CN109848610A - A kind of micro- slag gas-shielded flux-cored wire slag system and preparation method thereof - Google Patents
A kind of micro- slag gas-shielded flux-cored wire slag system and preparation method thereof Download PDFInfo
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- CN109848610A CN109848610A CN201910212934.4A CN201910212934A CN109848610A CN 109848610 A CN109848610 A CN 109848610A CN 201910212934 A CN201910212934 A CN 201910212934A CN 109848610 A CN109848610 A CN 109848610A
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Abstract
The invention discloses a kind of micro- slag gas-shielded flux-cored wire slag systems.The slag system includes rutile 40~48%, potassium feldspar 18~30%, marble 18~22% and fluorite 10~15% by weight percentage, and granularity is 80-200 mesh, wherein the TiO of rutile2>=95%；The SiO of potassium feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；Marmorean CaCO3>=92%；The CaF of fluorite2>=92%.The mouldability of the covering performance of slag system disclosed by the invention not only slag, the stability of electric arc, splashing and weld seam is fine, and does not find the welding defects such as stomata, slag inclusion, lack of penetration in deposited metal.Slag is seldom when welding, and the quantity of slag is only a quarter of more slag welding wires, and strike primary slag at least can be reduced downtime, be improved the welding efficiency of robot with 4 layers of sequential welding or more.Meanwhile the processing performance and mechanical property of the few wlding that do not have an impact of slag, increasing material, to remanufacture die life also substantially suitable with more slag welding wire weld mold service life, can promote and apply in production completely.
Description
Technical field
The present invention relates to increase material re-manufacturing technology field, and in particular to a kind of to increase micro- slag gas guarantor that material remanufactures for mold
Protect flux-cored wire slag system and preparation method thereof.
Background technique
Increase material and remanufacture and refers to and melted the alloy material with certain Special use performance requirement with the shape using certain heat source
It applies in parent (workpiece) material surface or the simple welding method for making failure part restore original shape or size.Increase material to remanufacture
Technology is with a wide range of applications in mould repair or manufacturing field, at present 50% or more the hot-work die in forging molding field
It is to be completed on scrapping old die matrix by reproducing method using increasing material method.Welding material used in the present invention is mainly used
In the hot-work die of the materials manufacture such as manufacture 5CrMnMo, 5CrNiMo, H13,3Cr2W8 and 45Cr2NiMoVSi.Welding material
The trade mark has RMD535, RMD545, RMD655, RMD752 etc..Originally these materials are mainly more slags, were mainly applicable in manual welding narrow bars
Part, when above-mentioned trade mark material is remanufactured field for increasing material, slag system needs to adjust.The present invention is exactly in above-mentioned requirements or background
What lower research was completed.
Welding slag has three big effects: mechanical protection effect, Metallurgical processing effect and improvement processing performance effect.General feelings
Under condition, in flux-cored wire after slag additional amount is reduced, protecting effect can weaken in succession, and other effects may also change accordingly.For
This, needs to research and develop new wlding slag former, and after reducing because of slag system weight, wlding service performance is reduced.
Summary of the invention
Increase the slag slag that material remanufactures micro- slag gas-shielded flux-cored wire for mold the purpose of the present invention is to provide a kind of
System, makes original manual build up welding remanufacture field with the increasing material that more slag welding wires can be used in robot welding.
In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions:
A kind of micro- slag gas-shielded flux-cored wire slag system, including rutile 40~48%, potassium feldspar by weight percentage
18~30%, marble 18~22% and fluorite 10~15%, granularity are 80-200 mesh.
Further, the TiO of rutile2>=95%；The SiO of potassium feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；
Marmorean CaCO3>=92%；The CaF of fluorite2>=92%.
Further, it is greater than 100 mesh powder≤10%.
Further, including rutile 44% by weight percentage；Potassium feldspar 24%；Marble 20%；Fluorite
12%.
Further, four kinds of rutile, potassium feldspar, marble and fluorite materials are attached separately in different vessels, 400
Heating, drying keeps the temperature 4~6 hours and then mixes in~600 degree of electric furnaces, is placed in blender and stirs 40~60 minutes, stirs evenly
Afterwards to obtain the final product.
Further, four kinds of rutile, potassium feldspar, marble and fluorite materials are attached separately in different vessels, 500
It spends heating, drying in electric furnace and keeps the temperature 5 hours and then mix, be placed in blender and stir 50 minutes, after mixing evenly to obtain the final product.
