A process and its corresponding apparatus for strengthening a glass body or vitro-crystal material through a chemical temperature process. (Machine-translation by Google Translate, not legally binding)

摘要

A process and its corresponding apparatus for strengthening a glass body or glass-crystalline material by means of a process of chemical quenching, characterized the procedure because during the period in which the ion exchange takes place between the body and the contact medium the temperature of the body it is forced to decrease within a range of temperatures that is high enough to produce a relaxation of forces in the body and the ions that penetrate the body are such that they confer a low coefficient of thermal expansion on the outer layers of the body, or within a range of temperatures below the annealing point of the body when the ions that penetrate the body are greater than the substituted ions of the body. (Machine-translation by Google Translate, not legally binding)