CN114571134B - Brazing material for brazing hard alloy cutter and preparation method thereof - Google Patents
Brazing material for brazing hard alloy cutter and preparation method thereof Download PDFInfo
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- CN114571134B CN114571134B CN202210227807.3A CN202210227807A CN114571134B CN 114571134 B CN114571134 B CN 114571134B CN 202210227807 A CN202210227807 A CN 202210227807A CN 114571134 B CN114571134 B CN 114571134B
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- hard alloy
- brazing material
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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
- B23K35/22—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
- B23K35/3053—Fe as the principal constituent
- B23K35/3093—Fe as the principal constituent with other elements as next major constituents
-
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention relates to the technical field of brazing materials, in particular to a brazing material for brazing a hard alloy cutter and a preparation method thereof. The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 50 to 70 parts of Fe, 10 to 20 parts of Zn, 3 to 6 parts of Mn, 5 to 10 parts of Ag, 3 to 5 parts of Ti, 4 to 5 parts of Mg, 2 to 5 parts of V, 2 to 3 parts of Mo, 1 to 3 parts of Si and 0.02 to 0.03 part of Nb0. The brazing material for brazing the hard alloy cutter has the advantages of simple preparation method, low preparation cost and convenience for large-scale popularization and application, and the hard alloy cutter joint obtained by using the brazing material has good mechanical properties.
Description
Technical Field
The invention relates to the technical field of brazing materials, in particular to a brazing material for brazing a hard alloy cutter and a preparation method thereof.
Background
The hard alloy cutter has excellent use performance, so that the hard alloy cutter is widely applied to machining production of turning, milling and the like of metal materials and parts, particularly to machining of materials such as alloy steel, chilled cast iron and the like, and only the hard alloy cutter can be used. Along with the rapid development of manufacturing industry, the requirements for the hard alloy cutter are huge, but the material difference between the hard alloy and the low carbon steel has larger welding stress after welding, and the hard alloy cutter is easy to break in the use process, thus preventing the application of the hard alloy cutter.
In order to solve the problems existing in the application of hard alloy cutters, the prior Chinese patent CN104191099A discloses WC particle reinforced composite solder for hard alloy brazing and a preparation method thereof.
And as shown in the prior Chinese patent CN111889917A, the composite solder for brazing the hard alloy cutter has good wettability and joint filling capability, good brazing process and high reliability of a brazed joint, but the content of noble metal silver in the composite solder is up to 37-39%, and the composite solder has higher preparation cost and more complicated preparation process.
Disclosure of Invention
The invention aims to provide a brazing material for brazing a hard alloy cutter and a preparation method thereof, so as to solve the defects of the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a brazing material for brazing a hard alloy cutter, which is prepared from the following raw materials in parts by weight: 50 to 70 parts of Fe, 10 to 20 parts of Zn, 3 to 6 parts of Mn, 5 to 10 parts of Ag, 3 to 5 parts of Ti, 4 to 5 parts of Mg, 2 to 5 parts of V, 2 to 3 parts of Mo, 1 to 3 parts of Si and 0.02 to 0.03 part of Nb.
Preferably, the brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 55-60 parts of Fe, 12-16 parts of Zn, 4-5 parts of Mn, 7-9 parts of Ag, 3-4 parts of Ti, 4.2-4.6 parts of Mg, 3-4 parts of V, 2.3-2.7 parts of Mo, 2-3 parts of Si and 0.021-0.026 part of Nb.
Preferably, the brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 60 parts of Fe, 15 parts of Zn, 4 parts of Mn, 8 parts of Ag, 3 parts of Ti, 4.5 parts of Mg, 4 parts of V, 2.5 parts of Mo, 2 parts of Si and 0.025 part of Nb.
The invention also provides a preparation method of the brazing material for brazing the hard alloy cutter, which comprises the steps of mixing Fe, zn, mn, ag, ti, mg, V, mo, si, nb, smelting, casting and rolling to obtain the brazing material for brazing the hard alloy cutter.
Preferably, the smelting adopts an intermediate frequency induction furnace.
Preferably, the rolling is to first perform hot rolling and then perform cold rolling; the temperature of the hot rolling is 550-560 ℃, and the time of the hot rolling is 20-30 min.
Preferably, the temperature of the cold rolling is 20-25 ℃.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
the invention adds V, the V further strengthens the nucleation capability of the inclusion before ferrite transformation, V and ferrite have low lattice mismatch degree, and can promote ferrite nucleation, but the pure V has low precipitation temperature (usually precipitation in the transformation process of 600-700 ℃) and small size (nano-scale), and the small-size particles precipitated at low temperature are difficult to be used as ferrite nuclear substrates. When submicron and micron-sized Mg and Ti exist in the brazing filler metal, V can be easily compounded and separated out on the inclusions at 900-1000 ℃ to jointly form submicron and micron-sized inclusions, so that the nucleation capability of the brazing filler metal is greatly enhanced, the ferrite nucleation rate is obviously increased, and the microstructure is fully refined. When the prepared brazing material is used for welding a hard alloy cutter, the joint of the hard alloy cutter has good mechanical property, and the maximum room-temperature shearing resistance of the brazing material can reach 398MPa.
