CN102248320B - Stannum-based composite babbit metal and method for preparing welding wire - Google Patents
Stannum-based composite babbit metal and method for preparing welding wire Download PDFInfo
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- CN102248320B CN102248320B CN 201110187202 CN201110187202A CN102248320B CN 102248320 B CN102248320 B CN 102248320B CN 201110187202 CN201110187202 CN 201110187202 CN 201110187202 A CN201110187202 A CN 201110187202A CN 102248320 B CN102248320 B CN 102248320B
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Abstract
The invention relates to stannum-based composite babbit metal. The stannum-based composite babbit metal comprises 1 to 10 weight percent of magnetic particles and the balance of babbit metal matrix, wherein the babbit metal matrix comprises 5 to 13 weight percent of Sb, 1 to 10 weight percent of Cu and the balance of Sn. A method for preparing a welding wire from the composite babbit metal comprises the following steps of: mixing babbit metal powder and the magnetic particles uniformly; heating the mixture to 450 to 500 DEG C under the protection of a soldering flux; stirring and casting in the magnetic field; and preparing a wire material of 0.1 to 3 mm from the alloy by an extruding and drawing process. The babbit metal powder is prepared by the following steps of: mixing 5 to 13 weight percent of Sb, 1 to 10 weight percent of Cu and the balance of Sn; heating the mixture to a melting state; and under the protection of nitrogen, preparing babbit metal powder from the molten liquid by using ultrasonic atomization equipment. The stannum-based composite babbit metal refines alloy crystal particles, improves wear resistance and obviously improves wettability and weldability on a steel matrix under the action of magnetic field.
Description
Technical field
The invention belongs to high-abrasive material and field of welding material, particularly a kind of compound babbit welding wire of high abrasion.
Background technology
High-abrasive material is the core of field of new, and the development of new and high technology is played important promotion and supporting role, and in global new material research field, high-abrasive material accounts for 85%.The alloy that uses as high-abrasive material mainly comprises acid bronze alloy, zinc-containing alloy, acieral, lead-containing alloy and kamash alloy etc.In these materials, kamash alloy, acieral use at most.
Tin-base babbit has the antifriction characteristic, is the high-abrasive material that is widely known by the people most, is suitable for the wear parts that rotates relative to the soft axle.Compare with other high-abrasive material, have better adaptability and embedability, be widely used in bearing shell, bearing, axle bush, the axle sleeve of big machinery main shaft.Yet the antifriction alloy of this application quantity maximum is the Shortcomings part still, is mainly reflected in: the anti-wear performance of alloy does not still reach requirement in the application scenario of some high stabilities and high reliability request; Owing to containing Sb and Cu in alloy, these elements are to exist with the higher intermetallic compound form of fragility in alloy, cause the Plasticity Decreasing of alloy, thereby are difficult for carrying out pressure processing; On some high load components, the Combined Machining Technology of babbit and other material becomes a key issue.In recent years, the research aspect babbit both at home and abroad presented the research trends that make new advances, and comprised and improved alloy, particularly by adding reinforcing particle and fiber to form composite, further put forward heavy alloyed mechanical property; Explore new material processing method, particularly adopt the method for arc-welding and soldering.
The referenced patent 1(patent No.: CN86105731) disclose a kind of fiber reinforced babbit alloy and manufacture method.The bearing shell that this composite is made has higher room temperature strength and elevated temperature strength, and anti-wear performance is enhanced about more than once.
The referenced patent 2(patent No.: CN200610118186.6) disclose a kind of method of using the babbit silk to carry out the tungsten electrode noble gas protecting soldering, deposited joint interface is smooth in the surface of part as packing material with babbit, and bond strength is high.
The referenced patent 3(patent No.: CN02142912) disclose a kind of content that adds not higher than 0.5% Fe, Co, the Sn-Cu base lead-free solder of Ni element, the effect of three kinds of elements is to have improved the mechanical property of scolder and reliability.
