A kind of ti-zr-ni-fe-cu-co-mo-b solder and its preparation method and application

A technology of ti-zr-ni-fe-cu-co-mo-b and solder, which is applied in the field of solder solder, Ti-Zr-Ni-Fe-Cu-Co-Mo-B solder and its preparation, It can solve the problems of large melting temperature range, difficult assembly and high melting temperature, and achieve the effect of reducing melting point, improving banding and low melting point.

Active Publication Date: 2020-09-22
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, BNi2 solder is a powdered solder, which is not easy to assemble, and has a high melting temperature and a large melting temperature range. At the same time, because BNi2 solder contains high silicon, boron and other elements, it contains more brittle phases of intermetallic compounds. or brittle eutectic

Method used

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  • A kind of ti-zr-ni-fe-cu-co-mo-b solder and its preparation method and application
  • A kind of ti-zr-ni-fe-cu-co-mo-b solder and its preparation method and application
  • A kind of ti-zr-ni-fe-cu-co-mo-b solder and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0034] (1) Ingredients: Ti, Zr, Fe, Ni, Cu, Co, Mo metal particles and master alloy Fe-20B (wt.%) are used as raw materials, the purity of each raw material is ≥99.9%, and the content by mass percentage is Ti46.0%, Zr29.5%, Fe1.4%, Ni11.4%, Cu4.1%, Co3.0%, Mo2.0%, Fe-20B (wt.%) 2.6% prepare charge, in the batching Before that, it was necessary to remove the oxide film and impurities on the surface of the raw material metal particles, specifically: polish the surface of the metal particles with 180# SiC sandpaper, then pickle (pickling with dilute hydrochloric acid), rinse and dry with absolute ethanol, and finally dry it in acetone Ultrasonic cleaning in bath agent for 10 minutes and drying;

[0035](2) Melting solder alloy: put the charge prepared in step (1) into the water-cooled copper crucible of the WS-4 non-consumable vacuum electric arc furnace, and vacuum the inside of the furnace cavity before melting to a degree of <1×10- In the state of 3Torr, refill argon to 0.06M...

Embodiment 2

[0040] (1) Ingredients: Ti, Zr, Fe, Ni, Cu, Co, Mo metal particles and master alloy Fe-20B (wt.%) are used as raw materials, the purity of each raw material is ≥99.9%, and the content by mass percentage is Ti42.4%, Zr29.0%, Fe4.6%, Ni13.0%, Cu3.0%, Co2.0%, Mo3.0%, Fe-20B (wt.%) 3.0% prepare charge, in the batching Before that, it is necessary to remove the oxide film and impurities on the surface of the raw metal particles, specifically: polish the surface of the metal particles with 180# SiC sandpaper, then pickle, rinse and dry with absolute ethanol, and finally ultrasonically clean in an acetone bath for 10 minutes. Dry;

[0041] (2) Melting solder alloy: put the charge prepared in step (1) into the water-cooled copper crucible of the WS-4 non-consumable vacuum electric arc furnace, and vacuum the inside of the furnace cavity before melting to a degree of <1×10- In the state of 3Torr, fill it with argon to 0.06MPa. When melting, the furnace cavity is built with high-purity...

Embodiment 3

[0045] (1) Ingredients: Ti, Zr, Fe, Ni, Cu, Co, Mo metal particles and master alloy Fe-20B (wt.%) are used as raw materials, the purity of each raw material is ≥99.9%, and the content by mass percentage is Ti46.7%, Zr32.0%, Fe2.8%, Ni7.5%, Cu5.0%, Co4.0%, Mo1.0%, Fe-20B (wt.%) 1.0% prepare charge, in the batching Before that, it is necessary to remove the oxide film and impurities on the surface of the raw metal particles, specifically: polish the surface of the metal particles with 180# SiC sandpaper, then pickle, rinse and dry with absolute ethanol, and finally ultrasonically clean in an acetone bath for 10 minutes. Dry;

[0046] (2) Melting solder alloy: put the charge prepared in step (1) into the water-cooled copper crucible of the WS-4 non-consumable vacuum electric arc furnace, and vacuum the inside of the furnace cavity before melting to a degree of <1×10- In the state of 3Torr, refill argon to 0.06MPa, and repeat the operation 3 times. During the melting, high-purity...

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Abstract

The invention belongs to the technical field of welding materials, and discloses Ti-Zr-Ni-Fe-Cu-Co-Mo-B brazing filler metal and a preparing method and application thereof. The brazing filler metal comprises the following components including, by mass, 29%-32% of Zr, 3.4%-7% of Fe, 7.5%-13% of Ni, 3%-5% of Cu, 2%-4% of Co, 1%-3% of Mo, 0.2%-0.6% of B and the balance Ti. According to the brazing filler metal, the preparing method and application, burdening is carried out according to the contents of the above components; and an electric arc melting method is adopted for preparing a brazing filler metal alloy ingot, the alloy ingot is smashed into small particles to be heated and melted, and a rapid set technology is adopted for preparing the Ti-Zr-Ni-Fe-Cu-Co-Mo-B foil brazing filler metal.The brazing filler metal has the advantages that the belt forming performance is high, the cost is low, and the braze TiAl and Ni based high temperature alloy connector connecting strength is high.

Description

technical field [0001] The invention belongs to the technical field of welding materials, and relates to soldering filler metal, in particular to a Ti-Zr-Ni-Fe-Cu-Co-Mo-B solder filler metal and its preparation method and application. Application of the brazing material in brazing connection of TiAl alloy and Ni-based alloy. Background technique [0002] TiAl alloy is a material with relatively low density, high specific stiffness, specific strength, excellent oxidation resistance, and good high-temperature mechanical properties. It is considered to be an ideal new lightweight high-temperature structural material with wide application prospects. . The density of γ-TiAl-based alloy is lower than half of that of Ni-based superalloy, and its specific stiffness and specific strength exceed that of Ni-based superalloy. Therefore, TiAl-based alloys are ideal candidates to replace Ni-based superalloys. However, in terms of machinability and economy, it is unrealistic to use a si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K35/32B23K35/40
CPCB23K35/325B23K35/40
Inventor 李小强娄立李志锋屈盛官李京懋
Owner SOUTH CHINA UNIV OF TECH
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