SU907636A1

SU907636A1 - Method of explosion-protection of kinescopes

Info

Publication number: SU907636A1
Application number: SU802988730A
Authority: SU
Inventors: Эвальд Адамович Предикер; Валерий Кузьмич Тюпин
Original assignee: Предприятие П/Я Г-4294
Priority date: 1980-10-03
Filing date: 1980-10-03
Publication date: 1982-02-23

Description

(5) способ ВЗРЫВОЗАИ ТЫ КИНЕСКОПОВ(5) EXPLOSION KINESCOPE method

II

Изобретение относитс к производству кинескопов, в частности к слособам взрывозащиты кинескопов.The invention relates to the production of picture tubes, in particular to the explosion protection methods of picture tubes.

Известен способ взрывозащиты кинескопов обкаткой стальной лентой |1 J.The known method of explosion protection kinescopes run-in steel tape | 1 J.

Однако это опасно дл целостности кинескопа.However, it is dangerous to the integrity of the kinescope.

Известен также способ взрывозащиты , заключающийс в том, что на стык между колбой и экраном накладываетс металлический бандаж, на концы которого прикладываетс внешнее ст гивающее усилие дл обжати критической зоны кинескопа, затем на концы бандажа накладываетс отрезок ленты, который привариваетс к последним точечной сваркой 2.An explosion protection method is also known in that a metal band is applied to the joint between the flask and the screen, the ends of which are externally applied to compress the critical area of the kinescope, then a piece of tape is applied to the ends of the bandage, which is welded to the last spot welding 2.

Недостатком известного способа вл етс необходимость приложени большого ст гивающего усили до 9000 И на концы бандажа, а также необходимость производить сварку бандажа непосредственно на самом кинескопе.The disadvantage of this method is the necessity of applying a large shaking force up to 9000 on the ends of the band, as well as the need to weld the band directly on the tube itself.

Цель изобретени - уменьшение прилагаемых внешних усилий дл получени необходимого обжати критической зоны кинескопа.The purpose of the invention is to reduce the applied external efforts to obtain the necessary reduction of the critical zone of the kinescope.

Поставленна цель достигаетс тем, что согласно способу взрывозащиты кинескопов , включающему наложение металлического бандажа на критическую зону кинескопа, и обжатием критической зоны, в качестве бандажа исполь10 зуют два металлических кольца, отформованных по периметру критической зоны кинескопа, между которыми вставл ют распорки, внешнее усилие дл обжати критической зоны приклады15 вают к упом нутым кольцам в направлении , перпендикул рном их плоскости, в промежутках между распорками.The goal is achieved by the fact that, according to the method of explosion protection of kinescopes, including the imposition of a metal band on the critical zone of the kinescope, and the crimping of the critical zone, two metal rings formed around the perimeter of the critical zone of the kinescope, between which the spacers are inserted, are used as a bandage the compression of the critical zone is applied to the said rings in the direction perpendicular to their plane, in the intervals between the struts.

На чертеже изображен кинескоп с использованием предлагаемого способа The drawing shows a kinescope using the proposed method

20 взрывозащиты.20 explosion protection.

Claims

The metal rings 1 are put on the critical zone 2 of the kinescope 3 with a distance between them - B - 1 4 mm. Then between the rings 1 on the side sections of the critical zone 2 for distances L 100 - 150 mm from each other. friend insert struts k. In the middle, not between two adjacent struts, an external force F is applied to the rings 1 in a direction perpendicular to the plane of the rings. A metal strip 5 5-10 mm wide and 0.2-0.3 mm thick is applied to the places of external force application and secured, for example, by spot welding with b or by another known method. The fixing angles 7 are inserted before tensioning the rings 1 between the glass tube of the kinescope 3 and the rings, or welded to the rings before putting them on the kineskrp. The distance between the struts k and their number is chosen based on the desired external force F, the required amount of force of compression of the critical zone of the kinescope and the density of the initial fit of the rings to the critical zone of the kinescope. In this case, with a small external shaking force F, a considerable force is achieved to compress the critical zone of the kinescope, equal to (- 20) F. Example. Molded rings of steel wire with a diameter of 3 mm, the ends of which are butt-welded, are deposited at the critical zone of the shell of the 61LKZB 1 kinescope. The distance between the rings is 13 mm. Three long spacers are installed on the long sides of the critical zone of the kinescope, for two short ones. The distance between adjacent spacers is 1QO mm. The maximum shrinking force of the rings outside of it is 600 I. At the same time, in the case of tangency of the rings during their tightening, the compressing force of the critical zone is 10-0) 9230 I. This was done (2-600 points of compression of the critical zone ensures the explosion safety of the kinescope. 4 Using the proposed method of explosion protection reduces the external force required to reduce the critical zone 14 to 20 times without reducing the explosion safety of the kinescope and eliminates the need to weld the band directly on the tube. The proposed method of explosion protection makes it possible to significantly simplify the machines for winding the bandage, since there is no need for a special winding device. with a certain effort. At the same time, labor productivity increases by 1, - 1, 8 times, the cost of the material for the bandage decreases. The expected economic effect from using the proposed method is 300-400 thousand rubles per year. including the imposition of a metal band on the critical zone of the kinescope, compression of the critical zone, so that, in order to reduce the applied external efforts to obtain the necessary reduction of the critical zone, as a bandage Two metal rings molded around the perimeter of the critical zone of the kinescope are used, between which spacers are inserted, an external force for compressing the critical area is applied to the said rings in the direction perpendicular to their plane, between the spacers. Sources of information taken into account in the examination 1. GDR patent number 61577, cl. 21 g 13/28, 1967.

2. Japanese Patent N 22826, cl. H 01 J 29/36, 1971 prototype.