CN106563893A - Silver brazing solder of cemented carbide and steel and silver brazing method thereof - Google Patents
Silver brazing solder of cemented carbide and steel and silver brazing method thereof Download PDFInfo
- Publication number
- CN106563893A CN106563893A CN201610921009.5A CN201610921009A CN106563893A CN 106563893 A CN106563893 A CN 106563893A CN 201610921009 A CN201610921009 A CN 201610921009A CN 106563893 A CN106563893 A CN 106563893A
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- Prior art keywords
- steel
- silver brazing
- silver
- solder
- hard alloy
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3006—Ag as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
Abstract
The invention discloses silver brazing solder of cemented carbide and steel and a silver brazing method thereof. The silver brazing solder is made of silver, copper, zinc, nickel and tin alloy. The silver, copper, zinc, nickel and tin alloy comprises, by weight, 40.0%-58.0% of Ag, 20.0%-35.0% of Cu, 6.0%-25.0% of Zn, 0.3%-4.0% of Ni and 0.5%-5.0% of Sn. According to the silver brazing method, rolled steel is used as the basis material, the silver, copper, zinc, nickel and tin alloy is used as the solder, and the cemented carbide is subjected to silver brazing in a gas shielded furnace. By the adoption of the silver brazing method, brazing of the cemented carbide and various steel part heterogeneous materials is achieved, weldment bonding strength is high, and therefore steel parts which cannot meet the severe environment requirements such as high-speed loads, particle abrasion, and acid and alkaline corrosion in the fields of sewage treatment, mines, metallurgy, coal-fired power generation, petroleum and the like can be replaced; and meanwhile the problem that solid cemented carbide is expensive in price and thus cannot be widely applied is solved.
Description
Technical field
The invention belongs to hard alloy soldering technical field, and in particular to a kind of hard alloy is welded with the silver brazing of steel
Material and silver brazing method.
Background technology
The fast development of modern industry is to equipment and the performance requirement more and more higher of parts, particularly sewage disposal, ore deposit
The fields such as mountain, metallurgy, coal fired power generation, oil, its environmental quality is high speed top load, abrasion of particles, acid and alkali corrosion etc., parts
Failure set occur in component surface, and the failure of parts be cause work efficiency reduce, product quality decline, production
The major reason that cost increases.Common steel part cannot meet the demand of these harsh working environments, whole hard alloy
Improper extensive application with high costs.
Hard alloy and steel differ greatly in the physical properties such as fusing point, linear expansion coefficient, thermal conductivity, specific heat, so big
The difference of physical property can cause hard alloy and steel that series of problems is produced in welding process:
1), less than the 1/2 of steel, in welding process, hard alloy and steel can be in differences for the linear expansion coefficient of hard alloy
Stress state and larger residual stress is produced in plumb joint, cause layer ftracture or hard alloy cracking etc. phenomenon.
2) hard alloy in welding process, makes with the different melting points of steel up to 800 DEG C when heat input reaches the fusing point of steel
When steel melts, hard alloy does not also melt, and continues to increase heat input, can cause loss, alloying element scaling loss and the evaporation of steel,
Joint performance is set to be deteriorated.
3) when being heated to more than 800 DEG C in atmosphere, hard alloy table and loose oxide skin(coating) can be generated, while its
Inside has a decarburization phenomenon and generates brittlement phase in hard alloy side, does not only result in Cemented Carbide Properties and changes the welding that also make
Joint performance is deteriorated.
4) in the welding process of hard alloy and steel, because the diffusion of carbon causes the lean carbon in hard alloy side, it will
M is generated in hard alloy fusion line position6C or M12The fragility η phase of c-type, butt joint performance has a negative impact.
The content of the invention
It is an object of the invention to：For hard alloy and steel easy produced problem in welding process, there is provided a kind of
The silver brazing solder and silver brazing method of hard alloy and steel, hard alloy, in shielding gas furnace brazing, realizes that hard is closed with steel
Gold and steel part welding, can effectively avoid cracking other welding manners, deformation, the low problem of weld strength, so as to replace
Cannot meet the fields such as sewage disposal, mine, metallurgy, coal fired power generation, oil speed top load, abrasion of particles, acid for plain steel
The severe rugged environments such as caustic corrosion, at the same can also solve whole hard alloy price it is high and cannot widely used problem.
To achieve these goals, the present invention provides the silver brazing solder of a kind of hard alloy and steel, and technical scheme is：
A kind of silver brazing solder of hard alloy and steel, described silver brazing solder is made using Ag-Cu-Zn nickeltin,
Weight percentage, the constituent of described Ag-Cu-Zn nickeltin includes the Ag, 20.0%- of 40.0%-58.0%
The Sn of the Ni of the Zn of 35.0% Cu, 6.0%-25.0%, 0.3%-4.0%, 0.5%-5.0%.
