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A coating welding ring and its preparation method

A coating and welding ring technology, used in welding equipment, manufacturing tools, welding media, etc., can solve the problems of poor surface coating adhesion, insufficient surface brazing amount, and surface coating loss, etc., to achieve adhesion and thickness. Good stability, strong skin adhesion, easy to assemble and use

Active Publication Date: 2021-08-06
HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating brazing material currently produced on the market has poor adhesion to the surface coating. During transportation, the surface coating will be lost due to collisions, resulting in insufficient brazing dosage on the surface of the welding ring when customers use it, resulting in a large number of defective products.

Method used

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  • A coating welding ring and its preparation method

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Experimental program
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Effect test

Embodiment 1

[0030] 1) Mix polyurethane, butyl acetate 3, acetone 3, and dimethyl carbonate at a mass ratio of 85%: 3%: 3%: 9%, heat to 80°C and stir to form a binder;

[0031] 2) Soak the solder ring in the binder and take it out after soaking for 5 minutes;

[0032] 3) Pour the brazing material ring and FB105 brazing flux into a low-speed centrifuge, the quality of the brazing flux is one-tenth of the brazing filler metal, and the centrifuge runs at a speed of 500 rpm for 3 minutes;

[0033] 4) Put the semi-finished product (the semi-finished product of the coating welding ring, the same below) into the three-dimensional vibration grinder, add zirconia ball milling beads, the mass of the ball milling beads is half of the mass of the solder, blow in hot air, and after 5 minutes take out.

Embodiment 2

[0035] 1) Synthesize polyurethane and acetone into a binder at a mass ratio of 90%:10% and stir evenly;

[0036] 2) Put the solder ring in the vibrating machine, spray the prepared binder while starting the vibrating machine, and take it out after 5 minutes;

[0037] 3) Pour the solder ring and FB105 flux into a low-speed centrifuge, the mass of the flux is one-tenth of the mass of the solder, and the centrifuge runs at a speed of 500 rpm for 3 minutes;

[0038] 4) Put the semi-finished product into the three-dimensional vibration grinder, add zirconia ball milling beads, the mass of the ball milling beads is half of the mass of the solder ring, blow in hot air, and take it out after 5 minutes.

Embodiment 3

[0040] 1) Polyurethane and dimethyl carbonate are synthesized into a binder at a mass ratio of 85%:15%;

[0041] 2) Soak the solder ring in the binder and take it out after soaking for 5 minutes;

[0042] 3) Pour the solder ring and FB105 flux into a low-speed centrifuge, the mass of the flux is one-fifth of the mass of the solder, and the centrifuge runs at a speed of 500 rpm for 3 minutes;

[0043] 4) Put the semi-finished product into the three-dimensional vibration grinder, add zirconia ball milling beads, the quality of the ball milling beads is equal to that of the solder, blow in hot air, and take it out after 5 minutes.

[0044]

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Abstract

The application relates to a coating welding ring and a preparation method thereof. The coating welding ring includes brazing filler metal and brazing flux. The brazing filler metal is in the shape of a ring, and the brazing flux is bonded to the surface of the brazing filler metal to form a uniform coating layer. . The binder is a mixture of polyurethane and diluent, and the diluent is one or more of butyl acetate, acetone, and dimethyl carbonate, wherein polyurethane accounts for 80-90% of the total mass of the binder, and the diluent Accounting for 10‑20% of the total mass of the binder. The preparation method of the coating welding ring includes the following steps: forming a uniform adhesive layer on the surface of the solder; bonding the solder on the solder coated with the adhesive to form a semi-finished coating welding ring; The semi-finished product is heated, polished and fixed. The structure of the application is simple, the coating has strong adhesion, and after being processed by a three-dimensional vibrating grinder, the appearance is uniform and dense, the thickness is stable, and the coating welding ring is easy to assemble and use.

Description

technical field [0001] The application relates to a coating welding ring with strong coating adhesion and a preparation method thereof. Background technique [0002] Brazing refers to a welding method in which the solder below the melting point of the weldment and the weldment are heated to the melting temperature of the solder at the same time, and then the gaps in the solid workpiece are filled with liquid solder to connect the metals. At present, the medium-temperature solders mainly used in the market include copper-based solders and silver solders. Most silver solders need to be mixed with flux when used. Flux can activate the surface and avoid oxidation during soldering, and better soldering effect can be obtained by using it. [0003] When most phosphorous-containing copper-based solders are used, due to the self-brazing effect of phosphorus element, the welding can be completed without using flux during welding. However, when phosphorus-containing copper-based sold...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/30B23K35/40
CPCB23K35/3006B23K35/40
Inventor 王晓蓉陈斐范仲华唐卫岗蒋金金
Owner HANGZHOU HUAGUANG ADVANCED WELDING MATERIALS CO LTD
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