Jig for brazing

A jig and brazing technology, used in manufacturing tools, welding equipment, welding/welding/cutting items, etc., can solve problems such as poor wettability, difficulty in forming connections between ceramic and metal materials, and large thermal stress on joints, to avoid The effect of pollution

Active Publication Date: 2019-04-12
SHENZHEN SIBIONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor wettability of ceramics, it is difficult to form a good connection between ceramics and metal materials.
Moreover, the thermal expansion coefficients of ceramics and metals differ greatly, which will lead to excessive thermal stress in the joints and affect the strength and airtightness of the joints.
However, in the traditional brazing of ceramics and metal materials, there are often problems such as uneven heating of the parts to be welded and easy contamination by impurities.

Method used

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Embodiment Construction

[0021] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the drawings. In the following description, the same reference numerals are given to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of dimensions between components, the shape of components, and the like may be different from the actual ones.

[0022] figure 1 A schematic flowchart of a ceramic-metal brazing method according to an embodiment of the present invention is shown.

[0023] The brazing method of ceramics and metal involved in the present embodiment includes: preparing ceramics 31 to be welded and metal 33 to be welded, and carrying out surface treatment on ceramics 31 to be welded, so that the surface of ceramics to be welded 31 is formed into a smooth surface (step S10 ); metallization is carried out on the surface of the ceramics to be welded 31 to form an intermediate ...

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Abstract

The invention provides a jig for brazing. The jig for brazing is characterized by comprising an object table and a pressing block; the object table is provided with a groove used for placing a to-be-welded part, and a communicating hole communicating with the bottom of the groove; the pressing block is matched with the groove of the object table and used for covering the to-be-welded part; and thepressing block is provided with a vent hole. The jig for brazing can reduce pollution of the to-be-welded part and improve the heating uniformity of the to-be-welded part.

Description

technical field [0001] The present disclosure particularly relates to a jig for brazing. Background technique [0002] As a high-temperature structural material, ceramics are widely used in various fields because of their good biocompatibility, heat resistance, corrosion resistance and electrical insulation properties. However, in practical applications, in order to solve the problem of poor processability caused by the excessive hardness of ceramics, it is necessary to connect ceramics and metals by certain methods to form metal-ceramic composite structural parts. [0003] Currently, the most common method for joining ceramic and metallic materials is brazing. Brazing has the advantages of small heat-affected zone and reliable joints, and is very suitable for the connection between dissimilar materials. However, due to the poor wettability of ceramics, it is difficult to form a good connection between ceramics and metal materials. Moreover, the thermal expansion coeffici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K3/08
CPCB23K3/087B23K1/008B23K1/20B23K2103/18
Inventor 王蕾周永东李清卢路旺
Owner SHENZHEN SIBIONICS CO LTD
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