The present invention also provides the silver brazing welding method of a kind of hard alloy and steel, the material based on steel, Ag-Cu-Zn
Nickeltin is solder, the silver brazing hard alloy in gas shield stove；
Weight percentage, the constituent of described Ag-Cu-Zn nickeltin includes the Ag of 40.0%-58.0%,
The Sn of the Ni of the Zn of the Cu of 20.0%-35.0%, 6.0%-25.0%, 0.3%-4.0%, 0.5%-5.0%.
Preferably, the material based on steel, thickness is solder for the Ag-Cu-Zn nickeltin of 0.1mm-0.4mm,
Protective gas is passed through in gas shield stove, with heating rate as 0.5-8 DEG C/min, 550 DEG C -800 DEG C is heated to and is incubated 5-
240min, is cooled to room temperature, the silver brazing hard alloy on matrix material with 3-8 DEG C/min rate of temperature fall.
Preferably, during the silver brazing in gas shield stove, QJ102 silver brazing solvent is adopted for scaling powder.
Preferably, described steel are structural alloy steel, rustless steel or carbon steel.
Preferably, shielding gas is air pressure in the hydrogen of 0.05Mpa-0.15Mpa, nitrogen or argon in described gas shield stove
Gas.
Preferably, described hard alloy be tungsten-cobalt carbide, tungsten carbide-nickel, tungsten carbide-titanium carbide-cobalt or tungsten carbide-
Titanium carbide-nickel.
As a result of above-mentioned technical proposal, the invention has the beneficial effects as follows：
1st, it is passed through H in stove2、N2Or the protective gas such as Ar, air pressure range is big (0.05Mpa-0.15Mpa) in stove, can be effective
The element such as Zn, Sn for reducing low melting point in solder volatilization, while avoiding steel matrix, hard alloy, Ag-Cu-Zn nickeltin
The oxidation of solder；
2nd, using slow intensification, slow cooling (0.5-8 DEG C of heating rate/min, 3-8 DEG C of rate of temperature fall/min) technique, have
Effect reduces welding stress, it is to avoid the problems such as welding product ftractures, deforms；
3rd, welding temperature is low, temperature range width (550 DEG C -800 DEG C), therefore steel, hard alloy are non-fusible, can effectively drop
Low steel matrix, hard alloy composition scaling loss, avoid hard alloy carbon diffusion, it is ensured that hard alloy performance is not sent out
It is raw to change；
4th, using Ag-Cu-Zn nickeltin solder, composition, thickness are adjustable, can meet the needs of different soldering processes, compared with
Ag-Cu-Zn tin solder is compared, and because nickel element is added, can effectively improve solder and hard alloy, the wettability of steel part, weldering
Connecing intensity can increase substantially 50-100Mpa；
5th, gas shield furnace brazing steel and hard alloy bond strength are high, bond strength ＞ 350Mpa；
6th, the present invention can realize hard alloy and structural alloy steel, rustless steel, carbon steel soldering, soldering scope it is wide, can be with
Meet the needs under different working conditions；
7. the present invention can realize the problems such as other welding manners can not be welded, and welding quality stable reduces anthropic factor
Impact to product quality, such as gas shield high-frequency induction brazing cannot penetrate larger, thick product, temperature and cannot accurately control
System, the problems such as welding quality fluctuation is big, anthropic factor affects serious；
8th, the present invention has that equipment simple, flexible operation, technological requirement are low, and such as temperature is low, temperature precise control, scope
Wide (550-800 DEG C), vacuum ranges are big (0.05Mpa-0.15Mpa), and furnace atmosphere type is more, and part is without damage, can be with
Realize mass production.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that specific embodiment described herein is not used to only to explain the present invention
Limit the present invention.
Embodiment 1
Using based on 45Cr steel in GB/T3077-2015, WC-6%Co hard alloys are weldment to the present embodiment, silver-bearing copper
Zinc-nickel tin alloy is solder, and QJ102 silver brazing solvent is scaling powder.Weight percentage, the WC-6%Co hard is closed
Golden chemical composition：94%WC, 6%Co；The Ag-Cu-Zn nickeltin solder chemical composition：Ag：40.0%, Cu：29.0%,
Zn：25.0%, Ni：1.5%, Sn：4.5%.
