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Oxidation method of oscilloscope stem guide wire and its application

A technology of oscilloscope tube and guide wire, which is applied in the manufacture of discharge tubes/lamps, electrical components, cold cathodes, etc. It can solve the problems of reduced sealing strength and easy leakage of sealed parts, so as to improve reliability , The product has good air tightness and good sealing quality

Inactive Publication Date: 2015-08-12
南京华东电子真空显示科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thickness of the oxide layer cannot be controlled within a certain range. If the oxide layer is too thin, it will completely melt into the glass, resulting in direct sealing between the glass and the metal substrate surface, which will reduce the sealing strength. If the oxide layer is too thick, it will cause thicker residue on the metal surface. The rough and loose oxide film makes the sealing parts prone to air leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] The oxidation method of the oscilloscope tube stem guide wire comprises the following process steps:

[0014] 1) Guide wire surface cleaning: put the 4J29 guide wire that needs to be oxidized in a barrel-type tumbling equipment, put in grinding fluid and alumina abrasives, and tumbling for 8 hours to ensure that the dirt on the surface is removed and the surface is smooth;

[0015] Described grinding fluid comprises LM-38 type brightener, 802 type industrial detergent and tap water, wherein LM-38 type brightener, and the mass ratio (0.1:1) of guide wire, 802 type industrial detergent and guide wire The mass ratio (0.1:1), the mass ratio of tap water and guide wire (1:1), the diameter of alumina abrasive is Ф<3mm, and the mass ratio of guide wire (3:1).

[0016] 2) Decarburization by heating in hydrogen: Put 1Kg 4J29 guide wire into the push plate type hydrogen burning furnace each time, put it directly into the high temperature zone, and raise the temperature to 1050oC ...

Embodiment 2

[0022] The oxidation method of the oscilloscope tube stem guide wire comprises the following process steps:

[0023] 1) Guide wire surface cleaning: put the 4J29 guide wire that needs to be oxidized in a barrel-type tumbling equipment, put in grinding liquid and alumina abrasives, and tumbling for 12 hours to ensure that the dirt on the surface is removed and the surface is smooth;

[0024] Described grinding fluid comprises LM-38 type brightener, 802 type industrial detergent and tap water, wherein LM-38 type brightener, and the mass ratio (0.1:1) of guide wire, 802 type industrial detergent and guide wire The mass ratio (0.1:1), the mass ratio of tap water and guide wire (1:1), the diameter of alumina abrasive is Ф<3mm, and the mass ratio of guide wire (3:1).

[0025] 2) Decarburization by heating in hydrogen: put 5Kg 4J29 guide wire into the push plate type hydrogen burning furnace each time, put it directly into the high temperature zone, and raise the temperature to 1200o...

Embodiment 3

[0029] The oxidation method of the oscilloscope tube stem guide wire comprises the following process steps:

[0030] 1) Guide wire surface cleaning: put the 4J29 guide wire that needs to be oxidized in a barrel-type tumbling equipment, put in grinding fluid and alumina abrasives, and tumbling for 10 hours to ensure that the dirt on the surface is removed and the surface is smooth;

[0031] Described grinding fluid comprises LM-38 type brightener, 802 type industrial detergent and tap water, wherein LM-38 type brightener, and the mass ratio (0.1:1) of guide wire, 802 type industrial detergent and guide wire The mass ratio (0.1:1), the mass ratio of tap water and guide wire (1:1), the diameter of alumina abrasive is Ф<3mm, and the mass ratio of guide wire (3:1).

[0032] 2) Decarburization by heating up in hydrogen: Put 3Kg 4J29 guide wire into the push plate type hydrogen burning furnace each time, put it directly into the high temperature zone, and raise the temperature to 100...

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PUM

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Abstract

The invention relates to an oxidation method of a stem guide wire of an oscilloscope tube and application thereof. The method comprises the following steps: firstly, carrying out guide wire surface cleaning; to be specific, placing 4J29 guide wires needing oxidation in a barrel type barreling device, placing grinding fluid and an aluminum oxide grinding material into the device and carrying out barreling; secondly, carrying out temperature rising and decarburization in hydrogen; to be specific, placing 1Kg to 5Kg of 4J29 guide wires in a push-plate type hydrogen furnace each time and particularly in a high-temperature zone directly, and carrying out temperature rising and thermal insulation in a hydrogen gas reduction environment; thirdly, forming an oxidation layer under the high temperature; to be specific, taking out the metal guide wires directly under the temperature of 1050 DEG C to 1200 DEG C without the temperature reduction process and placing the metal guide wires in an atmosphere under the temperature of 0 DEG C to 40 DEG C with rapid temperature reduction to a room temperature; and fourthly, carrying out verification. The advantages are as follows: firstly, because a low-valence oxide is used and is easily soaked by a piece of glass, good sealing between the glass and the guide wires is formed, thereby improving the sealing quality; and secondly, the oxidation method of the stem guide wire can be widely applied to manufacturing of stems of oscilloscope tubes of various types.

Description

technical field [0001] The invention relates to an oxidation method of an oscilloscope tube stem guide wire and an application thereof, belonging to the technical field of oscilloscope tube device manufacturing. Background technique [0002] The stem is the circuit channel inside and outside the oscilloscope tube, which is made of pressed glass. The electron gun is fixed on the stem and sealed with the glass bulb neck glass to form a closed space, which isolates the atmosphere inside and outside the vacuum electronic device and keeps The vacuum environment required for the inner workings of vacuum electronic devices. A certain number of metal guide wires are also pressed in the stem glass, which are used to add various voltages and signals of the external circuit to the corresponding electrodes of the electron gun through the stem guide wires. The glass widely used in the manufacture of the oscilloscope tube stem is borate hard glass, and the main components of the metal gu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/28H01J9/32
Inventor 胡月州毕军
Owner 南京华东电子真空显示科技有限责任公司