings. Especially for multi-cavity molds, due to the difficulty in processing the mold, the dimensional accuracy error is large, the flow path configuration is not easy to achieve balance, and the performance of each cavity casting is inconsistent. When the die casting requires Precisioni et altum geometria, ut sit potior habere cavum {{III}} parva castings sunt subiecti dispiility {{IV}}
, {3. consilio gating ratio
The pouring system is not only a channel for liquid metal filling and die casting, but also regulates the flow velocity and pressure of the melt, as well as the exhaust conditions and the heat stability of the die casting. Therefore, the design of the casting system must analyze the structural characteristics of the casting. Technical requirements, alloy types and characteristics, but also consider the type and characteristics of the die casting machine, in order to design A rationabile mittentem ratio {{II}}
, 4. exhauriunt ratio consilio
The mold should be provided with overflow tanks and exhaust passages with a sufficient overflow range, which is important for ensuring product quality. It is often overlooked that the overflow channel is blocked prematurely by incoming metal liquid. A reasonable structure is required to allow the molten metal to flow into the deeper part of the overflow tank to ensure that the venting hole is always open for the longest time. In addition, the overflow trough should be provided with A summo virga ad removendum metallum ex inundatione canalibus {{III}}