The brazing material for brazing the hard alloy cutter has the advantages of simple preparation method, low preparation cost and convenience for large-scale popularization and application, and only contains a small amount of noble metal.
Detailed Description
The invention provides a brazing material for brazing a hard alloy cutter, which is prepared from the following raw materials in parts by weight: 50 to 70 parts of Fe, 10 to 20 parts of Zn, 3 to 6 parts of Mn, 5 to 10 parts of Ag, 3 to 5 parts of Ti, 4 to 5 parts of Mg, 2 to 5 parts of V, 2 to 3 parts of Mo, 1 to 3 parts of Si and 0.02 to 0.03 part of Nb.
Preferably, the material is prepared from the following raw materials in parts by weight: 55-60 parts of Fe, 12-16 parts of Zn, 4-5 parts of Mn, 7-9 parts of Ag, 3-4 parts of Ti, 4.2-4.6 parts of Mg, 3-4 parts of V, 2.3-2.7 parts of Mo, 2-3 parts of Si and 0.021-0.026 part of Nb.
Further preferably, the material is prepared from the following raw materials in parts by weight: 60 parts of Fe, 15 parts of Zn, 4 parts of Mn, 8 parts of Ag, 3 parts of Ti, 4.5 parts of Mg, 4 parts of V, 2.5 parts of Mo, 2 parts of Si and 0.025 part of Nb.
The invention also provides a preparation method of the brazing material for brazing the hard alloy cutter, which comprises the steps of mixing Fe, zn, mn, ag, ti, mg, V, mo, si, nb, smelting, casting and rolling to obtain the brazing material for brazing the hard alloy cutter.
In the invention, the smelting is preferably performed by adopting an intermediate frequency induction furnace.
In the invention, the rolling is first hot rolling and then cold rolling; the temperature of the hot rolling is preferably 550 to 560 ℃, more preferably 552 to 558 ℃, still more preferably 556 ℃, and the time of the hot rolling is preferably 20 to 30 minutes, more preferably 24 to 26 minutes, still more preferably 25 minutes.
In the present invention, the temperature of the cold rolling is preferably 20 to 25 ℃, and more preferably 23 to 25 ℃.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 52 parts of Fe, 13 parts of Zn, 3 parts of Mn, 5 parts of Ag, 3 parts of Ti, 4 parts of Mg, 2 parts of V, 2 parts of Mo, 1 part of Si and 0.02 part of Nb.
The preparation method comprises the following steps:
weighing Fe, zn, mn, ag, ti, mg, V, mo, si, nb according to the proportion, placing in an intermediate frequency induction furnace, rapidly heating and melting under argon atmosphere, and preserving heat for 10min at 950 ℃ after the materials are completely melted;
after the heat preservation is finished, casting to obtain an ingot, hot-rolling the ingot at 550 ℃ for 20min, and then cold-rolling the ingot at 20 ℃ to obtain the brazing material with the thickness of 0.3 mm.
The brazing temperature of the brazing filler metal can obtain a complete hard alloy cutter joint at 1100 ℃, the joint has good mechanical properties, and the room-temperature shearing resistance of the joint can reach 387MPa.
Example 2
The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 58 parts of Fe, 13 parts of Zn, 6 parts of Mn, 7 parts of Ag, 5 parts of Ti, 5 parts of Mg, 5 parts of V, 3 parts of Mo, 3 parts of Si and 0.03 part of Nb.
The preparation method comprises the following steps:
weighing Fe, zn, mn, ag, ti, mg, V, mo, si, nb according to the proportion, placing in an intermediate frequency induction furnace, rapidly heating and melting under argon atmosphere, and preserving heat for 12min at 960 ℃ after the materials are completely melted;
after the heat preservation is finished, casting to obtain an ingot, hot-rolling the ingot at 553 ℃ for 26min, and then cold-rolling the ingot at 25 ℃ to obtain a brazing material with the thickness of 0.4 mm.
The brazing temperature of the brazing filler metal can obtain a complete hard alloy cutter joint at 1100 ℃, the joint has good mechanical properties, and the room-temperature shearing resistance of the joint can reach 391MPa.
Example 3
The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 60 parts of Fe, 15 parts of Zn, 4 parts of Mn, 8 parts of Ag, 4 parts of Ti, 4.5 parts of Mg, 4 parts of V, 2.5 parts of Mo, 2 parts of Si and 0.025 part of Nb.
