Why should sculptures be cast in copper? Why are many great people's statues cast in copper instead of other metals, such as iron, aluminum, etc. What are the advantages of cast copper sculptures? In short, copper has good physical properties, is easy to cast, can be maintained for a long time and has low cost.

Specifically, casting sculptures with copper has the following advantages:

from physical characteristics Compared with steel materials, copper has a long life, is one of the permanent materials, and is resistant to weathering, corrosion (of course, it will generate some copper green, but it is much better than steel, and will not rust too seriously), abrasion and other characteristics; Compared with gold, copper has low melting point, good copper water fluidity, easy casting and molding, and much lower price.

from Foundry technology For example, the cast copper sculpture process has a long history, the wax loss casting process is mature, and the sculpture produced is hollow, which can effectively control the weight. Especially when making works that are top heavy and the center deviates from the support point seriously, the top can be made as thin as possible, and the bottom can be made very thick to adjust the center of gravity position, which can be more firm. It can also be gilded, gilded, and painted according to the creative surface of the works, Antique effect makes sculptures more abundant and beautiful;

from Material classification There are many kinds of copper alloys, including brass, red copper, white copper, silicon bronze and tin bronze. They all have different physical properties and are suitable for different sculpture casting:

brass

It has the characteristics of low manufacturing cost, great process flexibility, and can obtain complex shapes and large castings;

Red copper

It has the characteristics of high purity, fine structure, high oxygen content, no pores, trachoma, looseness, excellent electrical conductivity, high surface precision of the electroetched mold, and is suitable for precision casting;

bronze

It has the characteristics of low melting point, high hardness, strong plasticity, wear resistance, corrosion resistance, bright color, etc. It is suitable for casting all kinds of bronze carving utensils, such as food utensils, wine vessels, water vessels, incense burners, etc. It is easy to make complex castings with accurate size requirements and handicrafts with clear patterns.

Cupronickel

The addition of nickel significantly improves the strength and corrosion resistance of copper, and has the characteristics of good ductility, high hardness, and beautiful color. It is mostly used for making ornaments, which can be comparable to the effect of silver ornaments.

In a word, compared with other materials, there are many advantages and disadvantages of casting sculptures with copper.