CN110253177A - Flux-cored wire and preparation method thereof - Google Patents
Flux-cored wire and preparation method thereof Download PDFInfo
- Publication number
- CN110253177A CN110253177A CN201910465302.9A CN201910465302A CN110253177A CN 110253177 A CN110253177 A CN 110253177A CN 201910465302 A CN201910465302 A CN 201910465302A CN 110253177 A CN110253177 A CN 110253177A
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- Prior art keywords
- flux
- cored wire
- component
- graphite
- follows
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Classifications
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- 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
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
- B23K35/0266—Rods, electrodes, wires flux-cored
-
- 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
-
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/3601—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
-
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/368—Selection of non-metallic compositions of core materials either alone or conjoint with selection of soldering or welding materials
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention discloses a kind of flux-cored wire and preparation method thereof, the component and each component mass percent that flux-cored wire contains are as follows: marble 3-7%；Fluorite 4-8%；Silicate 2-6%；Graphite 5-9%；Crome metal 10-20%；High carbon ferro-chrome 60-70% amounts to 100%.Highly uniform seam organization can be obtained under conditions of being added without other alloying elements using flux-cored wire welding of the invention, it is ensured that the hardness of seam organization improves the wearability of seam organization.
Description
Technical field
The present invention relates to a kind of flux-cored wires and preparation method thereof.
Background technique
Currently, the flux-cored wire that present high hardness wear-resisting grain is worn is widely used that Fe-Cr-C alloy system,
Wear-resisting hard phase constitution is mainly chromium carbide tissue in built-up welding tissue.But this built-up welding group is woven in the weld seam in general flux-cored wire
It is not well-proportioned, although surfacing layer's hardness is very high (HRC is up to 60 or more), under certain conditions, especially
Be it is some have corrosive abrasive wear under conditions of, the overlay cladding of this alloy system is often not satisfactory.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of existing technologies, a kind of flux-cored wire is provided, is made
Highly uniform seam organization can be obtained, it is ensured that weld seam under conditions of being added without other alloying elements by being welded with it
The hardness of tissue improves the wearability of seam organization.
In order to solve the above-mentioned technical problem, the technical scheme is that a kind of flux-cored wire, the component that it contains
And each component mass percent is as follows:
Marble 3-7%；
Fluorite 4-8%；
Silicate 2-6%；
Graphite 5-9%；
Crome metal 10-20%；
High carbon ferro-chrome 60-70% amounts to 100%.
The chemical component and percentage composition of high carbon ferro-chrome are as follows: Cr:65-69%；C:6-10%；Si≤3%；S≤
0.03%；P≤0.03%.
Further, graphite is aquadag, and the chemical component and percentage composition of graphite are C >=99.5%, S≤
0.02%, P≤0.02%
Further, the chemical component and percentage composition of fluorite are as follows: CaF2>=98%, Si≤1.5%, S≤0.03%, P
≤ 0.03%.
Further, in marble, CaCO3>=98.5wt%.
The present invention also provides a kind of preparation method of flux-cored wire, the step of method in contain:
The powder of each component is sieved respectively；
By the powder drying after sieving；
Each component after drying is mixed according to corrresponding quality percentage ingredient, obtains mixture；
It adds mixture into U-shaped steel band and flux-cored wire is made.
Alloying element, which is added, refines surfacing layer, and is equivalent to hard phase level after structure refinement and increases, certain
The influence of illeffects caused by this mill stripping reduces in degree, to improve wearability.
The approach of the wearability of raising overlay cladding of the invention is different with addition alloying element thinning microstructure, be by adjusting
Medicinal powder formula in flux-cored wire obtains highly uniform seam organization under conditions of being added without other alloying elements,
Weld seam, which is knitted, is improved its wearability by the uniformity of its hard phase.