The preparation method comprises the following steps:
weighing Fe, zn, mn, ag, ti, mg, V, mo, si, nb according to the proportion, placing in an intermediate frequency induction furnace, rapidly heating and melting under argon atmosphere, and preserving heat for 12min at 940 ℃ after the materials are completely melted;
after the heat preservation is finished, casting to obtain an ingot, hot-rolling the ingot at 555 ℃ for 25min, and then cold-rolling the ingot at 25 ℃ to obtain the brazing material with the thickness of 0.5 mm.
The brazing temperature of the brazing filler metal can obtain a complete hard alloy cutter joint at 1100 ℃, the joint has good mechanical properties, and the room-temperature shearing resistance of the joint can reach 398MPa.
Example 4
The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 63 parts of Fe, 17 parts of Zn, 5 parts of Mn, 9 parts of Ag, 4 parts of Ti, 5 parts of Mg, 4 parts of V, 2 parts of Mo, 1 part of Si and 0.02 part of Nb.
The preparation method comprises the following steps:
weighing Fe, zn, mn, ag, ti, mg, V, mo, si, nb according to the proportion, placing in an intermediate frequency induction furnace, rapidly heating and melting under argon atmosphere, and preserving heat for 14min at 950 ℃ after the materials are completely melted;
after the heat preservation is finished, casting to obtain an ingot, hot-rolling the ingot at 558 ℃ for 30min, and then cold-rolling the ingot at 24 ℃ to obtain the brazing material with the thickness of 0.6 mm.
The brazing temperature of the brazing filler metal can obtain a complete hard alloy cutter joint at 1100 ℃, the joint has good mechanical properties, and the room-temperature shearing resistance of the joint can reach 389MPa.
Example 5
The brazing material for brazing the hard alloy cutter is prepared from the following raw materials in parts by weight: 66 parts of Fe, 20 parts of Zn, 6 parts of Mn, 10 parts of Ag, 5 parts of Ti, 5 parts of Mg, 5 parts of V, 3 parts of Mo, 2 parts of Si and 0.022 part of Nb.
The preparation method comprises the following steps:
weighing Fe, zn, mn, ag, ti, mg, V, mo, si, nb according to the proportion, placing in an intermediate frequency induction furnace, rapidly heating and melting under argon atmosphere, and preserving heat for 13min at 950 ℃ after the materials are completely melted;
after the heat preservation is finished, casting to obtain an ingot, hot-rolling the ingot at 560 ℃ for 30min, and then cold-rolling the ingot at 23 ℃ to obtain the brazing material with the thickness of 0.6 mm.
The brazing temperature of the brazing filler metal can obtain a complete hard alloy cutter joint at 1100 ℃, the joint has good mechanical properties, and the room-temperature shearing resistance of the joint can reach 392MPa.
Comparative example 1
Comparative example 1 differs from example 3 in that no V component was contained, and the resulting braze gave a cemented carbide tool joint having a room temperature shear performance of 212MPa at 1100 ℃.
Comparative example 2
Comparative example 2 differs from example 3 in that it does not contain Mg component, and the resulting solder gives a cemented carbide tool joint having a room temperature shear performance of 245MPa at 1100 ℃.
Comparative example 3
Comparative example 3 differs from example 3 in that the Ti component was not contained, and the resulting brazing filler metal had a brazing temperature of 1100 ℃ to give a cemented carbide tool joint having a room temperature shear performance of 242MPa.
According to the embodiment, the brazing material for brazing the hard alloy cutter and the preparation method thereof are provided, the preparation method of the brazing material for brazing the hard alloy cutter is simple, only contains a small amount of noble metal, the preparation cost is low, and the maximum room-temperature shearing resistance can reach 398MPa.
Furthermore, as is evident from comparative examples 1 to 3 and example 3, the V, mg, ti components have an important influence on the mechanical properties of the brazing material, and when any one of these three components is not contained, the mechanical properties are significantly reduced.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (7)
1. The brazing material for brazing the hard alloy cutter is characterized by being prepared from the following raw materials in parts by weight: 50 to 70 parts of Fe, 10 to 20 parts of Zn, 3 to 6 parts of Mn, 5 to 10 parts of Ag, 3 to 5 parts of Ti, 4 to 5 parts of Mg, 2 to 5 parts of V, 2 to 3 parts of Mo, 1 to 3 parts of Si and 0.02 to 0.03 part of Nb.
2. The brazing material for brazing of the hard alloy cutter according to claim 1, wherein the brazing material is prepared from the following raw materials in parts by weight: 55-60 parts of Fe, 12-16 parts of Zn, 4-5 parts of Mn, 7-9 parts of Ag, 3-4 parts of Ti, 4.2-4.6 parts of Mg, 3-4 parts of V, 2.3-2.7 parts of Mo, 2-3 parts of Si and 0.021-0.026 part of Nb.