Referenced patent 4(CN200510013430) disclose a kind of Zirconium oxide nano grain reinforced composite Sn-Ag welding material and preparation method thereof, improved hardness and the reliability of tin-silver solder with zirconia as wild phase.
In sum, tin-base babbit is mainly fiber reinforcement in high-abrasive material field extensive application for alloy improvement method.Add wild phase that report is also arranged in tin-base lead-free solder in the particle mode, particle is mainly used to improve mechanical property, and this type of report is not also arranged in babbit.
Summary of the invention
For wearability, wetability and the deformation processing performance that improves tin-base babbit, the present invention proposes the compound babbit of a kind of tinbase and prepare the method for welding wire.
The present invention adopts following technical scheme:
The compound babbit of a kind of tinbase comprises babbit matrix and magnetic-particle, wherein, the percentage by weight of magnetic-particle is 1～10%, and surplus is the babbit matrix, and described babbit matrix comprises: Sb, Cu and Sn, its percentage by weight: Sb 5-13%, Cu 1-10%, Sn surplus.
A kind of compound babbit prepares the method for welding wire, and babbit powder and magnetic-particle are mixed, and is heated to 450-500 ℃ under the scaling powder protection, and stir under magnetic field and casting, then alloy is prepared into the silk material of 0.1-3mm by extruding, drawing process,
Described babbit powder adopts following methods to make:
Be Sb 5-13% with Sb, Cu and Sn according to percentage by weight, Cu 1-10%, the ratio of Sn surplus is mixed and is heated to molten condition, under nitrogen protection, uses ultrasonic atomizatio equipment that liquation is made the babbit powder.
A kind of using method of compound babbit welding wire applies magnetic field on the steel weldment, improve the babbit scolder in welding wettability of the surface and solderability when carrying out built-up welding.
The preparation method of above-mentioned tin-base babbit welding wire is as follows: first make the babbit powder; mix with magnetic-particle; be heated to 450-500 ℃ under the scaling powder protection, stir under magnetic field and casting, then alloy is prepared into the silk material of 0.1-3mm by extruding, drawing process.Magnetic-particle plays vital effect in the welding wire preparation.As nucleating agent, stir under magnetic fields when casting due to magnetic-particle, cause the crystallization of formation constantly broken apart, thereby increased nucleation rate, crystal grain thinning, the alloy of formation has good plasticity, has therefore improved the fracture of wire problem that alloy causes because plasticity is bad in drawing process.
Adding of magnetic-particle can also improve the processing performance of babbit welding wire when built-up welding, particularly improves wetability and the solderability of welding wire.Apply certain magnetic field at surface of steel workpiece to be welded, scolder is forming adhesive force under due to the effect of magnetic-particle at magnetic field force after fusing, thereby has improved wetability and the solderability of scolder.
Magnetic-particle can further improve the wearability of babbit overlay cladding.Because magnetic-particle is also a kind of hard phase, play the effect of supporting particle in matrix, can effectively reduce the skin-friction coefficient of babbit, improve the wearability of overlay cladding.
Description of drawings
Fig. 1 is the metallographic microstructure (polishing attitude) of 2%Fe particle babbit.
Fig. 2 is the metallographic microstructure (corrosion attitude) of babbit
Fig. 3 is the metallographic microstructure (corrosion attitude) that contains 4%Fe particle babbit.
Fig. 4 is that magnetic field is on the impact of tin-base babbit.
Fig. 5 is magnetic field on the impact of the tin-base babbit that contains magnetic-particle.
Fig. 6 is the wear volume comparison diagram of different content Fe particle babbit.
