CN114227055A - Corrosion-free titanium cup brazing material and preparation method thereof - Google Patents

Corrosion-free titanium cup brazing material and preparation method thereof Download PDF

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Publication number
CN114227055A
CN114227055A CN202111572506.6A CN202111572506A CN114227055A CN 114227055 A CN114227055 A CN 114227055A CN 202111572506 A CN202111572506 A CN 202111572506A CN 114227055 A CN114227055 A CN 114227055A
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China
Prior art keywords
molten mixture
powder
welding
titanium cup
brazing material
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CN202111572506.6A
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Chinese (zh)
Inventor
崔振东
诸培星
曾照明
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Nanjing Enrui Technology Co ltd
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Nanjing Enrui Technology Co ltd
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Priority to CN202111572506.6A priority Critical patent/CN114227055A/en
Publication of CN114227055A publication Critical patent/CN114227055A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3006Ag as the principal constituent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/02Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
    • B23K35/0222Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in soldering, brazing
    • B23K35/0227Rods, wires
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40Making wire or rods for soldering or welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)

Abstract

The invention relates to the technical field of silver alloy brazing, and particularly discloses a non-corrosive titanium cup brazing material and a preparation method thereof, wherein the materials are distributed according to the weight proportion; mixing powder by a powder mixer to obtain mixed components; putting the mixed components into a vacuum melting furnace to obtain a molten mixture; uniformly annealing the obtained molten mixture in a resistance furnace, and extruding the molten mixture for multiple times under a press by using an extruder to obtain a prefabricated blank; preheating the prefabricated blank to a preset temperature, and extruding the prefabricated blank into filaments under the isothermal condition of the preheated blank; pickling and cleaning the filaments to obtain welding rods; the obtained welding rod was cut into a shape of 3.5mm in length. During welding, the brazing rod does not need to be adhered with a welding flux for use, the brazing rod is directly welded, the welding effect is good, the welding rod is non-corrosive, cleaning is not needed after welding, the labor intensity is reduced, the working efficiency is improved, the reject ratio of the brazing rod to a weldment is greatly reduced, and the environment is protected.

