Shadow mask sheet, method of producing same and cathode ray tube provided therewith

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni, 0.001-3 weight % in totality of at least one element selected from the group consisting of Nb, Ti, Zr, Mo, V, W, Be, Si, Al and Ta, the balance being substantially Fe and inevitable impurities, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight % of Ni, the balance being substantially Fe and inevitable impurities, a part of Ni being substituted with 10 weight % or less of Co and/or 5 weight % or less of Cr, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni and 0.0001-0.001 weight % in totality of at least one element selected from the group consisting of B, Mg and Ca, the balance being substantially Fe and inevitable impurities, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni, and 0.001-3 weight % in totality of at least one element selected from the group consisting of Nb, Ti, Zr, Mo, V, W, Be, Si, Al and Ta, the balance being substantially Fe and inevitable impurities, a part of Ni being substituted with 10 weight % or less of Co and/or 5 weight % or less of Cr, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni, 0.001-3 weight % in totality of at least one element selected from the group consisting of Nb, Ti, Zr, Mo, V, W, Be, Si, Al and Ta, and 0.0001-0.001 weight % in totality of at least one element selected from the group consisting of B, Mg and Ca, the balance being substantially Fe and inevitable impurities, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni, and 0.0001-0.001 weight % in totality of at least one element selected from the group consisting of B, Mg and Ca, the balance being substantially Fe and inevitable impurities, a part of Ni being substituted with 10 weight % ,or less of Co and/or 5 weight % or less of Cr, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.

A shadow mask sheet having excellent etchability and made of an Fe-Ni invar alloy consisting essentially of 30-40 weight of Ni, 0.001-3 weight % in totality of at least one element selected from the group consisting of Nb, Ti, Zr, Mo, V, W, Be, Si, Al and Ta, and 0.0001-0.001 weight % in totality of at least one element selected from the group consisting of B, Mg and Ca, the balance being substantially Fe and inevitable impurities, a part of Ni being substituted with 10 weight % or less of Co and/or 5 weight % or less of Cr, said sheet having a percentage of {100} texture of 85% or more in a rolled surface, and having a fibrous microstructure in a transverse cross section of said sheet.