Soldering method and application in which the solder can be driven by an electric field

A welding method and electric field technology, which can be used in welding methods and application fields driven by electric fields for solder, can solve problems such as high oxide content, achieve the effect of improving the uniformity of weld seams and reducing welding defects

Active Publication Date: 2021-05-25
河北宇天材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the brazing material is not easy to fill the brazing seam, and the content of oxides in the brazing seam is high (Yan Jiuchun, Yang Chunli, Liu Huijie, Cui Wei. Research status and scientific problems of ultrasonic hybrid welding [J]. Mechanical Engineering Materials. 2015 (01) )

Method used

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  • Soldering method and application in which the solder can be driven by an electric field
  • Soldering method and application in which the solder can be driven by an electric field
  • Soldering method and application in which the solder can be driven by an electric field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A welding method in which solder can be driven by an electric field, comprising the following steps:

[0041] 1) Prepare solder and two base metals to be welded. The two base materials to be welded are pure aluminum (99.6wt% Al content) (from Xuzhou Yuda Aluminum Products Co., Ltd.). The solder has conductive properties, and its It is Ag-Cu (atomic percentage: Ag:50.04Cu:34.28). Clean the surface of the base material to remove grease, stains and oxide film, and then dry it. Under atmospheric conditions, preheat the base metal at 350 °C for 5 min.

[0042] 2) The brazing filler metal and the base metal 5 in step 1) are fixed according to the structure of "base metal / brazing filler metal / base metal", the distance between the base metal and the brazing filler metal is less than 2cm, the present embodiment is 1 centimeter, heating To melt the brazing filler metal, wherein, according to the structure, the base metal is first fixed, and after the base metal is fixed, the po...

Embodiment 2

[0052] A welding method in which solder can be driven by an electric field, comprising the following steps:

[0053] 1) Prepare solder and two base metals to be welded, the two base metals to be welded are ME20M Mg (1.8wt% Mn, 0.3wt% Zn, 0.25wt% Ce, the balance is Mg), and the solder is Sn -9Zn (mass percentage: Sn91wt%, Zn9wt%). Clean the surface of the base material to remove grease, stains and oxide film, and then dry it. Under atmospheric conditions, the base metal was preheated at 350 °C for 4 min.

[0054] 2) Fix the brazing filler metal and base metal in step 1) according to the structure of "base metal / brazing filler metal / base metal", and heat to melt the brazing filler metal, wherein, the base metal is first fixed according to the structure, and the base metal After the material is fixed, the position and gap between the brazing parts are kept unchanged, and the brazing material is evenly put into the brazing seam.

[0055] 3) After the solder is melted, continue ...

Embodiment 3

[0065] A welding method in which solder can be driven by an electric field, comprising the following steps:

[0066] 1) Prepare solder and two base metals to be welded, both of which are 1060 aluminum (mass percentage: Al99.6wt%, Si, Cu, Mg, Zn, Mn, Ti, V, Fe content A total of 0.4wt%,), the solder is Zn-15Al (mass percentage: Al15wt%, Zn 85wt%). Clean the surface of the base material to remove grease, stains and oxide film, and then dry it. Under atmospheric conditions, the base metal was preheated at 340° C. for 5 min.

[0067] 2) Fix the solder and base metal in step 1) according to the structure of "base metal / brazing material / base metal", and heat to melt the solder, wherein the base metal is first fixed according to the structure, and the base metal is fixed After completion, ensure that the position and gap between the brazing parts remain unchanged, and put the brazing material evenly into the brazing seam.

[0068] 3) After the solder is melted, continue the heatin...

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Abstract

The invention discloses a welding method and its application in which solder can be driven by an electric field. The welding method includes the following steps: preheating the base metal at 200-500°C for 3-5 minutes; The structure of the "base metal" is fixed and heated to melt the solder; after the solder is melted, continue to heat, and at the same time add the liquid electrorheological fluid into the solder to obtain a liquid mixed solder; set up the electric field device, the electric field device It includes: a positive electrode plate and a negative electrode plate. The positive electrode plate and the negative electrode plate surround the base material and continuously apply an electric field to the base material. At the same time, the base material rotates, and the positive electrode plate and the negative electrode plate rotate around the two base materials. The welding method of the present invention is helpful for the liquid solder to break the film, wet and expand on the surface of the base metal, promote the interdiffusion and alloying of elements and components between the solder and the base metal, improve the uniformity of the weld seam, and reduce the welding time. defects, resulting in high-strength welded joints.

Description

technical field [0001] The invention belongs to the technical field of welding, and in particular relates to a welding method and application in which solder can be driven by an electric field. Background technique [0002] At present, most of the welding technologies we use are only for relatively flat welds. For complex welds, the methods used include robotic welding, vacuum brazing and ultrasonic-assisted brazing. Among them, robot welding continuously tracks the weld seam during the welding process. First, it needs to accurately collect and obtain information on the dynamic process of welding; second, it needs to simulate the experience of the welder, analyze and extract the mechanism characteristics of the dynamic process of welding, and then establish a relationship between the welding process and The model of quality relationship; the third is to simulate the decision-making and operation of the welder, design the intelligent control strategy of the welding dynamic pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00
CPCB23K1/00
Inventor 周小玉付阳王谦朱琳郎强许昌李昕宋浦丰顾克云索喆陈韵如张兆芃
Owner 河北宇天材料科技有限公司
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