The specific embodiment
Embodiment 1
The compound babbit of a kind of tinbase comprises babbit matrix and magnetic-particle, wherein, the percentage by weight of magnetic-particle is 1～10%, and surplus is the babbit matrix, and described babbit matrix comprises: Sb, Cu and Sn, its percentage by weight: Sb 5-13%, Cu 1-10%, Sn surplus.Described magnetic-particle comprises Fe, Co, Ni, Fe at least
2O
3, Fe
3O
4A kind of in particle, the particle diameter of described magnetic-particle is 0.05～50 μ m.In the present embodiment, the percentage by weight of magnetic-particle is 1%, 6% or 10%; In the babbit matrix, the percentage by weight of Sb, Cu and Sn is Sb 5%, Cu 1%, Sn surplus, Sb 7%, Cu 4%, Sn surplus, perhaps, Sb13%, Cu 10%, Sn surplus; Described magnetic-particle can be Fe, Co, Ni, Fe
2O
3, Fe
3O
4A kind of in particle can be also Fe, Co, Ni, Fe
2O
3, Fe
3O
4Any combination of particle; The particle diameter of magnetic-particle is 0.05,15 or 50 μ m.
The compound babbit of a kind of tinbase, comprise babbit matrix and magnetic-particle, wherein, the percentage by weight of magnetic-particle is 2%, surplus is the babbit matrix, the described babbit matrix trade mark is ZCHSnSb11-6, and described magnetic-particle is Fe, and the particle diameter of described magnetic-particle is 30 μ m.With reference to Fig. 1, be uniform-distribution with dark Fe particle on the babbit matrix of light color.With reference to Fig. 6, containing the babbit of 2%Fe particle compares with the babbit that does not contain the Fe particle, wear volume has reduced 14.3%, wearability improves, wear test is carried out on MM-200 type abrasion tester, adopts GCr15 steel emery wheel oil abrasion, load 300N, line of slide speed 1m/s, wearing-in period 20min.
Embodiment 3
The compound babbit of a kind of tinbase, comprise babbit matrix and magnetic-particle, wherein, the percentage by weight of magnetic-particle is 4%, surplus is the babbit matrix, the described babbit matrix trade mark is ZCHSnSb11-6, and described magnetic-particle is Fe, and the particle diameter of described magnetic-particle is 30 μ m.With reference to Fig. 2, in the babbit tissue, black needle-like or stellate crystals are ε (Cu6Sn5) phase, and thick and skewness with reference to Fig. 3, contains in the babbit of 4%Fe particle, and black ε (Cu6Sn5) is refinement and being evenly distributed to some extent mutually.With reference to Fig. 4, when tin-base babbit was wetting on iron plate, magnetic field was to babbit generation effect, with reference to Fig. 5, contained the tin-base babbit of 4%Fe particle when wetting on iron plate, and after magnetic fields, spreading area increases, and wetability improves.With reference to Fig. 6, containing the babbit of 4%Fe particle compares with the babbit that does not contain the Fe particle, wear volume has reduced 22.9%, wearability improves, wear test is carried out on MM-200 type abrasion tester, adopts GCr15 steel emery wheel oil abrasion, load 300N, line of slide speed 1m/s, wearing-in period 20min.
A kind of method of utilizing compound babbit to prepare welding wire; babbit powder and magnetic-particle are mixed, be heated to 450-500 ℃ under the scaling powder protection, stir under magnetic field and casting; again alloy is prepared into the silk material of 0.1-3mm by extruding, drawing process
Described babbit powder adopts following methods to make:
Be Sb 5-13% with Sb, Cu and Sn according to percentage by weight, Cu 1-10%, the ratio of Sn surplus is mixed and is heated to molten condition, under nitrogen protection, uses ultrasonic atomizatio equipment that liquation is made the babbit powder, and scaling powder is rosin.
Embodiment 5
A kind of using method of compound babbit welding wire applies magnetic field on the steel weldment, improve the babbit scolder in welding wettability of the surface and solderability when carrying out built-up welding.
Claims (2)
1. method of utilizing compound babbit to prepare welding wire; it is characterized in that; babbit powder and magnetic-particle are mixed; be heated to 450-500 ℃ under the scaling powder protection, stir under magnetic field and casting, then alloy is prepared into the silk material of 0.1-3mm by extruding, drawing process; wherein; the percentage by weight of magnetic-particle is 1～10%, and surplus is the babbit matrix
Described babbit powder adopts following methods to make:
Be Sb 5-13% with Sb, Cu and Sn according to percentage by weight, Cu 1-10%, the ratio of Sn surplus is mixed and is heated to molten condition, under nitrogen protection, uses ultrasonic atomizatio equipment that liquation is made the babbit powder.
