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Magnetron ceramic part forming process and printing equipment

A molding process and printing equipment technology, applied in printing, printing post-processing, printing devices, etc., can solve the problems of increased production cost, low sealing strength, inconvenient adjustment of ceramic parts blocking, etc., to achieve convenient adjustment and convenience The effect of manipulation

Active Publication Date: 2022-03-25
CHANGSHU CITY YINYANG CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of ceramic parts needs to be metallized. The traditional metallization method of ceramics is: first add water, paraffin or polyvinyl alcohol to the alumina powder and sintering aid, adjust it into a slurry, and then granulate it. The powder is formed by dry pressing. The ceramic green body is sintered at 1600-1650°C to form ceramics. After the ceramics are cleaned and dried, the metallization paste is screen-printed, and the metallization layer is protected by hydrogen at 1400-1500°C. Atmosphere sintering, after metallization and sintering, nickel plating is carried out. The above-mentioned process requires two high-temperature sinterings, which wastes a lot of energy and increases production costs; the quality of the finished product is unstable, the sealing strength is low, and the sealing gas The tightness is not good, and at the same time, the screen printing is inconvenient to adjust and block the ceramic parts

Method used

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  • Magnetron ceramic part forming process and printing equipment
  • Magnetron ceramic part forming process and printing equipment
  • Magnetron ceramic part forming process and printing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Magnetron ceramic parts molding process, the specific steps are as follows:

[0045] Step 1. Ceramic powder compression molding: the granulated 94% alumina powder is formed into a ceramic green body by dry pressing;

[0046] Step 2, primary sintering: place the formed ceramic green body in an air furnace and sinter at 1100°C;

[0047] Step 3. Cleaning: Send the primary sintered ceramic parts to a cleaning machine for degreasing and cleaning;

[0048] Step 4. Print molybdenum-manganese paste: Send the cleaned ceramic parts to the screen printing machine for printing molybdenum-manganese paste;

[0049] Step 5. One-time drying: Send the ceramic parts printed with molybdenum-manganese paste to a drying box for drying treatment. The drying temperature is 80°C and the drying time is 17 minutes;

[0050] Step 6. One-time burning of hydrogen: send the dried ceramic parts to a hydrogen infiltration furnace for infiltration treatment. The temperature of hydrogen in the one-time ...

Embodiment 2

[0056] Embodiment 2 is a further improvement to Embodiment 1, the molding process of the magnetron ceramic part, and the specific steps are as follows:

[0057] Step 1. Ceramic powder compression molding: the granulated 94% alumina powder is formed into a ceramic green body by dry pressing;

[0058] Step 2, primary sintering: place the formed ceramic green body in an air furnace and sinter at 1100°C;

[0059] Step 3. Cleaning: Send the primary sintered ceramic parts to a cleaning machine for degreasing and cleaning;

[0060] Step 4. Print molybdenum-manganese paste: Send the cleaned ceramic parts to the screen printing machine for printing molybdenum-manganese paste;

[0061] Step 5. One-time drying: Send the ceramic parts printed with molybdenum-manganese paste to a drying box for drying treatment. The drying temperature is 120°C and the drying time is 15 minutes;

[0062] Step 6. One-time burning of hydrogen: send the dried ceramic parts to a hydrogen infiltration furnace ...

Embodiment 3

[0068] Embodiment 3 is a further improvement to Embodiment 1, the molding process of the magnetron ceramic part, and the specific steps are as follows:

[0069] Step 1. Ceramic powder compression molding: the granulated 94% alumina powder is formed into a ceramic green body by dry pressing;

[0070] Step 2, primary sintering: place the formed ceramic green body in an air furnace and sinter at 1100°C;

[0071] Step 3. Cleaning: Send the primary sintered ceramic parts to a cleaning machine for degreasing and cleaning;

[0072] Step 4. Print molybdenum-manganese paste: Send the cleaned ceramic parts to the screen printing machine for printing molybdenum-manganese paste;

[0073] Step 5. One-time drying: Send the ceramic parts printed with molybdenum-manganese paste to a drying box for drying treatment. The drying temperature is 80°C and the drying time is 17 minutes;

[0074] Step 6. One-time burning of hydrogen: send the dried ceramic parts to a hydrogen infiltration furnace f...

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Abstract

The invention discloses a magnetron ceramic piece forming process and printing equipment, and relates to the technical field of ceramic devices.The magnetron ceramic piece forming process specifically comprises the following steps that firstly, ceramic powder is pressed and formed, specifically, 94% aluminum oxide powder obtained after granulation is formed into a ceramic green body in a dry pressing mode; step 2, primary sintering: placing the molded ceramic green body in an air furnace, and sintering at 1100 DEG C; 3, cleaning, wherein the ceramic part obtained after primary sintering is conveyed to a cleaning machine to be subjected to oil removal cleaning treatment; 4, printing molybdenum-manganese paste: feeding the cleaned ceramic piece into a screen printing machine for printing the molybdenum-manganese paste; by means of the mode, the finished product is stable in quality, high in sealing strength, good in sealing airtightness and low in energy consumption, and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of ceramic devices, in particular to a molding process and printing equipment for magnetron ceramic parts. Background technique [0002] A magnetron is an electric vacuum device used to generate microwave energy. It is essentially a diode placed in a constant magnetic field; the important parts of the magnetron are ceramics. [0003] The production of ceramic parts needs to be metallized. The traditional metallization method of ceramics is: first add water, paraffin or polyvinyl alcohol to the alumina powder and sintering aid, adjust it into a slurry, and then granulate it. The powder is formed by dry pressing. The ceramic green body is sintered at 1600-1650°C to form ceramics. After the ceramics are cleaned and dried, the metallization paste is screen-printed, and the metallization layer is protected by hydrogen at 1400-1500°C. Atmosphere sintering, after metallization and sintering, nickel plating is car...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622C04B41/90B41M1/12B41M1/40B41M7/00
CPCC04B35/10C04B35/622C04B41/009C04B41/52C04B41/90B41M1/12B41M1/40B41M7/009C04B2235/602C04B2235/656C04B2235/6583C04B2235/77C04B2235/9661C04B41/5138C04B41/4535C04B41/0072C04B41/5144
Inventor 高永泉
Owner CHANGSHU CITY YINYANG CERAMIC CO LTD