CN106119761A - A kind of hard alloy composite block and preparation method thereof - Google Patents
A kind of hard alloy composite block and preparation method thereof Download PDFInfo
- Publication number
- CN106119761A CN106119761A CN201610750432.3A CN201610750432A CN106119761A CN 106119761 A CN106119761 A CN 106119761A CN 201610750432 A CN201610750432 A CN 201610750432A CN 106119761 A CN106119761 A CN 106119761A
- Authority
- CN
- China
- Prior art keywords
- hard alloy
- layer
- brazing
- filler metal
- brazing flux
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/021—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one metal alloy layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
- C23C28/026—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material including at least one amorphous metallic material layer
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
The invention discloses a kind of hard alloy composite block, including hard alloy blocks, the lower surface of described hard alloy blocks is compounded with brazing filler metal alloy layer and brazing flux layer successively.The thickness of brazing filler metal alloy layer is 0.01～20mm, and the thickness of brazing flux layer is 0.01～5mm.During preparation, is deoiled in the hard alloy blocks surface being of the required size, blasting treatment, use thermal spraying apparatus hard alloy blocks surface to be welded spray certain thickness brazing filler metal alloy layer, then deposit one layer of brazing flux layer in thermal spraying mode again on brazing filler metal alloy layer surface；Directly this hard alloy composite block and matrix are assembled during soldering.Assembly precision of the present invention is high and convenient, and hard alloy blocks carries solder and brazing flux, it is achieved that brazing flux is automatically, quantitatively, precisely add；Form metallurgical binding between hard alloy and solder interface, improve the solder joint filling to hard alloy；Brazing flux is attached to brazing filler metal alloy surface with vitreous body form, and adhesive strength is high.
Description
Technical field
The present invention relates to welding field, especially relate to a kind of hard alloy composite block, the invention still further relates to this hard and close
The preparation method of gold composite block.
Background technology
Hard alloy has the highest hardness, good wear-resistant and thermohardening, is widely used in metal-cutting machine tool, ore deposit
Mountain digging, coal mining cutting pick, mine drilling, oil drilling, geological prospecting instrument, drawing, extruding, diel, build work drilling tool, wood
Work instrument, roll, collars, measurer, the spraying of various wear-resistant machine components rubbing surfaces, pricker are coated with and surfacing.
Owing to hard alloy price is higher, its plasticity and impact flexibility are poor, therefore the application shape of major part hard alloy
Formula is to use fritter hard alloy as inserts, depends on the working position of the high-strength steel making part such as structural steel, tool steel,
Withstood shocks load by high-strength steel, save the hard alloy consumption that price is high, to reduce manufacturing cost.Conventional closes hard
The method that Jin Yugang links into an integrated entity has: method for brazing, mechanical consolidation method, stress nesting and bonding method.Soldering is to be closed by hard
Gold is securely attached on steel matrix metal most widely used general, is also one of most successful method.
Traditional carbide filler Welding is to carry out pricker after hard alloy blocks, brazing filler metal alloy sheet, matrix assembling completely
Weldering.This needs higher assembly precision, and otherwise solder is not enough, causes shortcoming；Solder is too much, causes waste, and needs to carry out
Following process processes.For preventing solder and matrix oxidation from needing to be continuously added brazing flux in brazing process, brazing flux amount is wayward, pricker
Dosage is few, and matrix and solder easily aoxidize, and causes pore, the brazing defect such as is mingled with, and soldered fitting adversely affects；Brazing flux amount
Too much, it is attached to matrix surface with vitreous body form after brazing flux fusing, adds the difficulty that following process processes.
Summary of the invention
It is an object of the invention to provide a kind of easy to assembly, carry the hard alloy composite block of solder and brazing flux, this
The bright preparation method also providing for this hard alloy composite block.
For achieving the above object, the present invention can take following technical proposals:
Hard alloy composite block of the present invention, including hard alloy blocks, the lower surface of described hard alloy blocks is combined successively
There are brazing filler metal alloy layer and brazing flux layer.