2. compound babbit according to claim 1 prepares the method for welding wire, it is characterized in that, scaling powder is rosin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110187202 CN102248320B (en) | 2011-07-06 | 2011-07-06 | Stannum-based composite babbit metal and method for preparing welding wire |
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| CN 201110187202 CN102248320B (en) | 2011-07-06 | 2011-07-06 | Stannum-based composite babbit metal and method for preparing welding wire |
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| CN102248320B true CN102248320B (en) | 2013-06-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598603A (en) * | 2016-03-18 | 2016-05-25 | 江门市上庆自动化设备有限公司 | Method for adding scaling powder into solder |
| CN105734338B (en) * | 2016-03-22 | 2017-11-24 | 苏州虎伏新材料科技有限公司 | A kind of tin-base babbit and preparation method thereof |
| CN107877034B (en) * | 2017-10-24 | 2020-11-24 | 杭州华光焊接新材料股份有限公司 | Nano magnetic metal composite soldering paste and preparation method thereof |
| CN107803501B (en) * | 2017-11-18 | 2020-01-07 | 北京科技大学 | Laser additive manufacturing method of tin-based babbit alloy component |
| CN108856721B (en) * | 2018-07-18 | 2021-07-06 | 申科滑动轴承股份有限公司 | Preparation process of three-dimensional printing composite material based on micron-sized tin-based babbitt metal powder |
| CN111471889B (en) * | 2020-04-14 | 2021-01-05 | 中机智能装备创新研究院(宁波)有限公司 | Tin-based babbitt metal and preparation method and application thereof |
| CN111992922B (en) * | 2020-08-26 | 2022-03-29 | 郑州机械研究所有限公司 | Flux-cored solder, preparation method thereof and powder breaking rate detection system of flux-cored solder |
| CN112719493B (en) * | 2020-12-23 | 2022-06-10 | 新疆大全新能源股份有限公司 | Process for welding babbit metal on bearing bush |
| CN117483913B (en) * | 2023-12-28 | 2024-04-09 | 中国机械总院集团宁波智能机床研究院有限公司 | Bimetal bushing and preparation method and application thereof |
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| CN1369347A (en) * | 2002-03-22 | 2002-09-18 | 北京工业大学 | Magnetically controlled mixed gas protected consumable-electrode weld (MAG) with high deposition coefficient and its special equipment |
| CN1880493A (en) * | 2005-06-13 | 2006-12-20 | 上海飞轮有色冶炼厂 | Tin-base bearing alloy and method for preparing same |
| CN101413542A (en) * | 2007-09-14 | 2009-04-22 | 卓轮Bhw滑动轴承两合公司 | Sliding element and method for its production |
| CN101960029A (en) * | 2008-03-03 | 2011-01-26 | 米巴滑动轴承股份有限公司 | Plain bearing alloy consisting of a tin-based white metal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040076541A1 (en) * | 2002-10-22 | 2004-04-22 | Laughlin John P. | Friction-resistant alloy for use as a bearing |
| AT509111B1 (en) * | 2009-12-10 | 2011-09-15 | Miba Gleitlager Gmbh | SLIDING LAYER |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1369347A (en) * | 2002-03-22 | 2002-09-18 | 北京工业大学 | Magnetically controlled mixed gas protected consumable-electrode weld (MAG) with high deposition coefficient and its special equipment |
| CN1880493A (en) * | 2005-06-13 | 2006-12-20 | 上海飞轮有色冶炼厂 | Tin-base bearing alloy and method for preparing same |
| CN101413542A (en) * | 2007-09-14 | 2009-04-22 | 卓轮Bhw滑动轴承两合公司 | Sliding element and method for its production |
| CN101960029A (en) * | 2008-03-03 | 2011-01-26 | 米巴滑动轴承股份有限公司 | Plain bearing alloy consisting of a tin-based white metal |
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