Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Seamless silver flux-cored wire

A seamless, flux-cored technology, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of low processing efficiency, limited weight of extruded ingot, unsuitable welding wire, etc., and achieve high production efficiency , not easy to leak, improve efficiency

Inactive Publication Date: 2015-07-01
ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for medium and low temperature brazing, the welding wire made by this patent will not be applicable and has certain limitations
At the same time, the weight of a single extruded ingot is limited in this method, and each ingot can only be extruded into one wire billet, which has the potential for welding wire and flux to be cut off
Therefore, the processing efficiency is low, and continuous and efficient production cannot be realized.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The seamless flux-cored silver welding wire of the present invention comprises a seamless silver solder tube and a flux core wrapped in the hollow column cavity of the seamless silver solder tube made of drug powder; the mass percentage of each component of the silver solder tube is as follows : Silver 40.3%, copper 30.2%, zinc 27.5%, tin 1.8%, gallium 0.2%; Finished Chinese medicine powder filling rate is 15.8%; The mass percent of each component of described medicine powder is as follows: Wherein borax 14.6%, borate 69.8%, active agent 9.9%, paste agent 5.7%; the melting temperature of the processed welding wire is 651~702℃,

[0023] The above welding wire can be realized by the following methods:

[0024] Step 1, according to silver 40.3%, copper 30.2%, zinc 27.5%, tin 1.8%, gallium 0.2%, batching, melting, and casting into ingots, the ingots are placed in an annealing furnace for annealing, annealing temperature 540~560 ℃;

[0025] The 2nd step, by the ratio of 14...

Embodiment 2

[0030] The mass percentages of each component of the silver solder tube described in the present embodiment are as follows: silver 44.8%, copper 27.2%, zinc 25.5%, tin 2.2%, indium 0.3%; Finished welding wire Chinese medicine powder filling rate is 16.1%; The mass percentage of each component of the powder is as follows: 15.4% borax, 69.6% borate, 9.8% active agent, 5.2% paste; the melting temperature of the prepared welding wire is 640.5~681 ℃.

Embodiment 3

[0032] The mass percentages of each component of the silver solder tube described in the present embodiment are as follows: silver 54.9%, copper 21.5%, zinc 17.9%, tin 5.2%, indium 0.2%, gallium 0.3%; Finished wire Chinese medicine powder filling rate is 15.5% %; the mass percentages of each component of the powder are as follows: 16.3% of borax, 68.5% of borate, 10.4% of active agent, and 4.8% of paste forming agent; the melting temperature of the prepared welding wire is 610~650°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
Login to View More

Abstract

The invention provides a seamless silver flux-cored wire. The seamless silver flux-cored wire comprises a seamless silver solder tube, and a flux core which is wrapped with a hollow cylindrical cavity of the seamless silver solder tube and prepared from flux powder. The seamless silver flux-cored wire is characterized in that the silver solder tube and a silver solder wire are prepared from the following components in percentage by mass: 21 to 55% of silver, 20 to 37% of copper, 12 to 36% of zinc, 1.2 to 5.6% of tin, and 0.05 to 055 of trace elements; the flux powder is prepared from the following components in percentage by mass: 13.5 to 18.5% of borax, 68.0 to 70.0% of borate, 9.0 to 10.5% of activating agent, and 4.0 to 6.0% of paste forming agent. Compared with the existing product, the seamless silver flux-cored wire has the advantages of being high in stiffness, difficult to leak of flux powder, high in production efficiency, small in cost, easy to be stored, and suitable for medium-temperature soldering.

Description

technical field [0001] The invention relates to a welding material, in particular to a seamless flux-cored silver welding wire. Background technique [0002] Flux-cored welding wire is a new type of welding material. Compared with solid-cored welding wire, it has the advantages of high welding efficiency, flexible composition adjustment, energy saving and material saving, less flux consumption, less pollution, and beautiful weld shape. It is suitable for continuous automatic welding. welding. [0003] Silver solder has a moderate melting point, good welding processability, good strength, toughness, electrical conductivity, thermal conductivity and corrosion resistance. It is the most widely used type of hard solder, especially the green cadmium-free silver solder. The focus of the external brazing industry in recent years. Generally speaking, there is often a layer of oxide film on the surface of the workpiece to be welded before brazing. The existing brazing method is to ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/368B23K35/30
CPCB23K35/0227B23K35/30B23K35/3006B23K35/3606B23K35/368B23K35/406C22C5/08
Inventor 龙伟民钟素娟张雷鲍丽杨继东马力王星星李秀朋李永路全彬
Owner ZHENGZHOU RES INST OF MECHANICAL ENG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com