| 摘要 |
PURPOSE:To facilitate sealing and binding to be able to have the body opening part and the input window sufficiently withstand vacuum in such a way that Ni-plating laminate is formed around the outer peripheral edge of the opening part, thinner Ni-plating laminate than the above-mentioned is formed around the outer peripheral edge of the input window, and the both outer peripheral edges are welded under heat and pressure. CONSTITUTION:When an input window 2 composed of Al is bound to the opening part of cylindrical outer enclosure body 1 composed of Fe or Fe alloy, such as SUS, KOV, mu metal, etc., Ni-plating laminate 11 is formed for example in the thickness of approximately 20mu around the outer peripheral edge of the opening part. On the other hand, for the purpose that characteristics of Al itself may not be lost even around the outer peripheral edge 2a of the input window 2, and it is protected not to cause instable conditions, such as defects at the time of binding, thinner Ni-plating laminate 12 than the Ni-plating laminate 11 is formed. Then, binding under pressure is done under atmosphere in which the outer peripheral edges 1a, 2a formed Ni-plating laminates 11, 12 are heated. This facilitates to perform sealing and binding which can sufficiently withstand the vacuum onto the opening part of the body 1 and the input window 2. |
