Metal Enamel Pin products mainly have two components: the metal material used in Metal Enamel Pin products and the enamel (inorganic glass material).
1. Metal materials for Metal Enamel Pin products
Metal materials used in Metal Enamel Pin products mainly include steel, cast iron, aluminum, copper and stainless steel. Steel for enamel generally refers to low-carbon steel plate, that is, steel plate with lower carbon content, which is the main material used for the inner tank of volumetric water heater. Because its chemical composition, internal microstructure, surface condition and mechanical properties play an important role in the quality of enamel, the major manufacturers of Metal Enamel Pin products on the market all use high-quality steel plates for enamel to ensure quality.
2. Enamel (inorganic glass material)
The enamel raw materials used for enamel mainly include three categories: mineral raw materials, chemical raw materials and pigment raw materials.
Mineral raw materials are the main components of porcelain glaze and occupy a relatively large proportion of content. It mainly includes: quartz, feldspar, and clay.
Chemical raw materials are auxiliary components of enamel, which mainly include: borax (Na2B4O710H2O), sodium nitrate (NaNO3), soda ash (Na2CO3), lithium carbonate (Li2CO3), calcium carbonate (CaCO3), magnesium oxide (MgO), zinc oxide ( ZnO), titanium dioxide (TiO2), antimony oxide (Sb2O3), zirconium dioxide (ZrO2), cobalt oxide (CoO), nickel oxide (NiO), manganese dioxide (MnO2), iron oxide (Fe2O3), etc.
Pigment raw materials refer to materials used to decorate the color of enamel. There are 9 types: black, blue, brown, gray, green, pink, white, yellow, and red.
The production of Metal Enamel Pin products enamel is to melt the above three raw materials according to a certain ratio at a high temperature of about 1200 ℃, and then rapidly cool them into granular or flake borosilicate glass. It is divided into base glaze, top glaze, side glaze and decorative flower glaze according to the process performance; according to the different matrix materials, it is divided into steel glaze, cast iron glaze, copper enamel glaze, aluminum enamel glaze, and stainless steel enamel glaze.
