| 摘要 |
PURPOSE:To improve the press formability, buckling resistance and resonance resistance by adding prescribed percentages of C, Si, Al, Mn, Ni and Cr to Fe and providing a prescribed grain size. CONSTITUTION:This shadow mask consists of, by weight, <=0.1% C, <=0.3% Si, <=0.3% Al, 0.1-1% Mn, 20-30% Ni and the balance Fe or further contains <=10% Cr and has grain size No. >=5. The mask has superior press formability, buckling resistance and resonance resistance, and when the mask is incorporated into a color picture tube, the colorimetric purity of the tube is maintained.
|
