Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co LtdfiledCriticalNippon Mining Co Ltd
Priority to JP21129087ApriorityCriticalpatent/JPS6456824A/en
Publication of JPS6456824ApublicationCriticalpatent/JPS6456824A/en
PURPOSE:To produce the title shadow mask material having appropriate surface roughness and surface form by cold-rolling and heat-treating a hot-rolled material, and then finally cold-rolling the material with a rolling roll having the surface dulled by a laser beam. CONSTITUTION:The ingot obtained by refining and then casting low-carbon killed steel, etc., is hot-rolled. The hot-rolled material is cold-rolled and heat- treated one or more times, and finally cold-rolled to a prescribed sheet thickness. In the final cold rolling, the surface roughness Ra of the material is controlled to 0.2-1.0mum and the Sm to <=100mum with the rolling roll having the surface dulled by laser beam machining. By this method, a degreased shadow mask material exhibiting excellent adhesion of the resist film and blackened film in the succeeding stage for producing a shadow mask can be obtained.
JP21129087A1987-08-271987-08-27Production of shadow mask material
PendingJPS6456824A
(en)