The thickness of described brazing filler metal alloy layer is 0.01～20mm, and the thickness of described brazing flux layer is 0.01～5mm.
One during wherein brazing filler metal alloy layer is fine copper, cuprio, money base, manganio, palladio, titanium based solder, brazing flux layer be with
The general brazing flux that brazing filler metal alloy is corresponding.
The preparation method of the hard alloy composite block of the present invention is:
Is deoiled in the hard alloy blocks surface being of the required size, blasting treatment, use thermal spraying apparatus at hard alloy blocks
Surface to be welded sprays certain thickness brazing filler metal alloy layer, then deposits one layer of brazing flux in thermal spraying mode again on brazing filler metal alloy layer surface
Layer；Directly this hard alloy composite block and matrix are assembled during soldering.
It is an advantage of the current invention that assembly precision is high and convenient, owing to hard alloy blocks carries solder and brazing flux, soldering
Journey achieves brazing flux automatically, quantitatively, precisely add；Form metallurgical binding between hard alloy and solder interface, improve solder
Joint filling to hard alloy；Owing to using thermal spraying mode to deposit brazing flux layer on brazing filler metal alloy layer surface, brazing flux is with vitreous body
Form is attached to brazing filler metal alloy surface, and adhesive strength is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
As it is shown in figure 1, hard alloy composite block of the present invention, including hard alloy blocks 1, at hard alloy blocks 1
Lower surface is compounded with brazing filler metal alloy layer 2 and brazing flux layer 3 successively.
According to actual soldering situation, the thickness of brazing filler metal alloy layer 2 according to the big I of solder joint filling between 0.01～20mm
Adjusting, the complexity that the thickness of brazing flux layer 3 is removed according to surface of the work oxide-film can adjust between 0.01～5mm.
Preparation method and its technology having of this hard alloy composite block is further illustrated below by specific embodiment
Effect.
Embodiment 1
Hard alloy blocks 1 selects YG6, a size of 20mm × 20mm × 10mm；Brazing filler metal alloy selects BCu58ZnMn, and thickness is
The band of 0.2mm and the silk of diameter 2.0mm；Matrix material selects Q235 steel, a size of 20mm × 20mm × 20mm；Brazing flux is selected
YJ2；Method for welding is induction brazing.First method is to be sprayed to through thermal spraying apparatus by the BCu58ZnMn silk of diameter 2.0mm
The surface to be welded of hard alloy blocks, coating layer thickness is 0.2mm, and then brazing filler metal alloy surface deposits one layer of brazing flux in thermal spraying mode,
Thickness is 0.1mm, is assembled with Q235 by this hard alloy blocks, uses high-frequency induction welder welding, until forming soldered fitting；The
Two kinds of methods are the lamellars that the BCu58ZnMn band that thickness is 0.2mm cuts into a size of 20mm × 20mm × 0.2mm, will be hard
Matter alloy block, scribble the solder sheet of paste brazing flux, matrix assembling, use identical soldering processes to carry out soldering, in brazing process
It is continuously added powdery brazing flux, forms soldered fitting.The soldered fitting forming two kinds of methods carries out shear strength test, the first
Soldered fitting shear strength is 342Mpa, and the second soldered fitting shear strength is 323Mpa, and the above results shows, uses this
Bright method brazing hard alloy, strength of joint is significantly improved.
