How to determine the parting surface of the reducer box die-casting mold, and what effect does it have on the demolding of the casting?
Publish Time: 2024-08-15
When designing the reducer box die-casting mold, correctly determining the parting surface is a key link, which has an important impact on the demolding process of the casting.
The selection of the parting surface requires comprehensive consideration of multiple factors. The first thing to consider is the structural shape of the casting. Usually, the parting surface is determined at the largest cross-section of the casting or at a relatively regular and simple part, which is conducive to the processing and manufacturing of the mold. For castings with complex internal structures such as reducer housings, it is also necessary to consider how to facilitate the arrangement of the core and cavity to ensure the rationality and compactness of the mold structure. The position of the parting surface will also affect the dimensional accuracy of the casting. If the parting surface is not selected properly, it may cause defects such as flash and burrs at the parting point of the casting, affecting the dimensional accuracy and surface quality.
In terms of demolding, the design of the parting surface is directly related to whether the casting can be smoothly ejected from the mold. A reasonable parting surface can make the casting receive uniform demolding force during the demolding process, avoiding deformation or damage of the casting due to uneven force. For example, if the parting surface is designed to be inclined or curved, some areas may be separated first during demolding, causing uneven tension on the casting, increasing the difficulty and risk of demolding. In addition, the roughness of the parting surface will also affect demolding. A smooth parting surface can reduce the friction between the casting and the mold, which helps to demold smoothly.
In actual design, the type and working parameters of the die-casting machine must also be considered. Different die-casting machines may have certain restrictions and requirements on the position and shape of the parting surface. In order to ensure that the selection of the parting surface is reasonable, simulation analysis is usually performed in the design stage, and the die-casting process and demolding process are simulated by computer software to predict possible problems and optimize the parting surface.
In short, correctly determining the parting surface of the reducer box die-casting mold requires comprehensive consideration of factors such as casting structure, dimensional accuracy, demolding smoothness, and mold manufacturing difficulty. A well-designed parting surface can increase the service life of the mold, ensure the quality of the casting, and make the demolding process more efficient and stable.
