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Binder used for preparing clay-like brazing filler

A binder, clay-like technology, applied in the direction of adhesive types, ester copolymer adhesives, manufacturing tools, etc. Wall cleaning is difficult and other problems, to achieve the effect of excellent quality, excellent performance and multiple functions

Inactive Publication Date: 2006-04-12
李昕
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two problems with this binder: ① Rosin is not completely decomposed by heating in a vacuum or gas protection environment, leaving a small amount of residue after welding, which will affect the effect of sintering (or brazing)
② Rosin decomposed volatiles will be adsorbed around the furnace wall during the condensation process, which will bring difficulties to the cleaning of the furnace wall
[0005] In addition, for the brazing of some complex parts, especially when making wear-resistant and corrosion-resistant coatings on the surface of some complex shapes, it is not convenient to use solder paste and sticky solder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mix 5g glycerin and 85g diethylene glycol monobutyl ether in a glass beaker, then sprinkle 10g C10-30 alkyl acrylate cross-linked copolymer Carbopol 1342 powder on the surface of the above solution, when the copolymer powder is wet, then Stir the above mixture slowly until a gel-like binder forms.

[0024] Weigh 900g of nickel-based solder, mix it with the above-mentioned 100g of binder, stir slowly and knead evenly to form clay-like nickel-based solder. The clay-like nickel-based solder is slow-drying, and can be kept for more than one year in a tight container.

Embodiment 2

[0026] Mix 6g of glycerin and 83g of deionized water in a glass beaker, sprinkle 11g of C10-30 alkyl acrylate cross-linked copolymer Carbopol Ultrez 10 powder on the surface of the above solution, and slowly stir the above mixture after the copolymer powder is wet until a gel-like bond is formed.

[0027] Weigh 900g of self-fluxing alloy powder, mix it with the above-mentioned 100g of binder, stir slowly and knead evenly to form clay-like self-fluxing alloy. The clay-like self-fusing metal quick-drying type can be easily applied to various complex-shaped surfaces, which will be very convenient to use in the vacuum sintering process.

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PUM

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Abstract

An adhesive for preparing clay-state solder is prepared from the 10-30 alkylacrylate cross-linked copolymer, glycerin, and solvent chosen from deionized water, diethanediol mono-butylether, diethanediol mono-hexylether, 1,2-propanediol and 2,4-hexanediol. It can be used to generate the artistic pattern on the surface of metal by vacuum soldering.

Description

technical field [0001] The present invention relates to a kind of binder that is used for making brazing filler metal, especially relates to a kind of special binder that makes brazing filler metal with plasticity, can be mixed with nickel-based brazing filler metal powder, cobalt-based brazing filler metal powder, manganese-based brazing filler metal powder, Copper-based solder powder is mixed separately to make clay-like solder, which is used for vacuum brazing, repairing and brazing of complex metal structures; the binder can also be mixed with various self-fluxing alloys for vacuum sintering ( Or gas shielded fusion) process to produce various wear-resistant and corrosion-resistant coatings. Background technique [0002] At present, the shape of solder generally has three forms: flake, wire and powder. Various nickel-based, cobalt-based, manganese-based and copper-based solders used for high-temperature brazing, as well as various self-fluxing alloys used in vacuum sint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08B23K35/36
Inventor 李昕
Owner 李昕
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