Embodiment 2
Hard alloy blocks selects YG6, a size of 20mm × 20mm × 10mm；Brazing filler metal alloy selects BAg40CuZnCd, and thickness is
The band of 0.3mm and the silk of diameter 2.0mm；Matrix material selects Q235 steel, a size of 20mm × 20mm × 20mm；Brazing flux is selected
FB102；Method for welding is induction brazing.First method is to be sprayed through thermal spraying apparatus by the BAg40CuZnCd silk of diameter 2.0mm
Being coated onto the surface to be welded of hard alloy blocks, coating layer thickness is 0.3mm, then deposits one layer on brazing filler metal alloy surface in thermal spraying mode
Brazing flux, thickness is 0.2mm, is assembled with Q235 by this hard alloy blocks, uses high-frequency induction welder welding, connects until forming soldering
Head；Second method is that the BAg40CuZnCd band that thickness is 0.2mm cuts into the sheet of a size of 20mm × 20mm × 0.2mm
Shape, by hard alloy blocks, scribbles the solder sheet of paste brazing flux, matrix assembling, uses identical soldering processes to carry out soldering, soldering
During be continuously added powdery brazing flux, form soldered fitting.The soldered fitting forming two kinds of methods carries out shear strength test,
The first soldered fitting shear strength is 325Mpa, and the second soldered fitting shear strength is 313Mpa, uses the side of the present invention
Method brazing hard alloy, strength of joint is significantly improved.
Embodiment 3
Hard alloy blocks selects YG6, a size of 20mm × 20mm × 10mm；Brazing filler metal alloy selects BAg49CuZnMnNi, and thickness is
The band of 0.4mm and the silk of diameter 2.0mm；Matrix material selects Q235 steel, a size of 20mm × 20mm × 20mm；Brazing flux is selected
FB102；Method for welding is induction brazing.First method is through thermal spraying apparatus by the BAg49CuZnMnNi silk of diameter 2.0mm
Spraying to the surface to be welded of hard alloy blocks, coating layer thickness is 0.4mm, then deposits one on brazing filler metal alloy surface in thermal spraying mode
Layer brazing flux, thickness is 0.2mm, is assembled with Q235 by this hard alloy blocks, uses high-frequency induction welder welding, until forming soldering
Joint；Second method is that the BAg49CuZnMnNi band that thickness is 0.2mm is cut into a size of 20mm × 20mm × 0.2mm
Lamellar, by hard alloy blocks, scribble the solder sheet of paste brazing flux, matrix assembling, use identical soldering processes to carry out soldering,
Brazing process is continuously added powdery brazing flux, forms soldered fitting.The soldered fitting forming two kinds of methods carries out shear strength
Test, the first soldered fitting shear strength is 395Mpa, and the second soldered fitting shear strength is 363Mpa, uses the present invention
Method brazing hard alloy, strength of joint is significantly improved.
Embodiment 4
Hard alloy blocks selects YG6, a size of 20mm × 20mm × 10mm；Brazing filler metal alloy selects BAg40CuZnCdNi, and thickness is
The band of 0.2mm and the silk of diameter 2.0mm；Matrix material selects Q235 steel, a size of 20mm × 20mm × 20mm；Brazing flux is selected
FB102；Method for welding is induction brazing.First method is through thermal spraying apparatus by the BAg40CuZnCdNi silk of diameter 2.0mm
Spraying to the surface to be welded of hard alloy blocks, coating layer thickness is 0.2mm, then deposits one on brazing filler metal alloy surface in thermal spraying mode
Layer brazing flux, thickness is 0.1mm, is assembled with Q235 by this hard alloy blocks, uses high-frequency induction welder welding, until forming soldering
Joint；Second method is that the BAg40CuZnCdNi band that thickness is 0.2mm is cut into a size of 20mm × 20mm × 0.2mm
Lamellar, by hard alloy blocks, scribble the solder sheet of paste brazing flux, matrix assembling, use identical soldering processes to carry out soldering,
Brazing process is continuously added powdery brazing flux, forms soldered fitting.The soldered fitting forming two kinds of methods carries out shear strength
Test, the first soldered fitting shear strength is 363Mpa, and the second soldered fitting shear strength is 351Mpa, uses the present invention
Method brazing hard alloy, strength of joint is significantly improved.
