What is a hard enamel pin?

What  is  a  hard  enamel pin ?I believe a lot of people confuse it with soft enamel pin. We will solve your doubts

The origin of enamel

Enamel first appeared in ancient Egypt in 2000 BC. The ancient Egyptians were very fond of fine jewelry, they decorated themselves with different gems and minerals. Due to the instability of gem mining, they invented the glass casting process. This process requires plexiglass materials to be smelted and then added with various trace metal oxides to prepare colorful colors, smear them on the surface of various utensils, and then dry and fire to form various types of bright and dazzling colors. Artifact jewelry.

The vigorous development of enamel technology can be traced back to the 12th century. The Ming Dynasty and Chinese porcelain workers in China improved the enamel technology and applied this technology to ceramic and metal products. The Chinese call it cloisonne craftsmanship.

Price of enamel

The main raw materials of enamel are quartz, feldspar, china clay, etc., with alkali and borax as flux, titanium oxide, antimony and fluoride as opacity, and metal oxide as color. After crushing, mixing and melting, pour it into water to cool it into enamel blocks, and then grind it into enamel powder, or mix it with clay and wet it into enamel slurry. A certain metal oxide colorant is added during production, and after calcination, it will show its own inherent color and luster. Because the process is very complicated, the price of the enamel process is very high,
Due to the development of the current technology, people have invented imitating the hard enamel process. This makes the cloisonne process an economical and efficient raw material for production

The production process of Hard enamel pins

1. Design drawing of Hard enamel pins,
2 Engraving the badge steel mold on the computer numerical control machine,
3 Die stamping and forming of red copper
4. Fill the concave with color paste, and finally bake at high temperature, polish and grind by hand until the surface is shiny.

What is a hard enamel pin