Explanation on preventing and solving hot sand problems when manufacturing cast iron plates

When manufacturing cast iron flat blanks, if the sand is overheated, it will cause sand sticking, affecting the quality of the casting and subsequent processing. Therefore, attention should be paid to preventing and solving some problems in the use of hot sand during casting.

Explanation on preventing and solving hot sand problems when manufacturing cast iron plates

When manufacturing cast iron flat blanks, if the sand is overheated, it will cause sand sticking, affecting the quality of the casting and subsequent processing. Therefore, attention should be paid to preventing and solving some problems in the use of hot sand during casting.

To prevent and solve the problem of hot sand, the following measures can be taken (referring to the solution to the problem)

For factories with better economic conditions, an important measure is to consider increasing the actual capacity of the sand treatment system during the design phase, reducing the number of cycles of sand use, and ensuring that the old sand is circulated only twice per shift. Cast iron flat plate: mainly used as a benchmark for inspecting workpiece errors, the inspection plate/inspection platform plays a crucial role in the mechanical manufacturing process. It is the basic benchmark tool for inspecting each workpiece before leaving the factory. Cast iron flat plates are widely used in industries such as mechanical manufacturing, chemical engineering, hardware, aerospace, petroleum, automotive manufacturing, and instrument manufacturing.

2. Adopt humidification, ventilation, and cooling treatment. Cast iron flat plate; It has multiple applications, including mechanical manufacturing, chemical industry, hardware, aerospace, petroleum, automobile manufacturing, instrument manufacturing, and other industries. Several factories in our country have applied well structured Jinkou humidification equipment, which can reduce the temperature of the molding sand to the required range. Some domestic factories only install a simple physical and chemical water spray device on the inclined belt after sand falling, which automatically adjusts the water spray amount according to the amount of sand coming in and can also lower the sand temperature appropriately.

3. In order to prevent hot sand from adhering to the mold, in addition to spraying release agents made of kerosene or lightweight materials on the template, a template heating device can also be used to reduce the temperature difference between the small sand and the mold, avoid water vapor condensation on the template, and thus reduce sand mold damage during mold removal. However, the heating temperature of the template should not be higher than the temperature of the sand mold to avoid dehydration and brittleness of the mold cavity surface, which may cause sand hole defects.