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A kind of flux and its preparation method and igniter

A kind of ignition agent and flux technology, which is applied in welding equipment, manufacturing tools, welding media, etc., can solve the problems that affect the reliability of products, the solder paste is easy to dry out and fail, and the welding performance deteriorates, so as to achieve superior comprehensive performance of the product , Improving the efficiency of package connection and good soldering performance

Active Publication Date: 2021-06-04
东莞市输变电工程建设有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, most of the operators manually cover the conductive connection of the two cables with a layer of protective layer, and then manually fix the protective layer on the outside of the two cables, which is inefficient; or use solder paste The solder paste is easy to dry out and fail, the solvent in the flux is easy to volatilize, the storage life is short, and the soldering performance will deteriorate after storage for a period of time, which will affect the reliability of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this embodiment, a solder includes the following components in parts by weight: 180 parts of lead, 90 parts of tin, 4 parts of silver, 2 parts of nickel, 2 parts of copper, 0.1 part of indium, 0.01 part of scandium, 0.3 part of germanium, 0.2 part of lanthanum 1 part, 0.05 part of chromium, and 1 part of zinc.

[0032] Further, the preparation method of the flux includes the following steps:

[0033] (1) Put lead into the smelting furnace, fill it with argon until the pressure in the furnace is 0.25MPa, heat to 550°C, and smelt; then add tin-copper master alloy, tin-chromium master alloy and tin, silver, nickel, Indium, germanium, lanthanum, zinc and scandium mixed;

[0034] (2) After all the components are melted, adjust the alloy solution to 720°C, add a refining agent for refining, stir for 8-15 minutes, use inert gas for purging and refining, and leave the alloy solution to stand after refining;

[0035] (3) cooling the alloy liquid after refining, casting it i...

Embodiment 2

[0046] In this embodiment, a solder includes the following components in parts by weight: 200 parts of lead, 100 parts of tin, 8 parts of silver, 5 parts of nickel, 4 parts of copper, 0.8 parts of indium, 0.02 parts of scandium, 0.9 parts of germanium, lanthanum 0.8 parts, 0.1 parts of chromium, and 4 parts of zinc.

[0047] Further, the preparation method of the flux includes the following steps:

[0048] (1) Put the lead into the smelting furnace, fill it with argon gas to the pressure of 0.35MPa in the furnace, heat to 650°C, and smelt; then add tin-copper master alloy, tin-chromium master alloy and tin, silver, nickel, Indium, germanium, lanthanum, zinc and scandium mixed;

[0049] (2) After all the components are melted, adjust the alloy liquid to 740°C, add a refining agent for refining, stir for 8 minutes, use inert gas to purify and refine, and leave the alloy liquid to stand after refining;

[0050] (3) cooling the alloy liquid after refining, casting it into an ing...

Embodiment 3

[0060] In this embodiment, a soldering flux includes the following components by weight: 190 parts of lead, 95 parts of tin, 6 parts of silver, 4 parts of nickel, 3 parts of copper, 0.5 parts of indium, 0.015 parts of scandium, 0.6 parts of germanium, lanthanum 0.2-0.8 parts, 0.06 parts of chromium, 2 parts of zinc.

[0061] Further, the preparation method of the flux includes the following steps:

[0062] (1) Put lead and lead into the melting furnace, fill the furnace with argon to a pressure of 0.3MPa, heat to 600°C, and smelt; then add tin-copper master alloy, tin-chromium master alloy and tin, silver and nickel in proportion , indium, germanium, lanthanum, zinc and scandium mixed;

[0063] (2) After all the components are melted, adjust the alloy liquid to 730°C, add a refining agent for refining, stir for 12 minutes, use inert gas to purify and refine, and leave the alloy liquid to stand after refining;

[0064] (3) cooling the alloy liquid after refining, casting it i...

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Abstract

The invention relates to the field of welding technology, in particular to a flux, a preparation method thereof and an ignition agent. The soldering flux is composed of the following raw materials in mass percentages: including the following components by weight: 180-200 parts of lead, 90-100 parts of tin, 4-8 parts of silver, 2-5 parts of nickel, 2-4 parts of copper, bismuth 1.5-2 parts, 0.1-0.8 parts of indium, 0.01-0.02 parts of scandium, 0.3-0.9 parts of germanium, 0.2-0.8 parts of lanthanum, 0.05-0.1 parts of chromium, and 1-4 parts of zinc. The preparation method has simple and easy process, and the prepared product has superior comprehensive performance and stable product quality. The flux of the present invention has good corrosion resistance and low melting point, and is burned under the action of the igniter to form solder lead tin liquid, and the solder lead tin liquid covers the conduction connection of two cables after cooling; the packaging of the two cables is improved Connection efficiency, and good welding performance.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a flux, a preparation method thereof and an ignition agent. Background technique [0002] Electricity is one of the indispensable energy sources in our daily life. During the construction of electric equipment, it is often necessary to connect the conductors of two cables together, and then cover the conductive connection of the two cables. Hold to prevent the conductive connection of the two cables from being separated from each other. In the prior art, most of the operators manually cover the conductive connection of the two cables with a layer of protective layer, and then manually fix the protective layer on the outside of the two cables, which is inefficient; or use solder paste The solder paste is easy to dry out and fail, the solvent in the flux is easy to volatilize, the storage life is short, and the soldering performance will deteriorate after a period of storage, whi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/26B23K35/362B23K35/40
CPCB23K35/268B23K35/362B23K35/40
Inventor 谢朝养陈松森杜桂文
Owner 东莞市输变电工程建设有限责任公司