There are two sealing methods of glass and metal: matching sealing and compression sealing. Matching sealing is to select glass and metal with close expansion coefficient (within the range from room temperature to glass softening temperature), and keep the glass and metal shrinkage consistent in the gradual cooling process after high-temperature sealing, so as to reduce the internal stress caused by the difference between glass and metal shrinkage. Compression sealing refers to the selection of metal material expansion coefficient than the glass expansion coefficient is large, in the sealing cooling due to the metal contraction than the glass contraction is large, so that the metal on the glass to produce a compressive stress (the use of glass to withstand the compression capacity is far greater than the tensile capacity of the characteristics), in order to achieve the purpose of sealing. The current compression sealing technology needs to be improved. The materials and control parameters of the sealing are to be further discussed, and there is a fatal weakness of poor electrical performance in compression sealing.

The sealing process of glass and metal is a complex physical and chemical reaction process. The sintering parameters must be determined according to the oxidation reaction between glass and metal during the whole sealing process. In addition to ensuring that the expansion coefficient of the glass in the process of solidification is basically the same as that of the metal, the phenomena of pre-oxidation of the metal, the change of viscosity of the glass liquid, the second recrystallization and the phase separation of the glass during cooling must be fully considered.

Welding metallic glass to metal has always been a problem. Recently, Korean enterprises and well-known enterprises in Taiwan came to amorphous China to discuss the problem of metal glass and metal welding and seek for technical support, such as the welding of metal golf clubs and metal glass ball heads, the application of metal glass in metal machinery as wear resistant parts, and so on. These are perplexing all the time industrial to metallic glass industrialization is advanced. Amorphous China has also been following the development of this technology and hopes that research in this field will help establish industry-university-research collaboration.

Can glass be welded?

It can be welded.

A move through the narrow tunnel furnace or similar devices in the single glass, after cutting and washing when necessary, at least for edges polished, flatten each other, and in the preheating below the glass transition temperature of preheating temperature, the upright position will be the level of the glass edge and vertical edge welded to each other.

The utility model is characterized in that a single glass plate which has been cut off and washed when necessary is heated individually to form a steering surface between the glass plates of multiple glass plates; Then the single glass plate is leveled, and a group of single glass plates making multiple glass plates are put together to realize the welding at the edges.