According to the comprehensive evaluation results of typical sand casting processes, for the static pressure casting process and V method casting process, the smelting process has the greatest impact on resources and environmental loads of the four processes, followed by the molding process, followed by the cleaning process and...
Sand casting has different types such as wet sand casting process and non clay sand casting process. The static pressure casting process of wet sand casting and V method casting process of non clay sand casting are selected for case calculation, and the calculation method is life cycle assessment...
In order to evaluate the resources and environmental load of typical sand casting process more intuitively and effectively, a comprehensive evaluation index is proposed based on the evaluation results of resources and environmental load. The calculation process of comprehensive evaluation index is as follows: (1) Select the evaluation object,...
Based on the above sand casting process analysis, there are many kinds of materials involved in the sand casting production process. The energy consumption is mainly the power consumption during the equipment working process, and the emission is mainly dust and other waste gases. In order to comprehensively evaluate...
Sand casting is a kind of molding method that molten metal into flowing liquid alloy, then burned into the sand mold cavity with certain shape characteristics and size requirements, and then cooled and solidified to obtain the required parts. Sand casting can meet the requirements of various shapes, sizes...
It is found that only a small amount of shrinkage porosity occurs at the inner runner when observing the inside of the sand casting by using the X-ray perspective internal view (Figure 1). According to the observation of the solidification time of the 2D section of the casting (Figure...
First of all, it is necessary to conduct solid modeling and mesh division, and then set parameters. This is the same as the first scheme, but it only adds the setting of chill iron. Therefore, the pretreatment process of sand casting simulation is the same as the original process...
Shrinkage cavity and shrinkage porosity are common defects in sand casting production. The main purpose of numerical simulation of sand casting solidification process is to predict the formation of shrinkage cavity and shrinkage porosity in sand casting solidification process, so as to realize the control of internal quality of...
1. Sand casting structure and technical requirements The sand mold casting of the end cover is shown in Figure 1. The maximum size of the part is 2 152 mm outside diameter, 583 mm high, and 1 600 kg net weight The product belongs to thin wall sand casting,...
In the actual production process, it is found that the processed casting sand mold has the following two main defects: (1) Pit defects on the surface of casting sand mold As shown in Figure 1, irregular pits appear on the surface of the cast sand mold after processing. Through...