3. The brazing material for brazing of cemented carbide tools according to claim 1 or 2, characterized by being prepared from the following raw materials in parts by weight: 60 parts of Fe, 15 parts of Zn, 4 parts of Mn, 8 parts of Ag, 3 parts of Ti, 4.5 parts of Mg, 4 parts of V, 2.5 parts of Mo, 2 parts of Si and 0.025 part of Nb.
4. A method of producing a brazing material for brazing cemented carbide tools according to any one of claims 1 to 3, characterized in that Fe, zn, mn, ag, ti, mg, V, mo, si, nb is mixed and then melted, cast and rolled to obtain the brazing material for brazing cemented carbide tools.
5. The method for preparing the brazing material for brazing the hard alloy cutter according to claim 4, wherein the medium frequency induction furnace is adopted for smelting.
6. The method for preparing a brazing material for brazing a cemented carbide tool according to claim 4 or 5, wherein the rolling is performed by first hot rolling and then cold rolling; the temperature of the hot rolling is 550-560 ℃, and the time of the hot rolling is 20-30 min.
7. The method for preparing a brazing material for brazing a cemented carbide tool according to claim 6, wherein the cold rolling is performed at a temperature of 20 to 25 ℃.
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| CN114571134B true CN114571134B (en) | 2023-04-25 |
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Citations (9)
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|---|---|---|---|---|
| GB1332241A (en) * | 1971-05-14 | 1973-10-03 | Pk Bjuro Mekh | Hard solder for high-temperature brazing of constructional materials |
| CN1507975A (en) * | 2002-11-26 | 2004-06-30 | 大连铁道学院 | WC-Co hard alloy and steel-tungsten argon arc welding material and production process thereof |
| WO2011043535A1 (en) * | 2009-10-07 | 2011-04-14 | 전북대학교산학협력단 | Wc-fe-based hard metal-brazed material, and method for preparing same |
| CN106413977A (en) * | 2014-06-11 | 2017-02-15 | 株式会社神户制钢所 | Buildup welded body |
| CN106514050A (en) * | 2016-12-29 | 2017-03-22 | 安徽华众焊业有限公司 | Brass solder and preparation method thereof |
| CN107598407A (en) * | 2017-11-09 | 2018-01-19 | 湖州高恒电梯配件有限公司 | A kind of heap welding method |
| CN111085796A (en) * | 2019-12-13 | 2020-05-01 | 西安交通大学 | Fe-based multielement active high-temperature brazing filler metal for carbon fiber reinforced ceramic matrix composite |
| CN111889917A (en) * | 2020-07-17 | 2020-11-06 | 昆明贵研新材料科技有限公司 | Composite brazing filler metal for brazing hard alloy cutter and preparation method thereof |
| CN113828957A (en) * | 2021-08-12 | 2021-12-24 | 郑州机械研究所有限公司 | Composite brazing filler metal for hard alloy brazing, preparation method thereof and application of composite brazing filler metal in pick brazing |
-
2022
- 2022-03-08 CN CN202210227807.3A patent/CN114571134B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1332241A (en) * | 1971-05-14 | 1973-10-03 | Pk Bjuro Mekh | Hard solder for high-temperature brazing of constructional materials |
| CN1507975A (en) * | 2002-11-26 | 2004-06-30 | 大连铁道学院 | WC-Co hard alloy and steel-tungsten argon arc welding material and production process thereof |
| WO2011043535A1 (en) * | 2009-10-07 | 2011-04-14 | 전북대학교산학협력단 | Wc-fe-based hard metal-brazed material, and method for preparing same |
| CN106413977A (en) * | 2014-06-11 | 2017-02-15 | 株式会社神户制钢所 | Buildup welded body |
| CN106514050A (en) * | 2016-12-29 | 2017-03-22 | 安徽华众焊业有限公司 | Brass solder and preparation method thereof |
| CN107598407A (en) * | 2017-11-09 | 2018-01-19 | 湖州高恒电梯配件有限公司 | A kind of heap welding method |
| CN111085796A (en) * | 2019-12-13 | 2020-05-01 | 西安交通大学 | Fe-based multielement active high-temperature brazing filler metal for carbon fiber reinforced ceramic matrix composite |
| CN111889917A (en) * | 2020-07-17 | 2020-11-06 | 昆明贵研新材料科技有限公司 | Composite brazing filler metal for brazing hard alloy cutter and preparation method thereof |
| CN113828957A (en) * | 2021-08-12 | 2021-12-24 | 郑州机械研究所有限公司 | Composite brazing filler metal for hard alloy brazing, preparation method thereof and application of composite brazing filler metal in pick brazing |
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