The present invention improves Fe-Cr-C alloy system seam organization Contrast of Wear Resistance and improves Fe-Cr-C alloy system with alloying element
Seam organization wearability is there are two obvious advantage: 1, appearance of weld is beautiful, and 2, save material cost.
Flux-cored wire weld metal HRC hardness number of the invention is about 63, and more constant, variation range is only
HRC63 to HRC63.5 is influenced by current standard, only 0.5 difference.
Uniform weld seam is knitted in order to obtain, and (one) is to solve gas pore in weld metal problem, rich chromium cast iron flux-cored wire
Generally a small amount of spilehole present in arc crater is not minded, because its wearability for having no effect on welding workpiece, but at this
The presence of micro spilehole can all influence the uniformity of tissue in the flux-cored wire of invention.Stomata is divided into two classes, Yi Leishi
Hydrogen blistering, one kind are carbon monoxide stomatas, and rich chromium cast iron welds existing stomata and is generally carbon monoxide stomata.Welding process is exactly
Chemical metallurgy process is welded, in the process, redox reaction is through always, and FeO activity is excessive, is also easy to produce CO gas
Hole, in this flux-cored wire formula, graphite and metal material are reducing substances, and carbonate (marble) and silicate are
Oxidising material reacts the chemical metallurgy of this flux-cored wire by selection and the suitable formula rate of selection and is able to satisfy
It is required that the chemical metallurgy reaction instantaneous oxidation reduction balance of welding process, not because the fusing point difference of a variety of materials is impacted, gas
Hole problem is addressed.
Specific embodiment
The present invention provides a kind of flux-cored wire and preparation method thereof, those skilled in the art can be used for reference in this paper
Hold, is suitably modified realization of process parameters.In particular, it should be pointed out that all similar substitutions and modifications are to those skilled in the art
For be it will be apparent that they shall fall within the protection scope of the present invention.Method and application of the invention has passed through preferably real
It applies example to be described, related personnel can obviously not depart from the content of present invention, in spirit and scope to methods herein and answer
With being modified or appropriate changes and combinations, carry out implementation and application the technology of the present invention.
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 3-7%；
Fluorite 4-8%；
Silicate 2-6%；
Graphite 5-9%；
Crome metal 10-20%；
High carbon ferro-chrome 60-70% amounts to 100%.
In core wire medicinal powder, these three materials of high carbon ferro-chrome, graphite, crome metal are that the object of hard phase is provided for seam organization
Matter basis.
The chemical component and percentage composition of high carbon ferro-chrome are as follows: Cr:65-69%；C:6-10%；Si≤3%；S≤
0.03%；P≤0.03%.
Further, graphite is aquadag, and the chemical component and percentage composition of graphite are C >=99.5%, S≤
0.02%, P≤0.02%
In order to obtain the seam organization that stiffness constant is HRC63, calcite and fluorite is also required, the change of fluorite
It studies point and percentage composition are as follows: CaF2>=98%, Si≤1.5%, S≤0.03%, P≤0.03%；In marble, CaCO3
>=98.5wt%.
The present invention also provides a kind of preparation method of flux-cored wire, the step of method in contain:
The powder of each component is sieved respectively；
By the powder drying after sieving；
It is by each component after drying according to corrresponding quality percentage ingredient, the medicinal powder prepared is sufficiently mixed with three-dimensional mixed powder machine
It closes, obtains mixture, keep dry until being packed into the medicinal powder bucket of forming production line；
When the powder feeding machine of U-shaped steel band logical overmolding production line, adds mixture into U-shaped steel band and flux-cored wire is made.
Alloying element, which is added, refines surfacing layer, and is equivalent to hard phase level after structure refinement and increases, certain
The influence of illeffects caused by this mill stripping reduces in degree, to improve wearability.
The approach of the wearability of raising overlay cladding of the invention is different with addition alloying element thinning microstructure, be by adjusting
Medicinal powder formula in flux-cored wire obtains highly uniform seam organization under conditions of being added without other alloying elements,
Weld seam, which is knitted, is improved its wearability by the uniformity of its hard phase.
