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Soldering method of radar electronic product connector

A technology of electronic products and brazing methods, which is applied in the field of brazing of radar electronic product connectors, can solve problems such as difficult cleaning, low brazing efficiency, and many connector hole residues, and achieves improved production efficiency, simple operation, Improves hard-to-clean effects

Inactive Publication Date: 2019-08-13
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the invention lies in the phenomenon that the brazing efficiency of the connector of radar electronic products is low, and there are many residues in the connector hole after brazing and it is difficult to clean

Method used

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  • Soldering method of radar electronic product connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A brazing method for a radar electronic product connector comprises the following steps:

[0032] (1) Component cleaning: scrub and clean the component shell and connector of radar electronic products in alcohol for 5 minutes, and air dry naturally;

[0033] (2) Assembly: such as figure 1 As shown, put the pre-coated welding ring 2 into the surface of the connector 1 to be welded, put the connector 1 into the connector fitting hole 31 of the component shell 3, and assemble it into a connector module to be welded; The weight of the flux pre-coated on the surface of the ring accounts for 1.5% of the weight of the solder ring; wherein the flux consists of 8wt.% hydrogenated rosin, 0.1wt.% acrylic resin, 3wt.% oxalic acid, rosin glyceride, polyglycerol castor The mixture of hempyl alcohol ester and fatty acid diethanolamide accounts for 2.5wt.% (the mass ratio of the three is 1:1:1), and 86.4wt.% alcohol is mixed; The weight accounts for 1.5% to 3.5% of the weight of the ...

Embodiment 2

[0036] A brazing method for a radar electronic product connector comprises the following steps:

[0037] (1) Component cleaning: scrub and clean the component housing and connectors of radar electronic products in alcohol for 8 minutes, and dry them with an air gun;

[0038] (2) Assembly: such as figure 1 As shown, put the pre-coated welding ring 2 into the surface of the connector 1 to be welded, put the connector 1 into the connector fitting hole 31 of the component shell 3, and assemble it into a connector module to be welded; The weight of the flux pre-coated on the surface of the ring accounts for 2% of the weight of the welding ring; wherein the flux consists of 10wt.% maleic acid modified rosin, 0.2wt.% acrylic resin, 5wt.% malic acid, trihydroxystearic acid The mixture of triglyceride, polyglyceryl ricinoleate and bisstearic acid amide accounts for 2wt.% (the mass ratio of trihydroxystearic acid triglyceride, polyglyceryl ricinoleate and bisstearic acid amide is 1: 2...

Embodiment 3

[0041] A brazing method for a radar electronic product connector comprises the following steps:

[0042] (1) Component cleaning: scrub and clean the component housing and connectors of radar electronic products in alcohol for 8 minutes, and dry them with an air gun;

[0043] (2) Assembly: such as figure 1As shown, use tweezers to put the pre-coated welding ring 2 into the surface of the connector 1 to be welded, put the connector 1 into the connector fitting hole 31 of the component shell 3, and assemble it into a connector module to be welded; The weight of the pre-coated flux on the surface of the coating ring accounts for 3.5% of the weight of the solder ring; wherein the flux consists of 12wt.% acrylic modified rosin and hydrogenated rosin mixture, 0.5wt.% acrylic resin, 5wt.% citric acid, The mixture of glyceryl monostearate, polyglycerol ricinoleate and fatty acid diethanolamide accounts for 2wt.% (the mass ratio of glyceryl monostearate, polyglycerol ricinoleate and fa...

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PUM

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Abstract

The invention discloses a soldering method of a radar electronic product connector and relates to the field of soft soldering in the electronic industry. The soldering method comprises the following steps of (1) assembling, specifically, sleeving a pre-coated welding ring with the to-be-welded surface of the connector, mounting the connector into a connector hole of an assembly shell to form a to-be-welded connector module, wherein the surface of the pre-coated welding ring is pre-coated with a soldering flux accounting for 1.5%-3.5% of the weight of the welding ring, and the soldering flux comprises 8-12% of solid rosin; (2) soldering, specifically, arranging the to-be-welded connector module into soldering equipment to be subjected to soldering, arranging a soldering preheating area, heating an assembly to 150-170 DEG C, conducting heat preservation for 2-5 min, conducting reflow soldering in the soldering area with the highest temperature being 195-210 DEG C and finally conducting discharging and cooling to the indoor temperature. The soldering method has the beneficial effects that the quantity of soldering tin and the soldering flux is accurately controlled through the weldingring pre-coated with the soldering flux; the whole process is implemented without manually coating the soldering flux; and the production efficiency is substantially improved.

Description

technical field [0001] The invention relates to the field of soldering in the electronic industry, in particular to a soldering method for a connector of a radar electronic product. Background technique [0002] With the development trend of advanced radar electronic systems moving toward arrayization, the system side has begun to demand tens of thousands of single systems for radar electronic products. In the face of huge demand for components and components, how to improve production efficiency is a problem that must be solved. However, in the brazing production process of the connector of the radar component, due to the limitation of its structural shape, etc., the brazing manufacturing process still stays in the process of manually coating the welding ring or cutting the solder wire into a ring and then assembling and brazing. During the soldering stage, it is difficult to accurately control the amount of solder, and the solder easily overflows the surface, causing the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/00
CPCB23K1/00
Inventor 王禾吴昱昆任榕杨程张加波
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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