Application trend of dewaxing casting

In our country, dewaxing casting has just begun to be used in industrial production in the 1950s and 1960s. Since then, such excellent casting processes have gained great development trends, and have been successively used in the production of airlines, cars, CNC lathes, ships, gas turbines, gas turbines, communication equipment, equipment, weapons, medical machinery and their knives, etc. It is widely used, and it is also used in the so-called dewaxing casting process of arts and crafts. In short, it uses fusible raw materials.(Such as wax or plastic)Make fusibility model(Commonly known as investment or model), Apply several layers of refined fireproof architectural paint on it, after drying and hard bottoming to produce an integral shell, then use steam or boiling water to melt the model from the shell, and then place the shell in the sand box. Fill it with dry sand molding around it, and finally put the mold into the roasting furnace for high-temperature roasting(If a high-toughness shell is selected, the shell can be fired directly without modeling.)After the mold or shell is fired, molten metal is poured into it to obtain castings.

Choosing the dewaxing casting method can save large quantities of mechanical equipment and production and processing man-hours, and greatly save metal raw materials. Another advantage of the dewaxing casting method is that it can cast complex castings of various alloys, especially high-temperature alloy castings.Manufacturing with dewaxing casting process can not only ensure mass production, ensure the consistency of castings, but also prevent the stress concentration of residual knife lines after machining.