A material pretreatment method for metal-glass connection
A pretreatment and glass technology, which is applied in the pretreatment of Kovar alloy and high borosilicate glass before welding, and in the field of metal and glass welding, can solve the problems such as difficult control of metal oxide composition and thickness, and affecting the sealing effect. Improve the sealing strength and sealing effect, prevent oxidation and increase the contact area
Inactive Publication Date: 2015-11-11
BEIJING UNIV OF TECH
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the industry, the method of forming metal surface oxides is often used to realize the connection between metal and glass. However, the composition and thickness of metal oxides are difficult to control, which will greatly affect the sealing effect
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
example
[0032] 1. Use CorelDraw to design the texturized points. The maximum width of the designed texturized points is 0.1mm, and the interval is 0.3mm. Design an array of texturized points with a certain size. The specific design method of the textured point is: draw circles with diameters of 0.02mm, 0.04mm, 0.06mm, 0.08mm, and 0.10mm respectively, and fill them respectively, and change the center coordinates of the five drawn solid points to the same a little, and realize the combination. Use the step size and repeat function in CorelDraw to realize the drawing of 50*50 dot array.
[0033] 2. Add absolute ethanol to the beaker, and put the alloy substrate into the beaker. Clean it with an ultrasonic cleaner and dry it with high-pressure air to ensure that there is no dust or other pollutants on the surface of the substrate; clean the glass in the same way.
[0034] 3. Place the alloy substrate from which surface impurities were removed in 2 on the experimental platform, adjust th...
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
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a metal and glass connecting material pretreatment method. A treatment key is the design of a material treatment graph, a mode of nesting real points with different diameters layer upon layer is combined with characteristics of laser automatic-identification to fulfill the aim of gradually enhancing the action of laser from outside to inside, so that a pit with a cambered longitudinal section is machined, and the surface areas of a substrate and glass are enlarged. Foreign matters are required to be removed from the surface of a material before texturing treatment, gas protection is required in a machining process, and polishing and cleaning post-treatment is required after the texturing treatment. According to the method, solder is closely combined with the glass and metal in a texturing way for the solder welding of the glass and the metal, so that the effect of strong-strength and high-sealing welding is achieved.
Description
Technical field: [0001] The invention relates to the field of dissimilar welding, in particular to the welding of metal and glass, and is especially suitable for the pretreatment before welding of Kovar alloy and high borosilicate glass. Background technique: [0002] Vacuum heat collectors in solar energy, relays used in aerospace engineering and other devices are sealed with glass and metal, and the strength and airtightness of the seal will affect the vacuum degree of the device, which will further affect its performance and life. influences. For solar power generation technology, the life of the vacuum heat collector has become a key factor affecting the use of this technology. [0003] Traditional metal-glass seals are mainly used for small-sized electronic devices, and the sealing methods are roughly divided into two categories: diffusion bonding in a vacuum environment and fusion sealing technology using heating means. Diffusion bonding continuously heats and presse...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): C03C27/00C03C15/00
Inventor 刘富荣赵进炎陈继民
Owner BEIJING UNIV OF TECH