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Method for glazing LOGO on metallized ceramic tube

A metallized ceramic and marking technology, applied in the field of production technology, can solve the problems of high melting point of high-temperature glaze, easy to fall off, bond strength, and inability to develop color, etc., achieve color stability, rapid curing and qualitative improvement, and improve the operability of spraying glaze Effect

Pending Publication Date: 2018-10-02
JINZHOU METAL CERAMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no color glaze used for marking LOGO on metallized ceramic tube glaze in China. High temperature glaze has a high melting point and cannot be flattened on the glaze surface. Low temperature color glaze contains lead, and the glaze layer turns black in reducing atmosphere and cannot develop color.
The thermal expansion coefficient of the lead-free glaze is quite different from that of 95 alumina porcelain and high-temperature glaze, and it is easy to fall off during cooling or the bonding strength is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of method that the present invention is used for marking LOGO on the glaze of metallized ceramic tube comprises the following steps:

[0023] 1. Prepare colored glaze paste according to LOGO color

[0024] 1.1. Select the following raw materials and mix them into two colors of glaze powder:

[0025] a. Lead-free low melting point glass powder 30kg, cobalt blue inorganic pigment 40kg, silicon powder 10kg, clay 5kg, wollastonite powder 5kg, borax 10kg;

[0026] b. 30kg of lead-free low-melting glass powder, 40kg of chromium-based green inorganic pigments, 10kg of silica fume, 5kg of clay, 5kg of wollastonite powder, and 10kg of borax;

[0027] By selecting two different colors of inorganic pigments to obtain two colors of glaze powder to meet the two color requirements of LOGO;

[0028] 1.2. Add the mixed glaze powders of two colors into the ball mill tank of the planetary ball mill, and add liquid alcohol to form a glaze slurry, so that the solid-liquid ratio is...

Embodiment 2

[0035] A kind of method that the present invention is used for marking LOGO on the glaze of metallized ceramic tube comprises the following steps:

[0036] 1. Prepare colored glaze paste according to LOGO color

[0037] 1.1. Select the following raw materials and mix them into two colors of glaze powder:

[0038] a. Lead-free low-melting glass powder 75kg, cobalt blue inorganic pigment 10kg, silicon powder 8kg, clay 1kg, wollastonite powder 4kg, borax 2kg;

[0039] b. Lead-free low-melting glass powder 75kg, chrome green inorganic pigment 10kg, silicon powder 8kg, clay 1kg, wollastonite powder 4kg, borax 2kg;

[0040] By selecting two different colors of inorganic pigments to obtain two colors of glaze powder to meet the two color requirements of LOGO;

[0041] 1.2. Add the mixed glaze powders of the two colors into the ball mill tank of the planetary ball mill, and add liquid alcohol to form a glaze slurry, so that the solid-liquid ratio is 2:1; start the planetary ball mil...

Embodiment 3

[0048] A method for marking LOGO on the glaze of metallized ceramic tubes according to the present invention comprises the following steps:

[0049] 1. Prepare colored glaze paste according to LOGO color

[0050] 1.1. Select the following raw materials and mix them into two colors of glaze powder:

[0051] a. Lead-free low-melting glass powder 50kg, cobalt blue inorganic pigment 25kg, silicon powder 15kg, clay 3kg, wollastonite powder 5kg, borax 1kg;

[0052] b. Lead-free low-melting glass powder 50kg, chrome green inorganic pigment 25kg, silicon powder 15kg, clay 3kg, wollastonite powder 5kg, borax 1kg;

[0053] By selecting two different colors of inorganic pigments to obtain two colors of glaze powder to meet the two color requirements of LOGO;

[0054] 1.2. Add the mixed glaze powders of two colors into the ball mill tank of the planetary ball mill, and add liquid alcohol to form a glaze slurry, so that the solid-liquid ratio is 1:1; start the planetary ball mill, ball mil...

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PUM

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Abstract

The invention discloses a method for glazing a LOGO on a metallized ceramic tube. The method comprises the following steps: preparing a colored glaze slurry according to the color of the LOGO; use LOGO to make hollowing an aluminum plate according to a same-color pattern of the LOGO to obtain a LOGO baffle; putting the nickel-plated or nickel-printed metallized ceramic tube into a drying oven, preserving heat at 120-150 DEG C for 10-30 minutes, and then taking out; protecting the metallized ceramic tube by using the LOGO baffle, and adding the colored glaze slurry into a glaze spraying pressure tank for spraying glaze according to a color requirement of the LOGO; then, according to the color of the LOGO, replacing with another colored glaze slurry and a corresponding LOGO baffle for spraying until the complete LOGO is formed; putting the glazed metallized ceramic tube into a secondary burning hydrogen furnace, and sintering at 800-950 DEG C to complete glazing of the LOGO on the metallized ceramic tube. By the method, mixed-color glazing can be achieved, a requirement of formation of the LOGO through various colors can be met, a nickel layer and the LOGO on the surface of the ceramic tube can be sintered at the same time in one process, the logo is clear in pattern, stable in color and luster and flat in glaze surface, and the grade of a product can be improved.

Description

technical field [0001] The invention relates to a production process, in particular to a method for marking LOGO on the glaze of a metallized ceramic tube. Background technique [0002] Ceramic and metal sealing technology is widely used in the manufacture of vacuum electronic devices such as electron tubes and vacuum switch tubes. In the electric vacuum industry, the performance of the metallized porcelain tube is very critical to the quality of the product, so the added value is high and the competition in the industry is very fierce. Leading enterprises in the electric vacuum industry are deeply troubled by accidents and quality disputes caused by counterfeit and shoddy products, and are constantly looking for means and methods to prevent the impact of counterfeit products. [0003] For this reason, some high-end customers require LOGO marks on metallized ceramic tubes. Through the logo, users can experience the confidence of the production company in the product, so th...

Claims

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Application Information

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IPC IPC(8): C03C8/14C04B41/52
CPCC03C8/14C04B41/52C04B41/5144C04B41/5022C04B41/0072
Inventor 邱致忠毕军
Owner JINZHOU METAL CERAMICS