| 摘要 |
This disclosure depicts method and apparatus useful in the manufacture of color cathode ray tubes of the type having a color selection electrode supported in spaced relationship to a faceplate portion of the tube envelope. More particularly, this disclosure depicts method and apparatus for securing on the envelope studs employed in supporting the electrode. By the use of an alignment fixture, there is positioned and held on an inner surface of the envelope at the intended location of the studs, jigs which temporarily support the studs at the precise intended locations thereof. The jigs are temporarily secured to the envelope inner surface by the use of an air-hardenable, room temperature cement such that the studs are accurately and firmly held at the said precise locations. The alignment fixture is then removed and a cement of a type which cures at high temperature is located between the studs and the envelope inner surface. The faceplate with the jigs attached is baked to cure the high temperature cement and thereby permanently affix the studs to the envelope. Finally, the jigs are broken loose and removed from the envelope to leave the studs permanently cemented to the envelope. The jigsg and alignment fixtures are disclosed in detail.
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