Further, the mass fraction for the slag system being added when preparing flux-cored wire is 3~6%.Preferably, the quality of slag system
Score is 4%, and the quantity of other alloying constituents is 96%, can produce medicine core weldering on flux-cored wire Preparation equipment after mixing
Silk.
The beneficial effects obtained by the present invention are as follows being: the covering performance of slag system of the invention not only slag, the stability of electric arc,
The mouldability of splashing and weld seam is fine, and does not find the welding defects such as stomata, slag inclusion, lack of penetration in deposited metal；Micro- slag
The slag of gas-shielded flux-cored wire is seldom, and less than a quarter of more slag welding wires, one layer of need of original every weldering of deposited metal strike the quantity of slag
Slag is primary, and striking primary slag now at least can be 4 layer with sequential welding, this greatly reduces downtime, improves the welding of robot
Efficiency.And the processing performance and mechanical property of the few wlding that do not have an impact of slag, increase material and remanufacture die life also substantially quite,
Therefore it can promote and apply in production completely.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1
A kind of micro- slag gas-shielded flux-cored wire slag system, including by weight percentage rutile 40%, potassium feldspar 23%,
Marble 22% and fluorite 15%, granularity are 80-200 mesh, are greater than 100 mesh powder≤10%.
The TiO of rutile2>=95%；The SiO of potassium feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；It is marmorean
CaCO3>=92%；The CaF of fluorite2>=92%.
When production, four kinds of rutile, potassium feldspar, marble and fluorite materials are attached separately in different vessels, at 500 degree
Heating, drying keeps the temperature 5 hours and then mixes in electric furnace, is placed in blender and stirs 50 minutes, after mixing evenly to obtain the final product.
Embodiment 2
A kind of micro- slag gas-shielded flux-cored wire slag system, including by weight percentage rutile 48%, potassium feldspar 24%,
Marble 18% and fluorite 10%, granularity are 80-200 mesh, are greater than 100 mesh powder≤10%.The TiO of rutile2≥
95%；The SiO of potassium feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；Marmorean CaCO3>=92%；The CaF of fluorite2
>=92%.Further, it is greater than 100 mesh powder≤10%.
When production, four kinds of rutile, potassium feldspar, marble and fluorite materials are attached separately in different vessels, at 500 degree
Heating, drying keeps the temperature 5 hours and then mixes in electric furnace, is placed in blender and stirs 50 minutes, after mixing evenly to obtain the final product.
Embodiment 3
A kind of micro- slag gas-shielded flux-cored wire slag system, including including rutile 44% by weight percentage；Potassium feldspar
24%；Marble 20%；Fluorite 12%, granularity are 80-200 mesh, are greater than 100 mesh powder≤10%.The TiO of rutile2
>=95%；The SiO of potassium feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；Marmorean CaCO3>=92%；Fluorite
CaF2>=92%.
When production, four kinds of rutile, potassium feldspar, marble and fluorite materials are attached separately in different vessels, at 500 degree
Heating, drying keeps the temperature 5 hours and then mixes in electric furnace, is placed in blender and stirs 50 minutes, after mixing evenly to obtain the final product.
The slag system of embodiment 1,2,3 is used to make welding wire according to 4% additive amount, wlding chemical component is shown in Table 1；
1 resurfacing welding material RMD650 chemical component of table
| C | Cr | Mo | Ni | Fe |
| 0.30% | 10% | 2.5% | 2% | Surplus |
Table 2 is respectively the RMD650 welding wire deposited metal hardness number conversion chart containing example 1,2,3 and more than 20% slag:
Table two, the RMD650 welding wire deposited metal hardness number conversion chart of difference example 1,2,3 and 20% slag:
It is compared as it can be seen that preparing micro- slag wlding using present example 3 (slag system) with former more slag craft wldings, deposited metal is hard
Degree influences less, and two kinds of material properties are substantially suitable in other words.
The present invention also further uses the different RMD650 welding wire of above-mentioned slag content, and robot and artificial increasing is respectively adopted
Material has manufactured some preceding bridge molds, and die life and slag coverage effect are shown in Table four:
3 RMD650 welding wire built-up welding of table remanufactures mold and forges service life and slag coverage effect
As it can be seen that preparing micro- slag wlding weld mold service life not less than former more slag welding wires welderings using present example 3 (slag system)
Die life is connect, therefore can be promoted and applied in production completely.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (7)
1. a kind of micro- slag gas-shielded flux-cored wire slag system, which is characterized in that including rutile 40 by weight percentage~
48%, potassium feldspar 18~30%, marble 18~22% and fluorite 10~15%, granularity are 80-200 mesh.
