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Pipe reduction device for improving density of filled powder in getter mercury dispenser

A getter and powder technology, which is applied in the shrinking device field of mercury release getter, can solve the problems of reducing the quality of mercury release getter, affecting normal use, and limiting the application range, etc., to achieve increased adhesion, improved Quality, the effect of expanding the scope of application

Inactive Publication Date: 2011-12-21
NINGBO OULAIKE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually the powder density in the mercury release getter at this time is 4mg / mm 3 On the other hand, the mercury-releasing getter with the density value of the powder filler will often lose powder during use, which will affect the normal use, reduce the quality of the mercury-releasing getter, and limit its application range

Method used

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  • Pipe reduction device for improving density of filled powder in getter mercury dispenser
  • Pipe reduction device for improving density of filled powder in getter mercury dispenser
  • Pipe reduction device for improving density of filled powder in getter mercury dispenser

Examples

Experimental program
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Effect test

Embodiment 1

[0017] Embodiment 1: A tube shrinking device for improving the density of the filling powder in the mercury-releasing getter, including a feeding device capable of axially moving the metal sleeve 1 filled with the powder filling agent, and also including the diameter of the metal sleeve 1 Clamping mechanism that applies force.

[0018] The clamping mechanism includes a compression mold 2 and an impact cam 3. The compression mold 2 includes a base plate 21 and two mutually symmetrical modules 22. The base plate 21 is provided with a slideway for the two modules to move, and the two modules 22 are arranged on the impact cam 3. Inside, the compression mold 2 and the impact cam 3 rotate relatively. A pair of cams 31 are evenly distributed inside the impact cam 3. The outer edge of the back of the cross section of the module 22 is an arc curve, and the radius of curvature from the center of the arc curve to both sides gradually decreases. , when the cam 31 pushes to the center of t...

Embodiment 2

[0022] Embodiment 2: Other parts are the same as Embodiment 1, the difference is that the impact cam 3 is stationary, and a motor is connected to the compression mold 2 to make the compression mold 2 rotate.

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Abstract

The invention discloses a pipe reduction device for improving density of filled powder in getter mercury dispenser, comprising a feeding device and a clamping mechanism, wherein the feeding device causes a metal casing filled with powder to carry out axial movement, and the clamping mechanism applies radial force on the metal casing. The invention is characterized in that the clamping mechanism applies radial pressure on the metal casing to reduce the diameter of the metal casing so as to increase the density of the filled powder in the getter mercury dispenser. The invention increases the filled powder density by about 30%; and because the filled powder density is improved, mutual adhesive force is improved, the picking phenomenon has small possibility of occurring, the quality of the getter mercury dispenser is improved, and the application range thereof is expanded.

Description

technical field [0001] The invention relates to a tube shrinking device for a mercury-releasing getter, in particular to a tube shrinking device for increasing the density of powder filling in the mercury-releasing getter. Background technique [0002] Various fluorescent lamps, energy-saving lamps and cold cathodes are more and more widely used, especially in a large number of backlight sources such as LCD TVs, LCD computer monitors and mobile phone LCD screens. In the traditional production process, it is necessary to inject liquid mercury into the lamp tube. In the traditional production process, liquid mercury is dripped into the tube when the lamp tube is exhausted. There are some disadvantages in this manual mercury injection method, because the weight of each drop of mercury ranges from tens of milligrams to one hundred milligrams, which not only makes the accuracy of the control of the amount of mercury dripped relatively poor, but also consumes a lot of mercury, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/39
Inventor 刘劲赵红伟徐南通
Owner NINGBO OULAIKE ELECTRONICS TECH