Description

Corrosion-free titanium cup brazing material and preparation method thereof
Technical Field
The invention relates to the technical field of silver alloy brazing, in particular to a non-corrosive titanium cup brazing material and a preparation method thereof.
Background
Silver and silver alloy have excellent physical and chemical properties, good processing, surface treatment and corrosion resistance, and are widely applied in the fields of aerospace, automobiles, mechanical manufacturing, electronics, chemical engineering, light industry and the like. The brazing is an important material connection technology, has the advantages of small thermal stress and small deformation of a welded workpiece, is suitable for one-time connection forming of multi-slit and multi-part, and is a common process for processing and manufacturing silver and silver alloy parts.
However, the welding rod in the prior art needs to be used with a spot-bonding flux during welding, and the flux is corrosive and causes certain pollution to the environment.
Disclosure of Invention
The invention aims to provide a non-corrosive titanium cup brazing material and a preparation method thereof, and aims to solve the technical problems that a welding rod in the prior art needs to be used by point-bonding a flux during welding, and the flux is corrosive and causes certain pollution to the environment.
In order to achieve the purpose, the non-corrosive titanium cup brazing material adopted by the invention comprises the following components:
60-80 parts of silver powder;
10-30 parts of copper powder;
5-15 parts of tin powder.
The invention also provides a preparation method of the corrosion-free titanium cup brazing material, which comprises the following steps:
distributing the materials according to the weight proportion;
mixing powder by a powder mixer to obtain mixed components;
putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
uniformly annealing the obtained molten mixture in a resistance furnace, and extruding the molten mixture for multiple times under a press by using an extruder to obtain a prefabricated blank;
preheating the prefabricated blank to a preset temperature, and extruding the prefabricated blank into filaments under the isothermal condition of the preheated blank;
cleaning the filaments by acid washing to obtain welding rods;
cutting the obtained welding rod into a shape with the length of 3.5 mm.
Wherein the powder mixing time of the powder mixer is 10-20 minutes.
Wherein, the step of placing the mixed components into a vacuum melting furnace to obtain a molten mixture comprises the following steps:
the temperature in the smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes.
Wherein the step of uniformly annealing the molten mixture in a resistance furnace comprises:
the molten mixture was uniformly annealed in a 300-450 ℃ resistance furnace.
Wherein the step of uniformly annealing the molten mixture in a resistance furnace comprises:
the time for uniform annealing in the resistance furnace is 10-20 min.
Wherein the filaments have a diameter of 3 mm.
The invention relates to a non-corrosive titanium cup brazing solder and a preparation method thereof, comprising the following steps: distributing the materials according to the weight proportion; mixing powder by a powder mixer to obtain mixed components; putting the mixed components into a vacuum melting furnace to obtain a molten mixture; uniformly annealing the obtained molten mixture in a resistance furnace, and extruding the molten mixture for multiple times under a press by using an extruder to obtain a prefabricated blank; preheating the prefabricated blank to a preset temperature, and extruding the prefabricated blank into filaments under the isothermal condition of the preheated blank; cleaning the filaments by acid washing to obtain welding rods; cutting the obtained welding rod into a shape with the length of 3.5 mm. During welding, the brazing rod does not need to be adhered with a welding flux for use, the brazing rod is directly welded, the welding effect is good, the welding rod is non-corrosive, cleaning is not needed after welding, the labor intensity is reduced, the working efficiency is improved, the reject ratio of the brazing rod to a weldment is greatly reduced, and the environment is protected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of the steps of example 1 of the present invention.
Fig. 2 is a flowchart of the steps of embodiment 2 of the present invention.
Fig. 3 is a flowchart of the steps of embodiment 3 of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The invention provides a corrosion-free titanium cup brazing material, which comprises the following components:
60-80 parts of silver powder;
10-30 parts of copper powder;
5-15 parts of tin powder.
The invention also provides a preparation method of the corrosion-free titanium cup brazing material, which comprises the following steps:
distributing the materials according to the weight proportion;
mixing powder by a powder mixer to obtain mixed components;
putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
uniformly annealing the obtained molten mixture in a resistance furnace, and extruding the molten mixture for multiple times under a press by using an extruder to obtain a prefabricated blank;
preheating the prefabricated blank to a preset temperature, and extruding the prefabricated blank into filaments under the isothermal condition of the preheated blank;
cleaning the filaments by acid washing to obtain welding rods;
cutting the obtained welding rod into a shape with the length of 3.5 mm.
The powder mixing time of the powder mixer is 10-20 minutes.
The steps of putting the mixed components into a vacuum melting furnace to obtain a molten mixture are as follows:
the temperature in the smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes.
The step of uniformly annealing the molten mixture in a resistance furnace comprises the following steps:
the molten mixture was uniformly annealed in a 300-450 ℃ resistance furnace.
The step of uniformly annealing the molten mixture in a resistance furnace comprises the following steps:
the time for uniform annealing in the resistance furnace is 10-20 min.
The filaments had a diameter of 3 mm.
After the step of acid washing the filaments clean:
the filaments need to be aligned.
The step of obtaining the prefabricated blank after extruding for multiple times under a press comprises the following steps:
pressing for 5-6 times under 500N press to obtain pre-made embryo.
The preset temperature is 400-500 ℃.
Referring to fig. 1, in example 1, a non-corrosive titanium cup brazing filler metal comprises the following components:
80 parts of silver powder;
30 parts of copper powder;
15 parts of tin powder;
the components are calculated by weight portion.
The invention discloses a preparation method of a corrosion-free brazing titanium cup solder, which comprises the following steps:
s1: the materials are distributed according to the weight proportion, wherein 80 parts of silver powder, 30 parts of copper powder and 15 parts of tin powder are distributed;