2. micro- slag gas-shielded flux-cored wire slag system as described in claim 1, which is characterized in that the TiO of rutile2>=95%；Potassium
The SiO of feldspar2>=62%, Al2O3>=23%, K2O+Na2O≥2；Marmorean CaCO3>=92%；The CaF of fluorite2>=92%.
3. micro- slag gas-shielded flux-cored wire slag system as described in claim 1, which is characterized in that be greater than 100 mesh powders≤
10%.
4. micro- slag gas-shielded flux-cored wire slag system as described in claim 1, which is characterized in that including by weight percentage
Rutile 44%；Potassium feldspar 24%；Marble 20% and fluorite 12%.
5. the preparation method of micro- slag gas-shielded flux-cored wire slag system described in claim 1, which is characterized in that by rutile, potassium
Four kinds of feldspar, marble and fluorite materials are attached separately in different vessels, in 400~600 degree of electric furnaces heating, drying heat preservation 4~
Then it mixes within 6 hours, is placed in blender and stirs 40~60 minutes, after mixing evenly to obtain the final product.
6. the preparation method of micro- slag gas-shielded flux-cored wire slag system described in claim 5, which is characterized in that by rutile, potassium
Four kinds of feldspar, marble and fluorite materials are attached separately in different vessels, and heating, drying keeps the temperature 5 hours so in 500 degree of electric furnaces
After mix, be placed in blender and stir 50 minutes, after mixing evenly to obtain the final product.
7. the application of slag gas-shielded flux-cored wire slag system described in claim 1, which is characterized in that addition when preparing flux-cored wire
Slag system mass fraction be 3~6%.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166419C2 (en) * | 1999-05-20 | 2001-05-10 | Государственное унитарное предприятие Центральный научно-исследовательский институт конструкционных материалов "Прометей" | Composition of powder wire |
| CN102416531A (en) * | 2011-04-27 | 2012-04-18 | 杜荣臻 | Slag-free surfacing welding rod |
| CN102416534A (en) * | 2011-04-27 | 2012-04-18 | 杜荣臻 | Gas-protected surfacing flux-cored welding wire for surfacing |
| CN102974956A (en) * | 2012-11-29 | 2013-03-20 | 武汉铁锚焊接材料股份有限公司 | Surfacing welding flux-cored wire |
| CN104942477A (en) * | 2015-07-23 | 2015-09-30 | 宋焯 | Wear-resistant and corrosion-resistant surfacing material |
| CN105057926A (en) * | 2015-09-22 | 2015-11-18 | 山东大学 | Special flux-cored wire for hot-working die repairing surfacing |
| CN106077992A (en) * | 2016-07-07 | 2016-11-09 | 南京航空航天大学 | A kind of mould electric arc that is applicable to increases micro-slag gas-shielded flux-cored wire that material manufactures |
-
2019
- 2019-03-20 CN CN201910212934.4A patent/CN109848610A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2166419C2 (en) * | 1999-05-20 | 2001-05-10 | Государственное унитарное предприятие Центральный научно-исследовательский институт конструкционных материалов "Прометей" | Composition of powder wire |
| CN102416531A (en) * | 2011-04-27 | 2012-04-18 | 杜荣臻 | Slag-free surfacing welding rod |
| CN102416534A (en) * | 2011-04-27 | 2012-04-18 | 杜荣臻 | Gas-protected surfacing flux-cored welding wire for surfacing |
| CN102974956A (en) * | 2012-11-29 | 2013-03-20 | 武汉铁锚焊接材料股份有限公司 | Surfacing welding flux-cored wire |
| CN104942477A (en) * | 2015-07-23 | 2015-09-30 | 宋焯 | Wear-resistant and corrosion-resistant surfacing material |
| CN105057926A (en) * | 2015-09-22 | 2015-11-18 | 山东大学 | Special flux-cored wire for hot-working die repairing surfacing |
| CN106077992A (en) * | 2016-07-07 | 2016-11-09 | 南京航空航天大学 | A kind of mould electric arc that is applicable to increases micro-slag gas-shielded flux-cored wire that material manufactures |
Non-Patent Citations (1)
| Title |
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| 董定元等: "《焊工实用技术问答》", 31 December 1994 * |
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Application publication date: 20190607 |