Characteristics of inner hall of copper furnace by lost wax method

The inner hall of copper furnace with lost wax method is characterized by smooth inner wall, no casting trace and no polishing trace. In addition, attention should be paid to the color, white and gray of the inner hall bag when appreciating. Black hair, patina and sense of time are all true. It can also be seen from the furnace hall that the wax loss method is true and the sand turning method is false.

Lost wax method or lost wax casting method is a production process in ancient China. In modern times, it is still a way to present the most exquisite details of metal products. Due to the complicated design, this product is usually difficult to manufacture. The lost wax method can make any metal completely and faithfully reproduce the appearance of its wax model. Therefore, this method is still widely used in sculpture, jewelry processing, dentistry and industrial restoration.

process flow

Make wax into the shape of the mold to be made, then spray high-temperature resistant fine mud on the surface of the wax mold, sprinkle fine sand on the surface of the mud for many times to form a complete mold shell, and melt out the wax after drying and heating to form a mold cavity for casting copper liquid, that is, copper plus metal elements such as lead, zinc and tin. After casting is completed, a beautiful antique bronze ware is displayed in front of you after shelling, polishing and aging.

The principle of lost wax casting technology in ancient China originated from combustion method. Lost wax casting was originally a precision casting method applied to bronze objects. Wax loss method uses beeswax as casting model. Because beeswax is soft, it can be finely carved and hot-processed, and craftsmen can finely process beeswax molds to make complex casting molds.