Embodiment 5
Hard alloy blocks selects YG6, a size of 20mm × 20mm × 10mm；Brazing filler metal alloy selects BAg40CuZnNi, and thickness is
The band of 0.2mm and the silk of diameter 2.0mm；Matrix material selects Q235 steel, a size of 20mm × 20mm × 20mm；Brazing flux is selected
FB102；Method for welding is induction brazing.First method is to be sprayed through thermal spraying apparatus by the BAg40CuZnNi silk of diameter 2.0mm
Being coated onto the surface to be welded of hard alloy blocks, coating layer thickness is 0.2mm, then deposits one layer on brazing filler metal alloy surface in thermal spraying mode
Brazing flux, thickness is 0.1mm, is assembled with Q235 by this hard alloy blocks, uses high-frequency induction welder welding, in welding process constantly
Add brazing flux, until forming soldered fitting；Second method is that the BAg40CuZnNi band that thickness is 0.2mm is cut into size
For the lamellar of 20mm × 20mm × 0.2mm, by hard alloy blocks, scribble the solder sheet of paste brazing flux, matrix assembling, use identical
Soldering processes carry out soldering, brazing process is continuously added powdery brazing flux, forms soldered fitting.The pricker that two kinds of methods are formed
Plumb joint carries out shear strength test, and the first soldered fitting shear strength is 353Mpa, the second soldered fitting shear strength
For 342Mpa, using the method brazing hard alloy of the present invention, strength of joint is significantly improved.
Claims (4)
1. a hard alloy composite block, including hard alloy blocks (1), it is characterised in that: the following table of described hard alloy blocks (1)
Face is compounded with brazing filler metal alloy layer (2) and brazing flux layer (3) successively.
Hard alloy composite block the most according to claim 1, it is characterised in that: the thickness of described brazing filler metal alloy layer (2) is
0.01～20mm, the thickness of described brazing flux layer (3) is 0.01～5mm.
Hard alloy composite block the most according to claim 1, it is characterised in that: described hard alloy layer be fine copper, cuprio,
One in money base, manganio, palladio, titanium based solder, described brazing flux layer is the general brazing flux corresponding with described brazing filler metal alloy layer.
4. the preparation method of the hard alloy composite block described in claim 1 is:
Is deoiled in the hard alloy blocks surface being of the required size, blasting treatment, use thermal spraying apparatus at hard alloy blocks
Surface to be welded sprays certain thickness brazing filler metal alloy layer, then deposits one layer of brazing flux in thermal spraying mode again on brazing filler metal alloy layer surface
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610750432.3A CN106119761A (en) | 2016-08-30 | 2016-08-30 | A kind of hard alloy composite block and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610750432.3A CN106119761A (en) | 2016-08-30 | 2016-08-30 | A kind of hard alloy composite block and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106119761A true CN106119761A (en) | 2016-11-16 |
Family
ID=57272782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610750432.3A Pending CN106119761A (en) | 2016-08-30 | 2016-08-30 | A kind of hard alloy composite block and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106119761A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761067A (en) * | 2020-06-23 | 2020-10-13 | 西安理工大学 | Steel-based stamping die and preparation method thereof |
| CN114632986A (en) * | 2022-05-20 | 2022-06-17 | 西安热工研究院有限公司 | Brazing pipe plugging method for high-temperature gas cooled reactor steam generator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524779A (en) * | 2008-03-05 | 2009-09-09 | 丹阳市友和工具有限责任公司 | Brazing technology for diamond |
| CN101856758A (en) * | 2010-05-28 | 2010-10-13 | 河海大学常州校区 | Method for welding hard alloy steelwork and 45 steelwork |
| CN102581573A (en) * | 2012-03-19 | 2012-07-18 | 沈阳航新金属复合科技有限公司 | Method for hot-rolling and preparing composite plates by means of hot spraying preset brazing filler materials |
