阅读说明：本技术 一种高温钎料 (High-temperature brazing filler metal ) 是由 张柯 叶国晨 唐跃跃 魏放 蒋保林 许荣玉 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种高温钎料,包括以下重量比组分：铜70-75份、锌10-15份、锰7-8份、铁4-5份、镍10-15份,本发明的高温钎料硬度高、强度大、耐磨性好、耐候性强,可以很好的满足生产需求。(The invention discloses a high-temperature brazing filler metal which comprises the following components in parts by weight: 70-75 parts of copper, 10-15 parts of zinc, 7-8 parts of manganese, 4-5 parts of iron and 10-15 parts of nickel.)

1. The high-temperature brazing filler metal is characterized by comprising the following components in parts by weight: cr 23-25%, Ni 30-32%, W15-18%, Al 7-8%, Mo 4-5%, Ti 1-2%, Si 1-2%, B1-2%, Fe 1-4%, Nb 1-2% and Co 40-50%.

2. A high-temperature brazing filler metal as claimed in claim 1, comprising the following components in parts by weight: comprises the following components in percentage by weight: cr 23%, Ni 30%, W15%, Al 7%, Mo 4%, Ti 1%, Si 1%, B1%, Fe 1%, Nb 1% and Co 40%.

3. A high-temperature brazing filler metal as claimed in claim 1, comprising the following components in parts by weight: comprises the following components in percentage by weight: cr 25%, Ni 32%, W18%, Al 8%, Mo 5%, Ti 2%, Si 2%, B2%, Fe 4%, Nb 2% and Co 50%.

4. A high-temperature brazing filler metal as claimed in claim 1, comprising the following components in parts by weight: comprises the following components in percentage by weight: cr 24%, Ni 31%, W16%, Al 7.5%, Mo4.5%, Ti 1.5%, Si 1.5%, B1.5%, Fe 2%, Nb1.5%, and Co 45%.

Technical Field

The invention relates to the technical field of metal powder, in particular to a high-temperature brazing filler metal.

Background

The engine cooler has the following requirements for the brazing material for processing the parent material due to the particularity of the use environment of the engine cooler: 1. and (4) proper brazing temperature. If the brazing temperature is too high, particles of the base material become large, and the connection strength is lowered. 2. Corrosion resistance to sulfuric and nitric acids. Because the fuel contains a small amount of sulfur, sulfide is generated after combustion, sulfuric acid is formed by combining the sulfide with water vapor, and nitride gas is generated after the fuel is mixed with air and combusted, and nitric acid is formed by combining the water vapor. 3. The connection strength is high, and the welding seam connection strength is not reduced along with the increase of the wide band of the welding seam. 4. The wettability is good.

Most of the existing high-temperature brazing filler metals can not well meet the requirements.

Disclosure of Invention

In order to comprehensively solve the problems, the high-temperature brazing filler metal is provided aiming at the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical means:

the high-temperature brazing filler metal comprises the following components in parts by weight: cr 23-25%, Ni 30-32%, W15-18%, Al 7-8%, Mo 4-5%, Ti 1-2%, Si 1-2%, B1-2%, Fe 1-4%, Nb 1-2% and Co 40-50%.

Further, the paint comprises the following components in percentage by weight: comprises the following components in percentage by weight: cr 23%, Ni 30%, W15%, Al 7%, Mo 4%, Ti 1%, Si 1%, B1%, Fe 1%, Nb 1% and Co 40%.

Further, the paint comprises the following components in percentage by weight: comprises the following components in percentage by weight: cr 25%, Ni 32%, W18%, Al 8%, Mo 5%, Ti 2%, Si 2%, B2%, Fe 4%, Nb 2% and Co 50%.

Further, the paint comprises the following components in percentage by weight: comprises the following components in percentage by weight: cr 24%, Ni 31%, W16%, Al 7.5%, Mo4.5%, Ti 1.5%, Si 1.5%, B1.5%, Fe 2%, Nb1.5%, and Co 45%.

Compared with the prior art, the invention has the following advantages:

the high-temperature brazing filler metal has proper brazing temperature, corrosion resistance to sulfuric acid and nitric acid, high connection strength and good wettability.

Detailed Description

The technical solutions of the present invention will be described clearly and completely by the following embodiments, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.