Masking device for cathode-ray tube of visualiu00e7u00e3o color flat screen, of the type which comprises a framework of support for shadow mask and shadow mask stretched extended

摘要

Invention patent: b "masking device for cathode-ray tube of visualiu00e7u00e3o color flat screen.The type that includes a table support for shadow mask is stretched and extended "shadow mask.Masking device for cathode-ray tube display in color flat screen.The type that includes a table support for shadow mask is stretched and a mask shadow extended mounted within support so as to be subjected to a tension in the ambient temperatureAnd, in the framework of support is made of alloy of Fe - Ni hard rubber which has a coefficient of thermal expansion between 20 u00b0 C and 150 u00b0 C less than 5 x 10 ^ 6 ^ / K and a limit of elasticity RP0,2 to 20 u00b0 C of more than 700 MPa, and the shadow mask is stretched is made of Fe Ni alloy or both hard rubber which has a coefficient of thermal expansion between 20 u00b0 C and 150 u00b0 C less than 5 x 10 ^ 6 ^ / K.Figure 1.