Application of Tungsten Wire in Glass Melting

Tungsten wire has an indispensable application in the heating, molding and experiment of glass melting due to its excellent high temperature performance and chemical stability. It is a key material in modern glass industry and scientific research.

First, tungsten wire is often used as a heating element for glass melting equipment. Since the melting point of tungsten is as high as 3422℃, which is far higher than the temperature required for glass melting (usually 1000-1600℃), tungsten wire can maintain structural stability at high temperatures and withstand long-term heating without deformation or melting. In glass manufacturing, tungsten wire can be used as a resistance heating element, directly energized to generate high temperature, melt the glass raw materials into liquid, and facilitate subsequent molding processes. For example, in the production of optical glass or special glass, tungsten wire heaters can provide a uniform and controllable high temperature environment to ensure the quality of glass.

Secondly, tungsten wire is used as a reinforcing material or electrode in glass melting molds or tools. In the manufacturing process of some precision glass products, such as glass fiber drawing or glass tube forming, tungsten wire can be used as electrode material, and other high-temperature resistant tungsten products can be used as drawing nozzles. The high strength and corrosion resistance of tungsten enable it to maintain stable performance under the erosion of high-temperature molten glass.

In addition, tungsten wire is also widely used in laboratory glass melting experiments. In small furnaces or experimental equipment, tungsten wire is often used as a heating coil or electrode to provide precise heating control for glass samples, helping researchers develop new glass materials or optimize melting processes.

However, the application of tungsten wire in glass melting also faces challenges. For example, tungsten is easily oxidized in a high-temperature oxidizing environment and needs to be used in an inert gas or vacuum environment to extend its service life. In addition, tungsten wire is expensive, and it is necessary to weigh economy and performance.

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