The present invention improves Fe-Cr-C alloy system seam organization Contrast of Wear Resistance and improves Fe-Cr-C alloy system with alloying element
Seam organization wearability is there are two obvious advantage: 1, appearance of weld is beautiful, and 2, save material cost.
Flux-cored wire weld metal HRC hardness number of the invention is about 63, and more constant, variation range is only
HRC63 to HRC63.5 is influenced by current standard, only 0.5 difference.
Uniform weld seam is knitted in order to obtain, and (one) is to solve gas pore in weld metal problem, rich chromium cast iron flux-cored wire
Generally a small amount of spilehole present in arc crater is not minded, because its wearability for having no effect on welding workpiece, but at this
The presence of micro spilehole can all influence the uniformity of tissue in the flux-cored wire of invention.Stomata is divided into two classes, Yi Leishi
Hydrogen blistering, one kind are carbon monoxide stomatas, and rich chromium cast iron welds existing stomata and is generally carbon monoxide stomata.Welding process is exactly
Chemical metallurgy process is welded, in the process, redox reaction is through always, and FeO activity is excessive, is also easy to produce CO gas
Hole, in this flux-cored wire formula, graphite and metal material are reducing substances, and carbonate (marble) and silicate are
Oxidising material reacts the chemical metallurgy of this flux-cored wire by selection and the suitable formula rate of selection and is able to satisfy
It is required that the chemical metallurgy reaction instantaneous oxidation reduction balance of welding process, not because the fusing point difference of a variety of materials is impacted, gas
Hole problem is addressed.
In order that the present invention can be more clearly and readily understood, below according to specific embodiment, to the present invention make into
One step detailed description.
Embodiment one
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 3%；
Fluorite 4%；
Silicate 2%；
Graphite 5%；
Crome metal 20%；
High carbon ferro-chrome 66%.
Contain in the step of preparation method of the flux-cored wire:
The powder of each component is sieved respectively；
By the powder drying after sieving；
It is by each component after drying according to corrresponding quality percentage ingredient, the medicinal powder prepared is sufficiently mixed with three-dimensional mixed powder machine
It closes, obtains mixture, keep dry until being packed into the medicinal powder bucket of forming production line；
When the powder feeding machine of U-shaped steel band logical overmolding production line, adds mixture into U-shaped steel band and flux-cored wire is made.
The flux-cored wire welding being prepared using the present embodiment, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
Embodiment two
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 7%；
Fluorite 8%；
Silicate 6%；
Graphite 9%；
Crome metal 10%；
High carbon ferro-chrome 60% amounts to 100%.
Contain in the step of preparation method of the flux-cored wire:
The powder of each component is sieved respectively；
By the powder drying after sieving；
It is by each component after drying according to corrresponding quality percentage ingredient, the medicinal powder prepared is sufficiently mixed with three-dimensional mixed powder machine
It closes, obtains mixture, keep dry until being packed into the medicinal powder bucket of forming production line；
When the powder feeding machine of U-shaped steel band logical overmolding production line, adds mixture into U-shaped steel band and flux-cored wire is made.
The flux-cored wire welding being prepared using the present embodiment, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
Embodiment three
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 5%；
Fluorite 6%；
Silicate 4%；
Graphite 7%；
Crome metal 15%；
High carbon ferro-chrome 63% amounts to 100%.
Contain in the step of preparation method of the flux-cored wire:
The powder of each component is sieved respectively；
By the powder drying after sieving；
It is by each component after drying according to corrresponding quality percentage ingredient, the medicinal powder prepared is sufficiently mixed with three-dimensional mixed powder machine
It closes, obtains mixture, keep dry until being packed into the medicinal powder bucket of forming production line；
When the powder feeding machine of U-shaped steel band logical overmolding production line, adds mixture into U-shaped steel band and flux-cored wire is made.