45Cr steel, WC-6%Co carbide surfaces are carried out into oil removing, decontamination processing, for example with alcohol washes, will be welded
Junction uniform application a layer thickness is the QJ102 silver brazing solvents of 0.10-0.15mm, is the conjunction of 0.4mm silver-bearing copper zinc-nickels stannum by thickness
Gold solder inserts the position of welding required for 45Cr steel and WC-6%Co hard alloys, is put in stove after evacuation, is passed through hydrogen,
Make air pressure in stove reach 0.05Mpa, be heated to 550 DEG C with 0.5 DEG C/min heating rates and be incubated 240min, with 3 DEG C/min drops
Warm speed is slowly cooled to room temperature, and WC-6%Co hard alloys reach 363Mpa with 45Cr steel bond strengths.
Embodiment 2
The present embodiment is adopted in GB/T1220-2007 based on 06Cr19Ni10 steel, and WC-11%Ni hard alloys are welding
Part, Ag-Cu-Zn nickeltin is solder, and QJ102 silver brazing solvent is scaling powder.Weight percentage, the WC-11%
Ni hard alloy chemical compositions：89%WC, 11%Ni；The Ag-Cu-Zn nickeltin solder chemical composition：Ag：53.0%, Cu：
23.0%, Zn：17.0%, Ni：2.0%, Sn：5.0%.
By 06Cr19Ni10 steel, WC-11%Ni carbide surfaces carry out oil removing, decontamination processing, clear for example with ethanol
Wash, by the QJ102 silver brazing solvents that solder side uniform application a layer thickness is 0.10-0.15mm, just thickness is that 0.35mm is silver-colored
Copper zinc-nickel tin alloy solder inserts the position of welding required for 06Cr19Ni10 steel and WC-11%Co hard alloys, in being put into stove
After evacuation, hydrogen is passed through, makes air pressure in stove reach 0.15Mpa, be heated to 630 DEG C with 4 DEG C/min heating rates and be incubated
80min, is slowly cooled to room temperature with 5 DEG C/min rate of temperature fall, WC-11%Co hard alloys and 06Cr19Ni10 steel bond strengths
Reach 415Mpa.
Embodiment 3
The present embodiment is adopted in GB/T1220-2007 based on 022Cr25Ni6Mo2N steel, and WC-TiC-Ni hard alloys are
Weldment, Ag-Cu-Zn nickeltin is solder, and QJ102 silver brazing solvent is scaling powder.Weight percentage, the WC-
Ti-Ni hard alloy chemical compositions：20%WC, 60%TiC, 20%Ni；The Ag-Cu-Zn nickeltin solder chemical composition：
Ag：58.0%, Cu：20.0%, Zn：17.0%, Ni：4.0%, Sn：1.0%.
By 022Cr25Ni6Mo2N steel, WC-TiC-Ni carbide surfaces carry out oil removing, decontamination processing, for example with wine
Seminal plasma is washed, and is 0.40mm by thickness by the QJ102 silver brazing solvents that solder side uniform application a layer thickness is 0.10-0.15mm
Ag-Cu-Zn nickeltin solder inserts the position of welding required for 022Cr25Ni6Mo2N steel and WC-TiC-Ni hard alloys, puts
Enter in stove after evacuation, be passed through hydrogen, make air pressure in stove reach 0.10Mpa, 740 DEG C are heated to simultaneously with 6 DEG C/min heating rates
Insulation 30min, is slowly cooled to room temperature, WC-TiC-Ni hard alloys and 022Cr25Ni6Mo2N steel with 8 DEG C/min rate of temperature fall
Bond strength reaches 376Mpa.
Embodiment 4
The method that the present embodiment is used for silver brazing hard alloy and steel in gas shield stove.The present embodiment adopts GB/T699-
In 2014 based on 45 steel, WC-TiC-Co hard alloys are weldment, and Ag-Cu-Zn nickeltin is solder, and QJ102 silver brazing is molten
Agent is scaling powder.Weight percentage, the WC-Ti-Co hard alloys chemical composition：78%WC, 15%TiC, 7%
Co；The Ag-Cu-Zn nickeltin solder chemical composition：Ag：54.0%, Cu：35.0%, Zn：6.0%, Ni：0.3%, Sn：
4.7%.
45 steel, WC-TiC-Co carbide surfaces are carried out into oil removing, decontamination processing, for example with alcohol washes, will be welded
Face uniform application a layer thickness is the QJ102 silver brazing solvents of 0.10-0.15mm, is 0.1mm Ag-Cu-Zn nickeltins by thickness
Solder inserts the position of welding required for 45 steel and WC-TiC-Co hard alloys, is put in stove after evacuation, is passed through argon, makes
Air pressure reaches 0.08Mpa in stove, is heated to 800 DEG C with 8 DEG C/min heating rates and is incubated 5min, with 4 DEG C/min rate of temperature fall
It is slowly cooled to room temperature, WC-TiC-Co hard alloys and 45 steel bond strengths reach 411Mpa.
