Compound heating soldering method of precise part resistance heat and supersonic vibration

A technology of ultrasonic vibration and composite heating, applied in welding equipment, metal processing equipment, manufacturing tools, etc., can solve the problems of reducing the mechanical properties of joints, poor wetting and spreading effect of brazing joints, etc., and achieve the effect of promoting wetting and spreading.

Inactive Publication Date: 2012-02-08
广州电器科学研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to rapid heating and cooling, the wetting and spreading effect of the brazing joint is poor, and there are a large number of pores in the brazing joint, which reduces the mechanical properties of the joint

Method used

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  • Compound heating soldering method of precise part resistance heat and supersonic vibration
  • Compound heating soldering method of precise part resistance heat and supersonic vibration
  • Compound heating soldering method of precise part resistance heat and supersonic vibration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like Figure 1 to Figure 2 As shown, the resistance heating and ultrasonic vibration composite heating brazing method of precision components includes the following steps:

[0024] (1) Preset a solder sheet 3 on the surface of the workpiece 2 to be welded, the material of the solder sheet 3 is Ag30CuZn, and the thickness of the solder sheet 3 is 3mm;

[0025] (2) Place the workpiece 2 to be welded on the positive and negative electrodes 1a and 1b of resistance heating, arrange the two electrodes side by side, and leave a gap of 0.1 mm between the positive and negative electrodes 1a and 1b;

[0026] (3) clamp the base workpiece 4 to be welded, and adjust the fixture 5 so that the surface to be welded of the base workpiece 4 to be welded is located directly above the solder sheet 3;

[0027] (4) Start the ultrasonic vibrator pressure device, start and adjust the height of the ultrasonic vibrator 6, and press the welded base workpiece 4 so that the welded base workpiece 4...

Embodiment 2

[0037] Change the Ag30CuZn solder sheet in Embodiment 1 to Ag45CuZnCd solder sheet, and the rest are the same as Embodiment 1.

Embodiment 3

[0039] The solder sheet in the first or second embodiment is surfacing welded on the surface to be welded of the parent workpiece to be welded, and the rest remain unchanged.

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Abstract

The invention relates to a compound heating soldering method of precise part resistance heat and supersonic vibration, comprising the following steps: preparing a welded workpiece; mounting and clamping the welded workpiece; implementing soldering; and obtaining a soldering joint. A supersonic oscillator applies pressure on the welded workpiece; under the combined action of resistance heat and high-frequency supersonic oscillator vibration in vertical direction, a brazing filler metal sheet is moltened and spreads a surface to be welded in a wetting mode; supersonic cavitation action removes air holes in the melting brazing filler metal as well as air holes on an interface between the brazing filler metal and the surface to be welded, and the soldering joint is formed. The compound heating soldering of resistance heat and supersonic vibration of the invention can obviously improve the wetting spreading effect of the resistance soldering joint brazing filler metal sheet, greatly reduces soldering joint air holes and improves the mechanical reliability of the soldering joint.

Description

technical field [0001] The invention relates to the brazing manufacturing method of precision components such as connectors, durable switches, high-sensitivity sensors, high-elastic contacts, and high-strength springs in instruments and meters and automotive electrical equipment, specifically refers to the compound heating of resistance heat and ultrasonic vibration of precision components Brazing method. Background technique [0002] In the manufacturing process of instrumentation and electrical equipment related parts in the fields of communication, medical treatment, aviation and automobiles, parts made of special materials or functional materials are often used. These materials are generally prepared by special treatment under specific temperature conditions, so when using these materials to manufacture related parts, the processing temperature and processing time must be strictly controlled. For example, beryllium copper material is a special material obtained after qu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K1/00B23K1/06B23K1/20B23K1/005
Inventor 王玲李明雨计红军杜彬赵新胡嘉琦陆永飞方园王鹏程王宏芹何丽娇邓梅玲
Owner 广州电器科学研究院
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