Abstract: An Fe—Ni alloy material for a shadow mask having, in terms of % by weight, 34.0 to 38.0% of Ni, 0.05 to 0.45% of Cu, 0.10 to 0.50% of a combined total for Mn and Cu, no more than 0.10% of Si and 0.0004 to 0.005% of S with the balance being Fe and other unavoidable impurities; wherein a total count of MnS precipitates and Cu—S type precipitates having a diameter of 0.01 to 3 &mgr;m located on the surface of a foil strip 0.05 to 0.3 mm thick being at least 2,000 count/mm2.

Abstract: A method of controlling holding pressure in an injection molding operation and an apparatus therefor, wherein the quality of molded products can be controlled with a high accuracy without the need for a pressure sensor in a mold and without requiring any additional data such as the thickness of a molded product, the effective heat diffusion rate, and so on. Further, a method for estimating resin temperature in injection molding and an appartus therefor, wherein in-mold resin temperature in a holding pressure and cooling stage is estimated during injection at a high speed and with a high accuracy.