发明名称 GLASS JOINING METHOD
摘要 PURPOSE:To provide a glass joining method to eliminate holes in glass and to decrease glass cracks at the time of working by executing joining in a high-pressure inert gaseous atmosphere under heating and a heat treatment in order to remove remaining strain (stress). CONSTITUTION:High melting nonmagnetic films 11 consisting of SiO2, etc., are formed by a vapor deposition or sputtering method on the surfaces intended to be joined of magnetic ferrite cores 9, 11 and thereafter, low melting glass films 12 for improving joint strength are formed on the films. The cores are then assembled by bringing the surfaces to be intended of said cores into contact with each other and pressing the cores by means of a jig 14 from both sides and inserting a gap reinforcing glass rod 14 having the same working temp. as the working temp. for welding to the low melting glass or the lower temp. into the groove part 13 of the magnetic ferrite core 9. This assembly is heated up by a hot isostatic press (HIP) up to the working temp. at which the low melting glass and the gap reinforcing glass are welded; in addition, the assembly is joined under >=20atm. isostatic pressure exerted thereto. The assembly is subjected to the heat treatment in order to remove the strain of the joined members. The holes to be generated in the glass and the glass cracks generated at the time of working after the joining are thereby decreased and the mass productivity and yield are improved.
申请公布号 JPS63249915(A) 申请公布日期 1988.10.17
申请号 JP19870084092 申请日期 1987.04.06
申请人 HITACHI METALS LTD 发明人 KANAI KUNIO;USHIJIMA MAKOTO;YAMAZAKI MASANOBU
分类号 G11B5/127 主分类号 G11B5/127
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