Method for purifying ceramic-metal structural component

A metal structure and component technology, which is applied in the field of purification of ceramic-metal structure components, can solve problems such as desoldering, component cracking, organic pollution of component processing grease, etc., and achieve the effect of reducing the number of sparks and improving the pressure resistance

Inactive Publication Date: 2011-04-20
INST OF ELECTRONICS CHINESE ACAD OF SCI
View PDF0 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, as the requirements for the structural precision of ceramic-metal parts are getting higher and higher, it is difficult for the general sealing process to meet the requirements, so it is often necessary to adopt the method of secondary finishing
The process of secondary finishing is likely to bring organic pollution such as processing oil to the parts
But the decontamination effect is not ideal
In addition, since ceramic-metal structural components contain ceramics, metallized layers, metal parts, nickel-plated layers, and solder, etc., it is not suitable to use the process of cleaning parts for cleaning, otherwise it may cause problems such as

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for purifying ceramic-metal structural component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Take the purification of an electron gun shell that has undergone secondary refinement for a traveling wave tube as an example.

[0034] (1) Submerge the electron gun shell in a beaker filled with acetone, ultrasonically clean it for 15 minutes at room temperature, remove surface organic pollutants, and rinse it with flowing tap water for 4 minutes after taking it out;

[0035] (2) Submerge the electron gun shell degreased in step 1 in 1% dilute hydrochloric acid solution, ultrasonically clean it for 12 minutes, and control the solution temperature at 40-60°C;

[0036] (3) After pickling, immediately take it out with metal tweezers and place it in a beaker, and rinse it with running clean tap water for 6 minutes;

[0037] (4) After taking it out, immediately put it into a clean beaker filled with deionized water (the deionized water should be completely submerged in the electron gun shell), ultrasonically clean it for 12 minutes, and control the water temperature at roo...

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 method for purifying a ceramic-metal structural component. The method mainly comprises the following steps of: soaking the component in a beaker filled with acetone; washing ultrasonically at room temperature to remove surface organic pollutants; soaking the component from which oil is removed in 0.5 to 5 percent acid solution, washing ultrasonically and controlling the temperature of the solution to be between 40 and 60 DEG C; washing with water after acid washing; washing ultrasonically in deionized water and controlling the water temperature to be below 40 DEG C; putting the component into absolute ethyl alcohol, washing ultrasonically, dehydrating and drying at the temperature of between 55 and 65 DEG C; and burning hydrogen at the temperature of between 650 and 750 DEG C after drying, wherein hydrogen burning temperature is at least about 100 DEG C lower than the pouring point of a solder in the ceramic-metal structural component, heat is preserved for 10 to 30 minutes and the dew point of hydrogen is lower than 25 DEG C. In the method, a ceramic surface in the ceramic-metal structural component is purified, the insulating performance of the ceramic-metal structural component is improved and adverse effect on a metal part is avoided.

Description

technical field [0001] The invention relates to the technical field of vacuum electronics, and more specifically, relates to a method for purifying ceramic-metal structural parts. It is suitable for surface purification treatment of ceramic-metal structural parts in vacuum electronic devices. Background technique [0002] Vacuum electronic devices (traveling wave tubes, klystrons, gyrotrons, etc.) are widely used in navigation and positioning, military surveying and mapping, microwave remote sensing, electronic reconnaissance and countermeasures, data transmission, etc., and are irreplaceable important elements in the field of military and civilian technology. Devices [Reference: Liao Fujiang editor-in-chief, "Vacuum Electronic Technology" (Second Edition) - the heart of informationized weapons and equipment, National Defense Industry Press, Beijing (2008)]. [0003] The main body of vacuum electronic devices is a high-voltage ceramic-metal structure. Ceramics not only play...

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
IPC IPC(8): B08B3/12
Inventor 赵世柯肖东梅俞世吉樊会明
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap