Fe-Ni-Co BASED ALLOY FOR FLAT MASK HAVING EXCELLENT LOW THERMAL EXPANSIBILITY AFTER BLACKENING TREATMENT

Title:

Fe-Ni-Co BASED ALLOY FOR FLAT MASK HAVING EXCELLENT LOW THERMAL EXPANSIBILITY AFTER BLACKENING TREATMENT

Document Type and Number:

Japanese Patent JP3469559

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To develop a mask material for a flat tube which has a small amount of thermal drift when assembled into a cathode-ray tube.
SOLUTION: The Fe-Ni-Co based alloy for a press forming type flat mask having excellent low thermal expansibility after blackening treatment has a composition containing 4.0 to 6.0% Co, 36.0 to 38.0% Ni+Co and 0.01 to 0.40% Mn, and further containing 0.20 to 0.40% Nb, and the balance Fe with inevitable impurities. Its thermal expansion coefficient after blackening treatment can be reduced while maintaining its high strength by the control of the ratios of Ni, Co and Mn, the selection of Nb as a strength increasing element, and the precise control of the amount of the Nb to be added.

More Like This:

JP3563988	High-strength steel pipe with excellent hydraulic formability
JPH01219122	PRODUCTION OF HIGH TENSION STEEL PLATE
WO/2020/111782	STEEL SHEET HAVING CORROSION RESISTANCE IN LOW CONCENTRATION SULFURIC ACID/HYDROCHLORIC ACID COMPLEX CONDENSATION ATMOSPHERE AND MANUFACTURING METHOD THEREFOR

Inventors:

Toshiyuki Ono

Application Number:

JP2001092312A

Publication Date:

November 25, 2003

Filing Date:

March 28, 2001

Export Citation:

Click for automatic bibliography generation Help