Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Technique for processing fusing-seal of color kinescope port

A color picture tube, melting sealing technology, applied in the direction of manufacturing tools, electric tube/lamp off, glass remolding, etc., can solve the problems of high production cost, complex equipment, low yield rate, etc., to simplify the sealing production process, reduce Energy consumption, the effect of good economic benefits

Inactive Publication Date: 2009-11-25
IRICO DISPLAY DEVICES
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment used in the original process technology is very complicated. There are more than ten burner stations, and various high-purity industrial gases such as natural gas, coal gas, oxygen, nitrogen, and high-pressure air are used. It is difficult to control precision, and the yield rate is low. There are many work stations, the production process is complicated, and the production cost is high
And the present sealing technique is to use a kind of annular gas or natural gas burner, the annular gas or natural gas burner is in the left and right swing state all the time in sealing preheating, annealing process, and the temperature of the burner, the height of the burner are very important to the electron gun and the pipe neck position that will carry out sealing processing. It is difficult to effectively control the accuracy of

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] First, heat the neck of the color picture tube and the core column of the electron gun, that is, preheat, and the preheating temperature is 500°C;

[0013] Seal the tube neck of the color picture tube and the core column of the electron gun by means of electric heating blower, and directly carry out preheating treatment. The preheating time is 100 seconds, the blowing flow rate is 10L / min, and the temperature is controlled at 20°C;

[0014] Use natural gas and oxygen annular burner to burn the sealing part of the tube neck, and the temperature range is 600 ° C; the glass at the sealing part of the tube neck of the color picture tube and the core column of the electron gun is melted and sealed together;

[0015] The annealing treatment is carried out on the color picture tube which has been sealed and melted. The annealing temperature is higher than the strain temperature of the glass for 40 seconds, the blowing flow rate is 10L / min, and the temperature control range is 5...

Embodiment 2

[0017] First, heat the neck of the color picture tube and the core column of the electron gun, that is, preheat, and the preheating temperature is 550°C;

[0018] The color picture tube neck and the core column of the electron gun are sealed by electric heating blower, and the preheating treatment is carried out directly. The preheating time is 120 seconds, the blowing flow rate is generally 15L / min, and the temperature control range is 200°C;

[0019] Use natural gas and oxygen annular burner to burn the sealing part of the tube neck, and the temperature range is 700 ° C; the glass at the sealing part of the tube neck of the color picture tube and the core column of the electron gun is melted and sealed together;

[0020] The annealing treatment is performed on the color picture tube that has been sealed and melted. The annealing temperature is higher than the strain temperature of the glass for 80 seconds, the blowing flow rate is 15L / min, and the temperature control range is...

Embodiment 3

[0022] First, heat the neck of the color picture tube and the core column of the electron gun, that is, preheat, and the preheating temperature is 600°C;

[0023] The color picture tube neck and the core column of the electron gun are sealed by electric heating blower, and preheating treatment is carried out directly. The preheating time is 150 seconds, the blowing flow rate is 20L / min, and the temperature control range is 450°C;

[0024] Use natural gas and oxygen annular burner to burn the sealing part of the tube neck, and the temperature range is 800 °C; the glass at the sealing part of the tube neck of the color picture tube and the core column of the electron gun is melted and sealed together;

[0025] The annealing treatment is carried out on the color picture tube which has been sealed and melted. The annealing temperature is higher than the strain temperature of the glass for 120 seconds, the blowing flow rate is 20L / min, and the temperature control range is 200°C.

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a process for color picture tube sealing and melting treatment. The invention uses a new technology of electric heating blower to perform preheating and annealing treatment during sealing. The sealing is mainly to complete the high temperature of the color picture tube neck and electron gun glass plate. Fusion sealing, which belongs to the category of glass thermal processing, involves the fusion sealing of the neck glass and the stem glass, the matching sealing of the glass and the stem wire, and the matching of the thermal expansion coefficient of the glass with the wire and the glass conversion must be solved. Temperature, glass softening temperature, glass annealing temperature and other key technologies, to solve these technologies is mainly to solve the preheating and annealing treatment, the quality of preheating and annealing treatment directly affects the success rate of good sealing products. By adopting the new process technology disclosed by the invention, the yield rate of color picture tube seal manufacturing can be greatly improved, and the experimental trial seal of new tube shapes of various tube neck models can be guaranteed.

Description

technical field [0001] The invention relates to a color picture tube manufacturing process, in particular to a color picture tube sealing and melting treatment process. Background technique [0002] Sealing is a very critical process in the color picture tube manufacturing process. It is mainly to complete the high-temperature fusion sealing of the electron gun and the color picture tube neck, so that the two are sealed together and become a tube shell that can be evacuated. At present, the electron gun sealing technology adopted by all color picture tube manufacturers is the torch melting technology, and the sealing technology mainly includes three stages of preheating, melting sealing and annealing. The equipment used in the original process technology is very complicated. There are more than ten burner stations, and various high-purity industrial gases such as natural gas, coal gas, oxygen, nitrogen, and high-pressure air are used. It is difficult to control precision, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01J9/40C03B23/20
Inventor 石笃笃牛建军刘国荣袁作臻
Owner IRICO DISPLAY DEVICES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com