The flux-cored wire welding being prepared using the present embodiment, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
Comparative example one
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 3%；
Fluorite 4%；
Silicate 2%；
Graphite 1%；
Crome metal 20%；
High carbon ferro-chrome 70%.
The preparation method of the flux-cored wire of this comparative example is the same as example 1.
The flux-cored wire welding being prepared using this comparative example, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
Comparative example two
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 7%；
Fluorite 8%；
Silicate 6%；
Graphite 9%；
Crome metal 5%；
High carbon ferro-chrome 65% amounts to 100%.
The preparation method of the flux-cored wire of this comparative example is the same as example 1.
The flux-cored wire welding being prepared using this comparative example, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
Comparative example three
A kind of flux-cored wire, the component and each component mass percent that it contains are as follows:
Marble 5%；
Fluorite 8%；
Silicate 4%；
Graphite 8%；
Crome metal 20%；
High carbon ferro-chrome 55% amounts to 100%.
The preparation method of the flux-cored wire of this comparative example is the same as example 1.
The flux-cored wire welding being prepared using this comparative example, and measure the hardness and wear-resisting property of seam organization
And aesthetic measure is listed in Table 1 below.
As can be known from the above table, the seam organization welded using flux-cored wire prepared by the present invention, hardness are arrived in HRC63
HRC63.5, wearability improve, and weld seam is beautiful.
Particular embodiments described above, pair present invention solves the technical problem that, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection scope.
Claims (6)
1. a kind of flux-cored wire, it is characterised in that the component and each component mass percent that it contains are as follows:
Marble 3-7%；
Fluorite 4-8%；
Silicate 2-6%；
Graphite 5-9%；
Crome metal 10-20%；
High carbon ferro-chrome 60-70% amounts to 100%.
2. flux-cored wire according to claim 1, which is characterized in that
The chemical component and percentage composition of high carbon ferro-chrome are as follows: Cr:65-69%；C:6-10%；Si≤3%；S≤0.03%；P
≤ 0.03%.
3. flux-cored wire according to claim 1, which is characterized in that
Graphite is aquadag, and the chemical component and percentage composition of graphite are C >=99.5%, S≤0.02%, P≤0.02%.
4. flux-cored wire according to claim 1, which is characterized in that
The chemical component and percentage composition of fluorite are as follows: CaF2>=98%, Si≤1.5%, S≤0.03%, P≤0.03%.
5. flux-cored wire according to claim 1, which is characterized in that
In marble, CaCO3>=98.5wt%.
6. a kind of preparation method of the flux-cored wire as described in any one of claims 1 to 5, it is characterised in that method
Contain in step:
The powder of each component is sieved respectively；
By the powder drying after sieving；
Each component after drying is mixed according to corrresponding quality percentage ingredient, obtains mixture；
It adds mixture into U-shaped steel band and flux-cored wire is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465302.9A CN110253177A (en) | 2019-05-30 | 2019-05-30 | Flux-cored wire and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910465302.9A CN110253177A (en) | 2019-05-30 | 2019-05-30 | Flux-cored wire and preparation method thereof |
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| CN110253177A true CN110253177A (en) | 2019-09-20 |
Family
ID=67916001
Family Applications (1)
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| CN201910465302.9A Pending CN110253177A (en) | 2019-05-30 | 2019-05-30 | Flux-cored wire and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458652A (en) * | 2021-06-09 | 2021-10-01 | 株洲湘江电焊条有限公司 | Stainless steel flux-cored wire and preparation method thereof |
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| CN1864910A (en) * | 2006-06-23 | 2006-11-22 | 北京工业大学 | Highly abrasion-proof columbium carbide-chromium carbide composite surfacing welding rod |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113458652A (en) * | 2021-06-09 | 2021-10-01 | 株洲湘江电焊条有限公司 | Stainless steel flux-cored wire and preparation method thereof |
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Application publication date: 20190920 |