s2: mixing powder for 10-20min by using a powder mixer, and uniformly mixing to obtain a mixed component;
s3: putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
s4: uniformly annealing the obtained molten mixture in a resistance furnace at the temperature of 300-450 ℃, and extruding for 5-6 times by using an extruder under a 500N press to obtain a prefabricated blank;
s5: preheating the prefabricated blank to 400-500 ℃, and extruding the prefabricated blank into filaments under the isothermal condition with the preheated blank;
s6: pickling and cleaning the filaments, straightening, and then preparing a welding rod;
s7: cutting the prepared welding rod into a shape with the length of 3.5 mm;
wherein the temperature in the vacuum smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes;
uniformly annealing the molten mixture in a resistance furnace at the temperature of 300-450 ℃ for 10-20 minutes;
the filaments had a diameter of 3 mm.
Referring to fig. 2, embodiment 2, a non-corrosive titanium cup brazing filler metal comprises the following components:
75 parts of silver powder;
15 parts of copper powder;
10 parts of tin powder;
the components are calculated by weight portion.
The invention discloses a preparation method of a corrosion-free brazing titanium cup solder, which comprises the following steps:
s1: distributing 75 parts of silver powder, 15 parts of copper powder and 10 parts of tin powder according to the weight proportion;
s2: mixing powder for 10-20min by using a powder mixer, and uniformly mixing to obtain a mixed component;
s3: putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
s4: uniformly annealing the obtained molten mixture in a resistance furnace at the temperature of 300-450 ℃, and extruding for 5-6 times by using an extruder under a 500N press to obtain a prefabricated blank;
s5: preheating the prefabricated blank to 400-500 ℃, and extruding the prefabricated blank into filaments under the isothermal condition with the preheated blank;
s6: pickling and cleaning the filaments, straightening, and then preparing a welding rod;
s7: cutting the prepared welding rod into a shape with the length of 3.5 mm;
wherein the temperature in the vacuum smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes;
uniformly annealing the molten mixture in a resistance furnace at the temperature of 300-450 ℃ for 10-20 minutes;
the filaments had a diameter of 3 mm.
Referring to fig. 3, in example 3, a non-corrosive titanium cup brazing filler metal comprises the following components:
60 parts of silver powder;
10 parts of copper powder;
5 parts of tin powder;
the components are calculated by weight portion.
The invention discloses a preparation method of a corrosion-free brazing titanium cup solder, which comprises the following steps:
s1: the materials are distributed according to the weight proportion, 60 parts of silver powder, 10 parts of copper powder and 5 parts of tin powder;
s2: mixing powder for 10-20min by using a powder mixer, and uniformly mixing to obtain a mixed component;
s3: putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
s4: uniformly annealing the obtained molten mixture in a resistance furnace at the temperature of 300-450 ℃, and extruding for 5-6 times by using an extruder under a 500N press to obtain a prefabricated blank;
s5: preheating the prefabricated blank to 400-500 ℃, and extruding the prefabricated blank into filaments under the isothermal condition with the preheated blank;
s6: pickling and cleaning the filaments, straightening, and then preparing a welding rod;
s7: cutting the prepared welding rod into a shape with the length of 3.5 mm;
wherein the temperature in the vacuum smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes;
uniformly annealing the molten mixture in a resistance furnace at the temperature of 300-450 ℃ for 10-20 minutes;
the filaments had a diameter of 3 mm.
The welding material is made by a brand new formula, is a welding rod made of silver or silver-based solid deep body, has excellent technological properties, low melting point, good wettability and capability of filling gaps, has high strength, good plasticity and excellent conductivity and corrosion resistance, and can be used for brazing all ferrous and nonferrous metals except aluminum, magnesium and other low-melting-point metals. During welding, the brazing rod does not need to be adhered with a welding flux for use, the brazing rod is directly welded, the welding effect is good, the welding rod is non-corrosive, cleaning is not needed after welding, the labor intensity is reduced, the working efficiency is improved, the reject ratio of the brazing rod to a weldment is greatly reduced, and the environment is protected.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. The non-corrosive titanium cup brazing material is characterized by comprising the following components:
60-80 parts of silver powder;
10-30 parts of copper powder;
5-15 parts of tin powder.
2. A method for preparing the non-corrosive titanium cup brazing material as recited in claim 1, comprising the steps of:
distributing the materials according to the weight proportion;
mixing powder by a powder mixer to obtain mixed components;
putting the mixed components into a vacuum melting furnace to obtain a molten mixture;
uniformly annealing the obtained molten mixture in a resistance furnace, and extruding the molten mixture for multiple times under a press by using an extruder to obtain a prefabricated blank;
preheating the prefabricated blank to a preset temperature, and extruding the prefabricated blank into filaments under the isothermal condition of the preheated blank;
cleaning the filaments by acid washing to obtain welding rods;
cutting the obtained welding rod into a shape with the length of 3.5 mm.
3. The method for preparing the non-corrosive titanium cup brazing material according to claim 2,
the powder mixing time of the powder mixer is 10-20 minutes.
4. The method for preparing a non-corrosive titanium cup brazing material according to claim 3, wherein the step of putting the mixed components into a vacuum melting furnace to obtain a molten mixture comprises:
the temperature in the smelting furnace is controlled at 800-1200 ℃ and smelting is carried out for 20-30 minutes.
5. The method for preparing the non-corrosive titanium cup brazing material according to claim 4, wherein the step of uniformly annealing the molten mixture in a resistance furnace comprises the following steps:
the molten mixture was uniformly annealed in a 300-450 ℃ resistance furnace.
6. The method for preparing the non-corrosive titanium cup brazing material according to claim 5, wherein the step of uniformly annealing the molten mixture in a resistance furnace comprises the following steps:
the time for uniform annealing in the resistance furnace is 10-20 min.
7. The method for preparing the non-corrosive titanium cup brazing solder according to claim 6,
the filaments had a diameter of 3 mm.
CN202111572506.6A 2021-12-21 2021-12-21 Corrosion-free titanium cup brazing material and preparation method thereof Pending CN114227055A (en)

