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Preparation method of spring-shaped flux cored solder

A brazing material and spring-shaped technology, which is applied in the direction of manufacturing tools, welding equipment, metal processing equipment, etc., can solve the problems of difficult large-scale popularization and application, low efficiency, and non-continuous production, etc., and achieves wide application range, convenient use, and excellent performance Stable and reliable effect

Active Publication Date: 2017-01-04
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN102513726A discloses a method for manufacturing silver-based flux-cored solder, which is to fill liquid flux into tubular solder, but this method cannot be continuously produced, and the efficiency is low, so it is difficult to popularize and apply on a large scale

Method used

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  • Preparation method of spring-shaped flux cored solder
  • Preparation method of spring-shaped flux cored solder
  • Preparation method of spring-shaped flux cored solder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] use figure 1 , 2 The method for producing reed-shaped flux-core solder with the special equipment shown includes the following steps: 1) Combine QJ308 copper flux, diethylene glycol monoethyl ether acetate, and organic binder (the carbon residue after burning is below 10ppm) The flux paste prepared by a certain weight ratio with the toughening agent is placed in the paste flux storage box 9 for use; 2) the wire-shaped BCu58Zn38Mn4 solder with a diameter of 0.8mm is led from the wire feed wheel group 4 to the reed-top knife 2 places; 3) Input the diameters of the solder spring and solder wire on the CNC screen 15 as 2.0mm and 0.7mm respectively (the diameter of the solder spring not explained is the middle diameter of the solder spring by default); 4) Set the core Flux filling flow is 2.8×10 -2 ml / s; 5) Set the temperature of the drying system to 110°C and the wind speed to 0.5m / s; 6) Start the equipment, feed wire, make springs, fill the core with flux, and send it to...

Embodiment 2

[0034] use figure 1 , 2 The method for producing reed-shaped flux-cored solder with the special equipment shown includes the following steps: 1) Flux prepared by a certain weight ratio of QJ103 flux, dimethyl carbonate and organic binder (the carbon residue after combustion is below 10ppm) The paste is placed in the paste flux storage box 9 for use; 2) Lead the wire-like solder with a diameter of 0.4mm from the wire feed wheel group 4 to the reed top knife 2; 3) Input the solder on the numerical control screen 15 The diameters of the spring and the solder wire are 3.0mm and 0.4mm respectively (the diameter of the solder spring without explanation is the middle diameter of the solder spring by default); 4) Set the flux filling flow rate of the core to 16.8×10 -2 ml / s; 5) Set the temperature of the drying system to 100°C and the wind speed to 0.6m / s; 6) Start the equipment, feed wire, make springs, fill the core with flux, and send it to the drying device 15 through the conveyo...

Embodiment 3

[0036] use figure 1 , 2 The method for producing reed-shaped flux-cored solder with the special equipment shown includes the following steps: 1) Prepare the solder with QJ308 flux, acetone, toughening agent and organic adhesive (the carbon residue after burning is below 10ppm) according to a certain weight ratio. The paste is placed in the paste flux storage box 9 for use; 2) Lead the wire-like solder with a diameter of 0.5 mm from the wire feed wheel group 4 to the reed knife 2; 3) Input the brazing on the numerical control screen 15 The diameters of the material spring and the solder wire are 2.5mm and 0.5mm respectively (the diameter of the solder spring without explanation is the middle diameter of the solder spring by default); 4) Set the flow rate of the core flux filling to 8.4×10 -2 ml / s; 5) Set the temperature of the drying system to 120°C and the wind speed to 0.6m / s; 6) Start the equipment, feed wire, make springs, fill the core with flux, and send it to the drying...

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Abstract

The invention discloses a spring-shaped flux-cored solder preparing method and a dedicated device adopted in the method. The method comprises the steps of preparing pasty soldering flux; winding a solder wire into a spring-shaped hollow structure; injecting the prepared pasty soldering flux into a spring-shaped hollow solder core, and obtaining a spring-shaped flux-cored solder finished product after drying. The dedicated device comprises a machine frame, a spring making top cutter and a soldering flux injection nozzle, wherein the spring making top cutter and the soldering flux injection nozzle are arranged on the machine frame, the soldering flux injection nozzle is horizontally arranged below the spring making top cutter, a wire feeding wheel set is arranged on the machine frame and located at the right side of the spring making top cutter, a conveying frame is arranged outside the machine frame and located at the position corresponding to the spring making top cutter and the soldering flux injection nozzle, a feed inlet of a conveying belt arranged on the conveying frame is connected with the soldering flux injection nozzle, and a spring-shaped solder collecting wheel is arranged at the position of a discharge outlet of the conveying belt on the conveying frame. According to the spring-shaped flux-cored solder preparing method and the dedicated device adopted in the method, pre-adding of soldering flux is achieved conveniently, quickly, quantitatively and efficiently, the device is simple in structure, automation degree is high, production efficiency is high, and the rate of finished products is high.

Description

technical field [0001] The invention relates to the field of welding materials, in particular to a method for preparing a reed-shaped flux-core solder, and also relates to special equipment for the above-mentioned preparation method. Background technique [0002] When brazing in the traditional brazing process, solid solder is usually used, and when the workpiece is heated, the solder flux is used or the flux is pre-coated on the workpiece before heating. Since the process of pre-coating flux adds a pre-welding operation, it not only increases the process and operation time, but also adds a variable in the brazing process, thereby affecting the consistency of welding and the stability of quality. In addition, this kind of brazing process is complicated, the production efficiency is low, and it is difficult to accurately control the consumption of flux. Therefore, the addition method of solder and flux used separately has always affected production efficiency and weld qualit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/40
CPCB23K35/40
Inventor 龙伟民吕登峰钟素娟马佳沈元勋鲍丽张青科董显王星星
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
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