Embodiment 5
The method that the present embodiment is used for silver brazing hard alloy and steel in gas shield stove.The present embodiment adopts GB/
In T3077-2015 based on 40CrMnMo steel, WC-TiC-Co hard alloys are weldment, and Ag-Cu-Zn nickeltin is solder,
QJ102 silver brazing solvent is scaling powder.Weight percentage, the WC-Ti-Ni hard alloys chemical composition：55%WC,
30%TiC, 15%Co；The Ag-Cu-Zn nickeltin solder chemical composition：Ag：50.0%, Cu：30.0%, Zn：17.5%,
Ni：2%, Sn：0.5%.
By 40CrMnMo steel, WC-TiC-Co carbide surfaces carry out oil removing, decontamination processing, for example with alcohol washes,
It is 0.15mm silver-bearing copper zinc-nickels by thickness by the QJ102 silver brazing solvents that solder side uniform application a layer thickness is 0.10-0.15mm
Tin alloy solder inserts the position of welding required for 40CrMnMo steel and WC-TiC-Co hard alloys, is put in stove after evacuation,
Be passed through Ar, make air pressure in stove reach 0.06Mpa, be heated to 780 DEG C with 7 DEG C/min heating rates and be incubated 25min, with 4.5 DEG C/
Min rate of temperature fall is slowly cooled to room temperature, and WC-TiC-Co hard alloys reach 431Mpa with 40CrMnMo steel bond strengths.
Claims (7)
1. the silver brazing solder of a kind of hard alloy and steel, it is characterised in that described silver brazing solder adopts silver-bearing copper zinc-nickel stannum
Alloy is made, weight percentage, and the constituent of described Ag-Cu-Zn nickeltin includes 40.0%-58.0%'s
The Sn of the Ni of the Zn of the Cu of Ag, 20.0%-35.0%, 6.0%-25.0%, 0.3%-4.0%, 0.5%-5.0%.
2. the silver brazing welding method of a kind of hard alloy and steel, it is characterised in that the material based on steel, silver-bearing copper zinc-nickel stannum
Alloy is solder, the silver brazing hard alloy in gas shield stove；
Weight percentage, the constituent of described Ag-Cu-Zn nickeltin includes the Ag of 40.0%-58.0%,
The Sn of the Ni of the Zn of the Cu of 20.0%-35.0%, 6.0%-25.0%, 0.3%-4.0%, 0.5%-5.0%.
3. silver brazing welding method according to claim 2, it is characterised in that the material based on steel, thickness is
The Ag-Cu-Zn nickeltin of 0.1mm-0.4mm is solder, and in gas shield stove protective gas is passed through, and is with heating rate
0.5-8 DEG C/min, it is heated to 550 DEG C -800 DEG C and is incubated 5-240min, room temperature is cooled to 3-8 DEG C/min rate of temperature fall,
Silver brazing hard alloy on matrix material.
4. silver brazing welding method according to claim 3, it is characterised in that the silver brazing process in gas shield stove
In, QJ102 silver brazing solvent is adopted for scaling powder.
5. the silver brazing welding method according to Claims 2 or 3, it is characterised in that described steel be structural alloy steel,
Rustless steel or carbon steel.
6. silver brazing welding method according to claim 3, it is characterised in that shielding gas is in described gas shield stove
Air pressure is in the hydrogen of 0.05Mpa-0.15Mpa, nitrogen or argon.