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Application Number Priority Date Filing Date Title
CN202111572506.6A CN114227055A (en) 2021-12-21 2021-12-21 Corrosion-free titanium cup brazing material and preparation method thereof

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585493A (en) * 1943-12-29 1947-02-07 British Thomson Houston Co Ltd Improvements in and relating to brazing alloys and methods of brazing
CN106507723B (en) * 2005-05-18 2010-12-15 西北有色金属研究院 A kind of titanium alloy low temperature brazing material, the preparation of solder and its using method
CN103358048A (en) * 2013-07-25 2013-10-23 杭州华光焊接新材料股份有限公司 Silver, copper and phosphorus system vacuum brazing filler
CN103480988A (en) * 2013-09-26 2014-01-01 郑州机械研究所 High tin and silver base welding rod and preparation method thereof
CN103567657A (en) * 2012-07-26 2014-02-12 北京有色金属与稀土应用研究所 Silver-copper-tin alloy, silver-copper-tin alloy brazing wire and preparation method for same
CN104668812A (en) * 2015-03-20 2015-06-03 郑州机械研究所 Process for preparing ultra-thin brazing fillers by chemical plating and electric plating
CN106238957A (en) * 2016-08-31 2016-12-21 邓柳平 A kind of corrosion-free aluminium soldering bar and preparation method thereof
CN106271202A (en) * 2016-08-30 2017-01-04 北京有色金属与稀土应用研究所 A kind of composite brazing material and preparation method thereof
CN107097015A (en) * 2017-06-07 2017-08-29 廊坊邦壮电子材料有限公司 A kind of silver alloy solder and its preparation technology
CN107214437A (en) * 2017-07-31 2017-09-29 安徽华众焊业有限公司 It is a kind of without silver-base solder of the indium without cadmium
CN107695559A (en) * 2017-10-18 2018-02-16 贵研铂业股份有限公司 A kind of silver-based composite soldering foil and preparation method thereof
CN110125570A (en) * 2019-06-18 2019-08-16 东莞理工学院 A kind of tin silver copper silicon high-entropy alloy solder and preparation method thereof
CN110238559A (en) * 2019-06-17 2019-09-17 无锡日月合金材料有限公司 A kind of novel quaternary alloy solder and preparation method thereof

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585493A (en) * 1943-12-29 1947-02-07 British Thomson Houston Co Ltd Improvements in and relating to brazing alloys and methods of brazing
CN106507723B (en) * 2005-05-18 2010-12-15 西北有色金属研究院 A kind of titanium alloy low temperature brazing material, the preparation of solder and its using method
CN103567657A (en) * 2012-07-26 2014-02-12 北京有色金属与稀土应用研究所 Silver-copper-tin alloy, silver-copper-tin alloy brazing wire and preparation method for same
CN103358048A (en) * 2013-07-25 2013-10-23 杭州华光焊接新材料股份有限公司 Silver, copper and phosphorus system vacuum brazing filler
CN103480988A (en) * 2013-09-26 2014-01-01 郑州机械研究所 High tin and silver base welding rod and preparation method thereof
CN104668812A (en) * 2015-03-20 2015-06-03 郑州机械研究所 Process for preparing ultra-thin brazing fillers by chemical plating and electric plating
CN106271202A (en) * 2016-08-30 2017-01-04 北京有色金属与稀土应用研究所 A kind of composite brazing material and preparation method thereof
CN106238957A (en) * 2016-08-31 2016-12-21 邓柳平 A kind of corrosion-free aluminium soldering bar and preparation method thereof
CN107097015A (en) * 2017-06-07 2017-08-29 廊坊邦壮电子材料有限公司 A kind of silver alloy solder and its preparation technology
CN107214437A (en) * 2017-07-31 2017-09-29 安徽华众焊业有限公司 It is a kind of without silver-base solder of the indium without cadmium
CN107695559A (en) * 2017-10-18 2018-02-16 贵研铂业股份有限公司 A kind of silver-based composite soldering foil and preparation method thereof
CN110238559A (en) * 2019-06-17 2019-09-17 无锡日月合金材料有限公司 A kind of novel quaternary alloy solder and preparation method thereof
CN110125570A (en) * 2019-06-18 2019-08-16 东莞理工学院 A kind of tin silver copper silicon high-entropy alloy solder and preparation method thereof

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