| CN103071878A (en) * | 2013-01-11 | 2013-05-01 | 中国矿业大学 | Braze welding method for hard alloy and low-alloy and high-strength steel |
| CN105382439A (en) * | 2015-12-16 | 2016-03-09 | 郑州机械研究所 | Tubular braze coating material |
-
2016
- 2016-08-30 CN CN201610750432.3A patent/CN106119761A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101524779A (en) * | 2008-03-05 | 2009-09-09 | 丹阳市友和工具有限责任公司 | Brazing technology for diamond |
| CN101856758A (en) * | 2010-05-28 | 2010-10-13 | 河海大学常州校区 | Method for welding hard alloy steelwork and 45 steelwork |
| CN102581573A (en) * | 2012-03-19 | 2012-07-18 | 沈阳航新金属复合科技有限公司 | Method for hot-rolling and preparing composite plates by means of hot spraying preset brazing filler materials |
| CN103071878A (en) * | 2013-01-11 | 2013-05-01 | 中国矿业大学 | Braze welding method for hard alloy and low-alloy and high-strength steel |
| CN105382439A (en) * | 2015-12-16 | 2016-03-09 | 郑州机械研究所 | Tubular braze coating material |
Non-Patent Citations (1)
| Title |
|---|
| 美国焊接学会编 清华大学焊接教研组译: "《焊接手册》", 31 March 1986, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111761067A (en) * | 2020-06-23 | 2020-10-13 | 西安理工大学 | Steel-based stamping die and preparation method thereof |
| CN114632986A (en) * | 2022-05-20 | 2022-06-17 | 西安热工研究院有限公司 | Brazing pipe plugging method for high-temperature gas cooled reactor steam generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4682987A (en) | Method and composition for producing hard surface carbide insert tools | |
| PL368251A1 (en) | Method for repair, particularly repair of a crack, by brazing, as well as soldering paste | |
| CN106112307B (en) | A kind of lamellar composite pricker applies material and preparation method thereof | |
| CN107283058A (en) | A kind of lifting aluminium, the welding method of steel weldment welding effect | |
| CN114226899A (en) | Composite brazing method for cutting tooth | |
| CN107253290A (en) | Side set arrangement diamond saw blade and preparation method thereof | |
| CN104259633A (en) | Efficient single-side submerged arc welding method | |
| CN101737044A (en) | High-abrasion resistance cutting teeth of coal-winning machine and production process thereof | |
| CN106119761A (en) | A kind of hard alloy composite block and preparation method thereof | |
| CN106141493A (en) | A kind of diamond compact brazing solder and welding procedure thereof | |
| CN112831783A (en) | Nickel-based wear-resistant alloy powder and method for cladding wear-resistant coating on surface of steel substrate | |
| JPH0530562B2 (en) | ||
| CN106270873B (en) | A kind of method for welding of hard alloy | |
| CN107457480A (en) | A kind of welding method for increasing soft metal and hard metal foreign material backfill formula friction stir spot welding strength of joint | |
| CN101053981B (en) | Brazing-thermal pressing sintering diamond tool sectional block | |
| CN104889518A (en) | Single-layer high-temperature diamond grinding wheel brazing process | |
| CN106112315A (en) | A kind of hard alloy blocks carrying solder and preparation method thereof | |
| CN112621014A (en) | Aluminum powder-containing flux-cored silver solder for brazing hard alloy and preparation method thereof | |
| JP2896749B2 (en) | Drilling bit and manufacturing method thereof | |
| CN101579735A (en) | Self-fluxing solid material of diamond high-temperature alloy | |
| CN102513728A (en) | High-hardness high-wear-resistant surfacing electrode for multilayer surfacing | |
| CN108044252B (en) | Impact-resistant flux-cored composite brazing cake with spiral framework and preparation method thereof | |
| CN106167902A (en) | A kind of Surface hardened layer pricker is coated with material and preparation method thereof | |
| CN110125510B (en) | Resistance brazing connection method for preparing long-size hard alloy | |
| CN205736556U (en) | diamond graver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
|
| RJ01 | Rejection of invention patent application after publication |