7. the silver brazing welding method according to claim 2 or 2, it is characterised in that described hard alloy be tungsten carbide-
Cobalt, tungsten carbide-nickel, tungsten carbide-titanium carbide-cobalt or tungsten carbide-titanium carbide-nickel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610921009.5A CN106563893A (en) | 2016-10-21 | 2016-10-21 | Silver brazing solder of cemented carbide and steel and silver brazing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610921009.5A CN106563893A (en) | 2016-10-21 | 2016-10-21 | Silver brazing solder of cemented carbide and steel and silver brazing method thereof |
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| CN106563893A true CN106563893A (en) | 2017-04-19 |
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| CN201610921009.5A Pending CN106563893A (en) | 2016-10-21 | 2016-10-21 | Silver brazing solder of cemented carbide and steel and silver brazing method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107471127A (en) * | 2017-08-25 | 2017-12-15 | 郑州博特硬质材料有限公司 | A kind of method for preparing soldering hard material mill using discarded blade |
| CN109014655A (en) * | 2018-08-15 | 2018-12-18 | 佛山市诺普材料科技有限公司 | A kind of silver alloy soldering paste and preparation method thereof with good dispensing performance |
| CN109623066A (en) * | 2018-12-19 | 2019-04-16 | 中铁工程装备集团有限公司 | A kind of atmosphere protection soldering shield cutter technique |
| CN111391433A (en) * | 2020-05-09 | 2020-07-10 | 长沙威尔保新材料有限公司 | Wear-resistant composite metal material and preparation method thereof |
| CN113084392A (en) * | 2021-03-29 | 2021-07-09 | 华南理工大学 | Ag-Cu-Ti-Sn-Ni active alloy solder and preparation method thereof |
| CN115055862A (en) * | 2022-06-20 | 2022-09-16 | 河北工业大学 | Preparation method and application of brazing filler metal for connecting WC-Co hard alloy and steel at low temperature |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532840A (en) * | 1976-09-24 | 1978-11-22 | Sheffield Smelting Co Ltd | Brazing alloys |
| CN1404957A (en) * | 2001-09-18 | 2003-03-26 | 北京航空材料研究院 | Cadmium-free silver-base solder |
| CN101342626A (en) * | 2008-09-05 | 2009-01-14 | 王朝 | Welding method and silver based metal for hard-alloy heavy type cutting tools |
| CN101347871A (en) * | 2007-07-17 | 2009-01-21 | 上海电气集团上海电机厂有限公司 | Use of low-silver solder in technique for brazing end ring and guide strip of electric machine rotor |
| CN104057212A (en) * | 2014-07-01 | 2014-09-24 | 张家港市佳晟机械有限公司 | High-performance silver-based solder |
| JP2015139777A (en) * | 2014-01-27 | 2015-08-03 | 住友金属鉱山株式会社 | Au-Sb TYPE SOLDER ALLOY |
-
2016
- 2016-10-21 CN CN201610921009.5A patent/CN106563893A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1532840A (en) * | 1976-09-24 | 1978-11-22 | Sheffield Smelting Co Ltd | Brazing alloys |
| CN1404957A (en) * | 2001-09-18 | 2003-03-26 | 北京航空材料研究院 | Cadmium-free silver-base solder |
| CN101347871A (en) * | 2007-07-17 | 2009-01-21 | 上海电气集团上海电机厂有限公司 | Use of low-silver solder in technique for brazing end ring and guide strip of electric machine rotor |
| CN101342626A (en) * | 2008-09-05 | 2009-01-14 | 王朝 | Welding method and silver based metal for hard-alloy heavy type cutting tools |
| JP2015139777A (en) * | 2014-01-27 | 2015-08-03 | 住友金属鉱山株式会社 | Au-Sb TYPE SOLDER ALLOY |
| CN104057212A (en) * | 2014-07-01 | 2014-09-24 | 张家港市佳晟机械有限公司 | High-performance silver-based solder |
Non-Patent Citations (1)
| Title |
|---|
| 邱葭菲: "《焊接方法与工艺》", 31 August 2013, 机械工业出版社 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107471127A (en) * | 2017-08-25 | 2017-12-15 | 郑州博特硬质材料有限公司 | A kind of method for preparing soldering hard material mill using discarded blade |
| CN109014655A (en) * | 2018-08-15 | 2018-12-18 | 佛山市诺普材料科技有限公司 | A kind of silver alloy soldering paste and preparation method thereof with good dispensing performance |
| CN109623066A (en) * | 2018-12-19 | 2019-04-16 | 中铁工程装备集团有限公司 | A kind of atmosphere protection soldering shield cutter technique |
| CN109623066B (en) * | 2018-12-19 | 2021-05-07 | 中铁工程装备集团有限公司 | Atmosphere protection brazing shield cutter process |
| CN111391433A (en) * | 2020-05-09 | 2020-07-10 | 长沙威尔保新材料有限公司 | Wear-resistant composite metal material and preparation method thereof |
| CN111391433B (en) * | 2020-05-09 | 2021-11-02 | 长沙威尔保新材料有限公司 | Wear-resistant composite metal material and preparation method thereof |
| CN113084392A (en) * | 2021-03-29 | 2021-07-09 | 华南理工大学 | Ag-Cu-Ti-Sn-Ni active alloy solder and preparation method thereof |
| CN115055862A (en) * | 2022-06-20 | 2022-09-16 | 河北工业大学 | Preparation method and application of brazing filler metal for connecting WC-Co hard alloy and steel at low temperature |
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