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Regenerated process method for welding glass tube neck of vertical color kinescope

A technology for color picture tubes and glass tubes, applied in defective lamp/lamp repair/regeneration, recycling technology, electronic waste recycling, etc. and other problems to achieve the effect of reducing product cost

Inactive Publication Date: 2009-01-21
IRICO DISPLAY DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of equipment structure and working principle, large screens above 29 inches and 16:9 varieties will generate centrifugal force when rotating, and the tubes are easy to fly out, affecting the personal safety of operators, and the N regeneration accuracy is difficult to control

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The color picture tubes judged to be defective are deflated to ensure the safety of follow-up work. Then cut off the explosion-proof belt of the color picture tube, so that the following operations will not be affected by the explosion-proof belt. Continue to cut the tube neck of the color picture tube, and the size of the tube neck retained after cutting must be greater than 50 cm. Then place the color picture tube screen to be processed on the N regeneration device so that the glass tube neck of the color picture tube is vertically aligned with the straight glass tube up and down, and preheated with a gas burner, and the preheating temperature is controlled at 700°C Below, the time is 5 minutes; followed by high-temperature welding, the welding temperature is 800 ° C; finally, annealing treatment is performed at 450 ° C for 5 minutes. Finally, the fusion of the glass neck of the color picture tube and the glass straight tube is completed, and the glass neck and the g...

Embodiment 2

[0012] Place the screen of the color picture tube to be processed on the N regeneration device so that the glass neck of the color picture tube is vertically centered with the glass straight tube;

[0013] Use a gas burner to preheat it, and the preheating temperature is controlled at 500°C for 4 minutes;

[0014] Carry out high temperature welding, the welding temperature is 700°C;

[0015] Finally, an annealing treatment is performed at a temperature of 300° C. for 4 minutes. Finally, the fusion of the glass neck of the color picture tube and the glass straight tube is completed, so that the glass neck and the glass straight tube are connected together and become a whole.

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PUM

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Abstract

The invention discloses a welding regeneration treatment method of a vertical chromoscope glass tube neck, which comprises the following steps: upwards arranging a to-be processed chromoscope screen on a N reclaimer, enabling the chromoscope glass tube neck to be vertically centered with a glass straight tube in an up-and-down mode, preheating for 3-5min with a gas fire head, and controlling the preheating under the temperature of 20-700 DEG C, then carrying out the high-temperature welding, wherein the welding temperature is at 700-1000 DEG C, and lastly, carrying out the annealing treatment for 3-6min under the temperature of 200-450 DEG C, finally, finishing the welding between the chromoscope glass tube neck and the glass straight tube, realizing the connection between the glass tube neck and the glass straight tube, and forming a whole body. The method can complete the regeneration treatment of the glass tube neck of a big screen chromoscope which is more than 74cm and a chromoscope product in a 16:9 tube type system.

Description

technical field [0001] The invention relates to a manufacturing method of a color picture tube, in particular to the high-temperature welding regeneration treatment of the glass tube neck of the color picture tube during the manufacture and trial production of the color picture tube. Background technique [0002] In the manufacturing process of color picture tubes, for various defective products after sealing, some of them can be cut off the glass tube neck and electron gun, re-soldered at high temperature, connected with a new glass tube neck tube, and then put into the color display tube from the previous process. Elephant tube manufacturing to realize the recycling and reuse of defective products. This recovery process is called glass tube neck regeneration in the production of color picture tubes, also called N regeneration, and the regeneration of glass tube necks is referred to as N regeneration below. [0003] In the past, N regeneration was performed by using a hori...

Claims

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Application Information

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IPC IPC(8): H01J9/50
CPCY02W30/82
Inventor 石笃笃牛建军刘国荣
Owner IRICO DISPLAY DEVICES
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