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As for the glaze where at the metal - ceramic connection union which uses the glaze formation equipped ceramic component and the vacuum switch unit
As for the glaze where at the metal - ceramic connection union which uses the glaze formation equipped ceramic component and the vacuum switch unit
PROBLEM TO BE SOLVED: To provide a ceramic member having a glazed layer, furnished with a high softening point and consequently scarcely generating deteriorations in insulating properties, etc., caused by surface roughening and adhesion of stains, when a metallic part is jointed by brazing.;SOLUTION: This ceramic member having the glazed layer is obtained by forming the glazed layer on the surface of a main body comprising a ceramic material, wherein the glazed layer 71 contains an SiO2 component composing the main component for forming a glassy material in an amount of 60-74 wt.% and, on the other hand, an Al2O3 component (alumina component) having the high melting point in an amount of 16-30 wt.% which is rather a large amount than ever. Therefore, the softening point of the glazed layer 71 can be increased and, consequently, the deteriorations of the glazed layer 71 in the appearance caused by the surface roughening, in the insulating properties caused by adhesion of stains, etc., are difficult to be generated when the metallic member 61 is jointed by brazing treatment after glazing, especially when subjected to brazing treatment under a high vacuum.;COPYRIGHT: (C)2001,JPO
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机译:解决的问题:提供一种具有釉层的陶瓷构件,该釉构件具有高的软化点并且因此当通过钎焊接合金属部件时由于表面粗糙和污渍的附着而几乎不引起绝缘性能等的劣化。解决方案:具有釉层的该陶瓷构件是通过在包含陶瓷材料的主体的表面上形成釉层而获得的,其中釉层71包含SiO 2组分,该SiO 2组分构成用于在玻璃中形成玻璃状材料的主要组分。另一方面,高熔点的Al 2 O 3组分(氧化铝组分)的含量为60-74wt。%,比以往任何时候都大,为16-30wt。%。因此,可以提高釉面层71的软化点,因此,难以引起由表面粗糙引起的外观上的釉面层71的劣化,由污渍的附着等引起的绝缘性的劣化。上光后进行钎焊处理使金属构件61接合时产生的,特别是在高真空下进行钎焊处理时产生的。COPYRIGHT:(C)2001,JPO
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